Home

Hercules II-EBX User Manual - Diamond Systems Corporation

1. Bit 7 6 5 4 3 0 Name PWMD7 0 PWMD7 0 PWM data bits 7 0 PWM Data CSB Base 25 Write Bit 7 6 5 4 3 0 Name PWMD15 8 PWMD15 8 PWM data bits 15 8 Diamond Systems Corporation Hercules II EBX User Manual Page 86 PWM Data MSB Base 26 Write Bit 7 6 5 4 3 2 1 0 Name PWMD23 16 PWMD23 16 PWM data bits 23 16 PWM Command Base 27 Write Bit 7 6 5 4 3 2 1 0 Name FLAG RSVD PWM 1 0 0 CLK 0 POL 0 OUTEN CTR ENA FLAG Command configuration flag 0 command 1 configuration RSVD reserved for future use PWM 1 0 Indicates which of the four PWM circuits to access CLK If FLAG 0 value of bits 1 3 are zero which is the load counter command If FLAG 1 selects internal clock source for both PWM counters 0 10MHz 1 100 KHz POL If FLAG 0 value of bits 1 3 are zero which is the load counter command If FLAG 1 selects polarity of output pulse active level 0 active low level 1 active high level OUTEN If FLAG 0 value of bits 1 3 are zero which is the load counter command If FLAG 1 output enable 0 disabled output held at inactive level based on setting of POL bit 1 enabled CTR ENA If FLAG 0 indicates which counter to act on 0 rate counter 1 duty cycle counter If FLAG 1 0 disabled 1 running Diamond Systems Corporation Hercules II
2. Signal Definition DE 9 Pin Direction DCDn Data Carrier Detect pin 1 Input DSRn Data Set Ready pin 6 Input RXDn Receive Data pin 2 Input RTSn Request to Send pin 7 Output TXDn Transmit Data pin 3 Output CTSn Clear to Send pin 8 Input DTRn Data Terminal Ready pin 4 Output RIn Ring Indicator pin 9 Input NC not connected GND Ground RS 485 Pin Assignment Only J18 connector pins 21 through 40 PORT3 and PORTA are used for RS 485 COM3 NC 21 TXD RXD 3 23 TXD RXD 3 GND 25 NC 27 GND 29 COM4 NC 31 TXD RXD 4 33 TXD RXD 4 GND 35 NC 37 GND 39 Signal Definition DE 9 Pin Direction TXD RXD n Differential Transceiver Data HIGH pin 2 bi directional TXD RXD n Differential Transceiver Data LOW pin 7 bi directional GND Ground NC not connected Diamond Systems Corporation Hercules II EBX User Manual Page 33 RS 422 Pin Assignment Only J18 connector pins 21 through 40 PORT3 and PORT4 are used for RS 422 COM3 NC 21 22 TXD 1 23 24 GND 25 26 RXD 1 27 28 GND 29 30 COM4 NC 31 32 TXD 2 33 34 GND 35 36 RXD 2 37 38 GND 39 40 Signal Definition DE 9 Pin Direction TXD n TXD n Differential transmit data Output RXD n RXD n Differential receive data Input GND Ground NC not connected External Battery Connector
3. Bit 7 6 5 4 3 2 1 0 Name FD12 FD8 FD12 FD8 Current FIFO depth MSB The FIFO depth registers indicates the current depth or number of bytes in the FIFO The depth is reset to 0 when a FIFORST command occurs It increments by one each time a byte from the A D converter is inserted into the FIFO and decrements by one each time a byte is read from the FIFO FD therefore increments decrements by two for a full A D sample write or read operation If a 16 bit read operation occurs FD decrements by 2 after the operation Configuration Base 12 Read Write Bit 7 6 5 4 3 2 1 0 Name LED SINGLE DIOCTR1 DIOCTRO SCINT CLKSRC1 CLKFRQ1 CLKFRQO LED Active high a simple status bit used to drive external LED Default is high upon power up SINGLE Indicates whether to use the global A D input range or the individual input range table for A D conversions 0 use global setting for all channels 1 use the programmed settings for each channel DIOCTRI LO connector DIOE7 4 pins signal selection 0 digital I O lines DIOE7 4 appear on DIOE7 4 pins of I O connectors 1 counter signals appear on DIOE7 4 pins of I O connectors DIOCTRO TO connector DIOE3 0 pins signal selection 0 digital I O lines DIOE3 0 appear on DIOE3 0 pins of I O connectors 1 PWM signals appear on DIOE3 0 pins of I O connectors SCINT A D scan interval selection 0 4uS 1 9uS CLKSRC1 Clock s
4. Bit 7 5 4 3 0 Name WDA7 0 WDA7 0 LSB of timer A divisor Loading occurs for both bytes when the MSB is written Watchdog Timer A MSB Data Base 29 Read Write Bit 7 5 4 3 0 Name WDAI15 8 WDAI15 8 MSB of timer A divisor Loading occurs for both bytes when the MSB is written Watchdog Timer B Data Base 30 Read Write Bit 7 5 4 3 0 Name WDB7 0 WDB7 0 Watchdog timer B data register Loading occurs immediately upon writing to this register Diamond Systems Corporation Hercules II EBX User Manual Page 84 Watchdog Timer Configuration Base 31 Read Write Bit 7 6 5 4 3 2 1 0 Name WDTRIG WDEN WDSMI WDRST WDT 1 WDEDGE WDIEN WDTRIG If this bit is set 1 the remaining bits of this register are ignored and instead watchdog timer A is retriggered i e reloaded with its initial value If this bit is reset 0 the remaining bits in this register are used to configure the watchdog timer circuit WDEN Enable watchdog timer circuit 0 disabled 1 enabled WDSMI Enable SMI interrupt upon watchdog timer timeout WDRST Enable system reset upon watchdog timer timeout setting this clears WDSMI WDT 1 Enable output pulse from timer A 1 clock early on WDO pin of I O connectors This allows WDO to be connected to WDI to prevent watchdog timer timeout as long as the timer is running WDEDGE Select active edge for hardware external retrigger 0 rising edge 1 falling edge WDIEN
5. To enter the BIOS during system startup power on self test POST press F2 Serial Ports The address and interrupt settings for serial ports COM1 2 3 4 may be modified COM1 and COM2 address and interrupt settings are set in the BIOS Advanced menu I O Device Configuration dialog The addresses of COM3 and COM4 are configurable on the board using jumper J5 and are automatically detected by the BIOS The IRQ selections for COM3 and COM4 are configured using jumper J4 These selections are not automatically detected and must be manually configured in the configuration dialog to match the jumper settings IDE Settings The IDE controller provides two separate IDE channels e Primary IDE This IDE Channel is available via connector J16 a 44 pin laptop type IDE connector e Secondary IDE This IDE Channel is available via connector J17 a 40 pin standard UDMA connector Note which channel is the primary and which is the secondary if you are attempting to disable one unused channel in order to free IRQ resources 32 bit I O settings can be manually activated for each drive However this setting only affects low level BIOS accesses to the drives when using BIOS system calls typically under DOS and may cause system instability for OSs or applications that do not support these types of accesses For general operation this does not provide a noticeable performance boost and the setting should be left disabled unless absolutely
6. BIOS Console Redirection Settings For applications where the Video interfaces is not used the textual feedback typically sent to the monitor can be redirected to a COM PORT In this way a system can be managed and booted without a video connection The BIOS allows the following configuration options for Console Redirection to a COM PORT e COM PORT Address Disabled default COM PORT A or COM PORT B NOTE If Console Redirection is enabled here note that the Associated COM PORT A here referring to COM 1 and B referring to COM 2 will be enabled regardless of the COM PORT settings elsewhere e Continue CR After POST Off default or On This determines if the system is to Wait for CR over COM PORT before continuing after POST is complete and before the OS starts loading e Baud Rate 19 2K default 300 1200 2400 9600 38 4K 57 6K 115 2K e Console Connection Direct default or Modem e Console Type PC ANSI default VT100 VT100 8 bit PC ANSI 7 bit VT 100 or VT UTF8 e Flow Control CTS RTS default XON XOFF None e Number of video Pages to support 1 default to 8 Note Console Redirection only works for text based interaction If the OS enables video and uses direct video functions which is the case with a Linux X terminal or Windows the Console Redirection has no effect and video is required Diamond Systems Corporation Hercules II EBX User Manual Page 62 System I O
7. Diamond Systems Corporation Hercules II EBX User Manual Page 74 A D MSB Base 1 Read Bit 7 6 5 4 3 2 1 0 Name ADIS AD14 AD13 AD12 ADI AD10 AD9 AD8 AD15 AD8 A D MSB data The A D data must be read LSB first followed by MSB A D Low Channel Base 2 Read Write Bit 7 6 5 4 3 2 1 0 Name L4 L3 L2 Ll LO L4 L0 A D low channel number A D High Channel Base 3 Read Write Bit 7 6 5 4 3 2 1 0 Name H4 H3 H2 HI HO H4 H0 A D high channel number A D Input Range Control Base 4 Write Bit 7 6 5 4 3 2 1 0 Name LDAD G 1 0 LDAD The FPGA contains a global input range setting as well as a 32x4 table for all 32 input channels that can be used for individual input ranges for each channel The chip uses either the global input range setting or the individual range table based on the setting of the SINGLE bit in register Base 12 If this bit is set 1 the remaining bits are stored as the individual input range for the A D channel currently set by L4 LO in register Base 2 If this bit is reset 0 the remaining bits are the global setting for all input channels G 1 0 Gain The gain is the ratio between the input voltage and the voltage seen by the A D converter The A D always works with a maximum input voltage of 10V A gain of 2 means the maximum input voltage
8. FlashDisk Programmer Board The FlashDisk Programmer Board accessory model no ACC IDEEXT may be used for several purposes Its primary purpose is to enable the simultaneous connection of both a FlashDisk module and a standard IDE hard drive or CD ROM drive to allow file transfers to from the FlashDisk This operation is normally done at system setup The board can also be used to enable the simultaneous connection of two drives to the CPU Connector J1 connects to the IDE connector on Hercules II EBX with a 44 pin ribbon cable Diamond Systems Corporation part no 698004 Both 40 pin 1 inch spacing J4 and 44 pin 2mm spacing J3 headers are provided for the external hard drive or CD ROM drive A dedicated connector J2 is provided for the FlashDisk module Any two devices may be connected simultaneously using this board with proper master slave jumper configurations on the devices The FlashDisk Programmer Board comes with a 44 wire cable no DSC no 698004 and a 40 wire cable no DSC no C 40 18 for connection to external drives The FlashDisk module is sold separately The 44 pin connector J1 J2 and J3 and mating cable carry power but the 40 pin connector J4 and mating cable do not Connectors J5 and J6 on the accessory board may be used to provide power to a 44 pin device attached to the board when the board is attached to a PC via a 40 pin cable These headers are compatible with the floppy drive power connector on a standard
9. enabled CLKSEL A D hardware clock select only applies when CLKEN 1 0 rising edge of counter timer 0 1 falling edge on external trigger from I O connector CLKEN A D hardware clock enable When CLKEN 1 the A D circuit is triggered by the hardware clock selected with CLKSEL above and the software A D trigger is disabled 0 disabled 1 enabled Diamond Systems Corporation Hercules II EBX User Manual Page 79 Operation Status Base 14 Read Bit 7 6 5 4 3 2 1 0 Name TINT DINT AINT OVF FF TF EF TINT Timer interrupt status 1 interrupt pending 0 no interrupt pending DINT Digital I O interrupt status 1 interrupt pending 0 no interrupt pending AINT A D interrupt status 1 interrupt pending 0 no interrupt pending OVF FIFO overflow flag Overflow occurs when the FIFO is full and an A D conversion occurs If OVF is set it will stay set until the FIFO is reset with a FIFORST command 0 no overflow 1 overflow FF FIFO full flag 0 FIFO is not full 1 FIFO is full TF FIFO threshold flag 0 FIFO depth is below the programmed threshold 1 FIFO depth is at or above the programmed threshold EF FIFO empty flag 0 not empty 1 empty Command Base 15 Write Bit 7 6 5 4 3 2 1 0 Name FIFORST DARST CLRT CLRD CLRA ADSTART FIFORST Reset the FIFO After this command OVF FF and TF 0 and EF 1 DARST Reset the D A Al
10. Base 6 LSB outp Base 7 MSB Set Registers for Channel After the value for the given channel is set make the channel selection to latch the data to the D A Decide whether or not to pass the data to the D A immediately transparent pass through mode or to latch and hold the data until all of the D A channels are set simultaneous update mode Transparent pass through mode sends the data written in the previous step to the D A beginning immediately after the channel selection is made The D A output is updated as soon as the data is transferred with a worst case settling time of 10usec as described in the DAC7715 specification Simultaneous update mode latches the data into an internal buffer for that channel but will not update the A D until instructed to do so In this way several or all four of the A D channels can be configured and updated simultaneously This allows for a uniform transition time for all A D outputs To send the data to the D A immediately write the channel number to Page 0 register Base 5 bits 1 0 For transparent pass through mode bit 8 should be reset to zero as shown outp Base 5 ChannelNumber where ChannelNumber is 0 3 To latch the data in preparation for more updates not sending the data to the D A until channel data updates are completed write the channel number to Page 0 register Base 5 bits 1 0 also setting bit 8 to 1 as shown outp Base 5 0x80 ChannelNumber
11. Ethernet Hercules II EBX includes a 10 100Mbps Ethernet connection using Cat 5 100BaseT wiring The signals are provided on two connectors on the right edge of the board Jumper Block Connector Type J10 RJ45 Jil 6 pin header The Ethernet chip is the National Semiconductor DP83815 MacPhyter chip which is connected to the system using the board s internal PCI bus The Hercules II EBX Software CD includes Ethernet drivers for Windows 95 Windows 98 Windows NT and Linux The latest drivers can also be downloaded from National Semiconductor s website at www national com Search for DP83815 to reach the product folder A DOS utility program is provided for testing the chip and accessing the configuration EEPROM Each board is factory configured with a unique MAC address using the program To run the program boot the computer to DOS do not run the program as a DOS window inside of a Windows OS In normal operation this program is not needed Note Additional software support includes a packet driver with software to allow a full TCP IP implementation Serial Ports Hercules II EBX contains four serial ports Each port is capable of transmitting at speeds up to 115 2Kbaud Ports COM and COM2 are built into the standard chipset which are standard 16550 UARTs with 16 byte FIFOs Ports COM3 and COM4 are derived from an Exar 16C2850 dual UART chip and include 128 byte FIFOs These ports may be operated at speed
12. The input is a 1OMHz or 100 kHz clock provided on the board and selected with bit CKFRQO in Page 0 Base 12 bit zero The gate is an optional signal that can be input on pin 40 of the I O header J8 when Page 0 register DIOCTRI Base 12 bit 5 is one If this signal is not used the counter runs freely The TOUT 0 signal output is a positive pulse whose frequency is equal to the input clock divided by the 24 bit divisor programmed into the counter The output is always present on pin 42 of the I O header J8 The counter operates by counting down from the programmed divisor value When it reaches zero it outputs a positive going pulse equal to one input clock period of 100ns or 10us depending on the input clock selected by CKFRQO It then reloads to the initial load value and repeats the process indefinitely The output frequency can range from SMHz 10MHz clock divisor 2 down to 0 006Hz 100 kHz clock divided by 16 777 215 or 2 1 The output is fed into the A D timing circuit and can be selected to trigger A D conversions when AINTE is one and CLKSEL is zero in Base 13 bit 1 Using the control Page 0 registers at Base 13 and Base 27 the counter can be loaded cleared enabled and disabled The optional gate can be enabled and disabled and the counter value can be latched for reading Counter 1 Counting Totalizing Functions The second counter Counter 1 is similar to Counter 0 except it is a 16 bit counter It also has an internal clo
13. described in more detail below The descriptions use direct programming instead of driver software 1 Compute the D A code for the desired output voltage 2 Write the value to the selected output channel 3 Wait for the D A to update Compute the D A Code for the Desired Output Voltage Use the formulas on the preceding pages to compute the D A code required to generate the desired voltage Note The DAC cannot generate the actual full scale reference voltage to do so would require an output code of 4096 which is not possible with a 12 bit number The maximum output value is 4095 Therefore the maximum possible output voltage is always 1 LSB less than the full scale reference voltage Write the Value to the Selected Output Channel Registers Use the following formulas to compute the LSB and MSB values LSB D A Code amp 255 keep only the low 8 bits MSB int D A code 256 strip off low 8 bits keep 4 high bits Diamond Systems Corporation Hercules II EBX User Manual Page 103 Example For Output code 1776 Compute LSB 1776 amp 255 240 OxF0 and MSB int 1776 256 int 6 9375 6 The LSB is an 8 bit number in the range 0 255 The MSB is a 4 bit number in the range 0 15 The MSB is always rounded down The truncated portion is accounted for by the LSB Write the computed values to the output registers The LSB is written to Page 0 register Base 6 The MSB is written to Page 0 register Base 7 outp
14. 15 37 38 Input ground 39 40 Vin 18 Vin2 11 12 Vin2 Vin 19 Vin3 13 14 Vin 3 Vin 20 Vin4 15 16 Vin 4 Vin 21 Vin 5 Vin 22 Vin 6 Vin 23 Vin 7 Vin 24 Vin 8 Vin 25 Vin 9 Vin 26 Vin 10 Vin 27 Vin 11 Vin 28 Vin 12 Vin 29 Vin 13 Vin 30 Vin 14 Vin 31 Vin 15 Input ground Input ground 39 40 Input ground Signal Definition Vout3 0 Analog output channels 3 0 Output Ground Analog ground OV reference for VOut3 0 Vin31 Vin0 Analog input channels 31 0 in single ended mode Vin 15 Vin 0 High side of input channels 15 0 in differential mode Vin 15 Vin 0 Low side of input channels 15 0 in differential mode Input Ground Analog ground OV reference for VIn31 0 NOTE These reference grounds are NOT decoupled from the power grounds they are indirectly connected to the power supply input and other on board ground 0V references Do not assume that these grounds are floating do not apply a high voltage input relative to the power input ground to these ground signals or to Ethernet Connectors any other board I O pin Ethernet connectivity is provided by connectors J10 and J11 Connector J10 is a board mounted RJ 45 connector and connector J11 is a 1x6 pin header Connector J11 mates with Diamond Systems Corporation cable no 698002 which provides a panel moun
15. 16 bit signed integer in the range 32768 to 32767 The A D LSB register and A D LSB register can be combined in one 16 bit read These two registers fully support 16 bit I O reads in hardware so the most efficient I O method is to read the two bytes as a single 16 bit word Diamond Systems Corporation Hercules II EBX User Manual Page 96 Note The data range always includes both positive and negative values even if the board is set to a unipolar input range The data must now be converted to volts or other engineering units by using a conversion formula as shown below In scan mode the behavior is the same except that when the program initiates a conversion All channels in the programmed channel range are sampled once and the data are stored in the FIFO The FIFO depth register increments by the scan size When ADBUSY goes low the program should read the data for all channels Convert the numerical data to a meaningful value Once the A D value is read it needs to be converted to a meaningful value The first step is to convert it back to the actual measured voltage Afterwards you may need to convert the voltage to some other engineering units For example the voltage may come from a temperature sensor and the voltage would then need to be converted to the corresponding temperature according to the temperature sensor s characteristics Since there are a large number of possible input devices this secondary step is not included he
16. 8 J7 Standard button LED utility connector Phyco 2120 20S J8 Data acquisition digital I O 50 pin Phyco 2120 50S J9 Data acquisition analog I O 40 pin Phyco 2120 40S J10 RJ 45 Ethernet Capsco Sales Inc GD PNS 88 J11 Ethernet header Digikey 640456 6 J12 Audio I O Digikey A1925 J13 Speaker Standard 2x5 0 1 Box header J14 CD Input Molex 70543 0003 J15 External auxiliary power output Digikey 640456 4 J16 Primary IDE All American Semiconductor 2115 2X22GDP PPTB 17 Secondary IDE Phyco 2120 40S with pin 20 removed J18 RS232 RS485 RS422 serial I O Phyco 2120 40S J20 External battery Digikey A1921 n1 USB 2 3 USB 1 1 Standard 2x5 0 1 header with pin 1 removed 122 USB 0 1 USB 1 1 Standard 2x5 0 1 header with pin 1 removed 123 USB1 USB 1 1 Capsco Sales Inc KUSB AS 1 N WHT 74 LCD panel LVDS interface JST Part No BM30B SRDS G TF J25 VGA Standard 2x5 0 1 Box header J26 Video TV out Digikey 640456 5 J27 CPU fan Heilind Electronics 89400 0320 J28 LCD backlight Digikey A19470 J29 Low voltage power input Digikey A1925 J30 High voltage power input optional Digikey A1921 J34 CompactFlash slot on bottom of board 136 Non functional Standard 2x5 0 1 header with pin 1 removed 137 Non functional Standard 2x5 0 1 header with pin 1 removed Diamond Systems Corporation Hercules II EBX User Manual Page 15 Jumper Summary The following table lists the jumpers on the bo
17. Base 12 and Base 13 EEPROM Access Key Base 31 Write Bit 7 6 5 4 3 2 1 0 Name EEPROM Access Key EEPROM To access the EEPROM write the value 0xA5 10100101 to this register each time after setting the Access Key PAGE bit in order This helps prevent accidental corruption of EEPROM contents FPGA Revision Code Base 31 Read Bit 7 6 5 4 3 2 1 0 Name FPGA Revision Code FPGA This register indicates the revision number of the FPGA design The current revision code is 0x40 Revision Code Diamond Systems Corporation Hercules II EBX User Manual Page 89 Page 2 Register Definitions Page Select and Reset Command Base 0 Write Bit 7 6 5 4 3 2 1 0 Name HOLDOFF RESET PAGE HOLDOFF When this bit is set the chip ignores any data written to this register This bit enables shadowing this register with another device at the same address RESET Reset the entire data acquisition circuit After a reset the following conditions are true e Digital I O ports are set to input mode and all output registers are cleared to 0 e A D channel registers and range settings are cleared to zero except for the Analog Configuration Register Base 1 which is set to 0x04 e D A channels are cleared to mid scale or zero scale depending on the board jumper setting e Counter timers are disabled and counter registers are cl
18. CMOS RAM which will return the BIOS to its default settings CMOS RAM may be erased by removing the BAT jumper on the J5 jumper block Note Before erasing CMOS RAM write down any custom BIOS settings you have made If you erase the CMOS RAM the next time the CPU powers up COM2 returns to the default settings of 115 2Kbaud N 8 1 and operates only during POST If you selected COMA or COMB continue with the configuration as follows 1 For Console Type select PC ANSI 2 You can modify the baud rate and flow control here if desired 3 At the bottom for Continue C R after POST select Off default to turn off after POST or select On to remain on always 4 Exit the BIOS and save your settings Diamond Systems Corporation Hercules II EBX User Manual Page 56 Watchdog Timer Hercules II EBX contains a watchdog timer circuit consisting of two programmable timers WD1 and WD2 cascaded together The input to the circuit is WDI and the output is WDO Both signals appear on digital I O connector J8 WDI may be triggered in hardware or in software A special early version of WDO may be output on the WDO pin When this signal is connected to WDI the watchdog circuit is re triggered automatically The watchdog timer block diagram is shown in Figure 40 Figure 40 Watchdog Timer Block Diagram SMI RESET WDO WD1 WD2 WD 16 bit counter 8 bit counter 6 5535 sec 0 0255 sec et max max 10kHz The durati
19. Enable external input hardware watchdog trigger instead of on board software trigger 0 internal trigger only 1 external trigger plus internal trigger are enabled Diamond Systems Corporation Hercules II EBX User Manual Page 85 Page 1 Register Definitions Page Select and Reset Command Base 0 Write Bit 7 6 Name HOLDOFF RESET PAGE HOLDOFF When this bit is set the chip ignores any data written to this register This bit enables shadowing this register with another device at the same address RESET PAGE PWM Data LSB Base 24 Write Reset the entire data acquisition circuit After a reset the following conditions are true e Digital I O ports are set to input mode and all output registers are cleared to 0 e A D channel registers and range settings are cleared to zero except for the Analog Configuration Register Base 1 which is set to 0x04 e D A channels are cleared to mid scale or zero scale depending on the board jumper setting e Counter timers are disabled and counter registers are cleared to zero e Watchdog timer is disabled and timer registers are cleared to zero e FIFO is reset causing all contents to be lost and threshold is set to 1024 samples e The internal channel gain table is reset to all zeros Select page 0 Main features page 1 Extended features page 2 ID page 3 Copyright notice page
