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Prometheus Manual v1.47 - Diamond Systems Corporation

1. 00 N OQ on BR Go ho gt Input power for Prometheus may be supplied either through J11 from an external supply or directly through the PC 104 bus power pins if a PC 104 power supply is used with the CPU Prometheus requires only 5VDC input power to operate All other required voltages are generated on board with miniature switching regulators However since the PC 104 bus includes pins for 5V and 12V these voltages may be supplied through J11 if 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 PC 104 bus and are not controlled by the ATX function Make sure that the power supply used has enough current capacity to drive your system The Prometheus CPU requires up to 1 1A on the 5V line If you have a disk drive or other modules connected you need additional power In particular many disk drives need extra current during startup If your system fails to boot properly or if disk accesses do not work properly the first thing to check is the power supply voltage level Many boot up problems are caused simply by insufficient voltage due to excess current draw on the 5V supply Multiple 5V and Ground pins are provided for extra current carrying capacity if needed Each pin is rated at 3A max 15W For the Prometheus CPU the panel I O board and a video board 3A is sufficient so 5 and Ground requi
2. 0000 q Oz oo FIX E 50 OO Kee EE Jmp 1 to 3 and 2 to 4 for normal syne o Jmp 3 to 5 ond 4 to 6 for reverse sync 652 E 967 ee oa a oo joo COM1 COM2 SE oo o oo SC OO o o o OO o o g OO oto oo eos 3 S COM3 C 2001 o S o DIAMOND SYSTEMS CORP o oo oo 908000000 us Power PNL Z32 E PNL Z32 EA 1 O Panel Board for Prometheus oo o00000000 K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 64 23 2 Panel Board I O Connectors The I O connectors below are located on the top side of the board and are for connection to external equipment Location Type Description J2 DB 9M Serial port COM J4 DB 9M Serial port COM2 J6 DB 9M Serial port COM3 J7 DB 9M Serial port COM4 J10 DB 25F Parallel port LPT 1 J11 2 5mm 5VDC input power tip ring J13 DB 9M Multi UO power connector J14 MD 6 PS 2 mouse connector J15 MD 6 PS 2 keyboard connector J18 RJ 45 Ethernet connector J21 IDC 50 Data acquisition connector Model PNL Z32 EA only J22 USBA USB connector J23 USB A USB connector J27 DB 15F Video VGA connector Panel Board Top Side External Use I O Connectors Additional connectors are on the bottom side and are intended for use with other boards and circuitry inside the enclosure such as a video board or DC DC power supply Location Type Description J3 Pin header Speaker and miscellaneous funct
3. 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 a Write the data to the counter Break the load value into 3 bytes low middle and high two bytes for counter 1 Then write the bytes to the data registers in any sequence Counter 0 Counter 1 outp base 12 low outp base 12 low outp base 13 middle outp base 13 high outp base 14 high b Load the counter Counter 0 Counter 1 outp base 15 0x02 outp base 15 0x82 c Enable the gate if desired Counter 0 Counter 1 outp base 15 0x10 outp base 15 0x90 d Enable the counter Counter 0 Counter 1 outp base 15 0x04 outp base 15 0x84 d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 60 Reading a counter a Latch the counter Counter 0 Counter 1 outp base 15 0x40 outp base 15 0xC0 b 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 1 2 low inp base 1 2 middle inp base 13 high inp base 13 high inp base 14 c Assemble the bytes into the complete counter value Counter 0 Counter 1 val high 2416 middle 2 8 low val high 248 low Enabling the counter gate Counter 0 Counter 1 outp base 15 0x10 outp base 15 0x90 The counter will run only when the gate input is high Disabling th
4. PRIMARY PRIMARY i SECONDARY H SIDE SIDE SIDE H OCONNECTORS MAYOVERHANG _ GE gt WITHINTHESE REGIONS INCLUDES MATING CONNECTORS r SE H ae H H 0 100 TYP 0 100 TYP 0 025 SQ TYP gt gt lt 4 15 B 1E p J25 sad 0 435 0 420 0 0 325 0 250 0 950 1 050 k OPTION 1 OPTION 2 NOTE I O MATING CONNECTORS MAY NOT Stackthrough Bus Non Stackthrough Bus EXTEND OUTSIDE THESE BOUNDARIES K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 74
5. 222222 aaa aaa anni 28 9 1 BOOTING TO DOS FROM A FLOPPY DRIVE uiiiaiiaaaaaaaaaaasaanasasaasasaanasaaaasanaanasaanananaananaaaanaaaanan 28 9 2 INSTALLING AN OS FROM A FLOPPY DRIVE ONTO A FLASHDISK Mon 28 CONTINUED ON NEXT PAGE K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 2 CONTINUED FROM PREVIOUS PAGE 10 DATA ACQUISITION CIRCUIT cies cece seceeesceseseeeseeneesecesesoesesneeseseeessaesesneeeeeneneaes 30 11 DATA ACQUISITION CIRCUITRY UO MAP aaaaaaaaaaaaa na na nnannnnnnnnnnunnnnnnnannnannnannnannnanunaa 31 11 2 DATA ACQUISITION CIRCUIT REGISTER Map 32 12 DATA ACQUISITION CIRCUIT CONFIGURATION aaaaaaaaaaaaa na n annnannnannnannnannnannnannnan 45 13 ANALOG INPUT RANGES AND RESOLUTION aaaaaaaaaaaaaan a na nnannnnnnnnannnannnannnannnannnannnan 47 13 1 OVERVIEW vera seele ege 47 13 2 INPUT RANGE GELECTION ttrt ntet tt tt EE EAEE SE EEEE EAENAE AENEA EAER EEEE EEEn ESEE EEE 47 13 3 INPUT RANGE TApLE EEAAESE EEEE EAENEE EEEE EEEEER EEEE EE EEES EErEE EEn 47 14 PERFORMING AN A D CONVERSION a aaaaaaaaaa na n nananunannnannnannnannnannnannnannnannnannnannnan 48 15 A D SCAN INTERRUPT AND FIFO OPERATION ssnnnnnnnsnnnsnnnsnnnennnrnnnrnnnrnnnnnnnnnnnnnnnnnne 51 16 ANALOG OUTPUT RANGES AND RESOLUT ION nsnnsnnnsnnnsnnnrnnnrnnnrnnnrnnnnnnnrnnnrnnnnnnn 53 17 GENERATING AN ANALOG OUTPUT aaaaaaaaaaaaaana n ananannnananannnannnannaannn
6. The signal on this pin is referenced to 5V Out Connect a speaker between this pin and 5V Out Referenced to 5V Out Does not require a series resistor Connect LED directly between this pin and 5V Out Referenced to 5V Out Does not require a series resistor Connect LED directly between this pin and 5V Out Connection between this pin and Ground will generate a Reset condition When ATX is enabled a momentary contact between this pin and Ground causes the CPU to turn on and a contact of 4 seconds or longer will generate a power shutdown ATX power control is enabled with a jumper on jumper block J10 see page 16 When this pin is connected to Ground the keyboard and mouse inputs are ignored IrDA pins Can be connected directly to an IrDA transceiver Connected to 5V input power on J11 see page 10 This pin is not switched by ATX control This pin is provided for auxiliary use such as front panel lighting or other circuitry at the user s discretion Connector Part Numbers J3 plug on CPU board 3M Robinson Nugent no P50E 080P1 S1 TG Both cable mount and board mount connectors are available to mate with J3 Cable mount socket Board mount socket 3M Robinson Nugent no P50E 080S TG 3M Robinson Nugent no P50 080S R1 TG d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 9 4 2 Input Power J11 5V In Ground Ground 12V In Ground 5V In 12V In 5V In ATX Control
7. After writing to either the channel register Base 2 or the input range register Base 3 you must allow time for the analog input circuit to settle before starting an A D conversion The board has a built in 10uS timer to assist with the wait period Monitor the WAIT bit at Base 3 bit 5 When is 1 the circuit is actively settling on the input signal When it is 0 the board is ready to perform A D conversions d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 48 14 4 Perform an A D conversion on the current channel After the above steps are completed start the A D conversion by writing to Base 0 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 outp base 0x80 14 5 Wait for the conversion to finish The A D converter chip takes up to 5 microseconds to complete one A D conversion 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 to indicate whether it is busy or idle This bit can be read back as bit 7 in the status register at Base 3 When the A D converter is busy performin
8. Chip Select Function Mode Address Range UO Size Window Size 0 Not used 1 COM3 R W 3E8 3EF 8 bits 8 bytes 2 COM4 R W 2E8 2EF 8 bits 8 bytes Data Acquisition R W 280 28F 8 bits 16 bytes These chip select settings should not be modified unless you need to change the addresses of one or more of the affected circuits for a special system configuration and are fully aware of the impact of your changes K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 18 6 3 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 Prometheus supports this operation by enabling keyboard input and character output onto a serial port console redirection A serial port on another PC can be connected to the serial port on Prometheus 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 Prometheus BIOS setting enables console redirection onto COM2 during POST power on self test The communication parameters are 115 2Kbaud N 8 1 When the CPU is powered up the BIOS will output POST information to COM2 and monitor it for any keyboard activity Y
9. DIAMOND SYSTEMS CORPORATION PROMETHEUS High Integration PC 104 CPU with Ethernet and Data Acquisition Models PR Z32 E ST PR Z32 EA ST User Manual V1 47 ARBAI EEL R Copyright 2002 2004 Diamond Systems Corporation 8430 D Central Ave Newark CA 94560 Tel 510 456 7800 www diamondsystems com PROMETHEUS High Integration PC 104 CPU with Ethernet and Data Acquisition TABLE OF CONTENTS 1 DESCRIPTION TTT 4 2 FEATURES sssiscisacesiccnsasscusnnsanaacanaaseutannanexapsacccasanncetuanaianseniasensuensaanceednsdeiuanniersanadtaiuansoessusianas 5 3 PROMETHEUS BOARD DRAWING aaaaaaaaaaaaaaaana nannnananunanunanunanunanunanunanunanunanunnnannnannnannaan 7 4 ee 8 5 JUMPER CONFIGURATION 121 22 24221 2200 dad vasnkav untlssivadsganvndkasb vannastvnaskasttuniaasinunnkngsi 16 6 SYSTEM FEATURES 12 1 viss da Eegeregie EA EE ee ENEE Ee 18 7 BICHER ENEE ees 22 FA EIN Visas sace onsets ties saeetieutsiedy vecetieantdlinysiteadeaadaasartiersstaviniuarensuenies 22 7 2 BIOS DOWNLOAD RECOVERY aaaaiaiaiaaaaaaaiaaaasaanasanaaaanaananunaananannananaanannananannannnnananannananaanan 23 7 3 DISK ON BOARD FLASH FILE STORAGE aaiiiaiiaaaaaaaaaaaaaanasanaasasaananunaananaananaanananaananaanananaanan 24 8 SYSTEM E 26 8 1 ETHERNET EE 26 8 2 SERIAL PORTS uraninito anii oaa a a a a dee r 27 8 3 PARALLEL PORT zinian enidan andea aai E A a ia Vila gl A A EAA 27 9 NOTES ON OPERATING SYSTEMS AND BOOTING PROCEDURES
10. Not connected 8 Not connected 8 PCB shield 9 Blue Return Not connected 10 Ground Not connected 11 Ground Not connected 12 H Sync 7 H Sync 13 Not connected Not connected 14 V Sync 9 V Sync 15 16 Not connected Not connected To connect PL5 directly to a VGA monitor with a high density DB15 connector use the multicolor ribbon cable supplied with the video board This cable has the following pinout PL5 pin no DB15F pin no Signal 1 1 Red 2 6 Red Return 3 2 Green 4 4 No Function 5 3 Blue 6 7 Green Return 7 9 No Function 8 11 No Function 9 8 Blue Return 10 5 Ground 11 10 Ground 12 13 H Sync 13 12 No Function 14 14 V Sync 15 15 No Function 16 No Wire K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 71 27 MOUNTING PROMETHEUS ON A BASEBOARD Prometheus is designed to allow installation upside down onto a custom baseboard The CPU board may be thought of as a macro component when used in this way All the key I O headers on the board face up and are at an even height allowing the board to be turned over and mounted onto a base board A mechanical drawing showing locations of mating connectors on the baseboard is shown on the following page The board to board mounting height for this application is 14mm 551 Spacers for this application can be purchased from many suppliers of metric hardware Standard spacers
11. a separate power cable is required The power may be provided either from one of the two 4 pin headers on the extender board or from the Auxiliary Power Out connector J12 on the Prometheus CPU Use DSC cable no 6981006 for the power connection Attach a floppy drive to J7 on the Prometheus using DSC cable no 6981008 and provide power to it DSC cable 6981006 can be used for the floppy drive power Install a bootable floppy disk into the floppy drive Power up the system Make sure the BIOS is configured to boot from floppy Press F2 to enter BIOS when booting and go to the Boot screen to make this configuration Make sure the I O chip selects are disabled as described in section 9 1 Once the system is booted switch to drive D the hard disk with the OS on it and change to the DOS directory If necessary run FDISK and perform the following steps a Remove all partitions on the flashdisk module b Create a primary DOS partition on the flashdisk module c Make the DOS partition the active partition d Save your changes and exit Boot the system again from the floppy disk Switch to the hard disk D and change to the DOS directory Format the flashdisk module using FORMAT C S Copy the operating system files and any other needed files onto the flashdisk module Power down the system Remove the hard disk and extender board and install the flashdisk module directly onto the IDE connector J8 on the Prometheus CPU Power u
12. 104 spacers d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 68 24 FLASH DISK PROGRAMMER BOARD The Flash Disk 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 J1 connects to the IDE connector on Prometheus with a 44 pin ribbon cable Diamond Systems part no 6981004 Both 40 pin 1 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 Flash Disk Programmer Board comes with a 44 wire cable no DSC no 6981004 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 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 com
13. 20 and the ZFx86 Training Manual included in the Documents folder of the Prometheus CD 1 Ground 2 Watchdog In 3 Watchdog Out J9 Pinout 23 8 Installation The panel board includes a hardware kit containing spacers of various sizes along with screws and nuts There are three sizes of spacers 7mm 0 276 14mm 0 551 and 0 600 All hardware for assembling the stack and mounting it to the enclosure front panel is 4 40 thread The Pandora enclosure includes an additional hardware kit of 6 32 screws for assembling the front and back panels to the enclosure body Refer to the assembly drawings provided with the panel board for proper assembly of the PC 104 stack and Pandora enclosure The panel board connects to the following headers on the Prometheus CPU J3 Main I O J4 Ethernet J5 USB J6 Watchdog timer J11 Input power J14 Data acquisition EA models To install the panel board onto the Prometheus CPU board first remove any jumpers on J6 of the CPU upper right corner since these will interfere with the mating header on the bottom of the panel board Insert the four 7mm male female hex spacers into the holes on top of the panel board and fix them in place with the four 14mm female female hex spacers below Then plug the panel board onto the connectors of the CPU board being careful to align all the connectors properly Note that there are mating connectors on all 4 edges of the board for the EA a
