DOS Stamp™ User`s Manual by Ivan Baggett Rev. 1.0
Contents
1. 256K flash organized as 128K BIOS and DOS 128K flash disk Optional DiskOnChip 2000 auxiliary flash disk up to 144 MB Real time clock with timed power up Power monitor with power on reset and watchdog timer Simple Bus Interface SBI expansion bus Power requirement 5V only 200 mA typical at 40 MHz 2 asynchronous serial communication ports 2 RS 232 or 1 RS 232 1 RS 485 16 digital I O lines each programmable as input or output with opto rack interface Optional 8 channel 12 bit ADC 1 uncommitted timer counter 6 layer FR 4 PCB Why BIOS and DOS The purpose of having BIOS and DOS in an embedded computer is to facilitate the development of application software The task of software development is eased by the use of low cost familiar software tools such as Borland C C Microsoft C Visual C QuickBasic or PowerBasic These compilers and many others produce an executable EXE output program In order to run an EXE a file system and some type of file storage medium 7 Chapter 1 Introduction are required The file system is provided by DOS ROM and the storage medium is provided by BIOS flash disk support Why does an EXE require BIOS and DOS An EXE is a relocatable program The final output program from the compiler is not fixed to run at a particular address in memory When the program is loaded it is the job of DOS to choose where in memory to load the program Then DOS must fix up the code as it is2. done correctly It is important to get this test working since you will not be able to develop your application software unless the DOS Stamp and your PC cooperate Serial ports are frequently troublesome If your PC has a non standard serial port you are in for some detective work 15 This page intentionally left blank 16 Chapter 3 Hardware Reference 17 This page intentionally left blank 18 Chapter 3 Hardware Reference Overview This chapter contains information on how to use the DOS Stamp features It is assumed that you are familiar with 8086 architecture and possess a working knowledge of electronics CPU The DOS Stamp uses the AM188ES CPU which is instruction set compatible with the 80186 which is a superset of the 8086 The AM188ES has a memory address range of 1 MB The I O address range is 64 KB The on chip peripherals include two asynchronous serial channels programmble I O power save unit interrupt controller timer counter chip select unit and DMA controller Memory Map DOS Stamp memory map 00000h 7FFFFh SRAM 80000h BFFFFh Auxiliary flash disk socket C0000h FFFFFh Boot flash BIOS DOS and flash disk A DiskOnChip 2000 flash disk may be inserted into the auxiliary flash disk socket for additional storage needs The flash disk BIOS and DOS are all contained in a single flash chip This saves space and cost but has the limitation that reads from the flash are not per
3. loaded to run at the address DOS has chosen Once the program is loaded it may make use of hardware such as input from a keyboard output to a screen reading and writing to disk drives etc To do this the program will interact with DOS and or BIOS The BIOS provides the program with a software interface to the low level hardware isolating your program from variations in hardware design For example to set the time of the real time clock you would call BIOS interrupt 1Ah function 03h Using this BIOS function your program would function identically on a DOS Stamp as on a PC Another reason BIOS and DOS are needed is that your compiler s library has many functions which make calls to BIOS and DOS such as console I O file operations date time functions etc What languages can J use with the DOS Stamp You can use any programming language which meets all the following criteria e Isa compiled language that produces a stand alone EXE that runs under DOS e Produces 16 bit code for 8086 or 80186 e Has I O read I O write and call interrupt functions e Is able to link in external object modules written in other languages All DOS based C C compilers Turbo Pascal and compiled QuickBasic qualify The low level I O driver source for the DOS Stamp is in C ASM therefore native access to the hardware is feasible only in C or ASM However by linking of object files other languages may call these drivers for an efficient sof