20. J28 Connector sse PIN 1 1 12v 2 Control 3 Ground Signal Definition Control Output signal from Hercules II EBX to allow power down of backlight 12V Power supply for LCD Backlight assembly Ground Ground for LCD Backlight assembly Diamond Systems Corporation Hercules II EBX User Manual Page 40 The control signal is used to allow the system to power down the backlight when the system enables monitor power down during power management control The 12V supply is removed when the system is powered down Low Voltage Power Input Connector The standard Hercules II EBX input power is supplied through the J29 connector from an external mid range supply An option for higher voltage power supply input may be available Figure 24 J29 Connector ooo ES Vin Vin Ground Ground 12v Ground Vin 12v 5v o CO NI 0 om A Goal N gt o Power supply ON Signal Definition Vin Main input power 5V to 28V optional input range Ground 0 V ground power return path 12V Power supply for in board 12V devices including hard drives auxiliary power PC 104 power and LCD backlight Range should be 11 9V to 13 5V measured at this connector 12V Power supply for PC 104 Plus 12V devices no on board devices 5V Power supply for PC 104 Plus 5V devices no on board devices Power Supply ON Feedback pin for external ATX supply when needed
21. LSB Ctr timer LSB 25 Ctr timer CSB Ctr timer CSB 26 Ctr timer MSB Ctr timer MSB 27 Ctr command configuration register 28 Watchdog timer A LSB Watchdog timer A LSB 29 Watchdog timer A MSB Watchdog timer A MSB 30 Watchdog timer B data Watchdog timer B data 31 Watchdog configuration register Watchdog config register readback Diamond Systems Corporation Hercules II EBX User Manual Page 69 Page 1 Base Write Function Read Function 24 PWM data register LSB PWM data register LSB 25 PWM data register CSB PWM data register CSB 26 PWM data register MSB PWM data register MSB 27 PWM configuration register 28 Autocal EEPROM TrimDAC Data Autocal EEPROM TrimDAC Data 29 Autocal EEPROM TrimDAC Address Autocal EEPROM TrimDAC Address 30 Autocal Calibration Control register Autocal Calibration Status register 31 Autocal EEPROM Access Key Register FPGA Revision Code Page 2 Base Write Function Read Function 24 D A waveform future Feature ID register A D 25 D A waveform future Feature ID register D A 26 D A waveform future Feature ID register DIO 27 D A waveform future Feature ID register Ctr timers 28 D A waveform future Device ID register 29 D A waveform future Device ID register 30 31 Note When pages 1 or 2 are enabled the page 0 registers at addresses 0 23 are still accessible Page 3 is a 27 byte page occup
22. O C3 3 O O 4 c3 lo o AD 10 0 5 ATX INT COM C3 q 9 CAT 422T C4 422 J4 oo O O ATX H o 310 0 4 O O AD AD 1900 5 o O C4 oo oo oo oo oo oo ATX INT COM J4 oo O O ATX 3 1991 4 O O AD oo oo oo oo oo oo oo oo ATX INT COM 422 Diamond Systems Corporation Hercules II EBX User Manual Page 47 Figure 29 shows how to select the IRQ for the A D circuit Figure 29 A D IRQ Selection Examples AD IRQ4 AD IRQ5 A C3 l wO C3T 4227 422 oloojoooooooo 00000000000 3 mm F 3 Q CAT 4227 E Q BAT C3 15 J4 oo ol ATX oo y ATX INT COM J4 oo ol ATX oo oo oo oo O o oo oo oo oo oo oo oo ATX INT COM AD IRQ5 AD IRQ7 C3 K Q o 3 cat 4227 422 a 9 olooooooo 9999999 9 or CAT 422T CA lt 422 BAT 15 J4 oo O ATX 0 0 9 c4 lo o c3 3 leo o 4 ATX INT COM J4 o o o ATX 00 3 c4 lo ol c3 3 le o 4 c3 lo o AD BI E nK oo OO OO OO oo oo ATX INT COM or CAT 422T CA lt 422 ATX Power Control The ATX power control is set using the J4 ATX jumper shown in Figure 30 Figure 30 ATX Power Control Jumper ke x C3 atoS 42u08 cat mr 42 S O Ji 2 GP o0o000000000 Dir a arani aia control E AAA AAA Z powers up immediately 2323an AT aT D k 422 If the ATX jumper is out ATX works normally and an external momentary switch may be used to turn power ON and OFF A quick contact turns the power ON and a long contac
23. OS power management settings pre empt these settings The only power management mode supported by the system is Power On Suspend Other suspend modes are not supported and should not be used under any OS Examples of unsupported suspend modes are Hibernate under Windows and Suspend to Disk or Suspend to RAM The Memory Shadow page of BIOS options should not be modified without an advanced understanding of these options These settings can adversely affect system performance and potentially system reliability BIOS Download Crisis Recovery Because the BIOS is stored in reprogrammable Flash memory it is possible that the BIOS could be accidentally erased when trying to write other files into the Flash To recover from this situation the CPU chip on Hercules II EBX contains a special failsafe section of ROM code that can be activated on power up A Diamond Systems Corporation software utility is provided to enable system recovery by downloading the BIOS to the flash memory through a USB floppy drive when the CPU is booted Typically this crisis recovery process is initiated by shorting the Crisis Recovery pads on the main board located just under J18 while powering up the unit If the board is mounted in such a manner that these pins are not readily accessible then Crisis Recovery should be initiated by shorting RTS to RI on COM1 Diamond Systems Corporation Hercules II EBX User Manual Page 60 The following sequ
24. PWMD6 PWMD5 PWMD4 PWMD3 PWMD2 PWMD1 PWMDO 25 PWMD15 PWMD14 PWMD13 PWMD12 PWMD11 PWMD10 PWMD9 PWMD8 26 PWMD23 PWMD22 PWMD21 PWMD20 PWMD19 PWMD18 PWMD17 PWMD16 27 5 5 S g E 28 D7 D6 D5 D4 D3 D2 DI DO 29 A6 A5 A4 A3 A2 Al A0 30 0 TDBUSE EEBUSY CMUXEN 0 0 0 0 31 5 E Page 2 Write Offsets base 24 through base 31 are reserved for a future D A waveform generator circuit Base 7 6 5 4 3 2 1 0 O HOLDOFF RESET PAGE PAGEO 24 E S S S S gt 25 E S gt E S 26 S S S i S S 27 S E S S 28 S S S S 29 E S S g l 30 E S S S E S S 31 S A gt S E Page 2 Read Base 7 6 5 4 3 2 1 0 0 CR S Si 24 ADQ7 ADQ6 ADOS ADQ4 ADQ3 ADQ2 ADO ADQO 25 FDID2 FDID1 FDIDO DAQ4 DAQ3 DAQ2 DAQ DAQO 26 DIOQ7 DIOQ6 DIOQ5 DIOQ4 DIOQ3 DIOQ2 DIOQ1 DIOQO 27 PWMQ3 PWMQ2 PWMQl1 PWMQO CTRQ3 CTRQ2 CTRQI CTRQO 28 1D7 ID6 IDS ID4 1D3 1D2 IDI IDO 29 ID15 ID14 ID13 1D12 ID11 ID10 ID9 ID8 30 S a S E S E 31 LO Register Definitions Page 0 Register Definitions Page Select and Reset Command Base 0 Write Diamond Systems Corporation Hercules II EBX User Manual Page 73 Page Select and Reset Command Base 0 Write Bit 7 6 5 Name HOLDOFF RESET PAGE HOLDOFF When this bit is set the chip ignores any data written
25. Unipolar 0 0 0 10V 153uv Unipolar 0 1 0 5V 76uV Unipolar 1 0 0 2 5V 38uV Unipolar 1 1 0 1 25V 19uV Diamond Systems Corporation Hercules II EBX User Manual Page 94 Performing an A D Conversion This chapter describes the steps involved in performing an A D conversion on a selected input channel using direct programming without the driver software Performing an A D conversion according to the following steps Each step is discussed in detail below 1 Select the input channel 2 Select the input range 3 Wait for analog input circuit to settle 4 Initiate an A D conversion 5 Wait for the conversion to finish 6 Read the data from the board 7 Convert the numerical data to a meaningful value Select the Input Channel To select the input channel to read write a low channel high channel pair to the Page 0 register pair A D Low Channel Base 2 and A D High Channel Base 3 For the Hercules II EBX only 5 bits are supported for each setting for 32 potential input source channels When you write any value to these registers the current A D channel is set to the low channel For example to set the board to channel 4 only write 0x04 to Base 2 low channel and 0x04 to Base 3 high channel To set the board to read channels 0 through 15 write 0x00 to Base 2 low channel and Ox0F to Base 3 high channel When you perform an A D conversion the current channel is automatically incremen
26. Width Modulation Example The following is a programming example to output a 1K Hz signal with a 25 high duty cycle on PWM output 2 Note For 1KHz output either reference clock 1OMHz or 100KHz is suitable In this example we use the 10MHz reference clock 1 Determine the value for the output frequency counter counter 0 Counter 0 Value Reference Clock Desired Rate Counter 0 Value 10MHz 1Khz Counter 0 Value 10000 2 Determine the value for the duty cycle counter counter 1 Counter 1 Value Timer 0 Value Duty Cycle Counter value 10000 0 25 Counter value 2500 3 Program the two counters outp base 0 1 Set page 1 for PWM functions GU Counter 0 Value 10000 outp base 24 c0 gt gt 0 amp OxFF Counter 0 bits 0 7 outp base 25 c0 gt gt 8 amp OxFF Counter 0 bits 8 15 outp base 26 c0 gt gt 16 amp OxFF Counter 0 bitrs 16 23 outp base 27 0x20 This loads the value into counter 0 for PWM circuit 2 cl Counter 1 Value 2500 outp base 24 cl gt gt 0 amp OxFF Counter 1 bits 0 7 outp base 25 cl gt gt 8 amp OxFF Counter 1 bits 8 15 outp base 26 cl gt gt 16 amp OxFF Counter 1 bitrs 16 23 outp base 27 0x21 This loads the value into counter 1 for PWM circuit 2 4 Configure and enable PWM output 2 These are the desired configuration values for Base 27 Bit Value Description BIT7 1 Indicates PW
27. a serial port referred to as console redirection A serial port on another PC can be connected to the serial port on Hercules II EBX with a null modem cable and a terminal emulation program such as HyperTerminal can be used to establish the connection The terminal program must be capable of transmitting special characters including F2 some programs or configurations trap special characters The default Hercules II EBX BIOS setting enables console redirection onto COM2 during power on self test POST Communication parameters are 115 2Kbaud N 8 1 When the CPU is powered up the BIOS outputs POST information to COM2 and monitors the port it for any keyboard activity You can enter the BIOS by pressing F2 during this time interval In the default configuration console redirection is disabled after POST is finished and the CPU boots There are three possible configurations for console redirection e POST only default e Always On e Disabled To modify the console redirection settings 1 Enter the BIOS 2 Select the Advanced menu 3 Select Console Redirection 4 In Com Port Address select Disabled to disable the function On board COM A for COM1 or On board COM B for COM2 default If you select Disabled you will not be able to enter BIOS again during power up through the serial port To reenter BIOS when console redirection is disabled you must either install a PC 104 video board and use a keyboard and terminal or erase the
28. and miniature applications PC 104 modules stack together with 0 6 spacing between boards 0 662 pitch including the thickness of the PCB Hercules II EBX uses the PCI bus internally to connect the Ethernet circuit to the processor It uses the ISA bus internally to connect serial ports 3 and 4 as well as the data acquisition circuit to the processor Both the ISA and PCI buses are brought out to expansion connectors for the connection of add on boards Diamond Systems manufactures a wide variety of compatible PC 104 add on boards for analog I O digital I O counter timer functions serial ports and power supplies This manual includes e An introduction to the Hercules IT EBX e Board connectors e Configuration information e A description of each of the board subsystems and their usage e Board specifications e Additional resource information Description and Features The Hercules II EBX s an upgrade to the existing Hercules product The board is an all in one embedded CPU with the following key system and data acquisition features Processor Section e Pentium 3 class Via Mark Integrated Processor and North Bridge e 265 512MB SDRAM system memory depending on configuration e 100MHz memory bus e 2MB 16 bit wide integrated flash memory for BIOS and user programs e 2D amp 3D VGA Video graphics engine VESA style VGA output with DDC Monitor support e 33MHz PCI Bus I O Section e 4 serial ports 115 2kbaud m
29. are paged to provide full access to additional registers for additional functions four pages 0 3 are available Page is configured using the first register of the address space located at the base address Byte zero is always present and is mirrored across all four pages so the page register is always available NOTE All data is accurate as of FPGA Design Specification Revision 1 79 The following tables list the register functions and base address offset for each of the four pages Page 0 Base Write Function Read Function 0 Reset page register A D LSB 1 Analog configuration register A D MSB 2 A D low channel A D low channel readback 3 A D high channel A D high channel readback 4 A D range register A D range status readback 5 D A channel 6 D A LSB 7 D A MSB 8 FIFO threshold LSB FIFO threshold LSB readback 9 FIFO threshold MSB FIFO threshold MSB readback 10 FIFO depth LSB 11 FIFO depth MSB 12 Configuration register Configuration register readback 13 Operation control register Operation control register readback 14 Operation status register 15 Command register Hardware config A D channel readback 16 DIO port A DIO port A 17 DIO port B DIO port B 18 DIO port C DIO port C 19 DIO port D DIO port D 20 DIO port E DIO port E 21 22 DIO config bit set DIO config readback 23 24 Ctr timer
30. connection every 10 milliseconds outp base 0 0x00 set page 0 outp base 28 100 OxFF set LSB of WD timer A 10 milliseconds outp base 29 100 gt gt 8 K OxFF set MSB of WD timer A outp base 30 OxFF set WD timer B to 0 0255 seconds outp base 31 0x2D set WDEN 1 WDRST 1 WDT 1 1 WDIEN 1 When timer A reaches 1 a rising edge flows from WDO to WDI resetting the timer back to 100 and lowering WDO When the connection from WDO to WDI is broken the rising edge never reaches WDI and system resets Diamond Systems Corporation Hercules II EBX User Manual Page 119 Data Acquisition Specifications Data Acquisition units only Analog Inputs e No of inputs 16 differential or 32 single ended user selectable e A D resolution 16 bits 1 65 536 of full scale e Input ranges Bipolar 10V 5V 2 5V 1 25V Unipolar 0 10V 0 5V 0 2 5V e Input bias current 50nA max e Maximum input voltage 10V for linear operation Over voltage protection 35V on any analog input without damage e Nonlinearity 3LSB no missing codes e Drift 5PPM C typical e Conversion rate 100 000 samples per second max e Conversion trigger software trigger internal pacer clock or external TTL signal e FIFO 48 samples programmable interrupt threshold Analog Outputs e No of outputs 4 e D A resolution 12 bits 1 4096 of full scale e Output ranges Unipolar 0 10V or use
31. data is transferred directly out to the DAC s transparent mode or is latched and held for a later simultaneous update D A LSB Base 6 Write Bit 7 6 5 4 3 2 1 0 Name DA7 DAO DA7 DAO D A LSB data Diamond Systems Corporation Hercules II EBX User Manual Page 76 D A MSB Base 7 Write Bit 7 6 5 4 3 1 0 Name DA15 DA8 amp DAI5 DA8 D A MSB data FIFO Threshold LSB Base 8 Read Write Bit 7 6 5 4 3 1 0 Name FT7 FTO FT7 FTO FIFO threshold value LSB FIFO Threshold MSB Base 9 Read Write Bit 7 6 5 4 3 1 0 Name FT10 FT8 FT10 FT8 FIFO threshold value MSB When the FIFO depth is greater than or equal to the FIFO threshold TF threshold flag 1 and an A D interrupt request will be generated if FIFOEN 1 and ADINTE 1 The FIFO size is 2048 samples The threshold value may be anywhere from 1 to 2047 samples In most cases the threshold does not need to be larger than one half the FIFO size or 1024 samples On power up or system reset the FIFO threshold is set to 1024 samples FIFO Depth LSB Base 10 Read Bit 7 6 5 4 3 1 0 Name FD7 FDO FD7 FDO Current FIFO depth LSB Diamond Systems Corporation Hercules II EBX User Manual Page 77 FIFO Depth MSB Base 11 Read
32. external clocking capability e 4 programmable pulse width modulation signals with 0 to 100 duty cycle capability System Features e Plug and play BIOS with IDE auto detection 32 bit IDE access and LBA support e One CompactFlash socket e Built in fail safe boot ROM for system recovery in case of BIOS corruption e User selectable COM1 or COM2 terminal mode e On board lithium backup battery for real time clock and CMOS RAM e ATX power switching capability e Programmable watchdog timer e Wide input SVDC 28VDC power supply Jumper select for SVDC operation from the PC 104 bus Extended temperature range operation 40 to 85 C Diamond Systems Corporation Hercules II EBX User Manual Page 9 Block Diagram Figure shows the Hercules II EBX functional blocks Figure 1 Hercules II EBX Functional Block Diagram HERCULES II BLOCK DIAGRAM VIA HARK DCIDC 5 28 VDC COREFUSION 512MB nee POWER IN PROCESSOR SDRAM SUPPLY 550 1800 MHz XVGA INTEGRATED SAVAGE 4 3D LCDILVDS VIDEO TV OUT AUDIO VIA VT 1612 MIC LINE AUX CODEC SPEAKERS STEREO AMP ATA100 IDE VIA VT920626 SOUTH BRIDGE 4 USB 1 1 PORTS COMI COMA 2 RS 232 PORTS g PS 2 KBD amp MOUSE EB E INTERNAL ISA BUS S ger CON 3 CONA 2 RS 232M22M85 PORTS CS M 32 ANAL OG INPUTS 1 2 MB FLASH MEMORY 4 ANALOG OUTPUTS DATA DEEN SERIES A ges CIRCUIT ee eee eee eee enews 2 COUNTERITIMERS FPGA CODE WATCHDOG TIMER PCH04 ISA BU
33. gain e Default no connection provides 10dB of gain The maximum output power is specified to provide up to two Watts into a 4 Ohm speaker load Note that this output power is drawn from the on board 5V supply The speakers are driven using a Bridged Tied Load BTL amplifier configuration This is a differential speaker connection As such each speaker should be wired directly to the appropriate pair of connections for that speaker e Do not connect the speaker low sides to ground e Do not short the speaker low connections together CD Input Connector Connector J14 provides a connector for a PC standard CD input cable Figure 12 J14 Connector Fees Pin 1 SS Left CD input Left ground Right ground Right CD input B O N J14 provides the CD Audio Input to the AC97 Sound circuitry The connector is an industry standard CD IN connector which is common in most desktop Personal Computers Note that the left and right grounds are decoupled but are also tied together on board This input is intended for CD input only De no amplified or microphone inputs External Auxiliary Power Connector Output Connector J15 provides switched power for use with external drives If ATX is enabled the power is switched ON and OFF with the ATX input switch If ATX is not enabled the power is switched ON and OFF in conjunction with the external power Figure 13 J15 Connector LOOO PIN 1 Diamond Systems Corporation Herc
34. input 3 3v standby The 3 3V standby pin provides a special standby voltage regardless of system power down mode This voltage is present whenever the system has power connected regardless of the current system power down state This voltage is not intended as a major power source for external devices Instead it is intended to allow external display of current system power status This power supply should not be used unless absolutely necessary in which case 1t should only be used as a source for LED display or similar power draw Network activity LED The Network activity LED pin provides a signal that is the same as the LED marked ACT on the main board It lights during receive or transmit activity on the Ethernet connection An LED should be tied between power and this pin Network 100 Mbit link The Network 100Mbit link pin provides a signal that is the same as the LED marked 100 on the main board It lights whenever a 100MBit Ethernet link is established An LED should be tied between power and this pin IDE LED The IDE LED is referenced to 5V out and requires a series resistor Connect the LED directly between this pin and resistor to 5V Power LED The Power LED referenced to 5V out does not require a series resistor Connect the LED directly between this pin and 5V Out Note that this displays the system main power If the system is in a power down mode this LED may be inacti
35. pulse with a 200ms duration The PCI Reset is active low with a typical pulse width duration of 200 msec On Board Video The on board video for the Hercules II EBX is based on an S3 TwisterT VIA 8606 PN133T North Bridge video system As such the board memory is shared between the video and main system memory Using BIOS settings accessible in the BIOS configuration menus a block of memory is configured for video which is then removed from use for main system memory This implies that the more memory used for video the less memory is available for system resources The video memory can be set at 8Mbytes for almost all applications Increasing the memory size does not increase video performance Additional memory only benefits the limited 3D support provided by the chipset Also the 3D hardware acceleration is not supported across extended temperature ranges In general since this 3D hardware is typically used for 3D games it is unlikely that these limitations will affect most embedded applications The low level BIOS can support LCD output in conjunction with standard RGB output i e dual displays Similar support for TV output is limited to the OS the BIOS itself does not directly support the TV Out functionality Diamond Systems Corporation Hercules II EBX User Manual Page 58 BIOS Bios Settings Hercules II EBX uses a BIOS from Phoenix Technologies modified to support the custom board features which are described below
36. ready to perform A D conversions Diamond Systems Corporation Hercules II EBX User Manual Page 95 Perform an A D Conversion on the Current Channel After the previous steps are completed start the A D conversion by writing to Base 15 bit 0 outp base 15 0x01 This write operation only triggers the A D if AINTE 0 interrupts are disabled When AINTE 1 the A D can only be triggered by the on board counter timer or an external signal This protects against accidental triggering by software during a long running interrupt based acquisition process Wait for the Conversion to Finish The A D converter chip takes up to either 4 or 9 microseconds to complete one A D conversion depending on the scan interval setting Base 12 bit 3 Most processors and software can operate fast enough so that if you try to read the A D converter immediately after starting the conversion you will beat the A D converter and get invalid data Therefore the A D converter provides a status signal ADBUSY to indicate whether it is busy or idle This bit can be read back as bit 7 in the A D Range Status Readback Register at Page 0 Base 4 When the A D converter is busy performing an A D conversion this bit is 1 and the program must wait When the A D converter is idle conversion is done and data is available this bit is 0 and the program may read the data Here are examples while inp base 4 amp 0x80 Wait for conversion to fini
37. with all other ports set to input outp base 22 0x98 Selects Bit Mode bit 7 1 Port B bits 6 4 001 bit 4 bits 3 1 100 value 0 bit 0 0 outp base 22 0x02 Selects DIO direction Mode bit 7 0 and Port B is output Ports A C D E are inputs Byte Mode Operation For byte mode operation the data for a given byte is read or written to the appropriate DIO byte register DIO ports A E are located at Base 16 to Base 20 respectively For example the following code segment illustrates setting port A to output with B E as input writing a value of OxAA to port A and reading data from port C outp base 22 0x01 Selects DIO direction Mode bit 7 0 and Port A is output Ports B C D E are inputs Diamond Systems Corporation Hercules II EBX User Manual Page 108 outp base 16 OxAA data inp base 18 LE Send data to DIO output port A Read data from port C Special Digital I O Operation Port E In addition to the standard Digital I O operation detailed above port E may alternatively be configured for some special I O functions allowing access to several special purpose Digital I O controls These special functions are controlled with the DIOCTRO and DIOCTR1 bits Bit DIOCTRO controls the special functions for DIO E3 E0 J8 Pin DIOCTRO Number 0 1 33 DIO EO PWMO 34 DIO El PWMI1 35 DIO E2 PWM2 36 DIO E3 PWM3 See the section on PWM func
38. 0 is 24 bits wide and uses all three of the following registers Counter timer 1 is 16 bits wide and uses only registers 24 and 25 The bytes may be written and read in any order Counter Timer Data Byte 1 Base 24 Read Write Bit 7 6 5 4 3 2 1 0 Name CTRD7 0 CTRD7 0 LSB for counter timers 0 and 1 Counter Timer Data Byte 2 Base 25 Read Write Bit 7 6 5 4 3 2 1 0 Name CTRD15 8 CTRD15 8 CSB middle byte for counter timer 0 MSB for counter timer 1 Counter Timer Data Byte 3 Base 26 Read Write Bit 7 6 5 4 3 2 1 0 Name CTRD23 16 CTRD23 16 MSB for counter timer 0 Counter Timer Control Base 27 Write Bit 7 6 5 4 3 2 1 0 Name CTR LATCH GTDIS GTEN CTDIS CTEN LOAD CLEAR CTR Counter number 0 or 1 LATCDH Latch selected counter s current data into bytes 1 3 or 1 2 as appropriate GTDIS Disable gating on selected counter GTEN Enable gating on selected counter CTDIS Disable counting on selected counter CTEN Enable counting on selected counter LOAD Load selected counter with data in bytes 1 3 or 1 2 as appropriate CLEAR Clear selected counter to zero Diamond Systems Corporation Hercules II EBX User Manual Page 83 Watchdog Timer A LSB Data Base 28 Read Write