14. 4 3 2 1 0 8 PA7 PA6 PA5 PA4 PA3 PA2 PA1 PAO 9 PB7 PB6 PB5 PB4 PB3 PB2 PB1 PBO 10 PC7 PC6 PC5 PC4 PC3 PC2 PC1 PCO 11 DIOCTR DIRA DIRCH DIRB DIRCL K DIAMOND SYSTEMS CORPORATION The digital I O lines are located at pins 1 through 24 on the I O header J14 see page 14 They are 3 3V and 5V logic compatible Each output is capable of supplying 8mA in logic 1 state and 12mA in logic 0 state See the specifications on page 62 for more detail DIRA DIRB DIRCH and DIRCL control the direction of ports A B C4 7 and C0 3 A 0 means output and a 1 means input All ports power up to input mode and the output registers are cleared to zero When a port direction is changed to output its output register is cleared to zero When a port is in output mode its value can be read back DIOCTR is used to control the function of lines C7 C4 on the I O connector When DIOCTR 1 the lines are C7 C4 When DIOCTR 0 these lines are counter timer lines Pin No DIOCTR 1 DIOCTR 0 Pin direction for DIOCTR 0 21 C4 Gate 0 Input 22 C5 Gate 1 Input 23 C6 Clk 1 Input 24 C7 Out 0 Output Prometheus CPU User Manual V1 47 Page 58 20 COUNTER TIMER OPERATION Prometheus model PR Z32 EA 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 See pages 38 and 43 for informatio
15. 4 seconds turns the power off If the ATX jumper is in the ATX function is bypassed and the system will power up as soon as power is connected Erasing CMOS RAM The CMOS RAM may be cleared with a jumper as shown on the next page This will cause the CPU to power up with the default BIOS settings To clear the CMOS RAM power down the CPU install the jumper as shown return it to its default position and then power up again Before erasing CMOS RAM write down any custom BIOS settings you have made Default Settings COMA IRQ4 Default CcOM4 IRQS Settings AD IRQS Standard ISA Bus wait state Backup bottery enabled ATX bypass K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 16 The different configurations for J10 are shown below Each illustration shows only the jumper of interest An asterisk indicates the default setting 321 obo 0000 CO000000 COM4 ROS 3271 DOoOO0O OD ooo00000 COM4 RQ15 321 O0000000 00000 o Sea 321 COM RQ9 DOO OL Wa _ SERIES SR COMS A COM4 IRQS A D RQS oo000000 8 oo00p moa A D RQ4 54321 Ooooh OOOO VD COMI amp COM4 A ADO RD4 COMS amp COM4 amp A D IRQS A o Zero Wait State OO aye DD DO DD DO DO Ola oon 00 oo oo ole DO OO oo OO DO oo DO OO DO oo oo oo oo oo Clear CMOS RAM Battery Disconnected Backup Battery Enabled oooo0 In ATX Bypass o000 Ou
16. 44 Vin 12 Vin 5 45 46 Vin 13 Vin 6 47 48 Vin 14 Vin 7 49 50 Vin 15 Signal Name Definition DIO A7 A0 Digital I O port A programmable direction DIO B7 BO Digital I O port B programmable direction DIO C7 CO Digital I O port C programmable direction C7 C4 may be configured for counter timer signals see page 41 Ext Trig External A D trigger input Tout 1 Counter Timer 1 output Vin 7 7 Vin 0 0 Analog input channels 7 0 in single ended mode High side of input channels 7 0 in differential mode Vin 15 7 Vin 8 0 Analog input channels 15 8 in both single ended mode Low side of input channels 7 0 in differential mode Vout0 3 Analog output channels 0 3 5V Out Connected to switched 5V supply Aground Vout Vin Analog ground used for analog circuitry only Vout pin is for the analog outputs Vin pin is for the analog inputs Dground Digital ground used for digital circuitry only d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 14 4 12 PC 104 Bus Connectors The PC 104 bus is essentially identical to the ISA Bus except for the physical design It specifies two pin and socket connectors for the bus signals A 64 pin header J1 incorporates the 62 pin 8 bit bus connector signals and a 40 pin header J2 incorporates the 36 pin 16 bit bus connector signals The additional pins on the PC 104 connectors are used as ground or key
17. Auxiliary Serial Port Connector J15 1 RX COM1 Pin 2 on DBO 1 2 TX COM1 Pin 3 on DBO 1 3 Ground Pin 5 on DBO 1 4 RX COM2 Pin 2 on DBO 2 5 TX COM2 Pin 3 on DB9 2 6 Ground Pin 5 on DB9 2 This 6 pin header is provided for auxiliary access to serial ports 1 and 2 with signals RX TX and Ground for each port This connector may be used in low cost limited I O configurations as an alternative to the 80 pin connector J3 Do not use both J15 and the corresponding pins on J3 simultaneously Diamond Systems cable no 6981005 converts the 6 pins to two standard DB9M connectors with industry standard pinout for RS 232 DTE 4 8 Watchdog Failsafe Features J6 ZFIX 1 2 Ground 3 3V 3 4 WDI PRST 5 6 WDO J6 serves two main functions It is used for watchdog timer access and it is used to enable the ZFx86 failsafe feature ZFIX mode for reprogramming the BIOS or downloading files to the flash memory J6 also contains a reset indicator signal PRST that goes low for 200ms whenever a system reset occurs When the CPU is installed with a Panel Board the failsafe feature is activated with a momentary switch on the panel board labeled ZFIX and the watchdog timer feature is accessed with header J9 on the upper right edge of the panel board The watchdog timer circuit is described on page 20 of this manual It may be programmed directly as described in the ZFx86 training manual included wi
18. CLRA 1 2 H3 H2 H1 HO L3 L2 L1 LO 3 SCANEN G1 GO 4 CKSEL1 CKFRQ1 CKFRQ0 ADCLK DMAEN TINTE DINTE AINTE 5 FT5 ETA FT3 FT2 FT1 FTO 6 DA7 DA6 DA5 DA4 DA3 DA2 DA1 DAO 7 DACH1 DACHO DA11 DA10 DAY DAG 8 PA7 PA6 PA5 PA4 PA3 PA2 PA1 PAO 9 PB7 PB6 PB5 PB4 PB3 PB2 PB1 PBO 10 PC7 PC6 PC5 PC4 PC3 PC2 PC1 PCO 11 DIOCTR DIRA DIRCH DIRB DIRCL 12 CTRD7 CTRD6 CTRD5 CTRD4 CTRD3 CTRD2 CTRD1 CTRDO 13 CTRD15 CTRD14 CTRD13 CTRD12 CTRD11 CTRD10 CTRD9 CTRD8 14 CTRD23 CTRD22 CTRD21 CTRD20 CTRD19 CTRD18 CTRD17 CTRD16 15 CTRNO LATCH GTDIS GTEN CTDIS CTEN LOAD CLR READ Blank bits are unused and read back as 0 Address 7 6 5 4 3 2 1 0 0 AD7 AD6 AD5 AD4 AD3 AD2 AD1 ADO 1 AD15 AD14 AD13 AD12 AD11 AD10 AD9 AD8 2 H3 H2 H1 HO L3 L2 L1 LO 3 STS SD WAIT DACBSY OVF SCANEN G1 GO 4 CKSEL1 CKFRQ1 CKFRQ0 ADCLK DMAEN TINTE DINTE AINTE 5 FT5 FT4 FT3 FT2 FT1 FTO 6 FD5 FD4 FD3 FD2 FD1 FDO 7 DMAINT TINT DINT AINT ADCH3 ADCH2 ADCH1 ADCHO 8 PA7 PA6 PA5 PA4 PA3 PA2 PA1 PAO 9 PB7 PB6 PB5 PB4 PB3 PB2 PB1 PBO 10 PC7 PC6 PC5 PC4 PC3 PC2 PC1 PCO 11 DIOCTR DIRA DIRCH DIRB DIRCL 12 CTRD7 CTRD6 CTRD5 CTRD4 CTRD3 CTRD2 CTRD1 CTRDO 13 CTRD15 CTRD14 CTRD13 CTRD12 CTRD11 CTRD10 CTRD9 CTRD8 14 CTRD23 CTRD22 CTRD21 CTRD20 CTRD19 CTRD18 CTRD17 CTRD16 15 REV7 REV6 REV5 REV4 REV3 REV2 REV1 REVO K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 32 11 3 Reg
19. CORPORATION Prometheus CPU User Manual V1 47 Page 54 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 Output range in bipolar mode 10V 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 Here is an illustration of the relationship between D A code and output voltage for a bipolar output range oer Reference voltage D A Code Output voltage symbolic formula Output voltage for 10V range 0 VREF 10 0000V 1 Veer 1 LSB 9 9951V 2047 1 LSB 0 0049V 2048 0 0 0000V 2049 1 LSB 0 0049V 4095 Veer 1 LSB 9 9951V d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 55 17 GENERATING AN ANALOG OUTPUT This chapter describes the steps involved in generating an analog output also called performing a D A conversion on a selected output channel using direct programming not with the driver software There are three steps involved in performing a D A conversion 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 17 1 Compute the D A code for the desired output voltage Use the formulas on the preceding page to compute the D A code required to generate the
20. Name FD5 0 D A data bits 7 0 DAO is the LSB D A data is an unsigned 12 bit value This register must be written to before Base 7 since writing to Base 7 updates the DAC immediately Current FIFO depth This value indicates the number of A D values currently stored in the FIFO K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 39 Base 7 Bit No Name DACH1 0 DA11 8 Base 7 Bit No Name DMAINT TINT DINT AINT ADCH3 0 Write DAC MSB Channel No Li 6 sf 4 ef 2 1 9 D A channel The value written to Base 6 and Base 7 are written to the selected channel and that channel is updated immediately The update takes approximately 20 microseconds due to the DAC serial interface D A bits 11 8 DA11 is the MSB D A data is an unsigned 12 bit value Read Analog Operation Status ee ee ae ee DMA interrupt status 1 interrupt pending 0 interrupt not pending Timer interrupt status same values as above Digital I O interrupt status same values as above Analog input interrupt status same values as above Current A D channel This is the channel that will be sampled on the next conversion When any of bits 7 4 are 1 the corresponding circuit is requesting service The interrupt routine must poll these bits to determine which circuit needs service and then act accordingly K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 4
21. jumper settings 8 3 Parallel Port The parallel port LPT1 is an IEEE 1284 compatible bidirectional port It includes filtering for reduced EMI operation It operates in ECP mode set up in the BIOS The parallel port has the following default configuration Port Mode Address range IRQ DMA LPT1 ECP VO 378 37F 7 3 The parallel port settings may be modified in the BIOS Select Advanced menu then I O Device Configuration The above four settings may then be modified d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 27 9 NOTES ON OPERATING SYSTEMS AND BOOTING PROCEDURES 9 1 Booting to DOS From a Floppy Drive In some revisions of the ZF Micro processor chip and Phoenix BIOS on Prometheus there is a short period of conflict between the floppy drive and the programmable chip selects during the booting from a floppy disk in certain operating systems such as Windows 98 This conflict makes it impossible to boot to DOS from a floppy disk with these chip selects enabled The following workaround procedure may be used to enable booting to floppy drive 1 Enter the BIOS press F2 during startup 2 Change the boot sequence Boot menu to boot from floppy drive 3 Go to the Advanced screen then select Advanced Chipset Control ISA I O Chip Select Setup You will see four chip selects CSO is not used CS1 is used for COM3 CS2 is used for COM4 and CS3 is used for the data acquisition circ
22. pin header J4 on the bottom edge of the board Diamond Systems cable no 6981002 mates with this header and provides a standard RJ 45 connector in panel mount form for connecting to standard Cat network cables Common RX Common RX TX TX J4 Ethernet Connector The Ethernet chip is the National Semiconductor DP83815 MacPhyter chip Itis connected to the ZfX86 CPU via the board s internal PCI bus It resides at address 1000 and uses IRQ 10 The Prometheus 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 also provided for testing the chip and accessing the configuration EEPROM Each board is factory configured for a unique MAC address using this program To run the program you must boot the computer to DOS The program will not run properly in a DOS window inside of Windows In normal operation this program should not be required d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 26 8 2 Serial Ports Prometheus contains 4 serial ports Each port is capable of transmitting at speeds of up to 115 2Kbaud Ports COM1 and COM2 are built into the ZF Micro CPU chip They consist of standard 16550 type UARTs with 16 byte FIFOs Ports COM3 and COM4 are derived from an Exar 16C2850 dual UART chip and in
23. pins The female sockets on the top of the board enable stacking another PC 104 board on top of the board while the male pins on the bottom enable the board to plug into another board below it In the pinout figures below the tops correspond to the left edge of the connector when the board is viewed from the primary side side with the CPU chip and the female end of the PC 104 connector and the board is oriented so that the PC 104 connectors are along the bottom edge of the board View from Top of Board J2 PC 104 16 bit bus connector Ground MEMCS16 IOCS16 IRQ10 IRQ11 IRQ12 IRQ15 IRQ14 DACKO DRQO DACK5 DRQ5 DACK6 DRQ6 DACK7 DRQ7 5V MASTER Ground Ground D15 Key pin cut K DIAMOND SYSTEMS CORPORATION J1 PC 104 8 bit bus connector IOCHCHK SDO SAO Ground Prometheus CPU User Manual V1 47 A1 B1 A2 B2 A3 B3 A4 B4 A5 B5 A6 B6 A7 B7 A8 B8 A9 B9 A10 B10 A11 B11 A12 B12 A13 B13 A14 B14 A15 B15 A16 B16 A17 B17 A18 B18 A19 B19 A20 B20 A21 B21 A22 B22 A23 B23 A24 B24 A25 B25 A26 B26 A27 B27 A28 B28 A29 B29 A30 B30 A31 B31 A32 B32 Ground RESET 5V IRQ9 5V DRQ2 12V OWS 12V Key pin cut SMEMW DRQ1 Refresh SYSCLK IRQ7 IRQ6 IRQ5
24. properly or if disk accesses do not work properly the first thing to check is the power supply voltage level Many boot up problems are caused simply by insufficient voltage due to excess current draw on the 5V supply The panel board has two external input power connectors J11 and J13 to satisfy a variety of input power scenarios J11 is a circular jack with a 2 5mm post This connector is intended for direct 5VDC 5 input from the Diamond Systems PS 5VUS 01 wall adapter or an equivalent supply The polarity for the power connector is tip 5V ring Ground J13 is a DB9 male connector with multiple input voltages and applications If a latching connector is required the DB9 can be used in place of the circular jack to provide 5VDC If multiple system voltages are required for example 5V DV 12V and or 12V these voltages can be supplied through J13 as well The 5V and 12V are controlled by the CPU s ATX power circuit while the 5V and 12V are connected directly to the PC 104 bus pins J13 can also be used with a DC DC power supply such as Diamond Systems Jupiter MM modules in applications where the supply voltage is different from the required 5V In this scenario the input voltage is fed to the DB9 and routed to the power supply with cable connected between the supply and connector J5 or J12 on the bottom side of the panel board J5 is used when the power is to be routed from the output of the power supply direct
25. scan size is 8 channels the FIFO threshold should be set to 8 16 24 32 40 or 48 but not less than 8 This way the interrupt will occur at the end of the scan and the interrupt routine can read in 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 is available until the interrupt occurs so 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 necessary to determine the optimum FIFO threshold for each application The table on the next page describes the board s behavior for each of the 4 possible cases of AINTE and SCANEN The given interrupt software behavior describes the operation of the Diamond Systems Universal Driver software If you write your own software
26. write to any other channel in the D A through addresses Base 6 or Base 7 The status bit DACBUSY Base 3 bit 4 indicates whether the D A is busy updating 1 or idle 0 After writing too the D A monitor this bit until it is zero before proceeding to the next D A operation d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 56 18 ANALOG CIRCUIT CALIBRATION Calibration applies only to boards with the analog I O circuit The analog I O circuit is calibrated during production test prior to shipment Over time the circuit may drift slightly If calibration is desired follow the procedure below For analog I O circuit configuration see page 45 Four adjustments are possible A D bipolar offset A D unipolar offset A D full scale D A full scale No adjustment for D A offset is possible 18 1 A D bipolar offset Potentiometer R66 is used for adjustment Configure the circuit for Bipolar A D mode Input OV to any input channel and perform A D conversions on that channel The gain setting and single ended vs differential mode do not matter Adjust R66 until the A D value is 0 To eliminate the effects of noise it is best to take a number of readings and average the values 18 2 A D unipolar offset Potentiometer R67 is used for adjustment Configure the circuit for Unipolar A D mode The gain setting and single ended vs differential mode do not matter Input OV to any input channel and perform A D conve