4. Transmit output function depends on JP3 jumper selection TXO COM1 RS 232 Transmit output CTSO RX1 COM1 RS 232 Clear To Send input COM2 RS 232 Receive input function depends on JP3 jumper selection 29 7 10 11 12 13 14 15 17 20 21 22 23 24 25 26 27 28 Nn lt 30 32 33 34 43 Appendix C Connections AI5 ADC Input 5 AI4 ADC Input 4 AB ADC Input 3 AD ADC Input 2 AI ADC Input 1 AIO ADC Input 0 Table C 2 JP2 Header Pin Functions 44 Appendix C Connections JP3 Header JP3 is a jumper selection header Jumpers are used to configure the DOS Stamp in various ways An installed jumper is indicated by a blue box outline enclosing the pins which are to be jumpered together Unrelated jumpers are grayed out U1 Auxiliary Memory Device Selection Install jumper from 1 2 for DiskOnChip 2000 Remove jumper from 3 4 U1 Auxiliary Memory Device Selection Install jumper from 3 4 for flash chip Remove jumper from 1 2 45 Appendix C Connections Boot Mode To make the Setup Menu appear when booting install jumper from 7 8 To bypass the Setup Menu when booting remove jumper from 7 8 Boot Device Selection Normal install jumpers from 9 10 and 11 12 Boot Device Selection U1 install jumpers from 9 11 and 10 12 This configuration is normally used only at the factory for using U1 as the boot device Use of this mode also requires jump
5. command SET 87 NO in the AUTOEXEC BAT file before your application is started This will tell Borland C and the PowerBasic 32 Chapter 4 Software Development startup code in explicit terms that there is no 8087 present In the case of Microsoft C link in the alternate floating point support library 33 This page intentionally left blank 34 Appendix B Interrupt Map 35 This page intentionally left blank 36 Appendix B Interrupt Map Interrupt Map Consult the AM188ES User s Manual regarding the use of any interrupts not listed here This listing is only for hardware interrupts used in the DOS Stamp 08 00020 Timer 0 used by BIOS for 18 2 Hz timer 09 00024 Reserved for AMDuse 0002C DMA interrupt INT6 _ _ OD 00034 INT I available on SBI bus 00040 INT4 available at GPIOO COM2 also used by BIOS Equipment Check function Timer 1 also used by BIOS Memory Size function Timer 2 not usable for timer used by BIOS Disk Services function COMI also used by BIOS Serial Services function Table B 1 Interrupt Map 37 This page intentionally left blank 38 Appendix C Connections 39 This page intentionally left blank 40 Appendix C Connections The following header pin tables are referenced to the top side of the PCB Dual row header pins are odd numbered 1 3 5 7 in the row with the square pad pin 1 and even numbered 2 4 6
6. 4HC138 operation RS 232 voltages are generated on board Alternatively an MORE CHIP SELECTS FOR OUTPUTS US RS 485 transceiver 75176 type may AO 1 Mes Al 2 5 p4 be used with half duplex operation A 3 le z ME y3 D I2 ChipSelects Jumper JP3 selectable 100 ohm AC VCC 6 Gl y4c 11 GA Ys 7 termination is provided for RS 485 Sa vy PE network connection COM2 is at I O SN74HC138 address FF10h and uses interrupt vector llh Due to the non standard I O Figure 3 2 address interrupt vector and register set languages with built in serial port support i e QuickBasic will not work in the standard manner Such programs should call assembly language functions for serial port usage General Purpose I O there are 16 general purpose I O GPIO pins on the JP1 connector Each GPIO can be programmed as an input with pull up down an input without pull up an output an open drain output or a peripheral function The value of the pull up down resistor is about 10K The default configuration of a GPIO is an input with pull up except for GPIOS and GPIO7 which are inputs with pull down Refer to the AM188ES User s Manual for 23 Chapter 3 Hardware Reference details on how to use the Programmable I O The GPIOs are mapped to the AM188ES PIO pins and the JP1 connector as shown in Table 3 2 GPIO PIO JP1Pin Alternate Function o ao Jar CEE 3 20 9 RTO S E 6 Jo 3a TMRIND E Bo a a NE a e 9 lle f
7. 8 in the other row e n e ra K ei a FA 41 Appendix C Connections JP1 Header JP1 is designed for easy connection to I O module mounting boards opto racks When the DOS Stamp powers up each pin defaults to the Primary Function as an input with pull up or pull down as noted Pull ups and pull downs are approximately 10K It is up to your application software to reprogram the function of each pin as appropriate JP1 Pin Primary Function Alternate Function PIO28 General Purpose I O 14 COM2 Receive Data RX TTL level PIO27 General Purpose I O 13 COM2 Transmit Data TX TTL level PIO18 General Purpose I O 11 ADC End of Conversion Do not drive with external signal when ADC option is installed 11 Request Input PIO12 General Purpose I O 1 DMA Channel 0 Request Input or INTS Interrupt Request Input PIO30 General Purpose I O 0 INT4 Interrupt Request Input Table C 1 JP1 Header Pin Functions 42 Appendix C Connections JP2 Header JP2 is a multipurpose header which has signals for the ADC serial ports timed powerup and SBI bus JP2 Pin ON ele O oo PCS 1 Peripheral Chip Select 1 output active low PWRUP Powerup output active low open drain TXRX1 COM2 RS 485 Transmit Receive input output TXRX1 COM2 RS 485 Transmit Receive input output RXO COM1 RS 232 Receive input RTSO TX1 COMI RS 232 Request To Send output COM2 RS 232