39. 00 select page 0 re enables lock on EEPROM TrimDAC Writing Value to EEPROM Example Write the byte value Ux A A to EEPROM location 254 then verify the data outp base 0 0x01 set page to page 1 outp base 15 OxA5 unlock EEPROM outp baset 29 0xFE set address location to 254 0xFE outp base 28 OxAA Set data to write to EEPROM Diamond Systems Corporation Hercules II EBX User Manual Page 107 outp base 30 0x80 Initiate transfer set to write while inp base 30 0x20 Wait for EEPROM write to complete outp base 15 OxA5 unlock EEPROM outp base 29 0xFE set address location to 254 OxFE outp base 30 0xC0 Initiate transfer set to read while inp base 30 0x20 Wait for EEPROM load to complete Data inpb base 28 data returned from EEPROM access data should be OxAA outp base 0 0x00 select page 0 re enables lock on EEPROM TrimDAC Digital I O Operation Hercules II EBX contains 40 digital I O lines organized as four 8 bit I O ports A B C D and E The direction for each port is independently programmable The ports are accessed at registers Base 16 through Base 20 respectively and the direction register is at Base 22 Port and direction registers are located at Page 0 The digital I O lines are located at pins 1 through 40 on connector J8
40. 15 c3 c3 d C3T 4227 422 0000000 ojo ojo co 0 CAT 4227 C4 22 BAT J4 OO o ATX Q QL 2 c4 lo o c3 3 le o 4 c3 lo o AD AD lo o 5 de ATX INT COM COM4 RS485 Termination 120 Ohm on board 15 RS 422 Termination and Selection When RS 422 is selected jumper J4 pin 422T to terminate the RS 422 line Normally RS 232 RS 485 is selected in the BIOS However to override the BIOS setting jumper J4 pin C3 422 to select RS 422 for COM3 and jumper C4 422 to select RS 422 for COM4 as shown in Figure 33 Diamond Systems Corporation Hercules II EBX User Manual Page 49 Figure 33 COM3 and COM4 RS422 Termination Jumpers C3 gt E om a AG af 2 w 3 cat 4227 422 2 O oooooooooo o ojo o SC 5 COM3 RS422 Termination ABRA MAA AA ot Om CAT 4227 o E Y PM 499 T E x CH A WEE WEE C3T 422T 422 3 O 0000000000000 oi 3 5 COM4 RS422 Termination 900000000 06 ojo o te ogangan Gr en a amp 422 Jumper Block J5 Jumper block J5 is used to configure DIO pull ups pull downs DIO control signal pull ups pull downs CompactFlash mode flash write protect for boot sector and COM3 4 address selection Figure 34 Jumper Block J5 Default Settings DIO Data Lines COM3 0x3E8 pull up L COMA 0x2E8 pull down H CompactFlash Master No BIOS Write Protect J5 CONFIG DIO Data Pulled Up fe oleae o fe oleae DIO Control Pulled Up oo o_O el gt d A CFFW L DIO H COM PORT DIO LINES Address Sect
41. 2V power supply input is intended for all on board and board controlled 12V power supplies including the PC 104 Plus 12V supplies the external hard drive power supply through connector J15 described above and the LCD backlight If these devices are not used the 12V input may be left unconnected Since the PC 104 bus includes pins for 5V and 12V these voltages may be supplied through connector J29 if needed and left unconnected if not needed The 5V and 12V voltages are controlled by the ATX power manager switches while 5V and 12V are routed directly to the corresponding pins on the PC 104 bus and are not controlled by the ATX function Make certain that your power supply has enough current capacity to drive your system The Hercules II EBX requires 12 to 20 Watts or more depending on which external devices are connected to the board This could require over 4A on the Vin line at minimum voltage inputs In particular many disk drives need extra current during startup If your system fails to boot properly or if disk accesses do not work correctly the first thing to check 1s the power supply voltage level at connector J29 Many boot up problems are caused simply by insufficient voltage due to excess current draw on the Vin supply during initialization Multiple 5V and ground pins are provided for extra current carrying capacity if needed Each pin is rated at 3A max 15W For the Hercules II EBX CPU with a moder
42. 5 DIOB4 DIOB3 DIOB2 DIOB1 DIOBO 18 DIOC7 DIOC6 DIOCS DIOC4 DIOC3 DIOC2 DIOC1 DIOCO 19 DIOD7 DIOD6 DIODS DIOD4 DIOD3 DIOD2 DIODI DIODO 20 DIOE7 DIOE6 DIOES DIOE4 DIOE3 DIOE2 DIOE1 DIOEO 21 22 2 DIRE DIRD DIRC DIRB DIRA 23 f 24 CTRD7 CTRD6 CTRDS CTRD4 CTRD3 CTRD2 CTRDI CTRDO 25 CTRDI5 CTRDI4 CTRDI3 CTRD12 CTRDI1 CTRDIO CTRD9 CTRD8 26 CTRD23 CTRD22 CTRD21 CTRD20 CTRDI9 CTRD18 CTRDI7 CTRDI6 27 f 28 WDA7 WDA6 WDA5 WDA4 WDA3 WDA2 WDA1 WDAO 29 WDA1I5 WDAI4 WDAI13 WDAI2 WDAll WDAIO WDA9 WDAS 30 WDB7 WDB6 WDBS5 WDB4 WDB3 WDB2 WDR WDBO 31 Page 1 Write Offsets base 28 29 and 31 refer to EEPROM Data address and unlock command registers for auto calibration Base 7 6 5 4 3 2 1 0 0 HOLDOFF RESET gt BAGRI PAGEO 24 25 l S 26 27 28 D7 D6 D5 D4 D3 D2 DI DO 29 E A6 AS A4 A3 A2 Al A0 30 EE EN EERW RUNCAL CMUXEN TDACEN o 31 Diamond Systems Corporation Hercules II EBX User Manual Page 72 Page I Read Offset base 31 is the FPGA revision code 0x40 Base 7 6 5 4 3 2 1 0 0 e a 8 24 PWMD7
43. 55 e e EE 55 Diamond Systems Corporation Hercules TI EBX User Manual Page 2 COM Port FPGA Control Registers icc scc sectecceccececenseesccuecennedeeneseteeeeuecbeseeneeperesced 55 Console Redirection to a Serial Port 56 Watchdog Time nsec e o 57 Failsafe Mode and BIOS Recovery eee 57 Hash MEMON o ee REESEN 58 Backup Battery ct md ts et gay al 58 SA EE 58 EE MIO a ME ed 58 BIOS nuda aaa OR anderen a od 59 Bios SettihgS tai tl nto 59 BIOS Download Crisis Recovery sse tdo rod 60 BIOS COM Port Tle EE 61 BIOS Console Redirection Settings eee eee eee 62 System e iaa 63 CNIS Esai ee 63 Serial POS naaa aaa eG duet Ceuta aed settee teehee einen E 63 PS 2 e 64 USB POR Sato prada cuenta ded aoe eu EN 65 Notes on Operating Systems and Booting Procedures ek 66 Windows Operating System Installation ISSUES sse eee eee eee eee eee eee eee DD DOS Operating Systems Installation Lesues eee eee 67 CompactFlash Compatibility Issues Under DOS 67 Data ACQUISITION Circula ii cai a dek eEN 68 Data Acquisition Circuitry WO Maicao ses 69 UO Register Map Bit ASSIgnMents oooooococonrooconnnconacoconennrnnnonnnsacann drena 70 V O Register Demons siii Ad 73 Data Acquisition Circuit Configuration KEEN EEN 93 Single ended Differential Inputs eee eee eee 93 Unipolar Bipolar Inputs sss 93 Analog Output Re tere EE 93 Analog to Digital Input Ranges and Resolution eessssssseeeeeeeessssseeeee eee ssssseeere eree 94 EIERE dE 94
44. 96 10V 2 44mV The following table illustrates the relationship between D A code and output voltage for a unipolar output range VREF Reference voltage D A Code Output Voltage Symbolic Formula Output Voltage for 0 10V Range 0 OV 0 0000V 1 1 LSB Vrer 4096 0 0024V 2047 Vrer 2 1 LSB 4 9976V 2048 Var 2 5 0000V 2049 Veer 2 1 LSB 5 0024V 4095 Vrer 1 LSB 9 9976V D A Conversion Formulas for Bipolar Output Ranges Output voltage D A code 2048 2048 Output reference D A code Output voltage Output reference 2048 2048 Example For Output range in bipolar mode 10V and Diamond Systems Corporation Hercules II EBX User Manual Page 102 Full scale range 10V 10V 20V Desired output voltage 2 000V D A code 2V 10V 2048 2048 2457 6 gt 2458 For the bipolar output range 10V 1 LSB 1 4096 20V or 4 88mV The following table illustrates the relationship between D A code and output voltage for a bipolar output range VREF Reference voltage D A Code Output Voltage Symbolic Formula Output Voltage for EI0V Range 0 VREF 10 0000V 1 Vrer 1 LSB 9 9951V 2047 1 LSB 0 0049V 2048 0 0 0000V 2049 1 LSB 0 0049V 4095 Veer LSB 9 9951V Generating an Analog Output There are three steps involved in performing a D A conversion or generating an analog output Each step is
45. ACK by sending newdata and ER All DIO signals have some basic ESD and over under voltage protection In addition all signals can be configured with pull up or pull down resistors to set a given I O voltage when no input signal is provided This pull up pull down setting should always be made for the following two reasons 1 To prevent floating inputs latch up from floating input where CMOS I O pins are involved 2 To set a known voltage level for inputs that are not driven This is particularly useful for signals such as DIOLATCH and EXTTRIG for example where a floating input could cause erratic or erroneous results when the latch counter edge trigger occurs randomly To set DIO signal pull ups or pull downs a jumper must be added across signals on connector J5 as shown in the table DIO Signal range Pull up Pull down Notes A7 0 B7 0 C7 0 D7 0 E3 0 1 3 3 5 PWM outputs are included E7 4 GATEO TOUTI GATE1 DIOLATCH 2 4 ge OOS DIO AR and UATE Tor both counters Notes 1 Pull up means that a weak 47kOhm pull up resistor will be connected between the DIO signal and 3 3V This sets the DIO signal to a 1 value when there is no external source driving the signal 2 Pull down means that a weak 47kOhm pull down resistor will be connected between the DIO signal and ground This sets the DIO signal to a 0 value when there is no external source driving
46. API Vendor Support Driver c Enable DMA Mode d Install the VIA AGP VXD in Turbo Mode e Install the VIA IRQ Routing Miniport Driver Install the VIA S3 Video driver following the installation instructions Install the VIA Sound driver Ensure that the sound driver is ComboAudio v3 90 or later Install the National Semiconductors Network driver Load the USB driver for the floppy drive This driver must be loaded for the USB floppy drive to function under Windows Legacy support provides floppy access for DOS boot BIOS Setting for Windows When using any version of Windows the Operating System selection in the BIOS setup menus should be set to Win98 Also Legacy Audio must be disabled for Windows to boot properly Diamond Systems Corporation Hercules II EBX User Manual Page 66 CompactFlash Under Windows CompactFlash is not directly supported by Windows 98 A special driver may be available see the vendor of your specific CompactFlash card for details Without special drivers Windows 98 does not recognize the CompactFlash CompactFlash support is built into Windows 2000 and XP DOS Operating Systems Installation Issues User the following sequence to install DOS operating systems MS DOS FreeDOS and ROM DOS 1 Enable the following in BIOS e Floppy Drive detection e Legacy USB support 2 Change the BIOS boot sequence so the system boots through the USB floppy drive 3 Insert the DOS installation flopp
47. BX are at different voltages or when a low level signal is measured that has its own ground wire A differential input also has higher noise immunity than a single ended input since most noise affects both and input wires equally cancelling out in the noise in the measurement The disadvantage of differential inputs is that only half as many are available since two input pins are required to produce a single differential input Hercules II EBX can be configured for either 32 single ended inputs or 16 differential inputs If you have a combination of single ended and differential input signals select differential mode Then to measure the single ended signals connect the signal to the input and connect analog ground to the input The maximum measurable rail voltage is 10V for differential inputs Any voltage outside of this range is measured as at the maximum rail As an example if VINO 15V and VINO 10V the differential voltage is measured as OV since both voltages are outside of the maximum measurable range WARNING The maximum range of voltages that can be applied to an analog input on Hercules II EBX without damage is 35V If you connect the analog inputs to a circuit whose ground potential plus maximum signal voltage exceeds 35V the analog input circuit may be damaged Check the ground difference between the input source and the Hercules II EBX board before connecting analog input signals Unipolar Bipolar Inpu
48. Chip ID LSB Base 28 Read Bit 7 6 5 3 0 Name ID7 0 ID7 0 See Chip ID MSB Base 29 below Chip ID MSB Base 29 Read Bit 7 6 5 3 0 Name ID15 ID14 8 ID15 Prototype released board indicator 0 Prototype unreleased version 1 Released design ID14 8 Together with Chip ID LSB Base 28 indicates the unique chip ID according to a TBD format Each revision of the chip contains a unique 16 bit ID to enable software to distinguish between different board versions The current chip ID should be 0x8000 or higher Diamond Systems Corporation Hercules II EBX User Manual Page 91 Page 3 Register Definitions Page Select and Reset Command Base 0 Write Bit 7 6 Name HOLDOFF RESET PAGE HOLDOFF When this bit is set the chip ignores any data written to this register This bit enables shadowing this RESET PAGE register with another device at the same address Reset the entire data acquisition circuit After a reset the following conditions are true e Digital I O ports are set to input mode and all output registers are cleared to 0 e A D channel registers and range settings are cleared to zero except for the Analog Configuration Register Base 1 which is set to 0x04 e D A channels are cleared to mid scale or zero scale depending on the board jumper setting e Counter timers are disabled and counter registers are cleared to zero e Watchdog timer is disa
49. Connector J20 is used to connect an external battery The battery voltage for this input should be 3 3 5V The current draw averages under 4uA at 3V Figure 17 J20 Connector ee 1 Battery input 2 Ground In addition to the external battery connected to J20 the on board battery and an additional external battery input on Utility Connector J7 are other possible sources for maintaining the Real Time Clock and the CMOS settings BIOS settings for various system configurations The battery that has the highest voltage will see the majority of the current draw which is minimal Note that there must be a battery voltage input for the default power up mode Diamond Systems Corporation Hercules II EBX User Manual Page 34 USB 1 1 Connectors Connectors J21 and J22 are used to connect USB 2 3 and USB 0 1 respectively and support USB 1 1 with 10Mbps maximum data transfer rates Figure 18 J21 and J22 Connectors PIN 1 Key pin cut 1 2 Shield USB1 3 power 3 4 USBO0 2 power USB1 3 data 5 6 USBO 2 data USB1 3 data 7 8 USBO 2 data USB1 3 power 9 10 USBO 2 power Signal Definition Shield USBO0 2 power ground USBO0 2 data data USBO0 2 data data USB0 2 power 5V USB1 3 power ground USB1 3 data data USB1 3 data data USB1 3power 5V Connectors J21 and J22 mate with Diamond Systems Corporation cable no 698012 which pro
50. D7 D7 IRQ14 SDO A9 B9 12V LA17 D8 D8 DACKO IOCHRDY A10 B10 keyed MEMR D9 D9 DRQO AEN A11 B11 SMEMW MEMW D10 D10 DACK5 SA19 A12 B12 SMEMR SD8 D11 D11 DRQ5 SA18 A13 B13 IOW SD9 D12 D12 DACK6 SA17 A14 B14 IOR SD10 D13 D13 DRQ6 SA16 A15 B15 DACK3 SD11 D14 D14 DACK7 SA5 A16 B16 DRQ3 SD12 D15 D15 DRQ7 SA14 A17 B17 DACK1 SD13 D16 D16 5 SA13 A18 B18 DRQ1 SD14 D17 D17 MASTER SA12 A19 B19 REFRESH SD15 D18 D18 GND SA11 A20 B20 SYSCLK keyed D19 D19 GND SA10 A21 B21 IRQ7 SA9 A22 B22 IRQ6 SA8 A23 B23 IRQ5 SA7 A24 B24 IRQ4 SA6 A25 B25 IRQ3 SA5 A26 B26 DACK2 SA4 A27 B27 TC SA3 A28 B28 BALE SA2 A29 B29 5V SA1 A30 B30 OSC SAO A31 B31 GND GND A32 B32 GND Diamond Systems Corporation Hercules II EBX User Manual Page 17 PC 104 Plus PCI Bus The PC 104 Plus bus is essentially identical to the PCI Bus except for the physical design A single pin and socket connector is specified for the bus signals A 120 pin header J3 arranged as four 30 pin rows incorporates a full 32 bit 33MHz PCI Bus The additional pins on the PC 104 Plus connectors are used as ground or key pins The female sockets on the top of the board enable stacking another PC 104 Plus board on top of the Hercules II EBX board The Hercules II EBX board sh
51. DIAMOND SYSTEMS COR P O R A T I Hercules Il EBX EBX SBC with 800MHz VIA Eden CPU Integrated Autocalibrating Data Acquisition and DC DC Power Supply User Manual V1 04 O Copyright 2010 1255 Terra Bella Ave Mountain View CA 94043 Tel 650 810 2500 Fax 650 810 2525 www diamondsystems com Table of Contents VERO e EE 8 RI ele ee RE 8 Block Did lun DEE 10 Functional OVA O A AO EP 11 B ard Description eci di leita 14 Connector Summary aspel 15 HEURE 16 ERD 17 PCI 104 ISA BUS oO iio 17 RONDA Plus TER eege eet Eeer 18 Utility elei EE 20 Data Acquisition Digital 1 0 Connechor 22 Data Acquisition Analog UO Connechor eee eee eee 24 Ethernet ele ne E 25 Audio ee EE 26 Speaker CONNOR O NA 27 CD INPuECONNES Olinda eta 28 External Auxiliary Power Connector Output 28 Primary IDE eent 29 Secondary IDE Connector ind ocn asii inene 30 Serial Por Lee Tel erte 31 External Battery COnme Clo Fisicos li cd de a et 34 USB T CONE eel 35 USB1CONNECIO tati tata 36 LCD Panel LVDS Interface Connector eee eee 37 YESA CONNOR TT 38 Video Re le EE 39 CPU Fan CON 40 LED Backlight Connector zagt riera 40 Low Voltage Power Input Connector eee eee eee 41 High Voltage Power Input Connector Cptonalt 43 CompactFlash Slot optional EE 43 Board Re tte UI E 45 J mper Block CEET 45 luet lole 9 EE 50 Jumper Block J19 PCI VIO Voltage Gelechon nos 53 Jumper 35 Crisis Recovery 54 System 91T ii esses id
52. Data 2 0 Primary Data Channel bits 2 0 LVDS Differential signaling Y Clock Primary Data Channel Clock LVDS Differential signaling Z Data 2 0 Secondary Data Channel bits 2 0 LVDS Differential signaling Z Clock Secondary Data Channel Clock LVDS Differential signaling ERR LCD display is active 3 3V Switched Power Supply for LCD display only powered up when Ground Power Ground 0V Diamond Systems Corporation Hercules II EBX User Manual Page 37 VGA Connector Connector J25 provides a connection for VGA monitors Figure 20 J25 Connector Dt Red 1 2 R ground Green 3 4 G ground Blue 5 6 B ground HSYNCH 7 8 DDC data VSYNCH 9 10 DDC clock Signal Definition RED RED signal positive 0 7Vpp into 75 Ohm load R Ground Ground return for RED signal GREEN GREEN signal positive 0 7Vpp into 75 Ohm load G Ground Ground return for GREEN signal BLUE BLUE signal positive 0 7Vpp into 75 Ohm load B Ground Ground return for BLUE signal DDC CLOCK DATA Digital serial I O signals used for monitor detection DDC1 specification Diamond Systems Corporation Cable Assembly 698024 provides a female DB15 connection to interface with a standard RGB monitor Note While the DDC serial detection pins are present a 5V power supply is not provided the old Monitor ID pins are also not used Diamond
53. E2 DIOE1 DIOEO 21 22 MODE P2 Pl PO DIRE B2 DIRD B1 DIRC BO DIRB D DIRA 23 24 CTRD7 CTRD6 CTRD5 CTRD4 CTRD3 CTRD2 CTRDI CTRDO 25 CTRD15 CTRDI4 CTRDI3 CTRD12 CTRD11 CTRDIO CTRD9 CTRD8 26 CTRD23 CTRD22 CTRD21 CTRD20 CTRD19 CTRDI8 CTRDI7 CTRD16 27 CTR LATCH CTDIS GTEN CTDIS CTEN LOAD CLR 28 WDA7 WDA6 WDAS WDA4 WDA3 WDA2 WDA1 WDAO 29 WDAIS5 WDAI4 WDA13 WDAI2 WDA11 WDAIO WDA9 WDA8 30 WDB7 WDB6 WDB5 WDB4 WDB3 WDB2 WDR WDBO 31 WDTRIG a WDEN WDSMI WDRST WDT 1 WDEDGE WDIEN Diamond Systems Corporation Hercules II EBX User Manual Page 71 Page 0 Read Base 7 6 5 4 3 2 1 0 0 AD7 AD6 ADS AD4 AD3 AD2 ADI ADO 1 ADIS AD14 AD13 AD12 ADI AD10 AD9 ADS 2 S S L4 L3 L2 L1 LO 3 E E H4 H3 H2 H1 HO 4 ADBUSY WAIT DABUSY DABU SEDIFF ADBU Gl GO 5 e ES Se e S 6 7 e a Se e e 8 ET7 FT6 ETS FT4 FT3 FT2 FTI FTO 9 lt S z FT11 FT10 FT9 FT8 10 FD7 FD6 FD5 FD4 FD3 FD2 FD1 EDO 11 E Z z FD12 FD11 FD10 FD9 FD8 12 LED SINGLE DIOCTRI DIOCTRO SCINT CLKSRC1 CLKFRQ1 CLQFRQO 13 x TINTE DINTE AINTE FIFOEN SCANEN CLKSEL CLKEN 14 o TINT DINT AINT OVF FF TF EF 15 CFG1 CFGO E ADCH4 ADCH3 ADCH2 ADCHI ADCHO 16 DIOA7 DIOA6 DIOAS DIOA4 DIOA3 DIOA2 DIOA DIOAO 17 DIOB7 DIOB6 DIOB
54. EBX User Manual Page 87 EEPROM TrimDAC Data Base 28 Read Write Bit 7 6 5 4 3 2 1 0 Name D7 0 D7 0 Calibration data to be read or written to the EEPROM and or TrimDAC During EEPROM or TrimDAC write operations the data written to this register is written to the selected device During EEPROM read operations this register contains the data read from the EEPROM which is valid only after EEBUSY 0 The EEPROM data can be read and written The TrimDAC data can only be written EEPROM TrimDAC Address Base 29 Read Write Bit 7 6 5 4 3 2 1 0 Name A7 0 A7 0 EEPROM TrimDAC address The EEPROM recognizes address 0 255 using address bits A7 AO The TrimDAC recognizes addresses 0 7 using bits A2 AO In each case unused address bits are ignored Current implementations of FPGA Data Acquisition storage only use the lower 128 bytes of EEPROM data addresses 0 127 The remaining 128 bytes addresses 128 255 are available for general use Calibration Control Base 30 Write Bit 7 6 5 4 3 Name EE EN EE RW RUNCAL CMUXEN TDACEN EE EN EEPROM Enable Setting this bit initiates a transfer to from the EEPROM the direction is indicated by the EE RW bit However if TDACEN is set simultaneously EE_EN is ignored EE RW Selects read or write operation for the EEPROM 0 Write 1 Read RUNCAL Setting t
55. Input UnL Ce D 94 Input Range Table nt AA angie A 94 Performing an A D Conversion sss 95 Select the Input CHAMME EE 95 Select Ne INPUL Range vit O eee 95 Wait for Analog Input Circuit to Gettle sese eee 95 Perform an A D Conversion on the Current Channel 96 Wait for the Conversion TO DEE 96 Read the Data from the Board 96 Diamond Systems Corporation Hercules II EBX User Manual Page 3 Convert the numerical data to a meaningful value sese eee eee 97 A D Scan Interrupt and FIFO Operation 98 Hercules Il A D Operating Modes sees 99 Digital to Analog Output Ranges and ResolUtiON oooooocccccconnnnnnnanancccnonononnnnnnanancnnnns 101 Description ee ee Eer 101 Resolution o e 101 Output Range Selection siria pa oca 101 D A Conversion Formulas and Tables eee esse 101 Generating an Analog Output 22 c ccccccceesesscencceteeeeneeseneseccneeseneeeesenedenneneneceees 103 Analog Circuit Calibration RESOUrCES cccceeeeseeeeseeeneceeeeeeeteeeeeeeeneeeeeenees 105 Analog Circuit Calibration Procedures sees esse 106 Using EEPROM a a e de a 107 Reading Value from EEPRON uta ios 107 Writing Value to E EE 107 Digital O Operation EE 108 Special Digital UO Operation Port E 109 DIO Handshaking Operation 228 aca ta 109 DIO Pulkup DOWA SQUINGS egene gd 110 Counter Timer Operation eege 112 Counter 0 A D Sample Control 112 Counter 1 Counting TotaliZing FUNCTIONS cee cette eee eeeeeeeeeee
56. M configuration byte PWMO0 1 2 Program PWM output 2 CLK 0 Use the 10MHz reference clock POL 1 Active state high PWM will be high for the 25 duty cycle OUTEN 1 Enable PWM output ENAB 1 Enable PWM circuit From the above settings we get a configuration byte value of 0xA7 outp base 0 1 Set page 1 for PWM functions outp base 27 OxA7 Configure and enable PWM output 2 Diamond Systems Corporation Hercules II EBX User Manual Page 117 5 To enable PWM outputs replacing Digital I O Port E bit3 0 set DIOCTRO to one leaving the rest of the Configuration Register as is Data inp base 12 Read current Configuration Register settings Data Data 0x10 Set DIOCTRO 1 forcing PWM3 0 onto DIO outp base 12 Data Write settings back to Configuration Register A 1KHz signal with a 25 high duty cycle should be present on PWM output 2 connector J8 pin 35 Diamond Systems Corporation Hercules II EBX User Manual Page 118 Watchdog Timer Programming Example Watchdog Timer With Software Trigger A software trigger relies on a thread of execution to constantly trigger watchdog timer A If the thread is ever halted timer A decrements to zero and starts timer B Once timer B decrements to 0 the board resets In this example we set the watchdog timer to a countdown period of four seconds Longer timeout periods are typically used for a software based watchdog t
57. OM 2 has the following options ISA I O Address 0x2F8 default 0x3F8 0x3E8 or 0x2E8 ISA IRQ IRQ3 default or IRQ4 e Mode Normal default IrDA ASK_IR Note The two IR modes require an external IR transceiver connected to the two IR I O pins located on connector J7 COM PORTS 3 amp 4 are handled by an external XR16C2850 UART The I O addresses are not configurable in software Instead they are determined by the J5 jumper settings Add or remove a jumper from header location A to change COM 3 address or location B to change COM 4 address The BIOS detects these I O settings and configures the COM3 and COM4 I O addresses accordingly The IRQ s for the two COM parts are manually selectable using the J4 jumpers These settings must still be entered manually into the BIOS to correctly configured the IRQs and to be reported to the operating system The settings for the RS 232 and RS 485 modes of operation for COM3 4 are software selectable in the BIOS Diamond Systems Corporation Hercules II EBX User Manual Page 61 COM PORT ISA VO address ISA IRQ Mode COM3 0x3E8 Jumper J5 pin A NOT jumpered IRQ3 RS 232 default 0x2F0 Jumper J5 pin A jumpered IRQ4 RS 485 IRQ9 COM4 0x2E8 Jumper J5 pin B NOT jumpered IRQ3 RS 232 default 0c3F0 Jumper J5 pin B jumpered IRQ7 RS 485 IRQ15 Note Jumper J5 pins C3 422 and C4 422 may be used to select RS422 overriding the BIOS settings