27. 0 Base 8 Read Write Digital UO Port A Bit No Name Base 9 Read Write Digital UO Port B Bit No Name Base 10 Read Write Digital UO Port C Bit No Name These 3 registers are used for digital I O The direction of each register is controlled by bits in the register below Base 11 Read Write Digital UO Control Register Bit No wn ocr x x oma orca x ome ore The bit assignments of this register are designed to be compatible with the 82C55 chip s control register DIOCTR Selects counter I O signals or digital I O lines C4 C7 on pins 21 24 of J14 Pin No DIOCTR 1 DIOCTR 0 Pin direction for DIOCTR 0 21 C4 Gate 0 Input 22 C5 Gate 1 Input 23 C6 Clk 1 Input 24 C7 Out 0 Output NOTE If DIOCTR 0 then the pin direction is as shown above If DIOCTR 1 then the pin direction is controlled by DIRCH This bit resets to 1 DIRA Port A direction 0 output 1 input DIRB Port B direction 0 output 1 input DIRCH Port C bits 7 4 direction 0 output 1 input DIRCL Port C bits 3 0 direction 0 output 1 input K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 41 Base 12 Read Write Counter Timer D7 0 Bit No Name This register is used for both Counter 0 and Counter 1 It is the LSB for both counters When writing to this register an internal load register is loaded Upon issuing a Load command through Base 15 the selected counter s
28. 32768 to 32767 gt 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 on the next page In scan mode the behavior is the same except that when the program initiates a conversion all channels in the programmed channel range will be sampled once and the data will be stored in the FIFO The FIFO depth register will increment by the scan size When STS goes low the program should read out the data for all channels d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 49 14 7 Convert the numerical data to a meaningful value Once you have the A D value you need to convert it 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 then you would need to convert the voltage 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 here 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 Con
29. 4096 of full scale Output ranges Unipolar 0 10V or user programmable Bipolar 10V or user programmable Output current 5mA max per channel Settling time 4uS max to 1 2 LSB Relative accuracy 1 LSB Nonlinearity 1 LSB monotonic Digital UO PR Z32 EA only No of lines 24 Compatibility 3 3V and 5V logic compatible Input voltage Logic 0 0 5V min 0 8V max Logic 1 2 0V min 5 5V max Input current 1uA max 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 I O capacitance 10pF max Counter Timers PR Z32 EA only A D pacer clock 24 bit down counter Pacer clock source 10MHz 1MHz or external signal General purpose 16 bit down counter GP clock source 10MHz 100KHz or external signal General Power supply 5VDC 5 Current consumption 0 7A 1 1A typical Operating temperature 40 to 85 C Operating humidity 5 to 95 noncondensing d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 62 22 FLASHDISK MODULE Prometheus is designed to accommodate an optional flashdisk module This module contains 32MB to 256MB of solid state non volatile memory that operates like an IDE drive without requiring any additional driver software support Operating temperature is 40 to 85 C The flashdisk mounts to the CPU board with a spacer and two screws included Model Capacity FD 32 XT 32MB FD 64 XT 64MB FD 128 XT 128MB FD 256 XT 256MB PE Kiss asf LEE
30. 44 pin cable carries power from the CPU to the adapter board and will power 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 hard drive requires an external power source through 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 Diamond Systems cable no 6981006 may be used with either power connector to bring power to the drive d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 63 23 1 O PANEL BOARD 23 1 Description An I O panel board accessory is available to convert all UO headers on Prometheus to industry standard connectors Using this panel board eliminates all internal cables resulting in increased ruggedness and quicker assembly In addition a standard precut cover plate is available to enable mounting the panel board and CPU in Diamond Systems Pandora enclosure system The panel board is available in two models PNL Z32 E Mates with PR Z32 E ST CPU with ethernet and no data acquisition circuit PNL Z32 EA Mates with PR Z32 EA ST CPU with ethernet and data acquisition circuit ASSY 810520 SOE e REV I 955953 EBR ER SS gBo000las000 ino 12 to 14 ta dsl con Som Ss o OI R OO 63 G oo AOE 427 VGA XO O 4 0000 OO OO o oPOWER RES fool O oo joo 150 O HSH 20000 O a oo
31. 6 bit compatibility mode Life Cycle Management and Calculations The Disk On Board feature provides a simple form of wear leveling Each time data is written the next consecutive available memory space is used and the current location is marked as garbage and made available for later use This way the system walks through the entire available space before rewriting the current file location This technique helps to dramatically increase the chip s lifetime because the entire chip is used to spread out the wear caused by the repeated erase cycles A typical embedded application consists of reading a file updating it and repeating the process over and over again The formula for calculating the number of times this may be done before the flash reaches its limit is as follows Number of file writes size of chip size of file lifetime of chip Where size of chip 1 45MB and lifetime of chip 2 000 000 This formula reveals the increase in lifetime provided by the wear leveling The lifetime is increased by the ratio of the chip s total capacity to the file size To calculate the number of days the chip will last simply factor in the number of updates per day Lifetime in days number of file writes file writes per day d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 25 8 SYSTEM UO 8 1 Ethernet Prometheus includes a 100Mbps Ethernet connection using 100BaseT wiring The signals are provided on a 6
32. 96 4 88mV 16 3 Output Range Selection Jumper block J13 is used to select the DAC output range See page 45 for configuration data The DACs can be configured for 0 10V or 10V Two parameters are configured unipolar bipolar mode and power up reset clear mode In most case for unipolar mode set the board to reset to zero scale and for bipolar mode configure the board for reset to mid scale In each case the DACs will reset to OV d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 53 16 4 D A Conversion Formulas and Tables The formulas below explain how to convert between D A codes and output voltages 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 Output range in unipolar mode 0 10V Full scale range 10V OV 10V 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 4096 10V 2 44mV Here is an illustration of the relationship between D A code and output voltage for a unipolar output range Vrer 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 Va 2 1LSB 4 9976V 2048 Veer 2 5 0000V 2049 Veer 2 1 LSB 5 0024V 4095 Veer 1 LSB 9 9976V d DIAMOND SYSTEMS
33. FER KEREREERSSWSRRSRRRRKSSRSI 22 1 Installing the Flashdisk Module The flashdisk module installs directly on the IDE connector J8 and is held down with a spacer and two screws onto a mounting hole on the board It fits within the height limit of the PC 104 specification so another board may be installed on top of the Prometheus CPU The flashdisk module contains a jumper for master slave configuration For master install the jumper over pins 3 amp 4 and for slave install the jumper over pins 1 amp 2 22 2 Configuration To configure the CPU to work with the Flashdisk module enter the BIOS press F2 during startup Select the Main menu then select IDE Primary Master Enter the following settings Type User Cylinders 489 for 32MB flashdisk Heads 4 for 32MB flashdisk Sectors 32 for 32MB flashdisk Multi Sector Transfer Disable LBA Mode Control Enable 32 Bit I O Disable Transfer Mode Fast PIO 1 Ultra DMA Mode Disable Exit the BIOS and save your change The system will now boot and recognize the FlashDisk module as drive C 22 3 Using the Flashdisk with Another IDE Drive Since the flashdisk occupies the board s IDE connector mounting it on the board prevents the simultaneous use of another IDE drive To utilize both the flashdisk and another drive an adapter board such as Diamond Systems ACC IDEEXT and cables are required The ACC IDEEXT adapter board is described on page 69 22 4 Power Supply The
34. IRQ4 IRQ3 DACK2 TC BALE 5V OSC Ground Ground Page 15 5 JUMPER CONFIGURATION Refer to the Prometheus board drawing on page 7 for locations of the configuration items mentioned here Also see page 45 for information on configuration J13 for the data acquisition circuit 5 1 J10 System Configuration Jumper block J10 is used for configuration of IRQ levels wait states ATX power control and CMOS RAM Zero Wait State ATX Bypass Sm GOM4 IRG A 15 o0O0O000000 DoGOOOOS 5 4 4 CMOS Hattery i To COMI IRQ AD IRQ Serial Port and A D IRQ Settings COM3 may be set to IRQ4 or IRQ9 COM4 may be set to IRQ3 or IRQ15 The A D circuit on model PR Z32 EA may be set to IRQ5 or IRQ4 if COM3 does not use it In addition it is possible to set up all 3 circuits to share IRQ4 or IRQ5 Wait States The ISA bus may be configured for standard wait states or zero wait states In most configurations and board combinations the zero wait state setting will work properly and provide faster performance However it should be tested in your application to verify correct operation In standard configuration the CPU issues 2 wait states for 16 bit cycles and 3 wait states for 8 bit cycles ATX Power Control The ATX power control is set with this jumper block If the ATX jumper is out ATX works normally an external momentary switch may be used to turn power on and off A quick contact turns the power on and a long contact gt
35. LSB register will be loaded with this value When reading from this register the LSB value of the most recent Latch command will be returned The value returned is NOT the value written to this register Base 13 Read Write Counter Timer D15 8 Bit No Name This register is used for both Counter 0 and Counter 1 It is the MSB for counter 1 and the middle byte for counter 0 When writing to this register an internal load register is loaded Upon issuing a Load command through Base 15 the selected counter s associated register will be loaded with this value For counter 0 it is the middle byte For counter 1 it is the MSB When reading from this register the associated byte of the most recent Latch command will be returned The value returned is NOT the value written to this register Base 14 Read Write Counter Timer D23 16 Bit No Name This register is used for Counter 0 only Counter 0 is 24 bits wide while Counter 1 is only 16 bits wide When writing to this register an internal load register is loaded Upon issuing a Load command through Base 15 for Counter 0 the counter s MSB register will be loaded with this value When issuing a Load command for counter 1 this register is ignored When reading from this register the MSB value of the most recent Latch command for counter 0 will be returned The value returned is NOT the value written to this register K DIAMOND SYSTEMS CORPORATION Prome
36. Link switch while powering up or resetting the computer The link switch must be held down slightly longer than the reset switch is released in order to power up to the BUR When the Prometheus CPU boots up you will see the BUR display in the terminal program The required communication parameters are 9600 n 8 1 Now run the accompanying batch file recover bat to begin the process This batch file executes the following command zftrm exe loadbios com prm1 rom Each flash manufacturer utilizes a different programming protocol Zfterm exe knows about AMD and Atmel parts which are used on Prometheus boards If the software cannot recognize the flash device as an AMD or Atmel part then the CPU might have a hardware problem or else the program is an old version and needs to be upgraded If this is the case the software will exit with a message indicating that the device is not supported Contact Diamond Systems technical support for further assistance After the software recognizes the device it first completely erases the flash chip This might take up to 90 seconds After the chip is erased the software reports Flash Erased and then starts downloading the BIOS image from the host and programming the chip To completely download and reprogram the BIOS takes several minutes While this happens characters are continuously scrolled across the screen of the host PC It is recommended that no other applications or tasks be running on the host PC
37. MOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 44 12 DATA ACQUISITION CIRCUIT CONFIGURATION Jumper block J13 is used to configure the A D and D A circuits on PR Z32 EA It is located on the left side of the board next to the data acquisition I O pin header and is oriented vertically The functions are shown below and are described in detail on the following page Differential A D Single Ended A D Se RI Se Unipolar Bipolar D A yoOoooooo oooo0000 Bipolar Unipolar A D E DZA Clear Zero Mid Scale The default settings are as shown Default AD Singla Ended Bipolar Settings D A Bipolar Clear to Mid Scale The various configurations are illustrated and described below For correct configuration pick one option from the first two configurations single ended or differential A D one option from the second two configurations unipolar or bipolar A D and one option from the third two configurations unipolar or bipolar D A 234 EA O O O O O S vd OOooooO Single Ended Ac Differential AD Unipolar Ac Bipolar A BZ D000000 Unipolar D A DODOOO Clear to Zero 7 900000 Bipolar DA 0000o Clear to Mid Scale K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 45 Single ended Differential Inputs Prometheus can accept both single ended and differential inputs A single ended input uses 2 wires input and ground The measured input voltage is the difference be