8. DOS Stamp User s Manual by Ivan Baggett Rev 1 0 05 25 99 Rev 1 1 06 30 99 Rev 1 2 08 30 99 Rev 1 3 09 17 99 Rev 1 4 11 26 99 Rev 1 5 02 16 01 Copyright 1999 2001 Bagotronix Inc All rights reserved This page intentionally left blank The material presented in this document is the intellectual property of Bagotronix Inc except for material furnished by others where indicated No part of this publication may be reproduced or distributed in any form or by any means or stored in a data base or retrieval system without the prior written permission of Bagotronix Inc DOS Stamp is a trademark of Bagotronix Inc DiskOnChip 2000 is a registered trademark of M Systems Inc Bagotronix Inc 2900 1 Crescent Drive Tallahassee FL 32301 850 942 7905 This page intentionally left blank Chapter 1 Introduction This page intentionally left blank Chapter 1 Introduction What is the DOS Stamp The DOS Stamp is a DOS based miniaturized single board computer for embedded control applications Measuring just 2 600 x 2 000 x 0 625 inches and consuming only about 1 W of power the DOS Stamp incorporates I O storage processing communications and a DOS operating system Your application software may be programmed in familiar DOS based software tools such as Borland C C Microsoft C Visual C compiled Quickbasic PowerBasic MASM TASM etc DOS Stamp features AMIS88ES CPU at 40 MHz 512K SRAM
9. c Software based techniques include oversampling averaging Figure 3 3 digital filtering etc One effective way to eliminate 60 Hz power line noise from ADC conversions is to sample many times over a 60 Hz period 16 67 ms and average all the samples together This has the effect of integrating the AC noise over the entire cycle to zero Real Time Clock RTC a Dallas 1689 keeps date and time in the absence of VCC power The RTC may be accessed through the BIOS or directly as I O reads and writes The RTC is capable of powering up the DOS Stamp and other equipment connected to the PWRUP pin JP2 pin 22 This feature can be used to let the system turn itself on at a previously programmed time and date do some processing set the time and date for the next power up and then turn itself off No standby power is required To use this feature a manual pushbutton and a relay or transistor is required Connect these items as shown in Fig 3 3 The 25 Chapter 3 Hardware Reference manual pushbutton forces the RTC to power up when the pushbutton is pressed The PWRUP output of the DOS Stamp goes low in response to the RTC alarm time match or by pressing the KICKSTART pushbutton When this happens the P MOSFET transistor is turned on allowing power to flow from the source to the load In the case of a battery operated embedded application the power source is a battery and the load is a voltage regulator which supplies regulated vo
10. e JP1 connector may be used as hardware DMA reguest signals when programmed for their alternate function DMA transfers are also possible when reguested through software See the AMI1SSES Users Manual for further information on how to use DMA On Board Peripherals A summary of the DOS Stamp on board peripherals follows For connector pinouts see Appendix A RS 232 Port the primary asynchronous serial port COMI has RS 232 transceivers MAX232 for transmit data TX receive data RX request to send RTS and clear to send CTS To use RTS and CTS functions JP3 jumpers Baud rates range from 50 to 1250K with full or half duplex Chapter 3 Hardware Reference operation RS 232 voltages are generated on board COM1 is at I O address FF80h and uses interrupt vector 14h Due to the non standard I O address interrupt vector and register set languages with built in serial port support i e QuickBasic will not work in the standard manner Such programs should call assembly language functions for serial port usage RS 232 485 Port the secondary MORE CHIP SELECTS FOR INPUTS U4 asynchronous serial port COM2 may A0 1 15 Ain a a Pia n be configured for either RS 232 or RS A2 3 i EL D y3 D I2 Chip Selects 485 RS 232 transceivers support TX VCC 6 Gl va 11 RD 4 J GA Y5 10 and RX only Baud rates range from 50 GB Y6D YI pb to 1250K with full or half duplex SN7