58. PC internal power cable Figure 45 FlashDisk Programmer Board Layout FlashDisk Programmer J1 To CPJ JT INF Connector 42 Hashbiak hog lo J3 To IDE Includes Powar 44 To IDE Naads Powar ASSY NO 241201 REY 5 a 8 Y 2 o 2 5 S G Diamond Systems Corporation Hercules II EBX User Manual Page 124 I O Cables For custom installations as well as development Diamond Systems Corporation offers a cable kit no lt DSC C HRCEBX KIT gt with 18 types of cables to connect to all I O headers on the board Some cables are also available separately Note When the multi I O cable DSC C DB9M 4 or any other cable is connected to serial ports 1 2 3 or 4 the serial port signals must terminate to another board or interference problems may occur that will slow down the performance of your CPU The following table lists Cable Kit DSC C HRCEBX KIT and references the cable photographs in Figure 46 Photo No Cable No Description 1 C PRZ 02 OPTIONAL 6 wire Ethernet cable with panel mount RJ 45 connector 2 698022 PS 2 Connector for Mouse and Keyboard with PS 2 mini DIN connectors 3 698025 Audio I O Cable for line level and microphone audio 4 698017 TV out cable S Video mini DIN and Composite RCA jack output NTSC only 5 698018 Amplified audio output Speaker out with volume control signals with stripped tinned leads 6 698024 VGA Ribbo
59. RS 485 only e COM can be configured to use IRQ7 Hercules II is RoHS compliant An image of the first generation Hercules board is shown below Note the significant areas of change for the second generation product Figure 47 Differences Between Hercules and Hercules II Boards Memory Increased Disk on Chip Removed Processor and North Bridge Integrated as One Device Diamond Systems Corporation Hercules II EBX User Manual Page 132 Technical Support For technical support please email support diamondsystems com or contact Diamond Systems Corporation technical support at 1 650 810 2500 Diamond Systems Corporation Hercules II EBX User Manual Page 133
60. S EXPANSION NEC uPD720101F1 EAS A 4 USB 2 0 PORTS DP33815 ETHERNET MAGNETICS 100MBPS ETHERNET CONTROLLER PCH04 PCI BUS EXPANSION Diamond Systems Corporation Hercules II EBX User Manual Page 10 Functional Overview This section describes the major Hercules II EBX subsystems Processor and North Bridge Hercules II EBX uses the Via Mark Corefusion Processor operating at a frequency of 800MHz The North Bridge is integrated in the Via Mark providing single chip CPU memory controller and video LCD graphics features Hercules II EBX operates with a passive heatsink at the 85 C maximum operating temperature South Bridge The South Bridge chip is the Via VT82C686B This chip provides standard peripherals of e two serial ports e four USB 1 1 ports e PS 2 keyboard mouse The South Bridge chip also generates the ISA bus for use on and off the board Memory The board accommodates either 265MB or 512MB of SDRAM system memory depending on configuration soldered on the board No expansion connector is provided for additional memory The board also includes flash memory for storage of BIOS and user programs Flash memory is accessible via the on board ISA bus Video Features The video circuit consists of a Savage 4 2D 3D video accelerator with internal 128 bit 2D and 3D architecture integrated into the North Bridge chip It shares up to a 32MB buffer Unified Memory Architecture with system memory so ded
61. Systems Corporation Hercules II EBX User Manual Page 38 Video TV Out Connector Connector J26 provides a video output for connection to a standard NTSC TV Either S Video 6 pin mini DIN or Composite RCA Jack can be used but not both Figure 21 J26 Connector sesse PIN 1 1 S video Y 2 S video C 3 Composite 4 Ground 5 NC Signal Definition S Video Y S Video Brightness Luminance S Video C S Video Color Chrominance Composite Composite Video Ground Ground for either S Video or Composite NC Do not connect this signal For testing use only Notes e This feature requires software support to function and is not directly supported in the BIOS LCD S Video and Composite are mutually exclusive It is not possible to have more than one of these options active at the same time Diamond Systems Corporation Hercules II EBX User Manual Page 39 CPU Fan Connector Connector J27 is used to connect to the CPU fan Figure 22 J27 Connector PIN 1 eee 1 Fan RPM 2 Ground 3 5v Signal Definition Fan RPM TTL signal input that pulses with each revolution of the fan 5V Ground Power Supply for optional CPU Fan if necessary LCD Backlight Connector Connector J28 provides the backlight power and control for the optional LCD panel See the description for connector J24 above for details on the LCD data interface Figure 23
62. T 512MB FD 1G XT 1024MB FD 2G XT 2048MB FD 4G XT 4096MB Figure 43 Flashdisk Module Hp Sang e ww HHH D La be T ut k THREE Installing the FlashDisk Module The FlashDisk module installs directly on the IDE connector J16 and is held down with a spacer and two screws onto a mounting hole on the board The FlashDisk module contains a jumper for master slave configuration For master mode install the jumper over pins and 2 For slave mode install the jumper over pins 2 and 3 By default the BIOS autodetects the FlashDisk on the IDE The FlashDisk must be in master mode Using the FlashDisk with Another IDE Drive The FlashDisk occupies the board s 44 pin IDE connector and does not provide a pass through connector To utilize both the FlashDisk and a notebook drive the Diamond Systems Corporation ACC IDEEXT adapter and cables are required To use the FlashDisk and a 40 pin IDE drive such as a CD ROM or 5 25 hard drive both devices may be used simultaneously since the 40 pin device uses a different I O connector on the Hercules H EBX board Diamond Systems Corporation Hercules II EBX User Manual Page 121 Power Supply The 44 pin cable carries power from the CPU to the adapter and powers the FlashDisk module and any drive using a 44 pin connector such as a notebook hard drive A drive utilizing a 40 pin connector such as a CD ROM or full size drive requires an external power source t
63. The lines are 3 3V and 5V logic compatible Each output is capable of supplying 8mA in logic 1 state and 12mA in logic 0 state Register Base 22 bits DIRA DIRB DIRC DIRD and DIRE control the direction of ports A B C D and E respectively A zero indicates output and a one indicates input All ports power up to input mode and the output registers are cleared to zero When a port direction is changed to output mode its output register is cleared to zero When a port is in output mode its value can be read There are two methods of programming the Digital I O ports e AS individual bits useful for output only As bytes for either input or output Accessing a digital output port can be handled as bit or byte level accesses interchangeably The two methods are provided to allow maximum flexibility for output operations Bit Mode Operation To program a specific output bit bit mode operation can be used This mode is selected by writing a one to the MODE bit of the register Base 22 Digital I O Configuration Bit Programming located When setting bit mode bits 6 4 select the DIO port A E values 0 4 bits 3 1 select the bit within the port bit selection 0 7 and bit 0 selects the value for the bit in question In bit mode an individual output bit for one of the 40 available DIO bits can be individually assigned a value For example the following code segment sets bit 4 of DIO port B to zero and sets DIO port B to an output
64. UTI Counter Timer 1 output DIOLATCH Handshaking line used with ACK signal below for automated digital data transfers Ext Trig External A D trigger input External Counter Timer 1 input Tout 0 Counter Timer 1 output 5V Out Connected to switched 5V supply output only Do not connect to external supply Digital Ground Digital ground OV reference used for digital circuitry only WDO Watchdog Timer Output NOTE The watchdog timer circuit may be programmed directly or with Diamond Systems Universal Driver software WDI Watchdog Timer Input NOTE The watchdog timer circuit may be programmed directly or with Diamond Systems Universal Driver software ACK Handshaking line used with DIOLATCH signal for automated digital data transfers FXA FXB These lines should be left unconnected Data Acquisition Analog I O Connector Connector J9 is used for analog I O data acquisition Figure 8 J9 Connector El Single ended Differential Vout 01 1 2 Wout Vout 0 foes Vout 1 Vout2 3 4 Vout3 Vout 2 24 Vout 3 Output ground 5 6 Output ground Output ground 218 Output ground Vin0 7 8 Vin 16 Vin 0 Vin1t 9 10 Vin 17 Vin 1 Diamond Systems Corporation Hercules II EBX User Manual Page 24 Vin2 11 12 Vin3 13 14 Vin4 15 16 Vin5 17 18 Vin6 19 20 Vin7 21 22 Vin8 23 24 Vin9 25 26 Vin10 27 28 Vin11 29 30 Vin 12 31 32 Vin13 33 34 Vin14 35 36 Vin
65. a channel occurs whether or not the simultaneous update bit is set The data is transferred and the DABUSY signal is active regardless of whether or not the data is immediately updated or is latched in preparation for later simultaneous update The only difference in the two modes occurs after the digital data is transferred In transparent mode the data immediately passes through the D A whereas simultaneous update mode concludes with the D A output data unchanged Analog Circuit Calibration Resources For a board with the Data Acquisition option the Hercules II EBX data acquisition circuitry incorporates some advanced calibration features to allow the system to calibrate both the A D and D A signal conversion pathways The registers involved in controlling these calibration features are listed in the following table Register Bit Name Register Location Signal Name Description ADBU all pages Base 1 bit 0 ADCUNI OUT A one sets A D section to unipolar input mode DABU all pages Base 1 bit 2 DACUNI OUT A one sets D A section to bipolar output mode CMUXEN Page 0 Base 30 bit4 MUXEN4 OUT A one enables calibration voltages multiplexer SEDIFF all pages Base 1 bit 1 ADDIFF OUT A one sets A D section to differential mode TrimDAC data Page 1 Base 28 8 bit TrimDAC data D7 DO Data sent to TrimDAC TrimDAC address Page 1 Base 29 bits 2 0 TrimDAC address A2 A0 Address for TrimDAC TDACEN Page 1 B
66. actFlash Master Slave Selection Jumper 52 DIO Pull up Pull down Selection Jumpers 52 J mper BOCK 0 TEE 53 Diamond Systems Corporation Hercules II EBX User Manual Page 6 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 Figure 45 Figure 46 Figure 47 J19 Voltage elec siii tits 54 Watchdog Timer Block Dagoram sss eee eee eee 57 Data Acquisition Block Diagoram sese eee eee 68 DIOLATCH ACK Handshaking Geouence sse eee eee eee 110 Sale TG 30 leis 121 Utility BOTA ua a Ei dabei dada Godda ia 123 FlashDisk Programmer Board Layout 124 A A acoso 126 Differences Between Hercules and Hercules II BoardS 132 Diamond Systems Corporation Hercules II EBX User Manual Page 7 Introduction Hercules II is an embedded CPU board in an EBX form factor that integrates the following subsystems onto a single compact board CPU e Core PC Chipset including memory controller PCI interface and ISA interface e Video Sound Ethernet e Analog and digital I O Hercules II EBX conforms to the EBX standard with expansion support via PC 104 Plus an embedded standard that is based on the ISA and PCI buses and provides a compact rugged mechanical design for embedded systems PC 104 modules feature a pin and socket connection system in place of card edge connectors as well as mounting holes for stand offs in each corner The result is an extremely rugged computer system fit for mobile
67. al and can accept either power setting There are essentially 4 possibilities e Card keyed for 5V e Card keyed for 3 3V e Card not keyed universal can operate with either voltage setting e Card incorrectly keyed or not keyed but with certain requirements The first three possibilities can be easily determined by checking the keying of the card as shown in the following table Card Voltage Type Pin Configuration 5V card Pin Al missing pin D30 present 3 3V card Pin Al present pin D30 missing Universal card Pin Al present pin D30 present The only solution for cards that are incorrectly keyed is to read the documentation and verify the I O voltage if it is called out in the card description While not a widespread issue this is something to be aware of when starting to work with a new PC 104 Plus card Note that this voltage selection is not used for standard PC 104 cards only the PCI signaling of PC 104 Plus Diamond Systems Corporation Hercules II EBX User Manual Page 53 Figure 34 shows how to select the desired voltage using jumper J19 Set to 5V dE J19 PCI VIO Jumper 35 Crisis Recovery Figure 39 J19 Voltage Selection Set to 3 3V spea J19 PCI VIO 5 o o The BIOS can be forced to update by shorting the two crisis recovery pads located just below the J18 connector If the crisis recovery pins are shorted as the board powers up and enters self test the board immed
68. amond Systems Corporation Hercules II EBX User Manual Page 13 Board Description Board Layout Figure 2 shows the Hercules II EBX board layout including connectors jumper blocks and mounting holes Figure 2 Hercules If EBX Board Layout 3 O ier INOA ZS Mei aer S amp ver c 8 6 els C jooj dei PAE C ee JE H VIA Mark CoreFusion CPU E 8 North Bridge 8 Z G elt B ZIR lee ee ee S E z z AN ig TVNY31X3 ozr h Sea SEN sir Nora NI Oud OM ber Ohne Teel H X Co coco AY340934 POL AS South Bridge S1YOd WWIy3S Sree e 2 ATXINTICOM 5 sn CI Ayauya 960000000000000000000 60000000000000000000 301 AYVNWIYd SET HI ALMILA O SIANOO Sr eer 301 AYWONOIIS 60000000000000000000 e PCO aswiasy of J9 ANALOG VO 6666666666666666 0666 J10 60000000000000000000 AUDIO IN OUT 14 O 13INY3IH13 tir eur eeeeeeeeeeeeeeeeeeeeeeeee Diamond Systems Corporation Hercules II EBX User Manual Page 14 Connector Summary The following table lists the connectors on the Hercules II EBX board Connector Description Manufacturer Part No D PC 104 ISA bus A B EPT 962 60323 12 yn PC 104 ISA bus C D EPT 962 60203 12 J3 PC 104 Plus PCI bus connector J6 PS 2 Mouse and keyboard Digikey 640456
69. ansfer speed is limited as necessary Serial Port VO Connector Connector J18 is a 40 pin header that provides access to the four on board serial ports The PORT1 and PORT2 serial ports are always configured for RS 232 The PORT3 and PORT4 serial ports are software configurable as either RS 232 RS 485 or RS 422 All four serial ports are independently enabled The last two serial ports can be independently configured between the RS 232 RS 485 and RS 422 modes of operation Figure 16 J18 Connector El Port No Pin Assignment PORT Pins 1 10 PORT2 Pins 11 20 PORT3 Pins 21 30 PORT4 Pins 31 40 Diamond Systems Corporation Cable Assembly Number C DB9M 4 connects this header to four DE 9 Male connectors for direct connection to RS 232 C signaling The following tables list the signals for the appropriate mode of operation as well as the DE 9 pin numbers to which these signals are wired RS 232 Pin Assignment COM1 DCD1 1 2 DSR1 RXD1 3 4 RTS1 TXD1 5 6 CTS1 DTR1 7 8 RI GND 9 10 N C COM2 DCD2 11 12 DSR2 RXD2 13 14 RTS2 TXD2 15 16 CTS2 Diamond Systems Corporation Hercules II EBX User Manual Page 31 DTR2 GND COM3 DCD3 RXD3 TXD3 DTR3 GND COM4 DCD4 RXD4 TXD4 DTR4 GND Diamond Systems Corporation Hercules II EBX User Manual Page 32
70. ard Jumper Description J4 Serial port and A D IRQ settings ATX power control Erasing CMOS RAM RS 485 termination settings RS 422 termination and selection JS Serial port address setting CompactFlash IDE control Write protect BIOS flash DIO pull up pull down selections J19 PCI VTO voltage selection J35 Crisis recovery Diamond Systems Corporation Hercules II EBX User Manual Page 16 Connectors This section describes the connectors on the Hercules II EBX board Note All cables mentioned in this section are included in Diamond Systems Corporation cable kit C HRCEBX KIT Some cables are also available individually PC 104 ISA Bus Connectors J1 and J2 carry the ISA bus signals Figure 3 shows the PC 104 A and B pin layout for J1 and the C and D pin layout for J2 Figure 3 Jl and J2 Connectors Al A32 co C19 AAA B32 PRA D19 Ji Connector J2 Connector J1 Connector Pinout J2 Connector Pinout IOCHCHkK A1 B1 GND GND DO DO GND SD7 A2 B2 RESETDRV SBHE D1 D1 MEMCS16 SD6 A3 B3 5V LA23 D2 D2 lOCS16 SD5 A4 B4 IRQ9 LA22 D3 D3 IRQ10 SD4 A5 B5 5V LA21 D4 D4 IRQ11 SD3 A6 B6 DRQ2 LA20 D5 D5 IRQ12 SD2 A7 B7 12V LA19 D6 D6 IRQ15 SD1 A8 B8 ENDXFR LA18
71. ard device should function e Keyboard Mouse e USB Floppy Drive This is required for Crisis Recovery of boot ROM e USB flash disk The BIOS supports the USB keyboard during BIOS initialization screens and legacy emulation for DOS based applications The USB ports can be used for keyboard and mouse at the same time that the PS 2 keyboard and mouse are connected Diamond Systems Corporation Hercules II EBX User Manual Page 65 Notes on Operating Systems and Booting Procedures Windows Operating System Installation Issues Installation of Windows operating systems Win98 2000 XP should follow the sequence described below Otherwise some device drivers might not function correctly under Windows 1 Enable CD ROM support in the BIOS Change the boot sequence in the BIOS so the system boots from CD ROM first 2 Insert the Windows installation CD into the CD ROM and restart the computer 3 Follow the manufacturer s instructions for installing Windows Driver Installation The following steps describe the driver installation procedure 1 Install the VIA 4 in 1 driver first Operating System Driver Version Windows 98 v4 35 Windows 2000 XP v4 40 or later Normal installation procedures include the following steps a Select from the following four options e VIA ATAPI Vendor Support Driver e AGP VxD Driver IRQ Routing Miniport Driver VIA INF Driver v1 40a b Install the VIA AT
72. ase 30 bit 3 TDACEN TrimDAC enabled when 1 Mutually exclusive with EE_EN control When Register bit CMUXEN 1 the board is in auto calibration mode When this mode is enabled specific calibration voltages are fed back to analog channel inputs There are five calibration settings that can be used described in the table below These feedback voltages are selected based on the ADCHO and ADCH 1 settings ADCH4 2 are ignored during auto calibration Diamond Systems Corporation Hercules II EBX User Manual Page 105 CMUXEN SEDIFF ADCH 1 0 VCAL Voltage 0 E S S B 1 0 0 0 0 0 0 1 0 1 0 1 1 2 5mV 1 0 2 1 0 2 1 12V 1 0 3 1 1 3 4 78V 1 0 X 4 VOUTO Notes 1 VCALO is for bipolar A D offset adjustments 2 VCALI is for unipolar offset adjustments 3 VCAL2 is for full scale 0 1 25 0 2 5 1 25 and 2 5 modes 4 VCAL3 is for full scale 0 5 0 10 5 and 10 modes 5 VCAL4 is D A VOUTO for D A calibration this loops Analog output VOUTO back The following table shows the TrimDAC AD8801 outputs OUTPUT TrimDAC NAME FUNCTION POLARITY address 00 ADCOFF coarse A D offset all modes coarse The same for bipolar Inversed for unipolar 01 ADCOFF fine A D offset fine The same for bipolar Inversed for unipolar 02 ADCFUL coarse A D full scale all modes coarse Inversed 03 ADCFUL fine A D full scale fine Inversed 04 DACOFF
73. at the connector pin is 5V 0 gain of 1 1 gain of 2 2 gain of 4 3 gain of 8 Diamond Systems Corporation Hercules II EBX User Manual Page 75 A D Range Status Readback Base 4 Read Bit 7 6 5 4 3 2 1 0 Name ADBUSY WAIT DABUSY DABU SEDIFF ADBU G 1 0 ADBUSY 0 A D is idle and data may be read out 1 A D is performing an A D conversion WAIT 0 A D circuit is ready to perform an A D conversion 1 A D circuit is settling on a new channel or gain setting The program must not initiate an A D conversion while WAIT 1 DABUSY 0 D A circuit is idle D A output is stable 1 D A circuit is transferring data to the D A chip after writing data to the board DABU 0 bipolar 1 unipolar D A output range SEDIFF 0 single ended 1 differential A D mode ADBU 0 bipolar 1 unipolar A D input range G 1 0 Readback of global A D gain setting The individual A D gain settings may not be read back D A Channel Base 5 Write Bit if 6 5 4 3 2 1 0 Name SU DACH 1 0 SU Simultaneous Update 0 Transparent written directly to the DAC s Simultaneous write 1 Latch and hold data DAC output not updated until 0 is written later DACH 1 0 D A channel number Note Writing to this register updates the selected D A channel with the data currently stored in registers Base 6 and Base 7 The high order bit determines if the
74. ate I O device complement basic hard drive key board mouse USB devices and a network PC 104 Plus card for example 1 4A at 13V is considered sufficient ATX control enables the 5V and 12V power to be switched ON and OFF with an external momentary switch A short press on the switch turns ON power and holding the switch on for four seconds or longer turns OFF power See the Utility Header description for connector J7 above cable no 698015 mates with connector J29 The cable provides ten color coded wires with stripped and tinned leads for connection to user supplied power sources For cases where the input power supply is 12V the Vin and 12V input wires may be connected In this case ensure that the power supply into the 12V does not exceed the voltage requirements for that input pin Diamond Systems Corporation Hercules II EBX User Manual Page 42 High Voltage Power Input Connector Optional Connector J30 is used for high voltage power input which is optionally available for special higher voltage applications This option is intended to allow for a higher power supply input than the standard power input provided using connector J29 Figure 25 J30 Connector s 1 Ground 2 Vwin Signal Definition Vwin Main input power 13V to 40V input range Ground OV ground power return path CompactFlash Slot optional A CompactFlash Socket is located under the board a
75. ating may be enabled or disabled at any time When gating is disabled the counter counts all incoming edges When gating is enabled if the gate is high the counter counts all incoming edges and if the gate is low the counter ignores incoming clock edges Loading and Enabling a Counter For counter 0 three bytes are required to load a 24 bit value For counter 1 two bytes are needed for a 16 bit value The value is an unsigned integer 1 Write the data to the counter Break the load value into 3 bytes low middle and high Two bytes for Counter 1 and write the bytes to the data registers in any sequence Counter 0 Counter 1 outp base 24 low outp base 24 low outp base 25 middle outp base 25 high outp base 26 high 2 Load the counter Counter 0 Counter 1 outp base 27 0x02 outp base 27 0x82 3 Enable the gate if desired Counter 0 Counter 1 Diamond Systems Corporation Hercules II EBX User Manual Page 113 outp base 27 0x10 outp base 27 0x90 4 Enable the counter Counter 0 Counter 1 outp base 27 0x04 outp base 27 0x84 Reading a Counter 1 Latch the counter Counter 0 Counter 1 outp base 27 0x40 outp base 27 0xC0 2 Read the data The value is returned in 3 bytes low middle and high 2 bytes for counter 1 Counter 0 Counter 1 low inp base 24 low inp base 24 middle inp base 25 high inp base 25 high inp base 26 3 Ass
76. ax e 2 ports 16550 compatible e 2 ports 16850 compatible with 128 byte FIFOs and RS232 RS422 and RS485 capability 4USB 1 1 ports e 2 IDE drive connectors standard 40 pin IDE and 44 pin version for notebook drives e Accepts solid state flash disk modules directly on board Diamond Systems Corporation Hercules II EBX User Manual Page 8 e 10 100 BaseT full duplex PCI bus mastering Ethernet 100Mbps and 10Mbps IrDA port requires external transceiver e PS 2 keyboard and mouse ports LEDs e Interface for speaker and additional external LEDs Analog Input e 32 single ended 16 differential inputs 16 bit resolution e 250KHz maximum aggregate A D sampling rate e Programmable input ranges gains with maximum range of 10V 0 10V e Both bipolar and unipolar input ranges e 5 ppm C drift accuracy e Internal and external A D triggering e 2048 sample FIFO for reliable high speed sampling and scan operation Analog Output e 4 analog outputs 12 bit resolution e 10V and 0 10V output ranges e Simultaneous update e Adjustable output range optional Digital I O e 40 programmable digital I O 3 3V and 5V logic compatible e Enhanced output current capability 8 12mA max e Selectable pull up down resistors on board Counter Timers e 24 bit counter timer for A D sampling rate control e 1 16 bit counter timer for user counting and timing functions e Programmable gate and count enable e Internal and
77. ble for ADC 9 IRQ 9 selectable for COM3 15 IRQ 15 selectable for COM4 use with pins C3 C4 AD C3 COM3 select for IRQ C4 COM4 select for IRQ use with pins 3 4 5 7 9 15 AD ADC select for IRQ use with pins 4 5 7 C3T COM3 RS 485 termination C4T COM4 RS 485 termination in terminates 120 Ohm onboard 422T RS 422 Termination C3 422 COM3 RS 422 enable C4 422 COM4 RS 422 enable in override RS 232 RS 485 in BIOS out RS 422 disabled Diamond Systems Corporation Hercules II EBX User Manual Page 46 Serial Port and A D IRO Settings COM3 may be directly set to IRQ3 IRQ4 or IRQ9 COM4 may be directly set to IRQ3 IRQ7 or IRQ15 The A D circuit on models that include Data Acquisition may be set to IRQ4 IRQS or IRQ7 It is possible to share an interrupt with an on board resource to share IRQ3 with COM2 for example provided that the OS or driver can handle the IRQ sharing Figure 27 shows how to select the IRQ for COM3 and COM4 Figure 28 J4 COM3 COM4 IRQ Selection Examples COM3 IRQ3 COM4 IRQ3 C3 C3 J4 oo o al ATX 00 3 c4 lo alc AD lO 0 5 oo CA oo oo oo oo oo R loo ATX INT COM J4 oo o ol ATX ooo C3 lO O AD AD 1991 5 oo oo oo oo oo oo oo ATX INT COM 422 C3 amp C3T 4227 422 KE Oo 99999 CAT 422T CA 422 J4 oo ol ATX oole de C3 JO O AD AD 0 0 5 7 lO oi CA oo oo oo oo a loo BY loo ATX INT COM J4 oo Q Q ATX ool CA j