38. S CORPORATION Prometheus CPU User Manual V1 47 Page 28 9 3 Installing an OS from a Hard Disk onto a Flashdisk Module To install an operating system such as DOS or VxWorks from a hard drive onto a flashdisk module follow the procedure below The process requires a floppy drive with a bootable DOS diskette a hard disk with the operating system the flashdisk module the IDE extender board and associated cables You must boot to the floppy drive rather than the hard drive because if you boot to the hard drive it must be the master drive making the flashdisk the slave drive DOS will not allow you to create a bootable partition on a slave drive and you must create the bootable partition on the flashdisk so the flashdisk must be configured for the master As an alternative to this procedure you may also install the operating system from the floppy drive as outlined on page 28 emt oh 11 12 13 14 15 16 17 18 19 20 21 First install the operating system onto a hard disk Configure the hard disk jumper for Slave and the flashdisk module jumper for Master Install the flashdisk module onto the IDE extender board model ACC IDEEXT Connect the extender board to the CPU s IDE connector using the 44 pin ribbon cable Connect the hard disk to the appropriate connector on the extender board If using a 44 pin cable such as DSC no 6981004 no power cable is required If using a 40 pin cable such as DSC no C 40 18
39. aders the effort to remove the Prometheus from a mating board is significant and requires careful effort Therefore low insertion force components may be preferred d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 72 Prometheus CPU Base Board Footprint Top View Use this drowing for component placement on bose boord when mounting Prometheus upside dewn onto base board 3 575 IN 3 375 IN 3x I TI 3 325 IN O 2 635 IN PIN Al 6 516 IN fei ODOoooOooopDoOopGo0opOo0pD 0 DDpOoOooOooopooOoDOoooOG0oMO DD OD 06 9 0 9 0 OF DG OO DO OD OO DpDooooOoooOooOoOoOoOoOoOoOoOMO 0 015 IN PIN Al Rr ep C000 e N CENTERLINE AN 3 000 IN 0 125 IN DIA 4 PLACES PAD DIAMETER 0 250 IN 6 535 IN 875 IN 0 109 IN ra 1 060 IN m 0 200 IN m 2 300 IN 2 450 IN 3 188 IN 3 128 IN 3 150 IN 3 350 IN 0 200 IN 9 200 IN Page 73 Prometheus CPU User Manual V1 47 K DIAMOND SYSTEMS CORPORATION 28 PC 104 MECHANICAL DRAWING The following drawing is from the PC 104 specification This document may be downloaded from www pc104 org or from www diamondsystems com support techliterature 2 0 250 DIA PAD is 0 500 0 350 0 125 DIA HOLE 3 250 4 050 0 062 lt vo 4PLCS lt 0 100 8775 A _ 3 575 3 45000
40. alue to 0 To load a counter First write the load value to Base 12 and Base 13 for Counter 1 or Base 12 through Base 14 for Counter 0 Then write a Load command to Base 15 For example to load Counter 0 with the hex value 123456 Write 0x12 to Base 14 these three bytes can be written to in any order e Write 0x34 to Base 13 e Write 0x56 to Base 12 Write 0x02 to Base 15 to load counter 0 To enable counting Write 0x04 ctr 0 or 0x84 ctr 1 to Base 15 To stop counting Write 0x08 ctr 0 or 0x88 ctr 1 to Base 15 To read a counter First latch it then read the value Write 0x40 to Base 15 to latch counter 0 or OxCO to latch counter 1 Read LSB from Base 12 Read Middle Byte from Base 13 Read MSB from Base 14 Assemble 3 bytes into the current counter value o More complete counter programming operations are provided in chapter 20 on page 59 K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 43 Base 15 Read FPGA Revision Code Name Rev Reve revs Reve Reva Reva Revi REVO This register is used to control the counter timers A counter is selected with bit 7 and then a 1 is written to any ONE of bits 6 0 to select the desired operation for that counter The other bits and associated functions are not affected Thus only one operation can be performed at a time REV7 0 Revision code read as a 2 digit hex value i e 0x20 revision 2 0 K DIA
41. an be configured for can be configured for unipolar positive input voltages only or bipolar both negative and positive input voltages For unipolar inputs install a jumper as shown For bipolar inputs leave the jumper out Analog Output Configuration The 4 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 reset method is selected with a jumper on J13 If the jumper is in the outputs will reset to the bottom of their range called zero scale If the jumper is out the outputs will reset to the middle of their range mid scale Normally the D A is configured to power up to OV so that when the power is turned on the device connected to the analog output doesn t see a step change in voltage Therefore for unipolar mode normally the outputs should be configured for zero scale reset and for bipolar mode the outputs should be configured for mid scale reset since OV is halfway between 10V and 10V for the 10V range d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 46 13 ANALOG INPUT RANGES AND RESOLUTION 13 1 Overview Prometheus 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
42. annnannnannnannnanunan 56 18 ANALOG CIRCUIT CALIBRATION aaaaaaaaaaa a n na nnnannnannnannnannnnnnnannnannnannnannnannnnunnanunan 57 19 DIGITAL VO OPERATION 111207 slvassi ccc eesnceseneeeseceeessaesesneeseeeeeseeaesaesaeneesesnesssaesesneeseeneneaes 58 20 COUNTER TIMER OPERATION cccccesseesssesscneseseesesneesecesesneesssneeseseeesseseseeeensnenseees 59 21 DATA ACQUISITION SPECIFICATIONS aaaaaaaaaaaaaaaaa nananunanunanunanunanunanunanunnaunnnunnnannnannaan 62 22 FLASHDISK MODULE svissisisictesssiasccises cststtavsecaseedateatavansvivas al a aaa cndwetevasuvivancadvesntanstes 63 22 2 CONFIGURATION ssecci iccscsadecnnesed deus ee d y daa kat pe l ain gr ar Eed AER 63 22 3 USING THE FLASHDISK WITH ANOTHER IDE DRIVE ua aaaiaiaiiaaaaaaaaaaasaanasusaasasaanasaaaasanaanakaaaa 63 22 4 POWER SUPPLY ee Seed dead eased EES ENEE 63 23 VO PANEL BOARD 11177 1v ransaka ta a ala ava a a aaanaalagbaab un adabanaasaa avanga nanunkann uddannagannanaa 64 24 FLASH DISK PROGRAMMER BOARD aaaaaa2aaaaaaaaa an nananananunanunanunanunanunanunnnannnannnannana 69 29 VO CABLES TT 70 26 VGA ACCESSORY BOARD 11717 snus osnt larst ilansdtisvi ugv kia fan daga aviat kian H arkru kina n uj wnaa 71 27 MOUNTING PROMETHEUS ON A BASEBOARD aaaaaaaaaaaaaaaav aa aan aunnaunnnunnaannnannnannaan 72 28 PC 104 MECHANICAL DRAWING aaaaaaaaaaaaaan ana an nanananunanunanunannnannnanunannnnnnnnnunn
43. ata bits 7 0 ADO is the LSB A D data is an unsigned 16 bit value The A D value is derived by reading two bytes from Base 0 and Base 1 and applying the following formula A D value Base 0 value Base 1 value 256 The value is interpreted as a twos complement 16 bit number ranging from 32768 to 32767 This raw A D value must then be converted to the corresponding input voltage and or the engineering units represented by that voltage by applying additional application specific formulas Both conversions conversion to volts and then conversion to engineering units may be combined into a single formula for efficiency Base 1 Write Not Used Base 1 Read A D MSB nome avis apm las aor aon abo aoe Le AD15 8 A D data bits 15 8 AD15 is the MSB A D data is an unsigned 16 bit value See Base 0 Read on the previous page for information on A D values and formulas K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 34 Base 2 Read Write A D Channel Register Bit No Name H3 HO High channel of channel scan range Ranges from 0 to 15 in single ended mode 0 7 in differential mode L3 LO Low channel of channel scan range Ranges from 0 to 15 in single ended mode 0 7 in differential mode The high channel must be greater than or equal to the low channel When this register is written the current A D channel is set to the low channel so that the next time a
44. ault setting If a different speaker is desired or if no speaker is desired remove the jumper To connect an auxiliary speaker connect the speaker across pins 7 8 for a speaker with a 2 pin 2 position housing or across pins 7 13 for a speaker with a 2 pin 4 position housing when the two wires are on the two end positions of the housing External momentary switches may be connected to J3 to control power or reset For power connect the switch between pins 1 and 2 of J3 For reset connect the switch between pins 3 and 4 Each switch operates by connecting the selected control signal to ground To lock out the keyboard and mouse ports on the panel board install a jumper across pins 5 6 To disable the ATX power function connect a jumper across pins 12 and 14 on J3 An auxiliary switched 5V pin is provided on J3 for customer application In addition the unswitched power may be used on this header to power a panel light or other customer circuit with the current limited to 1A Ground 1 2 Power Switch Ground 3 4 Reset Switch Ground 5 6 Keyboard Mouse Lockout 5VDC Unswitched 7 8 Speaker 5VDC Switched 9 10 N C Internal Speaker 11 12 Ground Speaker 13 14 ATX Disable J3 Pinout d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 67 23 7 Watchdog Timer J9 may be used to connect an external watchdog timer circuit to the CPU For watchdog timer programming information see page
45. ble for user applications 6 7 Backup Battery Prometheus contains an integrated Real Time Clock CMOS RAM backup battery It is located on the lower edge of the baord adjacent to the PC 104 bus connector J1 This battery has a capacity of 30mAH and will last approximately 1 5 2 years in power off state The battery is activated for the first time during initial factory configuration and test and remains in service from that time forward The serviceable life of this battery is threfore affected by the time between its manufacture and its delivery to the customer For longer periods of backup protection an external battery is recommended The battery voltage must be between 3 0 3 6VDC It is connected to the board via connector J9 on the right side of the board Diamond Systems cable no 6981011 can be used to connect the battery to this connector The blue lead pin 1 is positive and the black lead pin 2 is ground 6 8 System Reset Prometheus contains a chip to control system reset operation Reset will occur under either of two conditions User causes reset with a ground contact on the Reset input Input voltage drops below 3 0V The ISA Reset signal is an active high pulse with a duration of 200ms d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 21 7 BIOS 7 1 BIOS Settings Prometheus uses a BIOS from Phoenix Technologies modified to support the custom features of the ZF Micro ZFx86 chip a
46. cable no 6981006 mates with J12 It 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 4 4 External Battery J9 3 0 3 6VDC in 1 2 Ground The on board backup battery preserves the real time clock operation and the BIOS user settings It has a capacity of 30mAh which will last about 1 5 2 years in power off condition For longer period of backup protection an external battery is recommended J9 is a two pin locking header for use with an external backup battery If an external battery is used the on board battery does not need to be removed or disconnected Diamond Systems cable no 6981011 mates with this connector The blue lead is the positive lead and the black lead is ground 4 5 Ethernet J4 Common RX Common OU BR rh gt s J4 is a 1x6 pin header It mates with Diamond Systems cable no 6981002 which provides a panel mount RJ 45 jack for connection to standard CAT5 network cables 4 6 USB J5 Key pin cut 1 2 Shield USB2 Pwr 3 4 USB1 Pwr USB2 Data 5 6 USB1 Data USB2 Data 7 8 USB1 Data USB2 Pwr 9 10 USB1 Pwr J5 is a 2x5 pin header It mates with Diamond Systems cable no 6981012 which provides 2 standard USB type A jacks in a panel mount housing K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 11 4 7
47. clude 128 byte FIFOs Ports 3 and 4 may be operated at speeds up to 1 5Mbaud with installation of high speed drivers as a custom option The serial ports use the following default system resources Port Address range IRQ COM1 VO 3F8 3FF 4 COM2 VO 2F8 2FF 3 COM3 UO 3E8 3EF 4 COM4 VO 2E8 2EF 3 The settings of COM1 and COM2 may be changed in the system BIOS Select the Advanced menu then I O Device Configuration Serial Port A is COM1 and Serial Port B is COM2 The base address and interrupt level may be modified on this page The settings of COM3 and COM4 may be changed using a different procedure The addresses of these two ports are selected on the Advanced menu of the BIOS Select Advanced Chipset Control then ISA I O Chip Select Setup I O Window io_cs1 is for COM3 and I O window io_cs2 is for COM4 The only parameter that may be changed is the address The other settings must remain in their default values Window state Enabled Base Address user selectable Read Write control Read Write Window data width 8 bits Active Level Active Low Window size 08 After making any desired changes go to the top level Exit menu and select Exit Saving Changes The interrupt IRQ settings for COM3 and COM4 are selected with J10 COM3 may use IRQ4 or IRQ9 COM4 may use IRQ3 or IRQ15 If both serial ports share the same IRQ they may share IRQ4 or IRQ5 See page 16 for serial port IRQ
48. ctable default 280h Read Write control Read Write Window data width 8 bits Active Level Active Low Window size 16 A functional list of registers is provided below and detailed bit definitions are provided on the next page and in the following chapter Base Write Function Read Function 0 Command register A D LSB 1 Not used A D MSB 2 A D channel register A D channel register 3 A D gain and scan settings A D gain and status readback 4 Interrupt DMA counter control Interrupt DMA counter control readback 5 FIFO threshold FIFO threshold readback 6 D A LSB FIFO current depth 7 D A MSB channel no Interrupt and A D channel readback 8 Digital I O port A output Digital I O port A 9 Digital I O port B output Digital I O port B 10 Digital I O port C output Digital I O port C 11 Digital I O direction control Digital UO direction control readback 12 Counter timer D7 0 Counter timer D7 0 13 Counter timer D15 8 Counter timer D15 8 14 Counter timer D23 16 Counter timer D23 16 15 Counter timer control register FPGA revision code d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 31 11 2 Data Acquisition Circuit Register Map WRITE Blank bits are unused and have no effect Address 7 6 5 4 3 2 1 0 0 STRTAD RSTBRD RSTDA RSTFIFO CLRDMA CLRT CLRD
49. d 35 RI4 35 Reset 36 Ground 36 ATX Power 37 5V Out Utilities B 37 KB Lock au 38 Speaker Out 38 IR RX Utilities A 39 IDE Drive LED 39 IR TX 40 Power LED 40 5V In K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 8 Notes on J3 Signals COM1 COM4 LPT1 Keyboard Mouse Clk Utilities A 5V Out Speaker Out IDE Drive LED Power LED Utilities B Reset ATX Power KB Lock IR RX IR TX 5V In The signals on these pins are RS 232 level signals and may be connected directly to RS 232 devices The pinout of these signals is designed to allow a 9 pin male IDC connector to be crimped onto the corresponding ribbon cable wires to provide the correct pinout for a PC serial port connector DTE The signals on these pins comprise a standard PC parallel port The pinout of these signals is designed to allow a 25 pin female IDC connector to be crimped onto the corresponding ribbon cable wires to provide the correct pinout for a PC parallel port connector These are PS 2 signals for keyboard and mouse Clock pin connects to pin 5 of the PS 2 connector Power pin connects to pin 3 of the PS 2 connector Data pin connects to pin 1 of the PS 2 connector Power pin connects to pin 4 of the PS 2 connector Pins 2 and 6 on the Mini Din 6 PS 2 connectors are unused This pin is a switched power pin that is turned on and off with the ATX power switch or with the 5V input
50. d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 19 6 4 Watchdog Timer Prometheus 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 I O connector 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 will be retriggered automatically A block diagram is provided here NMI S l MI RESET WDO WO2 B bit counter 72 ms max WD1 16 bit counter 2 560 MAX RESET The duration of each timer is user programmable When WD1 is triggered it begins to count down When it reaches zero it triggers WD2 and may also generate a user selectable combination of these events Non maskable interrupt NMI System controller interrupt SCI System Management interrupt SMI Hardware reset WD2 then begins to count down When WD2 counter reaches zero it will unconditionally cause a hardware reset The WD2 timer is provided to give external circuits time to respond to the WDO event before the hardware reset occurs The watchdog timer circuit is programmed via I O registers OCH through 12H Detailed programming information is in the ZFx86 Training Manual included in the Documents folder of the Prometheus CD The watchdog timer is supported in the DSC Uni
51. 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 17 2 Write the value to the selected output channel First 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 Example Output code 1776 LSB 1776 amp 255 240 FO Hex 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 Now write these values to the selected channel The LSB is written to Base 6 The MSB and channel number are written to Base 7 The 2 bit channel no 0 3 is written to bits 7 and 6 and the MSB is written to bits 3 0 outp Base 6 LSB outp Base 7 MSB channel lt lt 6 17 3 Wait for the D A to update Writing the MSB and channel number to Base 7 starts the D A update process for the selected channel The update process requires approximately 30 microseconds to transmit the data serially to the D A chip and then update the D A circuit in the chip During this period no attempt should be made to
52. during this time When the device is completely reprogrammed with the BIOS the host will report the completion and the program will terminate The Prometheus CPU is now ready to reboot in normal mode Remove the null modem cable and return the jumper on J6 to its default position d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 23 7 3 Disk On Board Flash File Storage Prometheus supports the use of its on board flash memory as a disk drive About 1 45Mbytes of the total 2MB capacity is available for this function This valuable feature lets you run a DOS operating system right from the flash without having to use any external storage media in your finished application You save the cost of external disk drives or flashdisk modules and associated cables and assembly time Simply format the unused portion of the on board flash to work as a disk drive connect a floppy or hard disk to transfer your files then disconnect them and the system is ready to run Complete instructions are included here To use the Disk On Board feature you must have BIOS version 1 07M or later installed on your Prometheus When you power up the board the screen will indicate the BIOS version number If you have an earlier version you can download the latest BIOS from the Diamond Systems website along with an update utility program The instructions for updating the BIOS are included with the BIOS package on our website and are also included in thi
53. e counter gate Counter 0 Counter 1 outp base 15 0x20 outp base 15 0xA0 The counter will run continuously Clearing a counter Clearing a counter is done when you want 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 will continue to count incoming pulses so its value may not stay at zero a Stop disable the counter Counter 0 Counter 1 outp base 15 0x08 outp base 15 0x88 b Read the data optional See Reading a counter above c Clear the counter Counter 0 Counter 1 outp base 15 0x01 outp base 15 0x81 d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 61 21 DATA ACQUISITION SPECIFICATIONS Analog Inputs PR Z32 EA only No of inputs 8 differential or 16 single ended user selectable A D resolution 16 bits 1 65 536 of full scale Input ranges Bipolar 10V 5V 2 5V 1 25V Unipolar 0 10V 0 5V 0 2 5V Input bias current 50nA max Maximum input voltage 10V for linear operation Overvoltage protection 35V on any analog input without damage Nonlinearity 3LSB no missing codes Drift 5PPM C typical Conversion rate 100 000 samples per second max Conversion trigger software trigger internal pacer clock or external TTL signal FIFO 48 samples programmable interrupt threshold Analog Outputs PR Z32 EA only No of outputs 4 D A resolution 12 bits 1
54. e enabled and disabled and the counter value can be latched for reading 20 2 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 input a gate and an output These signals may be user provided on the I O header when DIOCTR 0 or the input may come from the on board clock generator When the on board clock generator is used the clock frequency is either 10MHz or 100KHz as determined by control bit CKFRQ1 in Base 4 The output is a positive going pulse that appears on pin 26 of the I O header The output pulse occurs when the counter reaches zero When the counter reaches zero it will reload and start over on the next clock pulse The output stays high the entire time the counter is at zero i e from the input pulse that causes the counter to reach zero until the input pulse that causes the counter to reload When DIOCTR 0 Counter 1 operates as follows It counts positive edges of the signal on pin 23 on the I O header The gate is provided on pin 22 If it is high then the counter will count and if it is low the counter will hold its value and ignore input pulses This pin has a pull up so the counter can operate without any external gate signal When DIOCTR 1 Counter 1 operates as follows It takes its input from the on board clock generator based on the value of the CKFRQ1 bit in Base 4 There is no gating and the counter runs continuously C
55. ed A2 CS1 Ground 5V Not Used J8 is a 2x22 44 pin 2mm pitch pin header It mates with Diamond Systems cable no 6981004 and may be used to connect up to 2 IDE drives hard disks CD ROMs or flashdisk modules The 44 pin connector includes power and mates directly with notebook drives and flashdisk modules To use a standard format hard disk or CD ROM drive with a 40 pin connector an adapter PCB such as Diamond Systems ACC IDEEXT is required d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 13 4 11 Data Acquisition I O Connector J14 Model PR Z32 EA only Prometheus model PR Z32 EA includes a 50 pin header labeled J14 for all data acquisition I O This header is located on the left side of the board Pin 1 is the lower right pin and is marked on the board Diamond Systems cable no C 50 18 provides a standard 50 pin connector at each end and mates with this header DIO AO 1 2 DIO A1 DIO A2 3 4 DIO A3 DIO A4 5 6 DIO A5 DIO A6 7 8 DIO A7 DIO BO 9 10 DIO B1 DIO B2 11 12 DIO B3 DIO B4 13 14 DIO B5 DIO B6 15 16 DIO B7 DIO CO 17 18 DIO C1 DIO C2 19 20 DIO C3 DIO C4 Gate 0 21 22 DIO C5 Gate 1 DIO C6 Clk 1 23 24 DIO C7 Out 0 Ext Trig 25 26 Tout 1 5V Out 27 28 Dground Vout 0 29 30 Vout 1 Vout 2 31 32 Vout 3 Aground Vout 33 34 Aground Vin Vin 0 35 36 Vin 8 Vin 1 37 38 Vin 9 Vin 2 39 40 Vin 10 Vin 3 41 42 Vin 11 Vin 4 43
56. el and the high 4 bits select the high channel When you write any value to this register the current A D channel is set to the low channel For example To set the board to channel 4 only write 0x44 to Base 2 To set the board to read channels 0 through 15 write OxFO to Base 2 Note When you perform an A D conversion the current channel is automatically incremented 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 Hex 20 to base 2 The first conversion is on channel 0 the second will be on channel 1 and the third will be on channel 2 Then the channel counter wraps around to the beginning again so the fourth conversion will be on channel 0 again and so on If you are sampling the same channel repeatedly then you set both high and low to the same value as in the first example above Then on subsequent conversions you do not need to set the channel again 14 2 Select the input range Select the input range from among the available ranges shown on page 47 If the range is the same as for the previous A D conversion then it does not need to be set again Write this value to the input range register at Base 3 see page 36 For example For 5V range gain of 2 write 0x01 to Base 3 14 3 Wait for analog input circuit to settle
57. for 1 or two drives 5 6981004 44 wire IDE cable for 1 or 2 drives 6 C PRZ 02 6 wire Ethernet cable with panel mount RJ 45 connector 7 6981005 6 wire auxiliary serial port cable 8 6981006 4 wire output power cable for external drives 9 6981009 9 wire input power cable with stripped tinned leads for connection to external power source d DIAMOND SYSTEMS CORPORATION Cable Kit C PRZ KIT Prometheus CPU User Manual V1 47 Page 70 26 VGA ACCESSORY BOARD The Prometheus development kit ships with a PC 104 VGA module from Arcom Control Systems model no AIM 104 VGA CRT OEM The Diamond Systems part no for this board is ACC VGA 02 The VGA board has several configuration jumpers LK1 LK3 Their functions are described in the board s documentation For proper operation with Prometheus jumper LK1 must be out The VGA output connector on the Arcom board is a 16 pin connector labeled PL5 located on the left edge of the board When used with the Diamond Systems panel board model PNL Z32 E EA this connector connects to the 10 pin VGA input header J25 on the panel board using Diamond Systems cable no 6981013 The pinout of this cable is shown below Each row represents one wire on the cable PL5 pin no PL5 Signal J25 pin no J25 Signal 1 Red 1 Red 2 Red Return 2 Ground 3 Green 3 Green 4 Not connected 4 Ground 5 Blue 5 Blue 6 Green Return 6 Ground 7 Not connected
58. full range of voltages on your input signals 13 3 Input Range Table The table below indicates the analog input range for each possible configuration The polarity is set with a jumper on jumper block J13 and the gain is set with the G1 and GO bits in the register at Base 3 The Gain value in the table is provided for clarity Note that the single ended vs differential setting has no impact on the input range or the resolution Polarit G1 GO Input Range Resolution 1 LSB Bipolar 0 0 10V 305uV Bipolar 0 1 5V 153uV Bipolar 1 0 2 5V 76uV Bipolar 1 1 1 25V 38uV Unipolar 0 0 Invalid Unipolar 0 1 0 10V 153uV Unipolar 1 0 0 5V 76uV Unipolar 1 1 0 2 5V 38uV K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 47 14 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 not with the driver software There are seven steps involved in performing an A D conversion 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 14 1 Select the input channel To select the input channel to read write a low channel high channel pair to the channel register at base 2 see page 35 The low 4 bits select the low chann
59. g 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 and the program may read the data Here are examples while inp base 3 amp 0x80 Wait for conversion to finish 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 II returns 0 if ok 1 if error int i for i 0 i lt 10000 i if inp base 3 amp 0x80 then return 0 conversion completed return 1 conversion didn t complete 14 6 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 is read back in two 8 bit bytes 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 s internal pointer advances and that byte is no longer available Note that 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 LSB inp base MSB inp base 1 Data MSB 256 LSB combine the 2 bytes into a 16 bit value The final data is interpreted as a 16 bit signed integer ranging from
60. gital I O is that all ports are reset to input mode and the logic state of their pins will be determined by the pull up pull down configuration setting selected by the user All A D counter timer interrupt and DMA functions will cease However the D A values will remain constant RSTDA Reset the 4 analog outputs The analog outputs will be reset to either mid scale or zero scale depending on the jumper configuration selected by the user A separate reset is provided for the D A so that the user may reset the board if needed without affecting the circuitry connected to the analog outputs RSTFIFO Reset the FIFO depth to 0 This clears the FIFO so that further A D conversions will be stored in the FIFO starting at address 0 CLRDMA Writing a 1 to this bit causes the DMA interrupt request flip flop to be reset CLRT Writing a 1 to this bit causes the timer interrupt request flip flop to be reset CLRD Writing a 1 to this bit causes the digital I O interrupt request flip flop to be reset CLRA Writing a 1 to this bit causes the analog interrupt request flip flop to be reset The user s interrupt routine must write to the appropriate bit prior to exiting in order to enable future interrupts Otherwise the interrupt line will stay high indefinitely and no additional interrupt requests will be generated by the board d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 33 Base 0 Read A D LSB Bit No Name AD7 0 A D d
61. id 10V 0 1 2 0 10V 5V 1 0 4 0 5V 2 5V 1 1 8 0 2 5V 1 25V d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 36 Base 3 Read Analog Input Status STS A D status 1 A D conversion or scan in progress 0 A D is idle If SCANEN 0 single conversion mode STS goes high when an A D conversion is started and stays high until the conversion is finished If SCANEN 1 scan mode enabled STS stays high during the entire scan After starting a conversion in software the program must monitor STS and wait for it to become 0 prior to reading A D values from Base 0 and Base 1 SD Single ended Differential mode indicator 1 SE 0 DI WAIT A D input circuit status 1 A D circuit is settling on a new value 0 ok to start conversion WAIT goes high after the channel register Base 2 or the gain register Base 3 is changed It stays high for 9 microseconds The program should monitor this bit after writing to either register and wait for it to become 0 prior to starting an A D conversion DACBSY Indicates the DAC is busy updating approx 30 pS 1 Busy O Idle Do not attempt to write to the DAC registers 6 and 7 while DACBSY 1 OVF FIFO Overflow bit This bit indicates that the FIFO has overflowed meaning that the A D circuit has attempted to write data to it when it is full This condition occurs when data is written into the FIFO faster than it is read out When overflow occurs the FIFO w
62. ill not accept any more data until it is reset The OVF condition is sticky meaning that it remains true until the FIFO is reset so the application program will be able to determine if overflow occurs If overflow occurs then you must either reduce the sample rate or increase the efficiency of your interrupt routine and or operating system SCANEN Scan mode readback see Base 3 Write above G1 G0 A D gain setting readback see Base 3 Write above d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 37 Base 4 Bit No Name CKSEL1 CKFRQ1 CKFRQO ADCLK DMAEN TINTE DINTE AINTE Read Write Interrupt DMA Counter Control 7 6 5s 3 2 fs 9 Clock source selection for counter timer 1 0 internal oscillator frequency selected by CLKFRQ1 1 external clock input CLK1 DIO C pins must be set for ctr timer signals Input frequency selection for counter timer 1 when CKSEL1 1 0 10MHz 1 100KHz Input frequency selection for counter timer 0 0 10MHz 1 1MHz A D trigger select when AINTE 1 0 internal clock output from counter timer 0 1 external clock input EXTTRIG Enable DMA operation 1 enable 0 disable Enable timer interrupts 1 enable 0 disable Enable digital I O interrupts 1 enable 0 disable Enable analog input interrupts 1 enable 0 disable NOTE When AINTE 1 the A D cannot be triggered by writing to Base 0 Analog