78. bled and timer registers are cleared to zero e FIFO is reset causing all contents to be lost and threshold is set to 1024 samples e The internal channel gain table is reset to all zeros Select page 0 Main features page 1 Extended features page 2 ID page 3 Copyright notice page Copyright Notice Base 1 to Base 31 Read Bit 7 6 5 4 3 0 Name Copyright Notice Text Copyright 31 bytes of 8 bit ASCII formatted copyright notice text Notice Text Diamond Systems Corporation Hercules II EBX User Manual Page 92 Data Acquisition Circuit Configuration There are three primary configuration options for the data acquisition circuitry on the Hercules II EBX board e Single ended versus differential A D e Unipolar or bipolar A D e Unipolar or bipolar D A These settings are configured in software using the PAGE 0 register Analog Configuration Base 1 No jumper configuration is needed Single ended Differential Inputs Hercules II EBX accepts both single ended and differential inputs A single ended input uses 2 wires input and ground The measured input voltage is the difference between the two wires A differential input uses 3 wires input input and ground The measured input voltage is the difference between the and inputs Differential inputs are frequently used when the grounds of the input device and the measurement device Hercules II E
79. ck input as well as an external input EXTTRIG an external gate GATE 1 and an output TOUT1 The gate and output signals are present on the I O header only when DIOCTR is zero The input may come from either the external trigger signal or the on board clock generator When the on board clock generator is used the clock frequency is either 10MHz or 100 KHz as determined by Page 0 register control bit CKFRQ1 located at Base 12 bit 1 The output TOUT 1 is a positive going pulse that appears on pin 38 of I O header J8 when DIOCTRI is one The output pulse occurs when the counter reaches zero When the counter reaches zero it reloads and starts over on the next clock pulse The output stays high the entire time the counter is at zero 1 e the interval from the input pulse that causes the counter to reach zero until the input pulse that causes the counter to reload When CLKSRC1 is one external source Counter 1 counts positive edges of the signal on pin 41 EXTTRIG on the I O header The counter can either be free running or gated as determined by the Page 0 register Gate Enable control bit GTEN Base 27 bit 4 The gate signal is provided on pin 37 when DIOCTRI is one enabling counter functions on I O header and GTEN is one enabling gating for this counter If the gate signal is high then the counter counts and if it is low the counter holds its value and ignore input pulses This pin can have a pull up so the counter can operate withou
80. coarse D A offset coarse Inversed 05 DACOFF fine D A offset fine Inversed 06 DACFUL coarse D A full scale coarse The same 07 DACFUL fine D A full scale fine The same Notes 1 The same means increase in the trimDAC value increases readout and vice versa 2 Inversed means increase in the trimDAC value decreases readout and vice versa 3 Coarse adjustment is the basic trimDAC variance while Fine only affects adjustment of about 1 of full effect in all modes Analog Circuit Calibration Procedures Calibration applies only to boards with the analog I O circuitry Diamond Systems Corporation Hercules II EBX User Manual Page 106 The analog VO circuit is calibrated during production test prior to shipment Over time the circuit may drift slightly If calibration is desired internal auto calibration can be performed using the software routines provided with the Diamond Systems Corporation driver libraries which are included with the Hercules II EBX development kit Six adjustments are possible e A D bipolar offset e A D unipolar offset e A D full scale e D A bipolar offset e D A unipolar offset e D A full scale The specific algorithms required to perform auto calibration can be involved and are too detailed to be presented in this document The detailed procedures are provided in the included drivers and additional auto calibration information can be provided as
81. counter until CTO is zero This allows the current cycle to complete without distortion This implies that a long PWM cycle duration for the current cycle may cause a considerable update delay before the new settings are seen on the PWM outputs If the current PWM cycle period is several seconds in duration and the PWM data is updated near the beginning of a cycle the output is not updated with the new settings until several seconds later The ENAB bit controls PWM operation When ENAB is one the PWM runs and when ENAB is zero the PWM circuit is disabled In the disabled state the PWM retains its current state but does not count input clocks and the output is set to the inactive state as determined by POL OUTEN controls the output signal If OUTEN is one the output is active If OUTEN is zero the output is equal to the inactive state determined by POL When POL is zero the inactive state is zero and when POL is one the inactive state is one The truth table is as follows CTI Output POL OUTEN Output Pin Comments 0 0 0 1 Active low active disabled 0 0 1 0 Active low active enabled 0 1 0 0 Active high inactive disabled 0 1 1 0 Active high inactive enabled 1 0 0 1 Active low inactive disabled 1 0 1 1 Active low inactive enabled 1 1 0 0 Active high active disabled 1 1 1 1 Active high active enabled Diamond Systems Corporation Hercules II EBX User Manual Page 116 Pulse
82. ct flash socket is attached to the bottom of the PCBA Bus Interfaces Diamond Systems Corporation Hercules II EBX User Manual Page 12 The PCI bus is the primary connection between the North Bridge South Bridge Ethernet and PC 104 Plus devices The ISA bus is exposed on PC 104 connectors for use by add on modules The PC 104 connectors allow expansion above the board only Power Supply The power supply is an on board converter allowing an input range of 5 to 28VDC Jumper selection allows power to be taken from the PC 104 bus and not from the on board converter The power supply includes ATX power switching and ACPI power management support The master 5V input is controlled by the ATX function with an external switch input Battery Backup The board includes a backup battery for CMOS RAM and real time clock backup The battery life is greater than four years A connector and jumper are provided to disable the on board battery and enable the use of an external battery instead Watchdog Timer A watchdog timer WDT circuit consists of two cascaded programmable timers which may be triggered in hardware or software Configurations Hercules II EBX is available in two standard configurations Custom configurations and ruggedization services are also available Model Description HRC800 5A512 800MHz processor 512MB DRAM full data acquisition HRC800 5N256 800MHz processor 256MB DRAM digital I O Di
83. cules II EBX User Manual Page 81 Digital VO Port E Base 20 Read Write Bit Name DIOE7 0 DIOE7 0 Port E DIO data Port E shares device pins with 4 counter timer signals and 4 PWM outputs The function of these two groups of four pins is controlled with register bits DIOCTR1 and DIOCTRO DIOCTRI 0 digital I O lines DIOE7 4 appear on DIOE7 4 pins of I O connectors 1 counter signals appear on DIOE7 4 pins of I O connectors DIOCTRO 0 digital I O lines DIOE3 0 appear on DIOE3 0 pins of I O connectors 1 PWM signals appear on DIOE3 0 pins of I O connectors See register Base 12 Configuration Register for details Digital I O Configuration Bit Programming Base 22 Write Bit Name P2 PO B2 B0 D DIRE A MODE MODE P2 PO B2 B0 DIRE A Indicates port direction or bit programming mode 0 port direction used to configure the direction of the digital I O ports 1 bit programming provides a quick way to program individual digital I O bits MODE 1 Port number 0 A 1 B 2 C 3 D MODE 1 Bit number 0 7 MODE 1 Bit value 0 or 1 MODE 0 Direction for ports A E On power up or system reset all ports are set to input mode and the contents of the output registers are set to 0 0 input 1 output Diamond Systems Corporation Hercules II EBX User Manual Page 82 Note Counter timer
84. de Input Voltage Symbolic Formula Input Voltage for 0 5V Range 32768 OV 0 0000V 32767 1 LSB Vrs 65536 0 000076V 1 Vrs 2 1 LSB 2 4999V 0 Vis 2 2 5000V 1 Vrs 2 1 LSB 2 5001 V 32767 Vrs 1 LSB 4 9999V A D Scan Interrupt and FIFO Operation The control bits SCANEN scan enable and AINTE A D interrupt enable in conjunction with the FIFO determine the behavior of the board during A D conversions and interrupts At the end of an A D conversion the 16 bit A D data is latched into the 8 bit FIFO in an interleaved fashion first the LSB followed by the MSB A D data are read out of the FIFO with one 16 bit or two 8 bit read operations first Base 0 LSB followed by Base 1 MSB When SCANEN 1 each time an A D trigger occurs the board performs an A D conversion on all channels in the channel range programmed in the A D Low Channel register Base 2 and A D High Channel register Base 3 When SCANEN 0 each time an A D trigger occurs the board performs a single A D conversion and advances to the next channel to wait for the next trigger During interrupt operation AINTE 1 the FIFO fills with data until it reaches the threshold programmed in the FIFO threshold register when an interrupt request occurs If AINTE 0 the FIFO threshold is ignored and the FIFO continues to fill The FIFO Threshold Registers should be set to the desired depth before configuring the system to begin operation in interru
85. disks CD ROMs or flash disk modules The 44 pin connector includes power and mates directly with notebook drives and flash disk modules To use a standard format hard disk or CD ROM drive with a 40 pin connector an adapter PCB such as Diamond Systems Corporation ACC IDEEXT is required Note Connector J16 supports only up to ATA 33 UDMA 2 It does not support ATA 66 UDMA 3 to 5 transfer modes Secondary IDE Connector Connector J17 is used for the secondary IDE connection Figure 15 J17 Connector A Reset 1 Ground D7 3 D8 D6 5 D9 D5 7 D10 D4 9 D11 D3 11 D12 D2 13 D13 D1 15 D14 DO 17 D15 Ground 19 Key not used DRO 21 Ground IDEIOW 23 Ground IDEIOR 25 Ground IORDY 27 Ground DACK 29 Ground IRQ14 31 Pulled low for 16 bit operation Ai 33 Not used Diamond Systems Corporation Hercules II EBX User Manual Page 30 AO 35 36 A2 CSO0 37 38 CA1 LED 39 40 Ground Connector J17 mates with Diamond Systems Corporation UDMA cable no 698026 and may be used to connect up to two IDE drives hard disks CD ROMs or other IDE ATAPI devices The 40 pin connector must mate with this 80 conductor UDMA cable for maximum performance Connector J17 fully supports up to ATA 100 UDMA Mode 5 provided that an appropriate UDMA 80 conductor cable is used Note The cable type is automatically be detected by the BIOS and the tr
86. e e Direction Programmable in 8 bit ports e Output current 0 12mA max 1 4mA max e Counter timers 1 24 bit A D sample rate control 1 16 bit general purpose Power Supply Input Voltage 5 28VDC standard 20 48VDC optional e Output power 40W total 30W available e Power consumption 10W Output voltages 5V 3 3V on PCI bus e Switched outputs 5V 12V 3 3V General e Dimensions 8 00 X 5 75 EBX e RoHS 77mA Y 5V 385 mW without modules e Operating temperature 40 to 85 C e Weight Diamond Systems Corporation Hercules II EBX User Manual Page 130 Additional Information Additional information can be found at the following websites 1 Diamond Systems Corporation http www diamondsystems com Diamond Systems Corporation Hercules II EBX User Manual Page 131 Appendix A Hercules and Hercules II Differences The following summarizes the differences between the 1st generation Hercules board and the Hercules II board Hercules II uses the Via Mark Corefusion Processor Memory which includes an integrated North Bridge and features reduced power consumption Processor is 800MHz fanless vs 5SOMHz fanless 750MHz with fan Memory size is increased to 256 512MB depending on configuration instead of 128 256MB e Support for the disk on chip feature has been removed COM3 and COMA support RS 232 RS 422 and RS 485 protocols instead of RS 232 and
87. e between RS 232 mode default and RS 485 mode If RS 485 mode is selected special consideration is required to implement RS 485 mode in both hardware and software In hardware the critical issues for RS 485 mode are e Receive and transmit only No handshaking lines are supported e Differential signaling two wires each high and low for receive and transmit e Signal definitions for connector J18 change depending on the mode for each serial port In software control of the RS 485 transmit line is handled using the serial port RTS signal Defined as a handshaking signal for RS 232 it is used as a write control signal for RS 485 operation The RS 485 implementation for COM3 4 always receives the data sent For example when data is transmitted from COM3 the same data is locally echoed back into the receive buffer of COM3 This allows for data verification to identify RS 485 network collisions i e if another device sends data onto the RS 485 lines at the same time the data coming into the receive buffer does not match and is not received To transmit data for one of these RS 485 ports the RTS signal must be driven active The transmitter for that RS 485 port is then active and remains active until the RTS signal is returned to its default no transmit state The typical sequence to transmit data on a shared RS 485 cable as follows 1 Set RTS high to enable transmit 2 Send data which is echoed to the receive buffer of the same p
88. e to include board standoffs Inordinate flexing of the main PC 104 and PC 104 Plus connectors can seriously reduce the effective lifespan of the connectors as well as cause potential system instability due to incomplete connection across system buses Diamond Systems Corporation Hercules II EBX User Manual Page 127 CompactFlash There is a CompactFlash connector located on the bottom of the board under J34 A CompactFlash card placed in this slot is recognized and treated as an IDE device A CompactFlash card can be used as the boot device for a system The Compact Flash installation requires that no cable connections to connector J17 No other IDE devices are supported on this channel when a CompactFlash card is installed so the Primary IDE channel is still available The board is not configured for CompactFlash support by default To enable CompactFlash add a jumper to J5 to enable MASTER support With the jumper added any card placed in the CompactFlash slot should be detected as an IDE device upon boot up NOTE Do not add or remove a CompactFlash card while the board is powered up Either remove power from the entire system or power the board off before making these changes Diamond Systems Corporation Hercules II EBX User Manual Page 128 Customization Options There are many customer specific customizations that can be done for the Hercules II EBX including e Latching connectors replacing the box headers used for most o
89. eared to zero e Watchdog timer is disabled and timer registers are cleared to zero e FIFO is reset causing all contents to be lost and threshold is set to 1024 samples e The internal channel gain table is reset to all zeros PAGE Select page 0 Main features page 1 Extended features page 2 ID page 3 Copyright notice page A D Feature ID Base 24 Read Bit 7 6 5 4 3 2 1 0 Name ADQ7 0 ADQ7 0 Indicates the number of A D channels available on the board D A Feature ID amp FIFO Depth ID Base 25 Read Bit 7 6 5 4 3 2 1 0 Name FDID2 0 DAQ4 0 FDID2 0 Indicates the maximum sample depth supported by the FPGA FIFO Currently a value of 001 is defined which describes a FIFO depth of 2048 samples DAQ4 0 Indicates the number of D A channels available on the board Diamond Systems Corporation Hercules II EBX User Manual Page 90 Digital I O Feature ID Base 26 Read Bit 7 6 5 3 0 Name DIOQ7 0 DIOQ7 0 Indicates the number of DIO pins available on the board PWM and Ctr Timer Feature ID Base 27 Read Bit 7 6 5 3 0 Name PWMQ3 0 CTRQ3 0 PWMQ3 0 Indicates the number of PWM channels available on he board CTRQ3 0 Indicates the number of counter timers available on the board
90. ed to allow different voltage levels for the signaling interface The keying mechanism defined by the specification is intended to prevent a 3 3V only device that is not 5V tolerant from receiving signals that are at a 5V signal rail In a standard PCI interface this is handled by blocking a portion of the edge connector such that the female connector is keyed as either 3 3V or SV This is intended to provide a way of preventing a 3 3V only card ina 5V system Many vendors choose to implement a universal edge connector that fits into either configuration this is typically done in one of two ways e Use 3 3V signaling that is 5V tolerant e Use the VIO pins on the PCI edge connector to power the I O drive circuitry or the maximum voltage overshoot protection circuitry on the card From a system perspective the primary question is which standard can you support Many card vendors choose to implement a specific standard such as SV only and connect the VIO signals to the internal power rail such as SV signals on the PCI edge connector While this is a violation of the more recent PCI specification it is also relatively common especially for card developers who developed PCI cards before the standard was updated for 3 3V support On the Hercules II EBX all of the PCI circuitry is driven with 3 3V circuitry and is 5V tolerant Given this the Hercules II EBX main board can support either 3 3V or 5V only cards For this
91. eeeeeeeeeenaaeee 112 Command SCQUENCES ira ti AA AS Enna leet 113 Pulse Width Modulation Operaton see EEN 116 Pulse Width Modulation Exvample sss sese eee 117 Watchdog Timer Programming sek nee 119 Example Watchdog Timer With Software Trigger 119 Example Watchdog Timer With Hardware Troger sese 119 Data Acquisition Specifications Data Acquisition units ONly oooccccnccnnnnnnnnanannnn 120 Analog MAUS eae eee Pech aah tenth tae ial ha adler Sheath hd ala ected 120 Analog el te lt td os 120 Digital Disaster 120 Counter TIMES eene EE ee 120 GONG iS dada 120 FlashDisk Mod a LE Ee 121 Installing the FlashDisk Module esse esse 121 Using the FlashDisk with Another IDE Drive 121 Power SUD PI tege TT 122 Utility Bo r Beane aimee reer eel Hee rr nn ita 123 Diamond Systems Corporation Hercules II EBX User Manual Page 4 FlashDisk Programmer Boat cccccssssesseeeeeeeeeeeeeeeseneeeeeeeeeeeseeeecceeeeeeeeeeeeeeeeeeeeeeaes 124 UOC DNS sais escent co ve aco tie 125 Mounting PC 104 Cards onto a Hercules Il EBX Baseboard seen 127 COmpactrlaSA E 128 Customization OPUS nenen 129 le e E 130 PN ated atone ice aera aaa E bn cachet a tale aap eee ugh clad Beh ta Er ieee ha cee 130 Data Acquisition EEN eessen 130 Power UP A 130 RCTS A O OO 130 Additional MTOR tN OMe pda 131 Appendix A Hercules and Hercules I Differences cccccccccccccccccccnccccnnnnnss 132 Technical SUpport ss aa 133 Figures Figure 1 Hercule
92. emble the bytes into the complete counter value Counter 0 Counter 1 val high 2 16 middle 2 8 low val high 2 8 low Enabling the Counter Gate Counter 0 Counter 1 outp base 27 0x10 outp base 27 0x90 The counter runs only when the gate input is high Disabling the Counter Gate Counter 0 Counter 1 outp base 27 0x20 outp base 27 0xA0 The counter runs continuously Diamond Systems Corporation Hercules II EBX User Manual Page 114 Clearing a Counter Clearing a counter is done to restart an operation Normally you only clear a counter after you have stopped disabled and read the counter If you clear a counter while it is still enabled it continues to count incoming pulses so its value may not remain at zero 1 Stop disable the counter Counter 0 Counter 1 outp base 27 0x08 outp base 27 0x88 2 Read the data optional See Reading a Counter above 3 Clear the counter Counter 0 Counter 1 outp base 27 0x01 outp base 27 0x81 Diamond Systems Corporation Hercules II EBX User Manual Page 115 Pulse Width Modulation Operation Hercules II EBX contains four PWM generators for automatic generation of a regular pulse with independently configurable duty cycle and frequency These output signals are present on DIO Header J8 pins 33 36 PWM output channel 0 3 when DIOCTRO is one Each PWM consists of two 24 bit down counters CTO and CT1 CTO controls the fre
93. ence describes the crisis recovery procedures 5 Short the Crisis Recovery pads or RTS and RI on COM1 PC Serial Port Crisis Recovery DE 9 pin 7 RTS pin 9 RI 6 Connect a USB Floppy Drive with Crisis Recovery floppy disk inserted 7 Power up reset the system The floppy disk should be accessed the access light sound of the floppy drive persists for several seconds If you have a PC speaker attached to the utility header after a few seconds you should hear a series of beeps 8 Unshort the Crisis Recovery pads or the RTS RI connection after crisis recovery begins after the floppy is first accessed or after the first system beep 9 At the conclusion of the crisis recovery BIOS update the system beeps and resets 10 Immediately enter the BIOS setup screen by pressing F2 from the initial BIOS POST screen 11 Press F9 to load defaults 12 While in the BIOS setup menus reset any non default settings as needed 13 Exit the BIOS menus and save the settings BIOS COM Port Settings The BIOS may be used to configure the four COM PORTs The configuration of COM1 2 is handled differently than COM3 4 COM1 2 are both located inside the core chipset used for the Hercules II EBX The configuration procedures are fully configurable in software using BIOS setup screens e COM 1 has the following options ISA I O Address 0x3F8 default 0x2F8 0x3E8 or 0x2E8 ISA IRQ IRQ4 default or IRQ3 e C
94. f the board I O connections e Connectors with extra gold contact plating e Alternative heatsinks for low air flow and dusty environments e Conformal Coating e Jumperless configuration all settings made on board with no jumper headers required Contact your sales representative for details on these special order options Diamond Systems Corporation Hercules II EBX User Manual Page 129 Specifications CPU e Processor VIA Mark CoreFusion CPU e Speed 800MHz e Power consumption 10W e Cooling Heat sink no fan e Chipset VIA VT8606 Mark internal 82C686B e Memory 256 512MB depending on configuration e Bus interface PC 104 Plus ISA PCI e Display type CRT and or LVDS flat panel e Resolution 1600 x 1200 e Video memory 32MB UMA e USB ports 4 USB 1 1 e Serial ports 2 RS232 and 2 RS232 422 485 e Networking 10 100BaseT Ethernet e Mass storage interfaces 2 IDE UDMA 100 e Keyboard mouse PS 2 e Audio AC 97 Line in Line Out Mic and amplified speaker interface Data Acquisition Circuitry e Analog inputs 32 16 bit A D resolution e Max sample rate 250KHz total e Input modes Single ended differential e Input ranges 10V 5V 2 5V 1 25V 0 10V 0 5V 0 2 5V 0 1 25V e Accuracy lt 2LSB after autocalibration e Analog outputs 4 12 bit D A resolution e Settling time 7uS to 0 01 e Output current 5mA max 2kQ min load e Digital I O 40 lines 5v logic compatibl
95. g on what other devices are present in the system For example adding a PC 104 Plus card may change the on board Ethernet resources The serial port settings for COM3 and COM4 are jumper selectable whereas the settings for COM1 and COM2 are entirely software configured in the BIOS COM Port FPGA Control Registers A set of registers is located at addresses 0xA50 0xA5F for controlling the enhanced serial port features and for some FPGA control capability Only two registers from this range should be accessed by the user as shown in the following table Address Bit Read Write Functional Description UX A50 0 read only COM3 Address Selection read from jumper J5 A 1 read only COM4 Address Selection read from jumper J5 B 2 7 read only unused UX A51 0 read write COM3 0 Disable 1 Enable 1 read write COM3 0 RS 232 1 RS 485 2 read write COMA 0 Disable 1 Enable 3 read write COM4 0 RS 232 1 RS 485 4 7 read write unused set to 0 OxA52 0xASF 0 7 reserved do not access Diamond Systems Corporation Hercules II EBX User Manual Page 55 Console Redirection to a Serial Port In many applications without a video card it may be necessary to obtain keyboard and monitor access to the CPU for configuration file transfer or other operations Hercules II EBX supports this operation by enabling keyboard input and character output onto
96. gured as a slave device a master device on the same IDE Diamond Systems Corporation Hercules II EBX User Manual Page 51 channel is required for the CompactFlash to function Figure 39 shows the jumper setting for selecting master or slave mode Figure 36 CompactFlash Master Slave Selection Jumper J5 CONFIG 0900000 CompactFlash Slave 0000000 B A CFFW L DIO H DIO LINES lt PE4 5 6 7 J5 CONFIG 9 6 H 0000 CompactFlash Master o o ojojoooo B A CFFW L DIOH DIO LINES lt PE4 5 6 7 DIO Pull up Pull Down Selections The digital I O lines in the data acquisition section are broken into two blocks general purpose DIO lines DIO channels A D and Channel E bits 3 0 and multiplexed control lines DIO Channel E bits 7 4 The top three J5 DIO pins allow for a pull down left jumper or pull up right jumper selection for the general purpose pins The bottom three J5 DIO pins allow a similar selection for the multiplexed control lines This allows these alternate function pins to be selected separately since their function may require a different default state than that provided to the standard digital I O lines Figure 38 shows the data and control line jumper selections Figure 37 DIO Pull up Pull down Selection Jumpers J5 CONFIG oooooio o DIO Data Lines Pull up 0000000 Data 1 when not otherwise driven B A CFFW L DIO H DIO LINES lt PE4 5 6 7 J5 CONFIG oO ofo ojo DIO Data Lines Pul