63. ions J5 Pin header Power connection to DC DC power supply input J12 Pin header Power connection to from DC DC power supply J25 Pin header Pass through connector for VGA board Panel Board Bottom Side Internal Use I O Connectors 23 3 Panel Board Cables The panel board ships with a 10 wire video cable DSC part no 6981010 and a 2 wire power cable DSC part no 6981011 These are intended for use with the optional accessory video board and a Jupiter MM JMM power supply when these boards are used together with the Prometheus CPU and panel board The 10 wire video cable connects the VGA output of the video board to pin header J25 on the panel board J25 is compatible with a number of companies PC 104 video boards that provide a 10 pin connector for the video out 23 4 Panel Board Hardware The panel board also comes with mounting hardware for installing it and the CPU into an enclosure such as the Pandora system K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 65 23 5 Panel Board Power Connections Prometheus requires only 5V for operation The panel boad is simply a connector board and requires no power Make sure that the power supply used has enough current capacity to drive your system The Prometheus CPU requires up to 1 1A If you have a disk drive or other modules connected you need additional power In particular many disk drives need extra current during startup If your system fails to boot
64. ister Bit Definitions In these register definitions a bit marked X is an unused bit All unused bits in readable registers read back as 0 Base 0 Write Command Register name _ STRTAD RSTERO ASTOR ASTRIFO GLROWA GUAT creo Tas This register is used to perform various functions The register bits are not data bits but instead command triggers Each function is initiated by writing a 1 to a particular bit Writing a 1 to any bit in this register does not affect any other bit in this register For example to reset the FIFO write the value 0x10 16 to this register to write a 1 to bit 4 No other function of the register will be performed Multiple actions can be carried out simultaneously by writing a 1 to multiple bits simultaneously STRTAD Start an A D conversion trigger the A D when in software trigger mode AINTE 0 Once the program writes to this bit the A D conversion will start and the STS bit base 3 bit 7 will go high The program should then monitor STS and wait for it to go low check if value in base 3 is less than 128 or 0x80 When it goes low the A D data at Base 0 and Base 1 may be read When AINTE 1 base 4 bit 0 the A D cannot be triggered by writing to this bit Instead the A D will be triggered by a signal selected by ADCLK in base 4 bit 5 RSTBRD Reset the entire board excluding the D A Writing a 1 to this bit causes all registers on the board to be reset to 0 The effect on the di
65. ly be done after it has been formatted and loaded with operating system files see below otherwise your system will not boot e Save and exit the BIOS by hitting the F10 key Operating System Formatting e Attach a floppy drive to Prometheus e Boot to a DOS system disk in the floppy drive e Atthe A prompt type format b s to format the Onboard Flash drive with the system files e To make this drive a bootable A drive reboot the system and re enter the BIOS Go back to the Boot menu to change the boot order by listing the Onboard Flash before the Legacy Floppy Drive d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 24 Known Limitations e RFD onboard flash drive is not compatible with DOS expanded memory configuration in EMM386 EXE Use the NOEMS switch appended to the end of the EMM386 line in your config sys to bypass EMS Example line in config sys device c DOS EMM386 exe NOEMS e The onboard flash chip has a limitation of 2 000 000 erase cycles so swap drives or virtual memory functions should not be used e Currently we are shipping 2M byte Flash chips so Onboard Flash drives can be formatted with 1 45M bytes left over 4 and 8M byte versions can be custom ordered Contact sales diamondsystems com for more information e Only 16 bit OS s are supported for this Onboard Flash MSDOS 6 22 and ROMDOS 6 22 and 7 0 have been tested Other OS s may work as long as it has some sort of 1
66. ly onto the PC 104 bus through the PC 104 bus connectors on the power supply In this application use the 2 wire power cable no 6981011 This cable contains a blue positive wire and a black negative wire Connect the blue wire to the screw terminal on the JMM power supply input connector and connect the black wire to the terminal Either J4 or J5 on the JMM board may be used for the power connection J12 is used when the supply voltages are intended to be switched by the ATX circuit on Prometheus In this application the input and output of the power supply are connected to J12 The 5V and 12V are controlled by the ATX function while the 5V and 12V are connected directly to the PC 104 bus pins 12V In 5V In Ground 5V In 5V In 12V In Ground Power Input Ground 10 Shutdown ATX CO OO N O RECH Pho gt J12 pinout to from DC DC power supply d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 66 Power Switch Power Input 12V In 5V In Ground Power Input Shutdown 5V In Ground CO N Od On amp Go Po gt J13 pinout user connection 23 6 Speaker and Miscellaneous Connector J3 is used for optional connection of an auxiliary speaker or control switches The panel board contains a miniature speaker which is enabled by default To enable this speaker install a jumper across pins 11 and 13 of J3 def
67. n A D conversion is triggered the low channel will be sampled When this register is written to the WAIT bit Read Base 3 bit 5 will go high for 10 microseconds to indicate that the analog input circuit is settling During this time an A D conversion should not be performed because the data will be inaccurate After writing a new gain setting Base 3 the WAIT bit is also set and the program must monitor it prior to starting an A D conversion The channel and gain registers can be written to in succession without waiting for the intervening WAIT signal Only one WAIT period must be observed between the last triggering condition write to Base 2 or Base 3 and the start of an A D conversion The A D circuit is designed to automatically increment the A D channel each time a conversion is generated This enables the user to avoid having to write the A D channel each time The A D channel will rotate through the values between LOW and HIGH For example if LOW 0 and HIGH 3 the A D channels will progress through the following sequence 0 1 2 3 0 1 2 3 0 Ayia ce Reading from this register returns the value previously written to it d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 35 Base 3 Write Analog Input Gain en x x x x x scanner oo SCANEN Scan mode enable 1 Each A D trigger will cause the board to generate an A D conversion on each channel in the range LOW HIGH the range is
68. n on the counter timer control register bits and how to perform various functions using these counters 20 1 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 a clock input a gate input and an output The input is a 1OMHz or 1MHz clock provided on the board and selected with bit CKFRQO in Base 4 bit 5 The gate is an optional signal that can be input on pin 21 of the I O header J14 when DIOCTR Base 11 bit 7 is 1 If this signal is not used then the counter runs freely The 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 appears on pin 24 of the I O header when DIOCTR 1 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 100ns or 1s depending on the input clock selected by CKFRQ0O It then reloads to the initial load value and repeats the process indefinitely The output frequency can range from 5MHz 10MHz clock divisor 2 down to 0 06Hz 1MHz clock divided by 16 777 215 or 2 41 The output is fed into the A D timing circuit and can be selected to trigger A D conversions when AINTE is 1 and ADCLK is 0 in Base 4 Using the control register at Base 15 the counter can be loaded cleared enabled and disabled the optional gate can b
69. nalog I O version and connectors on 3 sides for the E no analog I O version When the boards are properly mated the 80 pin high density connectors on the right edges of the boards will seat completely while the pin headers on the other sides will show a slight gap This is normal and does not cause any problem with reliable connections on these connectors If you do not install the 14mm spacers between the two boards you will still be able to mate the two boards satisfactorily but they will be slightly tilted since the high density connector has a slightly larger board to board distance than the other pin headers The board stack may be mounted inside the Pandora enclosure in one of two ways The stack may hang from the front panel or it may be mounted to both the front and rear panel The assembly drawings included with the Pandora enclosure show both options The stack mounts to the front panel with four 4 flat head screws that install onto the four spacers on the top of the panel board as well as 14 4 screwlocks that connect to the 7 Dsub connectors on the panel board Finally select one of the two options for fixing the bottom of the stack Either install four 4 pan head screws on the bottom of the CPU board into the four spacers between it and the panel board or attach the four 0 6 male female round PC 104 spacers on the bottom of the board and then install four 4 flat head screws through the case s rear panel into the PC
70. nd the Prometheus board Some of these features are described here To enter the BIOS during system startup POST power on self test press F2 Serial Ports The address and interrupt settings for serial ports COM1 COM4 may be modified COM1 and COM2 address and interrupt settings are done in the BIOS Advanced menu I O Device Configuration See page 27 for details The addresses of COM3 and COM4 are configurable in the BIOS Select Advanced menu Advanced Chipset Control ISA I O Chip Select Setup See page 27 for details Parallel Port The parallel port settings may be modified on the same screen as serial ports COM1 and COM2 I O Device Configuration Data Acquisition The on board data acquisition circuit is modified on the same screen as serial ports COM3 and COM4 ISA I O Chip Select Setup Floppy IDE Settings On the Advanced screen I O Device Configuration the following settings should be retained Floppy disk controller Enabled Base I O address Primary Local Bus IDE adapter Primary Miscellaneous On the Advanced screen the following settings should be retained USB Host Controller Enabled USB BIOS Legacy Support Disabled Legacy support is not currently provided Installed O S Other Large Disk Access Mode DOS Remote Management Baud Rate Ignore feature not supported on Prometheus On the PCI Configuration page from the Advanced screen the following setting should be retained ISA Graphic
71. ns Programmable gate and count enable Internal and external clocking capability Prometheus CPU User Manual V1 47 Page 6 3 PROMETHEUS BOARD DRAWING 3 550 IN e IDE Pin 1 0 350 IN 2 187 IN 3 250 IN FDD Pin 1 0 560 IN 2 325 IN 3 715 IN 2 PLCS 3 575 IN ULL ET AHA hu 3 135 IN Pin 50 3 010 IN Connector 3 404 IN Mtg Hole IDE Pin 1 Flash Disk Mounting Location Connector Mtg Hole 0 710 IN 2 PLCS 0 200 IN Ce 1 2 Pa e SEN E CT sas 0 900 IN 2 350 IN Tur u ie IN 0 230 IN 200 IN 3 350 IN PIN 1 MARK UO Connectors J1 PC 104 8 bit bus connector J2 PC 104 16 bit bus connector J3 Main user I O connector J4 Ethernet port J5 Dual USB ports J7 Floppy drive connector J8 IDE drive connector J9 External battery connector J11 Input power connector J12 Switched output power connector J14 Data acquisition I O connector J15 Auxiliary serial port connector Configuration Jumper Blocks J6 System recovery jumper block J10 System configuration jumper block J13 Data acquisition circuit configuration jumper block K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 7 4 1 O HEADERS All cables mentioned in this chapter are included in Diamond Systems cable kit C PRZ KIT These cables are further described in chapter 25 Some cables are also available individually 4 1 Main I O Connector J3 An 80 pin high density connector is provided for access to
72. nter timer functions serial ports and power supply PROMETHEUS BLOCK DIAGRAM IDE FLOPPY KEYBOARD MOUSE 4 SERIAL PARALLEL DTM ZFx PROCESSOR IrDA 2 USB WATCHDOG UU PCI BUS MAC PHYTER MAGNETICS ETHERNET PROGRAMMABLE GAIN DATA 16 ANALOG ACQUISITION 16 BIT A D INPUT CONTROLLER 4 ANALOG OUTPUT 12 BIT D A 24 DIGITAL ISA PC 104 BUS yo 4 DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 4 2 FEATURES System Features Processor Section 486 DX2 processor running at 100MHz with co processor Pentium class platform including burst mode SDRAM and PCl based IDE controller and USB 32MB SDRAM system memory 50MHz memory bus for improved performance 2MB 16 bit wide integrated flash memory for BIOS and user programs 8KB unified level 1 cache ef gt Oo IO 4 serial ports 115 2kbaud max 2 ports 16550 compatible 2 ports 16850 compatible with 128 byte FIFOs 2 full featured powered USB ports 1 ECP compatible parallel port Floppy drive connector IDE drive connector 44 pin version for notebook drives Accepts solid state flashdisk modules directly on board 100BaseT full duplex PCI bus mastering Ethernet 100Mbps IrDA port requires external transceiver PS 2 keyboard and mouse ports Speaker LEDs ef gt gt gt OH HH H FT FH o System Features Plug and play BIOS with IDE autodetection 32 bit IDE access and LBA support Built in fail safe boot ROM for sy
73. nunnnannnannnnaa 74 K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 3 PROMETHEUS High Integration PC 104 CPU with Ethernet and Data Acquisition 1 DESCRIPTION Prometheus is an embedded PC 104 CPU that integrates 3 separate circuits onto a single compact board e CPU Ethernet Analog I O optional model PR Z32 EA only A detailed list of features is shown on the next page Prometheus conforms to the PC 104 standard 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 in each corner The result is an extremely rugged computer system fit for mobile and miniature applications PC 104 modules stack together with 0 6 spacing between boards 0 662 pitch including the thickness of the PCB A mechanical drawing of a standard PC 104 board is shown on page 74 For more information on PC 104 visit www pc104 org Prometheus 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 Only the ISA bus is brought out to expansion connectors for the connection of add on boards Diamond Systems manufactures a wide variety of compatible PC 104 add on board for analog I O digital I O cou