97. hannels and a 2048 sample 4kByte FIFO Input ranges are programmable and the maximum sampling rate is 250 KHz The D A section includes four 12 bit D A channels The digital I O section includes 40 lines with programmable direction The counter timer section includes a 24 bit counter timer to control A D sampling rates and a 16 bit counter timer for user applications A 4 channel PWM controller provides a way to automatically generate PWM based waveforms High speed A D sampling is supported with interrupts and a FIFO The FIFO is used to store a user selected number of samples and an interrupt is generated when the FIFO reaches this threshold Once the interrupt occurs an interrupt service routine reads the data from the FIFO In this way the interrupt rate is reduced by a factor equal to the size of the FIFO threshold enabling a faster A D sampling rate In DOS or similar low overhead OSs the circuit can operate at sampling rates of up to 250 KHz The interrupt rate when using high sample rates is kept low because of the large FIFO buffer With a 250 kHz sampling rate and a FIFO threshold of 1024 samples half full the interrupt rate is kept to a reasonable range of approximately 250Hz Reducing the FIFO interrupt threshold increases the interrupt rate for a given sampling frequency while increasing the threshold especially the FIFO full threshold increases the risk that samples may be lost because of interrupt latency The interrupt rate i
98. his bit causes the board to reload the calibration settings from EEPROM registers 0 7 into the eight TrimDACs which is equivalent to a reload operation During reload operation TDBUSY 1 CMUXEN Calibration multiplexer enable The CMUXEN bit is used to enable calibration mode After calibration is complete CMUXEN is reset and the desired configuration is restored The calibration multiplexer is used to read precision on board reference voltages that are used in the auto calibration process It also can be used to read the value of analog output 0 0 disable calibration multiplexer enable user inputs 1 enable calibration multiplexer and disable user analog input channels muxes TDACEN TrimDAC Enable Setting this bit will initiates a transfer to the TrimDAC This bit overrides the EE _EN setting if both bits are set simultaneously EE EN is ignored Diamond Systems Corporation Hercules II EBX User Manual Page 88 Calibration Status Base 30 Read Bit 7 6 5 4 3 2 1 Name 0 TDBUSY EEBUSY CMUXEN 0 0 0 TDBUSY TrimDAC busy indicator 0 User may access TrimDAC 1 TrimDAC is being accessed or reload operation is in progress EEBUSY EEPROM busy indicator 0 User may access EEPROM 1 EEPROM is being accessed CMUXEN Calibration multiplexer enable status 0 disabled 1 enabled Note When either TDBUSY or EEBUSY is set do not access the data and address registers at
99. hrough an additional cable The power may be provided from the CPU s power out connector J12 or from one of the two 4 pin headers on the ACC IDEEXT board Hercules II EBX cable number 698006 may be used with either power connector to bring power to the drive Diamond Systems Corporation Hercules II EBX User Manual Page 122 Utility Board A small Utility board DSC 861002 is included with the Hercules IT EBX cable kit C HRCEBX KIT This small board plugs onto the Utility connector J7 and provides a simple interface for various buttons and LEDs Power Button Simple push button for Power Button functionality Reset Button Push button causes system wide hardware reset Power LED Lights when main system power is active Stand by power may still be active when this LED is off Ethernet 100MBit link LED Lights when 100Mbit link is achieved I does not illuminate for 10Mbit link Ethernet Activity LED Pulses with Ethernet activity reads or writes IDE Activity LED Lights when any access is made through the two on board IDE connectors and reflects activity of up to four devices potentially active through the two IDE connectors e Speaker This speaker is a typical PC Beep speaker it is not an output for the on board sound system Figure 44 Utility Board O 861002 Rev E RESET ao Of POWER ACTIVITY f 5 N D S Diamond Systems Corporation Hercules II EBX User Manual Page 123
100. ia pin 9 The Hercules I EBX sound chip is AC97 compatible The Line Out is powered and used for the amplified Speaker Connector output J13 described below The line level output listed above is listed as either Headphone Out or Line Out 2 in most of the software and documentation for this sound interface Speaker Connector Connector J13 is used to connect speakers Figure 11 J13 Connector Dt Speaker left high Volume low Speaker left low Volume mid Line level mono output Audio ground Speaker right low Volume high O CO NI ol oi A Gol N Speaker right high GER CH No connect Signal Definition Speaker LEFT Speaker Connection Pair for LEFT speaker 4 Ohm Speaker Speaker RIGHT Speaker Connection Pair for RIGHT speaker 4 Ohm Speaker Mono Output Line Level mono output for reference Volume LOW MID HIGH These are volume controls for the attached speakers Diamond Systems Corporation Hercules II EBX User Manual Page 27 The volume control is capable of 32 discrete levels ranging from a 20dB maximum gain to 85dB Muted The main volume control is the MID line which may be tied to the center tap of a potentiometer with HIGH on one side and LOW on the other to give a full range of power control e Shorting MID to LOW mutes the speaker audio e Shorting MID to HIGH provides maximum
101. iately searches for a USB floppy device on any of the four USB ports Once a drive is found the board for a special crisis recovery disk which is provided by Diamond Systems Corporation If a valid recovery disk is found the board immediately begins loading and updating the BIOS Refer the the BIOS section of this document for a description of the BIOS recovery steps Diamond Systems Corporation Hercules II EBX User Manual Page 54 System Features System Resources The table below lists the default system resources utilized by the circuits on Hercules II EBX Device Address ISA IRQ ISA DMA Serial Port COM1 VO 0x3F8 0x3 FF 4 Serial Port COM2 VO 0x2F8 0x2FF 3 Serial Port COM3 VO 0x3E8 0x3EF 9 Serial Port COM4 VO 0x2E8 0x2EF S IDE Controller A T O 0x1F0 0x1F7 14 IDE Controller B VO 0x170 0x177 15 A D Circuit when applicable I O 0x240 0x25F 5 Serial Port FPGA Control T O 0xA50 0xA5F Ethernet OS dependent OS dependent USB OS dependent OS dependent Sound OS dependent OS dependent Video OS dependent OS dependent Most of these resources are configurable and in many cases the Operating System alters these settings The main devices that are subject to this dynamic configuration are on board Ethernet sound video USB and any PC 104 Plus cards that are in the system These settings may also vary dependin
102. icated video memory chips are not required Video features include both CRT and LCD support MPEG 2 motion compensation is built in to aid MPEG DVD decompression Video features also include the following e An 18 bit two channel LVDS hardware interface as an interface to LCD displays e CRT resolution of up to 1920 x 1440 e Simultaneous CRT and LCD support e TV output signals Audio The design provides AC97 audio support derived from the South Bridge chip The Via VT1612A CODEC provides audio processing Give special attention to design and routing to minimize noise on the audio I O lines Audio I O includes e Stereo line in e Stereo line out Mono mic in e Stereo internal line in Diamond Systems Corporation Hercules II EBX User Manual Page 11 The board includes audio power amplifier circuitry for stereo speaker output The amplifier circuit is powered by 5VDC from the board User DC control of volume is also provided which overrides the software settings Ethernet The board uses the National Semiconductor DP83815 chip on the internal PCI bus for 10 100Mbps Ethernet Magnetics are included on the board so that a complete circuit is provided Wake On LAN feature is supported However implementation of Wake On LAN requires integration with the board s power supply and possible BIOS extensions Data Acquisition The board provides the following data acquisition capabilities Type of LO Characte
103. igure 7 J8 Connector DIO AO DIO A2 DIO A4 DIO A6 DIO BO DIO B2 DIO B5 DIO B6 DIO CO DIO C2 DIO C4 DIO C6 DIO DO DIO D2 DIO D4 DIO D6 DIO E0 PWMO i 2 aa 5 6 7 8 9 10 mg 13 14 15 16 17 18 19 20 20 23 24 25 26 27 28 29 30 31 32 33 34 DIO A1 DIO A3 DIO A5 DIO A7 DIO B1 DIO B3 DIO B5 DIO B7 DIO C1 DIO C3 DIO C5 DIO C7 DIO D1 DIO D3 DIO D5 DIO D7 DIO E1 PWM1 Diamond Systems Corporation Hercules II EBX User Manual Page 22 DIO E2 PWM2 DIO E4 GATE1 DIO E6 DIOLATCH EXTTRIG ACK WDO FXB 5v 35 36 37 38 39 40 RG 43 44 45 46 47 48 49 50 DIO E3 PWM3 DIOE5 TOUT1 DIO E7 GATEO TOUTO WDI FXA FXB Digital ground Diamond Systems Corporation Hercules II EBX User Manual Page 23 Signal Definition DIO A7 A0 Digital I O port A programmable direction DIO B7 B0 Digital I O port B programmable direction DIO C7 CO Digital I O port C programmable direction DIO D7 D0 Digital VO port D programmable direction DIO E7 E0 Digital I O port E programmable direction Note E3 E0 may be configured for PWM signals PWM3 PWMO Pulse Width Modulation Outputs 4 independent channels Note E7 E4 may be configured for counter timer signals GATE 1 0 Gate inputs for Counter Timer 1 and 0 TO
104. imer to accommodate varying software latencies such as interrupt latencies and thread pre emption that may delay the watchdog trigger code Setting up the watchdog timer outp base 0 0x00 set page 0 outp base 28 40000 OxFF set LSB of WD timer A 4 seconds outp base 29 40000 gt gt 8 OxFF set MSB of WD timer A outp base 30 OxFF set WD timer B to 0 0255 seconds outp base 31 0x28 set WDEN 1 WDRST 1 enable WD timer reset With the timer setup and active run the watchdog timer trigger in a continuous thread of code while 1 outp base 31 0x80 trigger watchdog timer sleep 1000 sleep one second If this thread is interrupted for any reason the board resets four seconds after the last watchdog timer trigger Example Watchdog Timer With Hardware Trigger A hardware trigger relies on an external pulse to constantly trigger watchdog timer A If the external stream of pulses ever halts timer A decrements to zero and starts timer B Once timer B decrements to 0 the board resets In this example we will make use of the T 1 feature of timer A to automatically reset itself unless a physical connection is broken The physical connection must be made between WDO and WDI on the data acquisition header J9 Since software is not involved in maintaining the timer we can set the reset period to a much smaller value In this example the reset pulse travels across the physical
105. l D A channels are reset to zero scale CLRT Clear timer interrupt request CLRD Clear digital I O interrupt request CLRA Clear A D interrupt request ADSTART Start an A D conversion After this command ADBUSY 1 until the A D conversion is finished Each bit in this register represents a command Writing a to any bit executes the command specified by that bit Only one bit may be written at a time Diamond Systems Corporation Hercules II EBX User Manual Page 80 Hardware Configuration and A D Channel Readback Base 15 Read Bit 3 2 0 Name CFG 1 0 ADCH4 0 CFG 1 0 These bits report the logic level of two input pins on the logic chip that can be used to indicate the ADCH4 0 Current A D channel This is the channel sampled on the next A D conversion Digital I O Port A Base 16 Read Write board s hardware configuration The current default value is 11 Bit 3 2 0 Name DIOA7 0 DIOA7 0 Port A DIO data Digital VO Port B Base 17 Read Write Bit 3 2 0 Name DIOB7 0 DIOB7 0 Port B DIO data Digital I O Port C Base 18 Read Write Bit 3 2 0 Name DIOC7 0 DIOC7 0 Port C DIO data Digital I O Port D Base 19 Read Write Bit 3 2 0 Name DIOD7 0 DIOD7 0 Port D DIO data Diamond Systems Corporation Her
106. l down 0000000 Data 0 when not otherwise driven B A CFFW L DIO H DIO LINES lt PE4 5 6 7 J5 CONFIG 0000000 DIO Control Lines Pull up ooooolo o Data 1 when not otherwise driven B A CFFW L DIO H DIO LINES lt PE4 5 6 7 J5 CONFIG 0000000 DIO Control Lines Pull down oooolo ojo Data 0 when not otherwise driven B A CFFW L DIO H DIO LINES lt PE4 5 6 7 Diamond Systems Corporation Hercules II EBX User Manual Page 52 Jumper Block J19 PCI VIO Voltage Selection J19 provides simple access to the VIO setting for PC 104 Plus cards This setting sets the voltage supplied on the VIO power pins of the PC 104 Plus connector J3 Note that the VIO voltage is used on most cards to supply the I O Voltage for all PCI signals Figure 38 Jumper Block J19 J19 PCI VIO J19 Pin Label Function 3 Main 3 3v power supply on board connect pins 3 PCI VIO to select 3 3v PCI VIO PCI VIO for selecting either 3 3v or 5v onboard power supply 5 Main 5v power supply on board connect pins 5 PCI VIO to select 5v The Hercules II EBX can support either I O voltage range all on board signals are driven from 3 3V power rails but are 5V tolerant so the determination of the I O voltage is entirely dependent on the types of PC 104 Plus cards plugged into the system PC 104 Plus cards should be keyed to identify the correct voltage setting No key means that the card is univers
107. mple and decremented with every FIFO sample read using the A D LSB and A D MSB registers located at Base 0 and Base 1 respectively In Scan mode SCANEN 1 the FIFO threshold should be set to a number at least equal to the scan size and in all cases equal to an integral number of scans For example if the scan size is 8 channels the FIFO threshold could be set to 8 16 24 32 40 48 etc but not less than 8 In this way the interrupt occurs at the end of the scan and the interrupt routine can read a complete scan or set of scans each time it runs In non scan mode SCANEN 0 the FIFO threshold should be set to a level that minimizes the interrupt rate but leaves enough time for the interrupt routine to respond before the next A D conversion occurs Remember that no data are available until the interrupt occurs If the rate is slow the delay to receive A D data may be long Therefore for slow sample rates the FIFO threshold should be small If the sample rate is high the FIFO threshold should be high to reduce the interrupt rate However remember that the remaining space in the FIFO determines the time the interrupt routine has to respond to the interrupt request If the FIFO threshold is too high the FIFO may overflow before the interrupt routine responds A good rule of thumb is to limit the interrupt rate to no more than 1 000 2 000 per second in Windows and Linux or 10 000 per second in DOS Experimentation may be needed to determine
108. n cable to VGA Female DB15 for monitor out 7 C 20 18 18 inch ribbon cable for Utility connections includes power and reset contacts 8 C 40 18 40 wire data acquisition ribbon cable Analog I O 9 C 50 18 50 wire data acquisition ribbon cable Digital I O 10 C DB9M 4 40 pin ribbon cable to 4 serial port male DE 9 connectors 11 698026 UDMA ATA 100 cable for 1 or 2 IDE drives 12 698004 44 wire IDE cable for 1 or 2 laptop style drives 13 698015 Standard low voltage input power cable with stripped tinned leads for connection to external power source 14 698016 OPTIONAL High Voltage DC power input cable 15 698001 External 3V Battery power cable 16 698006 4 wire output power cable for external drives 17 698012 Dual USB cable 18 861002 Utility Board used instead of C 20 18 for development Diamond Systems Corporation Hercules II EBX User Manual Page 125 Diamond Systems Corporation Hercules II EBX User Manual Page 126 Mounting PC 104 Cards onto a Hercules II EBX Baseboard Hercules II EBX is designed to serve as a baseboard for a stack of PC 104 or PC 104 Plus boards Up to four PC 104 Plus boards are supported with the top most board only supporting slave mode PCI no bus mastering is supported for that board Any PC 104 boards should be mounted on top of the PC 104 Plus board stack when both board types are to be combined This should be obvious given the lack of PC 104 Plus stack through c
109. ndled in software Input Range Selection Hercules II EBX can be configured to measure both unipolar positive only and bipolar positive and negative analog voltages This configuration is done using the Page 0 register Analog Configuration Base 1 and applies to all inputs In addition you can select a gain setting for the inputs which causes them to be amplified before they reach the A D converter The gain setting is controlled in software so it can be changed on a channel by channel basis In general you should select the highest gain smallest input range that will allow the A D converter to read the full range of voltages over which your input signals will vary If you pick too high of a gain then the A D converter clips at either the high end or low end and you will not be able to read the full range of voltages on your input signals Input Range Table The table below indicates the analog input range for each possible configuration The polarity is set in the Page 0 register Analog Configuration Base 1 and the gain is set with the G1 and GO bits in the Page 0 register Input Range Control Base 4 The Gain value in the table is provided for clarity The single ended vs differential setting has no impact on the input range or the resolution Polarity G1 GO Input Range Resolution 1 LSB Bipolar 0 0 10V 305uV Bipolar 0 1 5V 153uV Bipolar 1 0 2 5V T6UV Bipolar 1 1 1 25V 38uV
110. necessary LCD Video Settings The Hercules II EBX provides direct digital support for LVDS based LCD interfaces only There are two settings that affect this support during BIOS boot e Boot Video Device By default this is set to AUTO With the AUTO setting the system attempts to identify an RGB monitor via DDC If no RGB monitor is detected the system enables LCD support To use the LCD display regardless of standard monitor connection i e with both connected at once set Boot Video Device to Both e Panel Type This setting defaults to 7 Do not alter this setting unless specifically instructed to do so This setting affects the LCD display modes supported and mode 7 is the only setting currently supported Miscellaneous Unless there is a specific reason to change the Memory Cache Settings it is best to preserve the default settings Certain system functions such as USB keyboard support under BIOS menus may experience a heavy reduction in performance if changes are made to these settings These cache settings can make a significant difference for low level BIOS calls and can severely limit performance if they are disabled On the Advanced Chipset Control screen the following settings should be retained e Frame Buffer Size 8MB e AGP Rate 4X e Expansion Bus Performance Normal Diamond Systems Corporation Hercules II EBX User Manual Page 59 The Frame Buffer size can be increased for specific applications However be a
111. needed The auto calibration settings are stored in nonvolatile memory in the calibration EEPROM and are reloaded each time the on board FPGA or system is reset Using EEPROM An EEPROM is used to store all TrimDAC adjustment values These values are loaded on reset or power up and it is critical that these values are correct to maintain accurate A D measurements These settings are configured to defaults during manufacturing test Do not change these settings without a complete understanding the impact of the change The EEPROM provides 256 bytes of non volatile storage The first 128 bytes addresses 0x00 0x7F are reserved for auto calibration settings and should not be overwritten The last 128 bytes are available for user accessible nonvolatile storage Access to EEPROM data can be handled through the DSCUD software utilities Note Remember that bytes 0 127 are reserved for system use TrimDAC autocal values Altering those values adversely affects system calibration Reading Value from EEPROM Example Read one byte from EEPROM location 128 outp base 0 0x01 set page to page 1 outp base 15 OxA5 unlock EEPROM outp base 29 0x80 set address location to 128 0x80 outp base 30 0xC0 Initiate transfer set to read while inp base 30 0x20 Wait for EEPROM load to complete data inpb base 28 data returned from EEPROM access outp base 0 0x
112. ogrammed threshold The interrupt routine reads out a number of samples equal to the FIFO threshold each time it runs A D scans are triggered by the source selected with CLKSEL ADBUSY goes high at the first ADSTS high pulse and stays high until the last ADSTS pulse goes low INT goes high after the last ADBUSY pulse goes low when WAIT goes low AND an integral no of scans has occurred AND the FIFO threshold is reached The interrupt routine reads out a number of samples equal to the FIFO threshold each time it runs Diamond Systems Corporation Hercules II EBX User Manual Page 100 Digital to Analog Output Ranges and Resolution Description Hercules II EBX uses a 4 channel 12 bit D A converter DAC to provide four analog outputs A 12 bit DAC can generate output voltages with the precision of a 12 bit binary number The maximum value of a 12 bit binary number is 2 1 or 4095 so the full range of numerical values that the DACs support is 0 4095 The value 0 always corresponds to the lowest voltage in the output range and the value 4095 always corresponds to the highest voltage minus LSB The theoretical top end of the range corresponds to an output code of 4096 which is impossible to achieve Note In this manual the terms analog output D A and DAC are all used interchangeably to mean the conversion of digital data originating from the Hercules I EBX computer hardware to an analog signal termina
113. on of each timer is user programmable When WD1 is triggered it begins to count down When it reaches zero it triggers WD2 sets WDO high and may also generate a user selectable combination of the following events e System Management interrupt SMI e Hardware reset WD2 then begins to count down When the WD2 counter reaches zero it unconditionally causes a hardware reset The WD2 timer gives external circuits time to respond to the WDO event before the hardware reset occurs The watchdog timer circuit is programmed via I O registers located on Page 0 Base 28 31 The Hercules H EBX watchdog timer is supported in the Diamond Systems Corporation Universal Driver software version 5 7 and later Failsafe Mode and BIOS Recovery The Hercules II EBX board has the capability to force the BIOS code to be updated on power up The board always checks the BIOS for errors at power up using an internal CRC code and may try to force an update if an error is detected Otherwise the BIOS can be forced to update by shorting the two crisis recovery pads located just below the J18 connector If the crisis recovery pins are shorted as the board powers up and enters self test the board immediately searches for a USB floppy device on any of the four USB ports Once a drive is found the board for a special crisis recovery disk which is provided by Diamond Systems Corporation If a valid recovery disk is found the board immediately begins loading and updating
114. onnectors on a standard PC 104 board PC 104 Plus requires a board configuration setting for each board in a PC 104 Plus board stack Ensure that the lowest board in the stack is assigned to the lowest board ID as per the PC 104 Plus specification This setting establishes the PCI Clock PCI Interrupt routing the Bus Master signals and the device ID setting for PCI configuration These settings are critical Two boards should never be configured with identical board stack settings because this will result in problems accessing PCI devices and may cause damage to the main board and or the PC 104 Plus boards in the stack Note Do not configure two PC 104 Plus boards with the same board stack ID PC 104 is much less critical in this regard but care should be taken to ensure that the ISA resource allocations allow space for the specific boards added in the stack Resources IRQs in particular can be very limited in a system with so many devices present on the main board It is important to ensure that ISA I O Memory IRQ and DMA configuration conflicts are resolved before powering up the system Otherwise it is possible that the system boot sequence will be impeded by these conflicts Take care to read through this documentation particularly the section on ISA Resource defaults to familiarize yourself with the internal resources used before adding components that might cause conflicts When adding boards to the PC 104 board stack be sur
115. or lt PE4 5 6 7 B COM4 A COM3 DIO Control Lines pull up L CompactFlash IDE pull down H Write protect Flash Diamond Systems Corporation Hercules II EBX User Manual Page 50 JS Pin Label Function B COM4 port address selection in 0x03E8 out 0x02F8 A COM3 port address selection in 0x02F8 out 0x03E8 CF CompactFlash IDE in master out slave default FW reserved for future use L DIO control lines pull up pull down DIO jumper DIO L pull down H jumper DIO H pull up unlabeled pins DIO data lines pull up pull down opposite pins jumper DIO L pull down L DIO H jumper DIO H pull up Serial Port Address Setting COM3 and COM4 I O address may be set to either 0x03E8 or 0x02F8 as shown in Figure 28 Figure 35 COM3 COM4 I O Address Selection J5 CONFIG 0000000 0000000 B A CFFW L DIO H J5 CONFIG pes sss COM3 0x3E8 COM4 0x2F8 DIO LINES lt PE4 5 6 7 COM3 0x2F8 COM4 0x3E8 B A CFFW L DIO H DIO LINES lt PE4 5 6 7 These settings are effective immediately However the BIOS must start with these jumpers in position to correctly detect and configure the ports Note Change these settings only while the system is powered down CompactFlash IDE Control Optional The optional CompactFlash slot on the back of the board is configured to the secondary IDE channel and can be detected as either a master or a slave device When confi