74. or interrupt routine you should conform to the described behavior for optimum results d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 51 Prometheus A D Operating Modes The following control bits and values are referenced in the descriptions in the table below AINTE Base 4 bit 0 SCANEN Base 3 bit 2 FIFO threshold Base 5 bits 5 0 STS Base 3 bit 7 LOW HIGH 4 bit channel nos in Base 2 ADCLK Base 4 bit 4 AINTE SCANEN Operation 0 0 Single A D conversions are triggered by write to B 0 STS stays high during the A D conversion No interrupt occurs The user program monitors STS and reads A D data when it goes low 0 1 A D scans are triggered by write to B 0 All channels between LOW and HIGH will be sampled STS stays high during the entire scan multiple A D conversions No interrupt occurs The user program monitors STS and reads all A D values when it goes low 1 0 Single A D conversions are triggered by the source selected with ADCLK STS stays high during the A D conversion A D interrupt occurs when the FIFO reaches its programmed threshold The interrupt routine reads out a number of samples equal to the FIFO threshold each time it runs 1 1 A D scans are triggered by the source selected with ADCLK STS stays high during the entire scan multiple A D conversions A D interrupt occurs when the FIFO reaches its programmed threshold The interrupt routine reads out a number of samples e
75. ou can enter the BIOS by pressing F2 during this time In the default configuration after POST is finished and the CPU boots console redirection is disabled There are three possible configurations for console redirection e POST only default e Always On Disabled To modify the console redirection settings enter the BIOS select the Advanced menu and then select Console Redirection 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 CMOS RAM which will return the BIOS to its default settings CMOS RAM may be erased by moving a jumper See page 16 for instructions 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 will return to the default settings of 115 2Kbaud N 8 1 and operate only during POST If you selected COMA or COMB then continue with the configuration For Console Type select PC ANSI You can modify the baud rate and flow control here if desired At the bottom for Continue C R after POST select Off default to turn off after POST or select On to remain on always Exit the BIOS and save your settings
76. ounter 1 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 d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 59 20 3 Command Sequences Diamond Systems provides driver software to control the counter timers on Prometheus The information here is intended as a guide for programmers writing their own code in place of the driver and also to give a better understanding of the counter timer operation The counter control register is shown below Base 15 Write Counter Timer Control Register nome reno rare eros Gren cros cren vom ag To make a counter run load and enable a counter 1 Load the desired initial value into the counter 2 If you 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 will ignore incoming clock edges The gating may be enabled or disabled at any time When gating is disabled the counter will count all incoming edges When gating is enabled if the gate is high the counter will count all incoming edges and if the gate is low the counter will ignore incoming clock edges
77. output interrupts are not supported on this board Multiple interrupt operations may be performed simultaneously All interrupts will be on the same interrupt level The user s interrupt routine must monitor the status bits to know which circuit has requested service After processing the data but before exiting the interrupt routine must then clear the appropriate interrupt request bit using the register at Base 0 Base 5 Bit No Name FT5 0 Read Write FIFO Threshold FIFO threshold When the number of A D samples in the FIFO reaches this number the board will generate an interrupt and set AINT high Base 7 bit 4 The interrupt routine is responsible for reading the correct number of samples out of the FIFO The valid range is 1 48 If the value written is greater than 48 then 48 will be used If the value written is 0 then 1 will be used The interrupt rate is equal to the total sample rate divided by the FIFO threshold Generally for higher sampling rates a higher threshold should be used to reduce the interrupt rate However remember that the higher the FIFO threshold the smaller the amount of FIFO space remaining to store data while waiting for the interrupt routine to respond If you get a FIFO overflow condition you must lower the FIFO threshold and or lower the A D sampling rate d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 38 Base 6 Bit No Name DA7 0 Base 6 Bit No
78. p the system again Enter the BIOS F2 and change the bootup sequence to boot from hard disk C which now means the flashdisk module d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 29 10 DATA ACQUISITION CIRCUIT Model PR Z32 EA contains a data acquisition subsystem consisting of A D D A digital I O and counter timer features This subsystem is equivalent to a complete add on data acquisition module The A D section includes a 16 bit A D converter 16 input channels and a 48 sample FIFO Input ranges are programmable and the maximum sampling rate is 100KHz The D A section includes 4 12 bit D A channels The digital I O section includes 24 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 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 the interrupt occurs when the FIFO reaches this threshold Once the interrupt occurs an interrupt routine runs and reads the data out of 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 operating systems the circuit can operate at sampling rates of up to 100KHz with an interrupt rate of 6 6 10KHz An interrupt rate of above approximately 2KHz is difficult to s
79. patible with the floppy drive power connector on a standard PC internal power cable J3 To IDE Includes Power FlashDisk Programmer J1 To CPU J7 IDE Connector J4 J2 FlashDisk Module Q J2 J4 To IDE Needs Power Ji 1 J3 1 ASSY NO 881001 OOOOOOOOOOOOOD 00000000000000 C 2001 Diamond Systems Corp ACC IDEEXT FlashDisk Programmer Board K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 69 ZP UO CABLES When the panel I O board PNL Z32 is used no cabling or wiring is required to operate the CPU unless you want to connect to an external IDE drive or floppy drive However for custom installations as well as development Diamond Systems offers a cable kit no C PRZ KIT with 9 cables to connect to all I O headers on the board Some cables are also available separately The mating cable for each I O connector is listed in Chapter 4 NOTE When the multi I O cable C PRZ 01 or any other cable is connected to serial ports 1 or 2 the serial port signals must terminate to another board or interference problems may occur that will slow down the performance of your CPU Photo No Cable No Description 1 6981012 Dual USB cable 2 C PRZ 01 80 wire 2 cable breakout cable assembly with serial parallel PS 2 mouse keyboard power reset speaker amp LED connectors 3 C 50 18 50 wire data acquisition cable 4 6981008 34 wire floppy cable
80. qual to the FIFO threshold each time it runs K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 52 16 ANALOG OUTPUT RANGES AND RESOLUTION 16 1 Description Prometheus uses a 4 channel 12 bit D A converter DAC to provide 4 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 21 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 1 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 same thing 16 2 Resolution The resolution is the smallest possible change in output voltage For a 12 bit DAC the resolution is GI or 1 4096 of the full scale output range This smallest change results from an increase or decrease of 1 in the D A code and so this change is referred to as 1 LSB or 1 least significant bit The value of this LSB is calculated as follows 1 LSB Output voltage range 4096 Example Output range 0 10V Output voltage range 10V OV 10V 1 LSB 10V 4096 2 44mV Example Output range 10V Output voltage range 10V 10V 20V 1 LSB 20V 40
81. re only a single wire each In this case the first 4 pins may be connected to a standard 4 pin miniature PC power connector if desired For a larger PC 104 stack the total power requirements should be calculated to determine whether additional wires are necessary 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 will turn on power and holding the switch on for 4 seconds or longer will turn off power Diamond Systems cable no 6981009 mates with J11 It provides 9 color coded wires with stripped and tinned leads for connection to user supplied power sources This cable may also be used with Diamond Systems Jupiter MM series power supplies in vehicle based applications In this configuration the input power is supplied to the Jupiter MM board and the Jupiter MM output power is connected to J11 on the CPU using cable 6981009 When used in this way make sure the two red 5V wires are both connected to the 5V output screw terminal on Jupiter MM d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 10 4 3 Output Power J12 5V Out Ground Ground 12V Out BJ INN A J12 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 Diamond Systems
82. rsions on that channel Adjust R67 until the A D value is 0 1 To eliminate the effects of noise it is best to take a number of readings and average the values 18 3 A D full scale Potentiometer R74 is used for adjustment Configure the circuit for Bipolar A D mode 10V Input 9 9945V to any input channel and perform A D conversions on that channel using a gain setting of 1 Single ended vs differential mode does not matter Adjust R74 until the average A D value is 32750 To eliminate the effects of noise it is best to take a number of readings and average the values Any input voltage and A D reading near the top of the range 10V can be used for the calibration target voltage reading The above value is provided as an example 18 4 D A full scale Potentiometer R89 is used for adjustment Configure the D A for 0 10V output range Write the output code of 4095 to all four D A channels Measure each one and adjust R89 until the average reading is as close to 9 9976 as possible d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 57 19 DIGITAL UO OPERATION Prometheus contains 24 digital I O lines organized as three 8 bit I O ports A B and C The direction for each port is programmable and port C is further divided into two 4 bit halves each with independent direction The ports are accessed at registers Base 8 through Base 10 respectively and the direction register is at Base 11 Base 7 6 5
83. s Device Installed No PCI IRQ Level 1 4 Autoselect for all PCI PNP ISA UMB Region Exclusion Available for all The features on the Power screen are not supported on Prometheus d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 22 7 2 BIOS Download 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 Prometheus contains a special failsafe Boot Up ROM BUR that can be activated on power up A Diamond Systems software utility is provided to enable system recovery by downloading the BIOS to the flash memory through serial port COM1 when the CPU is booted up to the BUR The recovery procedure requires another PC running Windows 95 or Windows 98 This host machine is connected to the Prometheus CPU using a null modem serial cable connected to COM1 on each computer Three files are required on the host PC Zftrm exe Loadbios com and the file containing the BIOS Prm1 rom These files should be in the same directory PC Serial Port End DB 9 Prometheus COM1 end Corresponding pin on J6 2 RX 3 TX 2 TX 3 TX 2 RX 1 RX 5 Ground 5 Ground 3 Ground Null modem cable required pinout To boot up the Prometheus CPU to BUR set the jumper on J6 on Prometheus to the BUR position If using the Panel I O board press the
84. s manual All Prometheus boards shipped on or after Septeember 23 2002 include the Disk On Board feature Initial Setup e Install BIOS version 1 07M or later if not already installed Earlier versions of the Prometheus BIOS do not support this feature Please see the BIOS recovery section of the users manual or the instructions included with the BIOS upgrade package on our website e Boot the system and enter the BIOS setup by pressing F2 early in the boot up e Go to Advanced gt Advanced Chipset Control and enable the Flash Virtual Drive e Save and exit the BIOS by hitting F10 WARNING Do not skip this step e The system will boot again Reenter the BIOS after it boots by hitting the F2 key e Go to Advanced gt Advanced Chipset Control again Highlight FLASH Initialize then hit lt enter gt You will see a percentage complete indicator After completion the BIOS will return to the Advanced screen WARNING When you press enter the flash memory will be initialized and erased Any data currently in the flash except the BIOS will be lost e Hut the lt ESC gt key to return to the main tabbed menus e Go to the Boot tab e Highlight Removable Devices and hit lt enter gt e The Onboard Flash will be listed after Legacy Floppy Drives This will make it a non bootable B drive You can change it to a bootable A drive by hitting the lt gt or lt gt key to move it to the top This should on
85. set with the channel register in Base 2 The STS bit read Base 3 bit 7 stays high during the entire scan 0 Each A D trigger will cause the board to generate a single A D conversion on the current channel The internal channel pointer will increment to the next channel in the range LOW HIGH or reset to LOW if the current channel is HIGH The STS bit stays high during the A D conversion G1 G0 Analog input gain The gain is the ratio of the voltage seen by the A D converter and the voltage applied to the input pin The gain setting is the same for all input channels When this register is written to the WAIT bit Read Base 3 bit 6 will go high for 10 microseconds to indicate that the analog input circuit is settling During this time an A D conversion should not be performed because the data will be inaccurate After writing a new gain setting the program should monitor the WAIT bit prior to starting an A D conversion After writing a new channel selection Base 2 the WAIT bit is also set and the program must monitor it prior to starting an A D conversion The channel and gain registers can be written to in succession without waiting for the intervening WAIT signal Only one WAIT period must be observed between the last triggering condition write to Base 2 or Base 3 and the start of an A D conversion The following table lists the possible analog input ranges G1 GO Gain Unipolar Range Bipolar Range 0 0 1 Inval
86. stem recovery in case of BIOS corruption User selectable COM2 terminal mode On board lithium backup battery for real time clock and CMOS RAM ATX power switching capability Programmable watchdog timer Power surge monitor for fail safe operation Zero wait state capability for flash memory and PC 104 bus 5V only operation Extended temperature range operation 40 to 85 C Cable free operation when used with Diamond Systems PNL Z32 Panel I O board ef gt gt gt gt gt o FT o o d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 5 Data Acquisition Subsystem Model PR Z32 EA Only Analog Input 16 single ended 8 differential inputs 16 bit resolution 100KHzZ maximum aggregate A D sampling rate Programmable input ranges gains with maximum range of 10V 0 10V Both bipolar and unipolar input ranges e 5 ppm C drift accuracy Internal and external A D triggering 48 sample FIFO for reliable high speed sampling and scan operation Analog Output 4 analog outputs 12 bit resolution e 10V and 0 10V output ranges Simultaneous update Adjustable output range optional Digital UO 24 programmable digital I O 3 3V and 5V logic compatible Enhanced output current capability 8 12mA max Counter Timers d DIAMOND SYSTEMS CORPORATION 1 24 bit counter timer for A D sampling rate control 1 16 bit counter timer for user counting and timing functio
87. t ATA Enabled 5 2 J6 Watchdog Timer amp System Recovery J6 is used to configure the watchdog timer and enable system recovery failsafe mode in case of BIOS corruption This jumper has different dimensions than J10 and J13 and the jumpers are not interchangeable Watchdog timer operation is described in detail on page 20 Failsafe mode operation is described on page 21 K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 17 6 SYSTEM FEATURES 6 1 System Resources The table below lists the default system resources utilized by the circuits on Prometheus Device Address Hex IRQ DMA Serial Port COM1 1 O 3F8 3FF 4 Serial Port COM2 1 O 2F8 2FF 3 Serial Port COM3 1 O 3E8 3EF 4 Serial Port COM4 1 O 2E8 2EF 3 Parallel Port LPT1 1 O 378 37F 7 3 IDE Controller 1 0 1FO 1F7 14 Floppy Controller A D Circuit PR Z32 EA only UO 280 28F 5 Ethernet 1 O 1000 10 USB 11 6 2 CPU Chip Selects The ZF Micro CPU chip contains 4 user configurable I O chip selects and 4 user configurable memory chip selects These chip selects are visible in the BIOS setup screens Three of the I O chip selects are used by the Prometheus design Chip selects 1 and 2 are used for the two serial ports COM3 and COM4 Chip select 3 is used by the data acquisition circuitry on model PR Z32 EA Chip select 0 is not used
88. th the Prometheus documents or with Diamond Systems Universal Driver software The failsafe feature is described on page 21 of this manual d DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 12 4 9 Floppy Drive J7 Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 High Density Unused Unused Index Motor Enable Drive Select B Drive Select A Motor Enable Direction Step Write Data Write Enable Track 0 Write Protect Read Data Select Protect Disk Change J7 is a 2x17 pin header It mates with Diamond Systems cable no 6981008 or any standard floppy drive interface cable Up to two floppy drives can be connected The connector furthest away from the others is used to connect to the board The connector at the far end of the cable after the twist is for Drive A and the middle connector is for Drive B 4 10 IDE Drive J8 5V Ground 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 D15 Key Not Used Ground Ground Ground Ground Ground Pulled low for 16 bit operation Not Us
89. the standard user I O 4 serial ports e PS 2 keyboard ATX Power switch Parallel port e PS 2 mouse Reset switch Watchdog timer I O IrDA port Power and HDD LEDs This connector mates with Diamond Systems cable no C PRZ 01 which consists of a dual ribbon cable assembly with industry standard connectors at the user end The CPU mating connector includes integral latches for enhanced reliability Each ribbon cable has 40 wires Cable A Cable B 1 DCD1 1 STB 2 DSR 1 2 AFD 3 RXD 1 3 PDO 4 RTS 1 4 ERR COM 1 5 TXD 1 5 PD1 6 CTS 1 6 INIT 7 DTR 1 7 PD2 8 RI 1 8 SLIN 9 Ground 9 PD3 10 DCD2 10 Ground 11 DSR2 11 PD4 12 RXD2 12 Ground 13 RTS 2 LPT 1 13 PD5 COM 2 14 TXD2 14 Ground 15 CTS 2 15 PD6 16 DTR2 16 Ground 17 RI2 17 PD7 18 Ground 18 Ground 19 DCD3 19 ACK 20 DSR3 20 Ground 21 RXD3 21 BUSY 22 RTS3 22 Ground COM 3 23 TXD3 23 PE 24 CTS3 24 Ground 25 DTR3 25 SLCT 26 RI3 26 KB Clk 27 Ground 27 KB MS V 28 DCD 4 Keyboard 28 KB Data 29 DSR 4 29 KB MS V 30 RXD 4 30 MS Clk 31 RTS 4 31 KB MS V COM A 32 TXD4 Mouse 32 MS Data 33 CTS 4 33 KB MS V 34 DTR4 34 Groun
90. theus CPU User Manual V1 47 Page 42 Base 15 Write Counter Timer Control Register nome reno taro oros Gren cros cren com ag This register is used to control the counter timers A counter is selected with bit 7 and then a 1 is written to any ONE of bits 6 0 to select the desired operation for that counter The other bits and associated functions are not affected Thus only one operation can be performed at a time CTRNO Counter no 0 or 1 LATCH Latch the selected counter so that its value may be read The counter must be latched before it is read Reading from registers 12 14 returns the most recently latched value If you are reading Counter 1 data read only Base 12 and Base 13 Any data in Base 14 will be from the previous Counter 0 access GTDIS Disable external gating for the selected counter GTEN Enable external gating for the selected counter If enabled the associated gate signal GATEO or GATE1 controls counting on the counter If the GATEn signal is high counting is enabled If the GATEn signal is low counting is disabled CTDIS Disable counting on the selected counter The counter will ignore input pulses CTEN Enable counting on the selected counter The counter will decrement on each input pulse LOAD Load the selected counter with the data written to Base 12 through Base 14 or Base 12 and Base 13 depending on which counter is being loaded CLR Clear the current counter set its v
91. tion with the FIFO determine the behavior of the board during A D conversions and interrupts At the end of an AD conversion the 16 bit A D data is latched into the 8 bit FIFO in an interleaved fashion first LSB then MSB A D Data is read out of the FIFO with 2 read operations first Base 0 LSB and then Base 1 MSB When SCANEN 1 each time an A D trigger occurs the board will perform an A D conversion on all channels in the channel range programmed in Base 2 When SCANEN O each time an A D trigger occurs the board will perform a single A D conversion and then advance to the next channel and wait for the next trigger During interrupt operation AINTE 1 the FIFO will fill up with data until it reaches the threshold programmed in the FIFO threshold register and then the interrupt request will occur If AINTE 0 the FIFO threshold is ignored and the FIFO continues to fill up If the FIFO reaches its limit of 48 samples then the next time an A D conversion occurs the Overflow flag OVF will be set In this case the FIFO will not accept any more data and its contents will be preserved and may be read out In order to clear the overflow condition the program must reset the FIFO by writing to the FIFORST bit in Base 1 or a hardware reset must occur 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
92. tween these 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 Prometheus are at different voltages or when a low level signal is being 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 so the noise will be canceled out 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 Prometheus can be configured for either 16 single ended inputs or 8 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 WARNING The maximum range of voltages that can be applied to an analog input on Prometheus without damage is 35V If you connect the analog inputs on Prometheus 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 Prometheus before connecting analog input signals Unipolar Bipolar Inputs The analog inputs c
93. 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 11 2 or 1 65536 of the full scale input range This smallest change results in an increase or decrease of 1 in the A D code and so this change is referred to as 1 LSB or 1 Least Significant Bit The analog inputs on Prometheus have three configuration options Single ended or differential mode e Unipolar or bipolar mode Input range gain The single ended differential and unipolar bipolar configuration is done with a jumper on jumper block J13 see page 45 and the input range selection is done in software 13 2 Input Range Selection Prometheus can be configured to measure both unipolar positive only and bipolar positive and negative analog voltages This configuration is done with a jumper 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 ona 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 However if you pick too high a gain then the A D converter will clip at either the high end or low end and you will not be able to read the
94. uit 4 Scroll down to CS1 CS2 and CS3 Change the setting Window State for each of these chip selects to Disable This temporarily disables COM3 COM4 and the Data Acquisition System 5 Save the new settings and exit the BIOS 6 The system will now boot to DOS from the floppy drive 9 2 Installing an OS From a Floppy Drive onto a Flashdisk Module 1 Make sure the flashdisk module jumper is configured for Master 2 Install the flashdisk module onto the CPU See installation instructions on page 63 3 Follow the instructions above for booting to a floppy drive 4 If necessary run FDISK and perform the following steps a Remove all partitions on the flashdisk module b Create a primary DOS partition on the flashdisk module c Make the DOS partition the active partition d Save your changes and exit Boot the system again from the floppy disk Format the flashdisk module using FORMAT C S Copy the operating system files and any other needed files to the flashdisk module Reboot your system and enter the BIOS during startup Go to the Advanced screen then select Advanced Chipset Control ISA I O Chip Select Setup Reenable chip selects CS1 through CS3 10 Go to the Boot screen and change the boot sequence to boot from hard disk 11 Save the new settings and exit the BIOS 12 Power down the system and disconnect the floppy drive 13 The system is now able to boot from the flashdisk module OWN d DIAMOND SYSTEM
95. ustain in Windows without the possibility of missing samples The A D circuit uses the default settings of I O address range 280h 28Fh base address 280 and IRQ 5 These settings can be changed if needed The I O address range is changed in the BIOS and the interrupt level is changed with jumper block J10 DATA ACQUISITION BLOCK DIAGRAM DATA ACQUISITION VO HEADER PROGRAMMABLE GAIN AMP ANALOG iii SUPPLIES 8 ANALO e INPUTS 15V 15V CONTROLLER CHIP DC DC 5V 4 ANALOG OUTPUTS EXTERNAL TRIGGER D o V KE CTR O INTERRUPT 24 DIGITAL YO a PC 104 BUS DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 30 11 DATA ACQUISITION CIRCUITRY UO MAP 11 1 Base Address The data acquisition circuitry on Prometheus occupies a block of 16 bytes in I O memory space The default address range for this block is 280h 28Fh base address 280 This address should work for most applications but it can be changed in the BIOS if necessary Go to the Advanced screen and select Advanced Chipset Control then ISA I O Chip Select Setup Scroll down to I O Window io_cs3 which is used for the data acquisition circuit Do not change any setting other than the base address or the circuit will not function properly Make sure the selected address range does not conflict with any other circuit on the CPU or any add on module Here are the proper settings Window state Enabled Base Address user sele
96. versal Driver software version 5 1 and later K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 20 6 5 Failsafe Mode BIOS Recovery The ZFx86 failsafe feature consists of a small command interpreter built in to the ZFx86 CPU chip The ZFx86 contains a ROM with the command interpreter as well as an 8KB RAM It may be used to power up the system and download the BIOS to recover from situations in which the BIOS accidentally becomes corrupted or erased The failsafe feature is used in the factory to program the BIOS in new Prometheus boards for the first time To enable the failsafe feature when the panel board is not used install a jumper between pins 1 and 3 of J6 on Prometheus To enable failsafe feature when the panel board is used press the ZFIX button on the panel board while pressing and releasing the Reset button the ZFIX button must be released after the Reset button is released During the next system reset the board will power up to the failsafe boot ROM and provide user I O through COM1 At this point the DSC utility program ZFTERM EXE may be used to download the BIOS to the board See the information in the Utilities BIOS Recovery folder of the Prometheus files area of the DSC customer CD for instructions on using this program 6 6 Flash Memory Prometheus contains a 2Mbyte 16 bit wide flash memory chip for storage of BIOS and optional user files The BIOS occupies the upper 256Kbytes leaving the rest availa
97. version Formula for Bipolar Input Ranges Input voltage A D value 32768 Full scale input range Example Input range is 5V and A D value is 17761 Input voltage 17761 32768 5V 2 710V For a bipolar input range 1 LSB 1 32768 Full scale voltage Here is an illustration of the relationship between A D code and input voltage for a bipolar input range Vrs Full scale input voltage AID Code Input voltage symbolic formula Input voltage for 5V range 32768 Ves 5 0000V 32767 Ves 1 LSB 4 9998V 1 1 LSB 0 00015V 0 0 0 0000V 1 1LSB 0 00015V 32767 Ves 1 LSB 4 9998V Conversion Formula for Unipolar Input Ranges Input voltage A D value 32768 65536 Full scale input range Example Input range is 0 5V and A D value is 17761 Input voltage 17761 32768 65536 5V 3 855V For a unipolar input range 1 LSB 1 65536 Full scale voltage Here is an illustration of the relationship between A D code and input voltage for a unipolar input range Vrs Full scale input voltage AID Code Input voltage symbolic formula Input voltage for 0 5V range 32768 ov 0 0000V 32767 1 LSB Ves 65536 0 000076V 1 Ves 2 1LSB 2 4999V 0 Vrs 2 2 5000V 1 Mee 2 1 LSB 2 5001V 32767 Von 1 LSB 4 9999V K DIAMOND SYSTEMS CORPORATION Prometheus CPU User Manual V1 47 Page 50 15 A D SCAN INTERRUPT AND FIFO OPERATION The control bits SCANEN scan enable and AINTE A D interrupt enable in conjunc
98. with metric length will have metric threads for example M3 x 0 5 Diamond Systems can supply a custom designed 14mm aluminum hex male female spacer with 4 40 threads DSC part no 684045 Using the board in this manner eliminates all connecting cables for most applications All connections except IDE floppy drive and switched power output are accessible through the vertical I O headers on the board If you need to use IDE floppy or switched power output you will need to use cables to access the corresponding I O headers The following is a list of I O headers that mate with the corresponding vertical mount I O headers on Prometheus Prometheus Connector _ Manufacturer Manufacturer Part No J1 Generic 1 dual row pin header 2x32 J2 Generic 1 dual row pin header 2x20 J3 3M Robinson Nugent P50 080S R1 TG J4 G LINKS PSPH1 1X6GOB11 05 2 3 Samtec ESQ 106 12 G S J5 G LINKS PSPH1 2X5GOB11 05 2 3 Samtec ESQ 105 12 G D J6 G LINKS PSPH1 2X3G0B11 05 2 3 Samtec ESQ 103 12 G D J11 G LINKS PSPH1 1X9GOB11 05 2 3 Samtec ESQ 109 12 G S J14 G LINKS PSPH1 2X25GOB11 05 2 3 Samtec ESQ 125 12 G D Website information G Links Taiwan www g links com tw Samtec www samtec com 3M www 3m com us electronics_mfg interconnects Note The 12 in the Samtec part numbers above indicates standard insertion force components This may be replaced by 37 for low insertion force components Because of the number and location of the mating he

Prometheus Manual v1.47 - Diamond Systems Corporation

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