116. ort 3 Set RTS low to disable transmit 4 Verify that data is received and that it matches the transmit data If the data does not match re transmit the data RS 422 Mode COM3 and COM4 are independently selectable to operate in RS 422 mode instead of RS 232 mode default or RS 485 mode Jumper the J4 connector RS 422 pins to override the BIOS RS 232 RS 485 selection To operate COM3 in RS 422 mode jumper J4 pins labeled C3 422 To operate COM4 in RS 422 mode jumper J4 pins labeled C4 422 If RS 422 mode is selected special hardware and software consideration is required to implement RS 422 PS 2 Ports Hercules II EBX supports two PS 2 ports e Keyboard e Mouse The PS 2 ports are accessible using a cable assembly DSC 698022 attached to connector J6 Support for these ports is independent of and in addition to mouse and keyboard support using the USB ports Diamond Systems Corporation Hercules II EBX User Manual Page 64 USB Ports Hercules II EBX has four USB Ports referred to as USBO through USB3 Four USB 1 1 ports USBO through USB3 are accessible using cable assemblies attached to connectors J22 and J21 The USBI port is also available using on board vertical USB connector J23 located on the top left corner of the board Connector J23 should only be used when USB1 on J22 is not used otherwise neither device will operate correctly USB support is intended primarily for the following devices although any USB stand
117. ould be the bottom board of a PC 104 Plus stackup In the connector J3 pinout table below the top corresponds to the left edge of the connector when the board is viewed from the primary side the side with the CPU chip and the female end of the PC 104 Plus connector and the board is oriented so that the PC 104 connectors are along the bottom edge of the board and the PC 104 Plus connector is in the center of the Hercules II EBX board Figure 4 J3 Connector A B C D 1 GND 5 0V KEY Reserved 5V ADOO 2 VIO ADO2 ADO1 5V 3 ADO5 GND AD04 ADO3 4 C BEO ADO7 GND ADO6 5 GND ADO9 ADO8 GND 6 AD11 VI O AD10 M66EN 7 AD14 AD13 GND AD12 8 3 3V C BE1 AD15 3 3V 9 SERR GND SBO PAR 10 GND PERR 3 3V SDONE 11 STOP 3 3V LOCK GND 12 3 3V TRDY GND DESEL 13 FRAME GND IRDY 3 3V 14 GND AD16 3 3V C BE2 15 AD18 3 3V AD17 GND 16 AD21 AD20 GND AD19 17 3 3V AD23 AD22 3 3V 18 IDSELO GND IDSEL1 IDSEL2 19 AD24 C BE3 VI O IDSEL3 20 GND AD26 AD25 GND 21 AD29 5V AD28 AD27 22 LBV AD30 GND AD31 23 REQO GND REQ1 VI O 24 GND REQ2 5V GNTO 25 GNT1 VI O GNT2 GND 26 5V CLKO GND CLK1 27 CLK2 5V CLK3 GND 28 GND INTD 5V RST 29 12V INTA INTB INTC 30 12V Reserved Reserved GND 3 3V KEY Diamond Systems Corporation Hercules II EBX User Manual Page 18 The PCI board interface is design
118. ource for counter 1 0 internal see CLKFRQ1 below 1 external J8 pin 41 EXTTRIG CLKFRQI Internal clock frequency for counter 1 0 10MHz 1 100 KHz CLKFRQO Internal clock frequency for counter 0 0 10MHz 1 100 KHz Diamond Systems Corporation Hercules II EBX User Manual Page 78 Operation Control Base 13 Read Write Bit 6 5 4 3 2 1 0 Name TINTE DINTE AINTE FIFOEN SCANEN CLKSEL CLKEN TINTE Timer interrupt enable Only one of the TINTE DINTE AINTE interrupts may be enabled at a time 0 disabled 1 enabled DINTE Digital I O interrupt enable Only one of the TINTE DINTE AINTE interrupts may be enabled at a time 0 disabled 1 enabled AINTE A D interrupt enable Only one of the TINTE DINTE AINTE interrupts may be enabled at a time 0 disabled 1 enabled FIFOEN FIFO enable When the FIFOEN 1 and AINTE 1 A D interrupts occur when the FIFO reaches its programmed threshold set with FT11 0 When FIFOEN 0 and AINTE 1 A D interrupts occur according to the following conditions a if SCANEN 1 the interrupt occurs at the end of the scan and the FIFO contains all the samples of the scan b if SCANEN 0 the interrupt occurs after each single A D conversion 0 disabled 1 enabled SCANEN A D Scan enable When SCANEN 1 the A D circuit performs a complete scan of all channels between the low and high channels inclusive with each trigger 0 disabled 1
119. ouse PS 2 pin 1 Mouse clock mouse PS 2 pin 5 0 N Oli oy A WwW N Ground mouse PS 2 pin 3 Note Pins 2 and 6 on the Mini Din 6 PS 2 connectors are unused Utility Connector Connector J7 provides access to the standard button LED connections Figure 6 J7 Connector Caza Ground 1 2 Reset key Ground 3 4 ATX power button Network activity LED 5 6 3 3v standby Network 100 Mbit link 7 8 3 3v standby 5vin 9 10 DE LED Power LED 11 12 External battery Watchdog timer input 13 14 Ground Speaker 15 16 Watchdog timer output bvin 17 18 IRTX IR transmit IRRX IR receive 19 20 Ground Diamond Systems Corporation Hercules II EBX User Manual Page 20 Signal Definition Reset key Connection between Reset key and ground generate a reset condition The board remains in a reset state with non standby power rails disabled until Reset key is removed from ground ATX power button The ATX power button should be tied to ground whenever the Power Button is used The Power Button has different functionality depending on the current system mode and software operation In general the following guidelines apply e If the board is powered down toggling e tie to ground briefly then release this button turns the system on causing all non standby voltages to become active NOTE depending on the default configuration the system usually po
120. pt mode The maximum FIFO depth can be read from the Page 2 register FIFO Depth ID Base 25 This register should always return a value of 001 for the FIFO ID which means a maximum depth of 2048 samples To set the FIFO depth the FIFO Threshold should be configured by writing the depth in samples to the Page 0 registers FIFO Threshold LSB Base 8 and FIFO Threshold MSB Base 9 This setting is in units of samples where one sample is two bytes The current maximum setting is 2047 Base 8 OxFF and Base 9 0x07 Diamond Systems Corporation Hercules II EBX User Manual Page 98 If the FIFO reaches its limit as set in the two Page 0 registers FIFO Threshold Base 8 and Base 9 the next time an A D conversion occurs the FIFO Threshold flag Base 14 bit 3 is set At the same time an interrupt is generated provided FIFOEN 1 and ADINTE 1 If the FIFO overflows the Overflow flag OVF is set as the 2049th sample is taken In this case the FIFO does not accept additional data and its contents are preserved and may be read To clear the overflow condition the program must reset the FIFO by writing to the FIFORST bit in register Base 15 or a hardware reset must occur The current FIFO state can be read at any time by checking the two Page 0 FIFO depth registers FIFO Depth LSB Base 10 and FIFO Depth MSB Base 11 These registers return the number of samples currently in the FIFO and are incremented with each stored A D converter sa
121. pulled low when on board power is inactive Hercules II EBX in the standard mid range power input configuration supports a voltage range from 4 75V to 28V with some restrictions For input voltages from 4 75V to 6V measured at J29 the function of some 5V devices may be affected due to high current draw and voltage dips encountered due to current variations In this case the following behavior may be observed Diamond Systems Corporation Hercules II EBX User Manual Page 41 e Hard drives attached to the system may not power up correctly and or may reset e Hard drives CD ROMs and other high power devices may also draw too much power at these low voltages causing the system to reset External power supplies for high power devices are strongly recommended when the input supply is likely to be this low e PS 2 and USB devices may function erratically or not at all at low input voltages An external powered USB hub may alleviate this problem somewhat this includes USB keyboards mice and especially USB boot devices such as floppy drives and USB flash drives RS 232 range and functionality may be degraded e Audio speaker output power may be limited e Data acquisition accuracy may be slightly affected At input voltage ranges above 6V 6V to 28V these concerns are not present The main input voltage Vin 1s used to derive all on board voltages and power supplies via on board switching regulators The 1
122. quency and CT1 controls the duty cycle or length of the active pulse Each counter is initially loaded with the desired data and desired clock frequencies are selected for each counter CLK1 and CLKO select 10MHz 0 or 100 KHz 1 for the clock source for their respective counters Each counter contains a 24 bit load register The load registers are accessed by writing to Page 1 base 24 and Base 26 followed by a load command Base 27 bit 7 0 indicates a PWM command and may be written to at any time When ENAB is zero each counter is loaded from the load register using the load command When ENAB is one each counter is loaded from its load register on the next clock after CTO is zero When ENAB is one both counters count down at the same time While CT1 is running the PWM output is equal to the polarity selected by POL where a value of one means the output is high during the active period when CT1 is counting down and a value of zero means the output is low during the active period This causes the output pulse to occur at the start of the cycle After CT1 reaches zero it stops counting and the output switches to the opposite inactive polarity on the next clock CTO runs continuously When CTO is zero on the next clock both counters reload from their load registers and the cycle repeats CTO and CT1 may be reloaded while the PWM is running The reload data is held in a separate load register for each counter and is not loaded into the
123. r programmable Bipolar 10V or user programmable Output current 5mA max per channel e Settling time 4 S max to 1 2 LSB e Relative accuracy 1 LSB e Nonlinearity 1 LSB monotonic Digital LO e No of lines 40 32 dedicated DIO plus two configurable nibbles 4 bits each e Compatibility 3 3V and 5V logic compatible e Input voltage Logic 0 0 5V min 0 8V max Logic 1 2 0V min 5 5V max Input current 14 A max e Output voltage Logic 0 0 0V min 0 4V max Logic 1 2 4V min 3 3V max Output current Logic 0 12mA max Logic 1 8mA max e I O capacitance 10pF max Counter Timers e A D pacer clock 24 bit down counter with optional external gate e Pacer clock source 10MHz 100 kHz or external signal e General purpose 16 bit down counter with optional external gate e GP clock source 10MHz 100 KHz or external signal General e Power supply 5 VDC 5 e Current consumption 0 7A 1 1A typical e Operating temperature 40 to 85 C e Operating humidity 5 to 95 non condensing Diamond Systems Corporation Hercules II EBX User Manual Page 120 FlashDisk Module Hercules II EBX is designed to accommodate an optional solid state FlashDisk module This module contains 32MB to 4GB of solid state non volatile memory that operates like an IDE drive without requiring additional driver software support Model Capacity FD 128 XT 128MB FD 256 XT 256MB FD 512 X
124. re Only conversion to input voltage is described However you can combine both transformations into a single formula if desired To convert the A D value to the corresponding input voltage use the following formulas Conversion Formula for Bipolar Input Ranges Input voltage A D value 32768 Full scale input range Example Given Input range is 5V and A D value is 17761 Therefore Input voltage 17761 32768 5V 2 710V For a bipolar input range 1 LSB 1 32768 Full scale voltage The table below shows the relationship between A D code and input voltage for a bipolar input range VFS Full scale input voltage A D Code Input Voltage Symbolic Formula Input Voltage for 5V Range 32768 Vrs 5 0000V 32767 Vrs 1 LSB 4 9998V 1 1 LSB 0 00015V 0 0 0 0000V 1 1 LSB 0 00015V 32767 Vrs 1 LSB 4 9998V Diamond Systems Corporation Hercules II EBX User Manual Page 97 Conversion Formula for Unipolar Input Ranges Input voltage A D value 32768 65536 Full scale input range Example Given Input range is 0 5V and A D value is 17761 Therefore Input voltage 17761 32768 65536 SV 3 855V For a unipolar input range 1 LSB 1 65536 Full scale voltage The following table illustrates the relationship between A D code and input voltage for a unipolar input range VFS Full scale input voltage A D Co
125. reason the connector is not keyed to prevent certain types of cards from being inserted Rather the main EBX board allows you to select which I O voltage to use for a given PC 104 Plus card or set of cards Many PC 104 Plus cards are universal in which case the voltage setting does not matter provided that it is set to either 3 3V or 5V For cards that have a definite requirement set the VIO jumper J19 to the appropriate position According to the specification a 5V only card can be recognized by the keying position at location Al where a male pin Al cut and a female location Al is be blocked Similarly cards that are to have 3 3V power should have pin D30 cut and female location D30 plugged Cards without either keying mechanism are universal and operate with either 3 3V or 5V I O voltage Note Do not mix cards that have different I O keying requirements i e do not stack a card that has pin Al cut with a card that has pin D30 cut Diamond Systems Corporation Hercules II EBX User Manual Page 19 PS2 Mouse and Keyboard connector Connector J6 is used to connect a mouse or keyboard This connector mates with Diamond Systems Corporation cable no 698022 which terminates the cable to two PS 2 Female connectors Figure 5 J6 Connector Pa en 1 5vin keyboard PS 2 pin 4 Keyboard data keyboard PS 2 pin 1 Keyboard clock keyboard PS 2 pin 5 Ground keyboard PS 2 pin 3 5v in mouse PS 2 pin 4 Mouse data m
126. ristics Analog Input 32 single ended 16 differential inputs 16 bit resolution Analog Output Four analog outputs 12 bit resolution Digital I O 40 programmable digital I O 3 3V and 5V logic compatible Counter Timers One 24 bit counter timer for A D sampling rate control One 16 bit counter timer for user counting and timing functions Standard Peripherals The board provides the following standard system peripherals Peripheral Characteristics Serial ports Four serial ports PS 2 ports Keyboard and mouse USB ports Four USB 1 1 function ports IrDA One IrDA 1 0 IDE ports One 44 pin connector for FlashDisk One 40 pin dual channel UDMA 100 Compact flash socket Serial ports 1 and 2 are derived from the South Bridge chip Serial ports 3 and 4 are derived from an Exar 16C2850 UART chip on the ISA bus Serial ports 3 and 4 also can be BIOS selected for RS 485 or RS 232 These settings can be overridden by a jumper to select RS422 Termination resistors of 120 ohms can be jumper enabled on these two ports Console redirection feature is incorporated This feature enables keyboard input and character video output to be routed to one of the serial ports The board contains provision for mounting a solid state IDE flashdisk module with capacities ranging from 32MB and greater The module mounts onto the board using a 44 pin 2mm pitch header and a hold down mounting hole with spacer and screws A compa
127. s Il EBX Functional Block Dsgoram sss eee eee eee 10 Figure 2 Hercules Il EBX Board Layout sese 14 Figure 3 J1 and J2 ene 17 Figure 4 JS CONNOR o 18 ee UC 20 Elqure 6 JE ne 20 Figure JB CORMEGCION cia lis nel 22 FI gure 9 J9 COMME GION scsi sibarita 24 Figure 9 J10 and J11 COMEMOS A Gas eee 26 ale La a P ell e EE 26 ere UR EE eu 27 Figure 122 n L ul 28 Diamond Systems Corporation Hercules II EBX User Manual Page 5 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Figure 38 a sall eT ira lle 28 dl EE EE EE 29 HL COME sn ds a ici 30 Eh He enle Ee 31 PZOCOMMECIOM eh 34 J21 Is B e e Nee 35 J23 CONMCCIOR a bce dace ces ce eege EE 36 eE slal eT 5 3 te eege dee Ee 38 EEN eege 39 27 CONNECTOR sic id diia isis 40 J28 D e ul es Ee O SE 40 AN O 41 Ee EE 43 J36 and IS ee 44 Jumper Block J4 Default Settidgs cooommoioncreminniisanandaninerennnonenernanos 45 J4 COM3 COM4 IRQ Selection Examples sse 47 A D IRQ S lection Examples iaa 48 ATX Power Control Jumper 48 CMOS RAM Erase Jumper NENNEN 49 COM3 and COM4 RS485 Termination Jumpers 49 COM3 and COM4 RS422 Termination Jumpers 50 Jumper Block J5 Default SetfingS sese 50 COM3 COM4 I O Address Gelechon corno 51 Comp
128. s an issue under multitasking OSs such as Windows since interrupt handler latency can significant For example operating a serial port at maximum speed 115kbaud can tax the resources of a system s latency periods especially when such activity is talking place over the ISA bus which is the case with both the serial ports and with the A D FIFO An interrupt rate of greater than 10 KHz can be difficult to sustain in Windows without loosing samples The A D circuit uses the default settings of I O address range 0x240 0x25F base address 0x240 and IRQ 5 The IRQ setting can be changed if needed using jumper J4 Figure 41 shows a block diagram of the data acquisition circuit Figure 41 Data Acquisition Block Diagram HERCULES DATA ACQUISITION BLOCK DIAGRAM PROGRAMMABLE SRAM BASED FPGA GAIN AMP 32 ANALOG 2K SAMPLE INPUTS AUD FIFO 4 ANALOG OUTPUTS INTERNAL EXTERNAL CLOCK ISA BUS EXTERNAL TRIGGER WATCHDOG TIMER COUNTER TIMER O 16 BIT COUNTER TIMER A COUNTER TIMER 1 DIO PORTA DIGITAL 1 0 Kit epp LOGIC DIO PORTE Diamond Systems Corporation Hercules II EBX User Manual Page 68 Data Acquisition Circuitry I O Map I O Memory Space The data acquisition circuitry on Hercules II EBX occupies a block of 32 bytes in I O memory space The default address range for this block is 0x240 0x24F base address 0x240 The address range is a 32 byte block in ISA I O Space Within these 32 bytes the registers
129. s to 1 5Mbaud with installation of high speed drivers as a custom option The serial ports use the following default system resources Port VO Address Range IRQ COMI Ox3F8 Ox3FF COM2 Ox2F8 Ox2FF COMS 0x3E8 Ox3EF COM4 Ox2E8 0x2EF Wy Rw E The COMI and COM settings may be changed in the system BIOS Select the Advanced menu followed by O Device Configuration to modify the base address and interrupt level The settings of COM3 and COM4 UO addresses may be changed using jumpers J5 The jumper settings are auto detected by the BIOS Note The IRQ settings for COM3 and COM4 are selected using jumper J4 COM3 may use IRQ4 or IRQ9 COM4 may use IRQ3 IRQ7 or IRQ15 Once these jumper selections are made you must update the serial port IRQ settings to match these selections the IRQ settings are NOT auto detected in the way that the address settings are detected Diamond Systems Corporation Hercules II EBX User Manual Page 63 RS 232 Mode RS 232 mode is the standard mode for most PC applications COM1 and COM2 are always RS 232 only although there is a product option for RS 485 only COM3 and COM4 are RS 232 by default and the settings are managed in the BIOS using the LO Device Configuration menu RS 232 mode for all four ports provides complete signaling support including all handshaking signals and the Ring Indicate RI signal RS 485 Mode COM3 and COM4 are independently selectabl
130. sh before proceeding This method could hang your program if there is a hardware fault and the bit is stuck at 1 Better is to use a loop with a timeout int checkstatus returns O if ok 1 if error int a for i 0 i lt 10000 i if inp base 4 amp 0x80 then return 0 conversion completed return 1 conversion did not complete Read the Data from the Board Once the conversion is complete you can read the data back from the A D converter The data is a 16 bit value and can be read back as either two 8 bit bytes or one 16 bit word For 8 bit accesses the LSB must be read from the board before the MSB because the data is inserted into the board s FIFO in that order Unlike other registers on the board the A D data may only be read one time since each time a byte is read from the FIFO the FIFO internal pointer advances and the byte is no longer available Note Reading data from an empty FIFO returns unpredictable results The following pseudo code illustrates how to read and construct the 16 bit A D value with 8 bit accesses LSB inp base MSB inp base 1 Data MSB 256 LSB combine the 2 bytes into a 16 bit value Alternatively the value can be read as one 16 bit value which is preferred since this method increases overall system bandwidth while reading data from the FIFO For example Data inpw base Where the MSB and LSB are read in one access The final data is interpreted as a
131. t greater than four seconds turns the power OFF If the ATX jumper is in the ATX function is bypassed and the system powers up as soon as power is connected If the ATX jumper is removed the battery backup for CMOS and real time clock settings do not function when power is removed Diamond Systems Corporation Hercules II EBX User Manual Page 48 Erasing CMOS RAM The CMOS RAM may be cleared by removing the J4 BAT jumper shown in Figure 31 Figure 31 CMOS RAM Erase Jumper c3 Q a CT 42T 422 wT E 0000000000 0000000000 m Ort CAT 4227 CA 3 2 422 BAT ATX IN Battery connected CMOS settings retained OUT Battery not connected CMOS settings cleared and no immediate power up J4 oo 009 CA lO O C3 15 ATX INT COM With the jumper in place the CPU powers up with the default BIOS settings Follow these steps to clear the CMOS RAM Power down the CPU Remove the BAT jumper Wait a few seconds Insert the BAT jumper Power up the CPU AREAS Note Before erasing CMOS RAM write down any custom BIOS settings RS 485 Termination Settings Use jumper C3T for COM3 and C4T for COM4 for on board 120 Ohm termination of the RS 485 signal as shown in Figure 32 Figure 32 COM3 and COM4 RS4835 Termination Jumpers C3 w CT 4227 422 oo ojo ojoooo 000000000 or CAT 4227 C4 422 BAT J4 oo O ATX oo 7 c4 lo O C3 310 0 4 A ATX INT COM AD COM3 RS485 Termination 120 Ohm on board
132. t BIOS Flash e DIO Pull up Pull Down Selections e PCI VIO Voltage Setting Jumper blocks J4 JS and J19 are used for the following configuration functions Jumper Block Configuration Functions J4 Serial port and A D IRQ settings ATX power control Erasing CMOS RAM RS 485 termination settings RS 422 termination and selection J5 Serial port address setting CompactFlash IDE control Write protect BIOS flash DIO pull up pull down selections J19 PCI VI O voltage setting J35 Crisis recovery Jumper Block J4 Jumper block J4 is used for configuration of IRQ levels ATX power control RS485 termination RS422 mode and CMOS RAM Figure 27 Jumper Block J4 Default Settings BAT ATX c3 AD w 3 CT 422T 422 C3 Battery connected s Q COM3 IRQ9 d ole e Tecate 2 COM4 IRQ7 gt lojoooooojojoooooo Z DAQ IRQ5 gt lt No RS485 termination 4 F 23 or CT 4227 e No RS422 J4 Pin Label Function BAT Battery connected in battery connected Diamond Systems Corporation Hercules II EBX User Manual Page 45 J4 CMOS RAM settings preserved out battery not connected CMOS RAM settings erased ATX ATX power control in ATX like power control out standard powers up immediately 3 IRQ 3 selectable for COM3 COM4 4 IRQ 4 selectable for COM3 ADC 5 IRQ 5 selectable for ADC 7 IRQ 7 selecta
133. t RJ 45 jack for connection to standard CATS network cables For development J10 may be more useful but it is anticipated that J11 will be more useful for embedded applications for panel mount network connection Diamond Systems Corporation Hercules II EBX User Manual Page 25 Figure 9 J10 and J11 Connectors J10 J11 Seow lt PIN 1 1 Common RX Common RX TX O my A Gol N TX Note Only one of the J11 or J10 connectors should be used at a time Both connectors are NOT independent and neither will function if both are simultaneously connected Audio LO Connector Connector J12 provides audio connectivity Figure 10 J12 Connector a em Left headphone Line out Right headphone Line out Audio ground Left line input Right line input left AUX input Right AUX input Audio ground O CO N OO A Gol N power reference for microphone o Microphone input Diamond Systems Corporation Hercules II EBX User Manual Page 26 Signal Definition Headphone Line Out Line Level output capable of driving headphones which is referred to as Headphone Out in most sound documentation Line Input Line Level input which is referred to as Line In in most sound documentation Auxiliary Input Line Level input which is referred to as AUX In in most sound documentation Microphone Input Microphone level mono input phantom power provided v
134. t any external gate signal When DIOCTRI is zero Counter 1 takes its input from the on board clock generator based on the value of the Page 0 register bit CKFRQ1 located at Base 12 There is no gating and the counter runs continuously Counter may be used as either a pulse generator or a totalizer counter In pulse generator mode the output signal on pin 26 is of interest In totalizer counter mode the counter value is of interest and may be read by first latching the value and then reading it Diamond Systems Corporation Hercules II EBX User Manual Page 112 Command Sequences Diamond Systems provides driver software to control the counter timers on Hercules II EBX The information in this section is intended as a guide for programmers writing their own code instead of using the driver and to give a better understanding of the counter timer operation The Page 0 counter control register is shown for reference Bit 7 6 5 4 3 2 1 0 Name CTR LATCH GTDIS GTEN CTDIS CTEN LOAD CLEAR To Make a Counter Run Load and Enable a Counter 1 Load the desired initial value into the counter 2 Ifyou want to use the gate function enable the gate 3 Enable the counter To Read a Counter 1 Latch the counter The counter continues to operate 2 Read the value from the data registers A counter may be enabled or disabled at any time If disabled the counter ignores incoming clock edges The g
135. t connector J34 immediately under connector J17 If this socket is used it occupies the entire secondary IDE channel To set the CompactFlash card as an IDE MASTER so it is detected by the BIOS place a jumper on connector J5 as described in the following section Diamond Systems Corporation Hercules II EBX User Manual Page 43 Connectors J36 amp J37 Connectors J36 and J37 are 2x5 pin headers that were intended for connecting USB 6 7 and USB 4 5 respectively providing USB 2 0 support 480Mbps maximum transfer rates However this functionality was not implemented Figure 26 J36 and J37 Connectors PIN 1 Key pin cut 1 2 Shield USB5 7 power 3 4 USB4 6 power USB5 7 datar 5 6 USB4 6 data USB5 7 data 7 8 USB4 6 data USB5 7 power 9 10 USB4 6 power Signal Definition Shield USB4 6 power ground USB4 6 data data USB4 6 data data USB4 6 power 5V USBS 7 power ground USBS 7 data data USB5 7B data data USB5 7 power 5V Diamond Systems Corporation Hercules II EBX User Manual Page 44 Board Configuration The Hercules II EBX board has the following jumper selectable configuration options e Serial Port and A D IRQ Settings e ATX Power Control Erasing CMOS RAM RS 485 Termination Settings RS 422 Termination and Selection e Serial Port Address Setting e Optional CompactFlash IDE Control e Write Protec
136. ted to the next channel in the selected range Therefore to perform A D conversions on a group of consecutively numbered channels you do not need to write the input channel prior to each conversion For example to read from channels 0 2 write 0x00 to base 2 and 0x02 to base 3 The first conversion is on channel 0 the second is on channel 1 and the third is on channel 2 The channel counter then wraps around to the beginning so the fourth conversion is on channel 0 and so on If you are sampling the same channel repeatedly set both high and low to the same value as in the first example above On subsequent conversions you do not need to set the channel again Select the Input Range Select the input range from among the available ranges If the range is the same as for the previous A D conversion it does not need to be set again Write this value to the Page 0 register A D Input Range Control Base 4 For example for a global affects all channels 5V range gain of 2 write 0x01 to Base 4 Wait for Analog Input Circuit to Settle After writing to either the channel registers Base 2 Base 3 or the input range register Base 4 you must allow time for the analog input circuit to settle before starting an A D conversion The board has a built in 10S timer to assist with the wait period Monitor the WAIT bit at register Base 4 bit 6 When the bit is 1 the circuit is actively settling on the input signal When the bit is 0 the board is
137. tems Corporation Hercules II EBX User Manual Page 99 The following table shows the A D operating modes AINTE FIFOEN SCANE N Operation 0 0 0 Single A D conversions are triggered by write to Base 15 bit 0 ADBUSY ADSTS from A D No interrupt occurs The user program monitors ADBUSY and reads A D data when it goes low A D Scans are triggered by write to Base 15 bit 0 All channels between LOW and HIGH are sampled ADBUSY goes high at the first ADSTS high pulse and stays high until the last ADSTS pulse goes low No interrupt occurs The user program monitors WAIT and reads the A D data when it goes low Same operation as case 000 above The FIFO is not used in this case Same operation as case 001 above The FIFO is not used in this case Single A D conversions are triggered by the source selected with CLKSEL ADBUSY ADSTS INT goes high after each conversion is done when ADBUSY goes low The interrupt routine reads one A D sample each time it runs A D Scans are triggered by the source selected with CLKSEL ADBUSY goes high at the first ADSTS high pulse and stays high until the last ADSTS pulse goes low INT goes high after the last ADBUSY pulse goes low when WAIT goes low The interrupt routine reads out one entire A D scan each time it runs Single A D conversions are triggered by the source selected with CLKSEL ADBUSY ADSTS A D interrupt occurs when the FIFO reaches its pr
138. the BIOS Refer the the BIOS section of this document for a description of the BIOS recovery steps Diamond Systems Corporation Hercules II EBX User Manual Page 57 Flash Memory Hercules II EBX contains a 2Mbyte 16 bit wide flash memory chip for storage of BIOS and other system configuration data Backup Battery Hercules II EBX contains an integrated RTC CMOS RAM backup battery The battery is located adjacent to the PC 104 bus connector J1 and within the PC 104 outline This battery has a capacity of 120mAH and will last over three years in power off state There are also two connection points for alternative external battery power sources e Utility header J7 pin 12 V and pin 14 ground e External battery header J20 The external battery should be 3 3 6V and should be able to provide a continuous supply with a nominal 2uA continuous current drain and a peak short term drain of ImA An external battery is only recommended where concern for on board CMOS settings and or time accuracy make such redundancy worthwhile The on board battery is activated for the first time during initial factory configuration and test System Reset Hercules II EBX contains a chip to control system reset operation Reset occurs under the following conditions e User causes reset with a ground contact on the Reset input e Input voltage drops below 4 75V Over current condition on output power line The ISA Reset signal is an active high
139. the optimum FIFO threshold for each application The table on the next page describes the board s behavior for each of the four possible combinations of AINTE and SCANEN values The interrupt software behavior describes the operation of the Universal Driver software If you write your own software or interrupt routine you should conform to the described behavior for optimum results Hercules II A D Operating Modes This section references the control bits and values listed in the table below Bit Name Bit Register Location LOW Page 0 Base 2 5 bit number 0 31 HIGH Page 0 Base 3 5 bit number 0 31 WAIT Page 0 Base 4 bit 6 ADBUSY Page 0 Base 4 bit 7 FIFO threshold Page 0 Base 8 LSB and Base 9 MSB CLKEN Page 0 Base 13 bit 0 CLKSEL Page 0 Base 13 bit 1 SCANEN Page 0 Base 13 bit 2 AINTE Page 0 Base 13 bit 4 ADSTS Signal from A D converter called BUSY at A D output There are eight operating modes to consider for A D conversions using FIFOEN SCANEN and AINTE In all modes at the end of an AD conversion A D data is latched into the FIFO Data are read from the FIFO with two read operations nominally from Base 0 and Base 1 However reading from either address results in the same byte being read from the FIFO so the program can actually perform two reads from the same address to get the A D data For all modes where AINTE 1 CLKEN must also be set to 1 Diamond Sys
140. the signal 3 FPGA programming updates These Pull up down resistors also affect signal outputs during the period when the FPGA is being loaded or re loaded During an FPGA update the FPGA will briefly Diamond Systems Corporation Hercules II EBX User Manual Page 110 tri state all signals during this period the pull up down resistors will be the only current source coming from the board through the DIO signals As an example to set all standard DIO signals to zero by default and to allow DIO handshaking to be configured such that the DIOLATCH signal is pulled high for normal handshaking operation default follow these steps e Place a jumper across J5 pins 3 5 setting normal DIOs to zero when not driven e Place a jumper across J5 pins 2 4 setting DIO E7 E4 to one when not driven including DIOLATCH which is present on DIO E6 pin Diamond Systems Corporation Hercules II EBX User Manual Page 111 Counter Timer Operation Hercules II EBX contains two counter timers that provide various timing functions on the board for A D timing and user functions These counters are controlled with registers in the on board data acquisition controller FPGA Counter 0 A D Sample Control The first counter Counter 0 is a 24 bit divide by n counter used for controlling A D sampling The counter has an internal clock input an external gate input Gate 0 alternate function for DIO Channel E bit 4 and a dedicated output TOUT 0
141. ting at an external source Resolution The resolution is the smallest possible change in output voltage For a 12 bit DAC the resolution is 1 2 or 1 4096 of the full scale output range This smallest change results from an increase or decrease of in the D A code so this change is referred to as least significant bit 1 LSB The value of this LSB is calculated as follows 1 LSB Output voltage range 4096 Example For Output range 0 10V Output voltage range 10V 0V 10V Therefore 1 LSB 10V 4096 2 44mV Example For Output range 10V Output voltage range 10V 10V 20V Therefore 1 LSB 20V 4096 4 88mV Output Range Selection The Page 0 register Analog Configuration Base 1 is used to select the DAC output range The DACs can be configured for 0 10V or 10V D A Conversion Formulas and Tables The formulas below explain how to convert between D A codes and output voltages Diamond Systems Corporation Hercules II EBX User Manual Page 101 D A Conversion Formulas for Unipolar Output Ranges Output voltage D A code 4096 Reference voltage D A code Output voltage Reference voltage 4096 Example For Output range in unipolar mode 0 10V and Full scale range 10V 0V 10V if Desired output voltage 2 000V D A code 2 000V 10V 4096 819 2 gt 819 Note the output code is always an integer For the unipolar output range 0 10V 1 LSB 1 40
142. tionality for details on PWM functions for these pins when DIOCTRO 1 DIOCTRI controls the special functions for DIO E7 E4 J8 Pin DIOCTRI Number 0 1 37 DIO E4 GATEO 38 DIO ES DIOLATCH 39 DIO E6 DOUT A0 DIO E7 GATE See the sections on counter timer operation and DIO handshaking mode for details on these special functions which are available only when DIOCTRI is set to one DIO Handshaking Operation Normally the DIO data is transferred through the data registers with each read If a handshaking method is desired two signals are provided to allow this type of transfer e DIOLATCH e Input to system low latches all input data high passes data through directly e Normally pulled up passes all DIO data through without handshaking affected by DIO pull ups e Falling edge generates IRQ when DINTE Base 13 bit 5 is set to one e Present on DIO Header J8 pin 39 NOTE Only accessible when DIOCTR is set to one e ACK e Output from system driven high when DIOLATCH transitions from high to low ACK is driven low as soon as latched data is read into the system e Present on DIO Header J8 pin 43 The handshaking sequence looks similar to the illustration below Diamond Systems Corporation Hercules II EBX User Manual Page 109 Figure 42 DIOLATCH ACK Handshaking Sequence DIO Pull up Down Settings IRQ Software Responds to DINT Reads DIO Data a Respondsto
143. to this register This bit enables shadowing this RESET PAGE A D LSB Base 0 Read register with another device at the same address Reset the entire data acquisition circuit After a reset the following conditions are true e Digital I O ports are set to input mode and all output registers are cleared to 0 e A D channel registers and range settings are cleared to zero except for the Analog Configuration Register Base 1 which is set to 0x04 e D A channels are cleared to mid scale or zero scale depending on the board jumper setting e Counter timers are disabled and counter registers are cleared to zero e Watchdog timer is disabled and timer registers are cleared to zero e FIFO is reset causing all contents to be lost and threshold is set to 1024 samples e The internal channel gain table is reset to all zeros Select page 0 Main features page 1 Extended features page 2 ID page 3 Copyright notice page Bit 7 6 5 4 3 2 1 0 Name AD7 AD6 ADS AD4 AD3 AD2 ADI ADO AD7 ADO A D LSB data The A D data must be read LSB first followed by MSB Analog Configuration Base 1 Write Bit 7 6 5 4 3 2 1 0 Name DABU SEDIFF ADBU DABU D A output range 0 bipolar 1 unipolar Default on reset is unipolar mode SEDIFF A D mode 0 single ended 1 differential ADBU A D input range 0 bipolar 1 unipolar
144. ts The analog inputs can be configured for unipolar positive input voltages only or bipolar both negative and positive input voltages Analog Output Configuration The four analog outputs can also be configured for unipolar positive voltages only or bipolar both negative and positive output voltages In unipolar mode the outputs range between 0 10V In bipolar mode the outputs range between 10V When the board powers up or is reset the analog outputs are also reset The D A powers up in unipolar mode with zero scale output OV default Diamond Systems Corporation Hercules II EBX User Manual Page 93 Analog to Digital Input Ranges and Resolution Overview Hercules II EBX uses a 16 bit A D converter The full range of numerical values for a 16 bit number is 0 65535 However the A D converter uses twos complement notation so the A D value is interpreted as a signed integer ranging from 32768 to 32767 The smallest change in input voltage that can be detected is 1 2 or 1 65536 of the full scale input range This smallest change results in an increase or decrease of one in the A D code and is referred to as one Least Significant Bit 1 LSB The analog inputs on Hercules II EBX have three configuration options e Single ended or differential mode e Unipolar or bipolar mode e Input range gain The single ended differential configuration unipolar bipolar configuration and the input range selection are all ha
145. ules II EBX User Manual Page 28 1 5v switched 2 Ground 3 Ground 4 12v switched Signal Definition 5v This is provided by the on board power supply derived from the input power It is switched off when the board is powered down 12v This is provided by the 12V input pin on the main power connector It is switched off when the board is powered down Ground These are OV ground references for the power output voltage rails above Diamond Systems Corporation cable no 698006 mates with J15 This cable provides a standard full size power connector for a hard drive or CD ROM drive and a standard miniature power connector for a floppy drive Primary IDE Connector Connector J16 is used for the primary IDE connection Figure 14 J16 Connector ILLL TRR PIN 1 Leseccesccscessceseosess Reset Ground D7 D8 D6 D9 D5 D10 D4 D11 D3 D12 D2 D13 D1 D14 DO D15 Ground Key not used DRQ Ground IDEIOW Ground IDEIOR Ground IORDY Ground DACK Ground IRQ14 Pulled low for 16 bit operation Diamond Systems Corporation Hercules II EBX User Manual Page 29 A1 33 34 Not used AO 35 36 A2 CS0 37 38 CA1 LED 39 40 Ground 5v 41 42 5v Ground 43 44 Not used Connector J16 mates with Diamond Systems Corporation cable no 698004 and may be used to connect up to two IDE drives hard
146. ve while the system is still receiving power to its standby voltage sources Speaker The signal on the Speaker pin is referenced to 5V out Connect a speaker between this pin and 5V out Diamond Systems Corporation Hercules II EBX User Manual Page 21 Signal Definition IRTX The IR Receive Transmit pins are used for IrDA functions They should be connected to an external IrDA transceiver when needed IR communications require that COM PORT 2 be set for IR mode for the IR serial port functionality to be active External battery The External battery pin is an additional power connection for an external 3 power source in addition to connector J20 Note that these two sources are not directly connected and may both be driven by separate external battery power sources Typical power draw from this battery source averages under 4uA of current Watchdog timer The Watchdog input output signals are signals are used in conjunction with the on board FPGA and Data Acquisition circuitry to provide full watchdog timer functionality Data Acquisition Digital I O Connector Hercules II EBX includes a 50 pin header J8 for all digital data acquisition I O This header is located on the right side of the board Pin 1 is the lower right pin as marked on the board Diamond Systems Corporation cable no C 50 18 provides a standard 50 pin connector at each end and mates with this header F
147. vides two standard USB type A jacks in a panel mount housing Note USB1 described below shares the J22 USB circuitry Do not connect USB devices to both USB1 on J23 and J22 Diamond Systems Corporation Hercules II EBX User Manual Page 35 USB1 Connector Connector J23 provides a single quick and simple on board USB connection for simple test and development without requiring an additional cable Figure 19 J23 Connector 123 4 1 power 2 data 3 data 4 power Signal Definition power ground data data data data power 5V Note USB1 shares the J22 USB circuitry Do not connect USB devices to both USB1 and J22 Diamond Systems Corporation Hercules II EBX User Manual Page 36 LCD Panel LVDS Interface Connector Connector J24 provides access to the internal LVDS LCD display drivers Note that the LCD also requires the backlight to be connected J28 below to function correctly Ground 1 2 Ground Y clock 3 4 Z clock Y clock 5 6 Z clock Ground 7 8 Ground Y data 0 9 10 Z data 0 Y data 0 11 12 Z data 0 Ground 13 14 Ground Y data 2 15 16 Z data 1 Y data 2 17 18 Z data 1 Ground 19 20 Ground Y data 1 21 22 Z data 2 Y data 1 23 24 Z data 2 Ground 25 26 Ground VDD LDC display 27 28 VDD LCD display VDD LDC display 29 30 VDD LCD display Signal Definition Y
148. ware that an increase in this memory size will result in a decrease in overall available system memory The AGP rate affects internal video accesses and does not affect any external bus speeds Expansion Bus Performance is an adjustment to allow an increase in ISA I O Access speeds For applications where ISA I O accesses may be a limiting factor this performance may be increased to Accelerated Be aware that increasing these timings may adversely affect system stability with external add on PC 104 cards This setting has no direct affect on PCI or memory speeds and it only affects ISA PC 104 devices It is best to leave this parameter set to Normal if there are no ISA I O Performance issues On the Advanced screen the following settings should be retained e Installed O S Win98 e Large Disk Access Mode DOS On the On Chip Multifunction Device screen the following settings should be retained USB Device Enabled e Legacy Audio Disabled Legacy Audio only affects DOS based applications when used with the VIA supported DOS Drivers Enabling this setting requires system I O IRQ and DMA resources It is strongly recommended that this setting be left Disabled On the PCI and ISA Configuration pages from the Advanced screen the following setting should be retained e PCI IRQ Level 1 4 Autoselect for all e PCI PNP ISA UMB Region Exclusion Available for all The Power Management Screen is only be in effect when under DOS Otherwise the
149. wers up immediately as power is applied e Ifthe system is currently powered up and active toggling i e tie to ground briefly then release this button causes a system power down event to be initiated Typically this powers down the monitor hard drive and any other non essential functions The system must be operating and the software executing normally for this function Under Windows and some other OSs this power down event may cause the system to shut down Typically this is software configurable via an option setting for the given OS e Ifthe system is currently powered up and active holding this button for four seconds causes a forced system shutdown This is a hardware power down which can be detrimental to many OSs due to the fact that they are not given adequate time to initiate shut down sequencing This operation should only be used in critical circumstances such as when the system itself is locked due to system instability or a software crash After powering the system down in this manner the system remains powered down until the power button is toggled tied to ground again and released When ATX is enabled a momentary contact between this pin and Ground causes the CPU to turn on and a contact of four seconds or longer generates a power shutdown ATX power control is enabled using a jumper on jumper block J4 5v in The 5v pin is a switched power pin that is turned on and off with either the ATX power switch or the 5v
150. where ChannelNumber is 0 3 The D A data is held until a zero is written to the simultaneous update bit at which time all of the latched data is updated at the same time If data was previously latched with the simultaneous update bit set to one and the data for the last channel involved in the simultaneous update was written to Base 6 and Base 7 the final channel selection operates the same as a transparent mode write Diamond Systems Corporation Hercules II EBX User Manual Page 104 outp Base 5 ChannelNumber where ChannelNumber is 0 3 This code sends all of the latched data to the D A The latched data is now enabled through the D A and the analog outputs begin the transition to the selected values Wait for the D A to Update Writing the channel number to Base 5 regardless of the state of the simultaneous update bit starts the D A update process for the selected channel s The update process requires approximately 30 microseconds to transmit the data to the D A chip and update the D A circuit in the chip if the data is to be passed through immediately During this period no attempt should be made to write to any other channel in the D A using addresses Base 6 or Base 7 The Page 0 register status bit DABUSY Base 4 bit 5 indicates if the D A is busy updating 1 or idle 0 After writing to the D A monitor the DABUSY bit until it is zero before continuing to the next D A operation The time required to transfer data for
151. y disk into the USB floppy drive and start restart the system 4 Install any drivers needed Notes 1 For DOS Ethernet set Operating System to other in the BIOS 2 DOS Sound emulation is currently not functional CompactFlash Compatibility Issues Under DOS CompactFlash is incompatible with some utilities under some versions of DOS e CompactFlash with ROM DOS The ROM DOS FDISK utility does not work with CompactFlash drives The ROM DOS FORMAT and SYS do work however If CompactFlash already has a DOS partition the ROM DOS utilities can be used to FORMAT the CompactFlash and install operating system files on CompactFlash e CompactFlash with FreeDOS The FreeDOS FDISK or FORMAT utility do not work with CompactFlash However the FreeDOS SYS utility is functional with CompactFlash e CompactFlash with MS DOS The MS DOS FDISK FORMAT and SYS utilities are not functional when used with CompactFlash The MS DOS operating system files cannot be installed on CompactFlash flash Diamond Systems Corporation Hercules II EBX User Manual Page 67 Data Acquisition Circuit Hercules II EBX contains a data acquisition subsystem consisting of digital I O DIO watchdog timer WDC counter timer pulse width modulation PWM and optional analog I O features The features of a board that includes data acquisition are equivalent to a complete PC 104 add on data acquisition module The A D section includes a 16 bit A D converter 32 input c
152. ying locations 1 27 of the chip and contains a copyright notice in ASCII format In page 3 the RESET command and page register at base 0 are accessible so the chip may be reset or the page changed VO Register Map Bit Assignments Note In the tables below blank bits are not used Writes to a blank bit have no effect Reads of a blank bit return the value zero Page 0 Write Base 7 6 5 4 3 2 1 0 0 HOLDOFF RESET p lt E PAGE PAGEO 1 E 3 E s S DABU SEDIFF ADBU 2 S p L4 L3 L2 LI LO 3 x E H4 H3 H2 HI HO 4 LDAD 2 c Gl G0 5 SU DACH DACHO 6 DA7 DA6 DAS DA4 DA3 DA2 DAI DAO 7 2 S DAIL DA10 DA9 DA8 8 FT7 FT6 FT5 FT4 FT3 FT2 FTI FTO 9 E 2 d o FT11 FT10 FT9 FT8 10 f 11 12 LED SINGLE DIOCTRI DIOCTRO SCINT CLKSRC1 CLKFRQ1 CLQFRQO Diamond Systems Corporation Hercules II EBX User Manual Page 70 Base 7 6 5 4 3 2 1 0 13 a TINTE DINTE AINTE FIFOEN SCANEN CLKSEL CLKEN 14 15 x gt FIFORST DARST CLRT CLRD CLRA ADSTART 16 DIOA7 DIOA6 DIOAS DIOA4 DIOA3 DIOA2 DIOA1 DIOAO 17 DIOB7 DIOB6 DIOBS5 DIOB4 DIOB3 DIOB2 DIOB1 DIOBO 18 DIOC7 DIOC6 DIOCS DIOC4 DIOC3 DIOC2 DIOC1 DIOCO 19 DIOD7 DIOD6 DIODS DIOD4 DIOD3 DIOD2 DIODI DIODO 20 DIOE7 DIOE6 DIOES DIOE4 DIOE3 DIO

Hercules II-EBX User Manual - Diamond Systems Corporation

Contents

Download Pdf Manuals

Related Search

Related Contents