11. er 3 4 to be installed and 1 2 to be removed 46 Appendix C Connections Serial Port Configuration To configure COM2 as RS 232 TX and RX only install jumpers from 13 14 and 17 18 Remove jumper from 15 16 COM1 RTS and CTS not available OR To use GPIO13 remove jumper from 13 14 To use GPIO14 remove jumper from 17 18 Serial Port Configuration To configure COM RS 232 with RTS and CTS install jumpers from 13 15 and 16 18 COM2 RS 232 TX and RX not available but COM2 may be used as RS 485 by installing a RS 485 transceiver chip 75176 type in the U7 socket OR To use GPIO3 remove jumper from 13 15 To use GPIO15 remove jumper from 16 18 RS 485 Bus Termination To configure the COM2 RS 485 port with 100 ohm bus termination install jumper from 19 20 47 Appendix C Connections Volatile SRAM Configuration If there is no need to retain data in SRAM when powered down install jumpers from 21 23 and 24 26 This is the default configuration as shipped from the factory Non volatile SRAM Configuration If there is a need to retain data in SRAM when powered down install jumpers from 21 22 and 25 26 Remove jumper from 23 24 The SRAM will be powered from the on board lithium battery when the DOS Stamp is unpowered This will shorten the life of the lithium battery due to the standby retention current of the SRAM Table C 3 JP3 Configuration Jumpers 48
12. generate more chip selects This can be done by attaching a 74HC138 decoder to the address lines A2 A0 as shown in Figure 3 2 Circuitry connected to the SBI bus may also generate interrupts on INTO and INT1 Interrupts can operate in two different modes edge sensitive and level sensitive In edge sensitive mode interrupt requests are made on the rising edge low to high transition of the request pulse In 21 Chapter 3 Hardware Reference the level sensitive mode interrupt requests may occur as long as the interrupt request line remains high Two or more devices may share the same interrupt in level sensitive mode The AM188ES interrupt controller must be programmed for the desired mode and the interrupt input unmasked before interrupts can actually occur on that input For information on programming the AM188ES interrupt controller refer to the AM188ES User s Manual The SBI bus does not support DMA requests from hardware since there are no DMA request OUTPUTS Ul RESET 1 Jr vec ADO 2 abi II DI ti FI D2 D7 Z DRAINIDRAINS ee 2 DRAINDRAIN7 Das 2 DRAINDRAING a DRAINDRAINS D3 D6 AD3 9 GND 10 T GND CLK TPIC6273 7 3D 5Q 4D 6Q Inputs L 5 WQ 6D 8Q 17 g 7D us 8D SN74HC373 INPUTS Figure 3 1 must be configured properly ell 12 15 16 19 lines on the SBI bus However the GPIO1 and GPIO2 lines on th
13. is PCSO S O Table 3 2 GPIO Mapping The GPIOs can source or sink small currents i e 10 mA such as for driving LEDs directly Be sure to use a series resistor to limit the LED current For larger output currents use a solid state relay or Darlington transistor with a resistor to limit the input current or base current respectively ADC if installed a MAX197 ADC allows interfacing of up to eight channels of analog circuitry sensors measuring devices etc with 12 bit resolution The sample hold is built into the ADC The reference voltage VREF is built into the ADC and is available to your interface circuitry on JP2 pin 32 Do not load VREF by more than 0 5 mA or ADC accuracy may suffer Also do not change VREF loading during a conversion Itis best to buffer VREF with an op amp if you need the reference voltage for your application circuitry Unused ADC channels should be connected to ground The range of each ADC channel may be 24 Chapter 3 Hardware Reference programmed individually for 0 to 5 0 to 10 5 to SWI1 MEEN KICKSTART n O GND 5 and 10 to 10 V See n EE the MAX197 data sheet Ql for more details MOSFET P TO LOAD 2 l TO POWER SOURCE RI There are many hardware 100K and software based SBE techniques to eliminate noise in ADC conversions Ki EE SE Hardware technigues TO LOAD TO POWER SOURCE include the use of shielded PWRUP wire to carry signals RC filtering active filtering et
14. ls are prefixed by When PCSO and PCS1 are used as chip selects they can not be used as general purpose I O The PCSO and PCS1 signals must be enabled for the chip select function before any circuitry connected to them is accessed To do this for PCSO clear bit O of register PIO1 MODE then clear bit O of register PIO1 DIR To do this for PCS1 clear bit 1 of register PIO1 MODE then clear bit 1 of register PIO1 DIR 20 Chapter 3 Hardware Reference Oo 4 RD Read activelow o PWR Write activelow o Pp 8 AO Address bit 0 output o Po ADA Address Data bit 4 state o y EN EE ET OO Res Reset output aetivelow active low BE a poeme Purpose T O 9 Purpose I O 10 Ground 0 V System power 5 V Table 3 1 SBI Bus Signals As a minimum interfacing to the SBI bus requires transfer of data To transfer data data lines AD7 AD0 a chip select line PCSO or PCS1 and RD for input or WR for output signals must be used Figure 3 1 shows how to connect more output lines to the SBI bus using a TPIC6273 8 bit register with active low N MOSFET outputs This circuit is good for driving relays solenoids incandescent bulbs small stepper motors etc If you want regular logic level outputs substitute a 74HC273 instead Figure 3 1 also shows how to connect more input lines to the SBI bus using a 74HC373 8 bit transparent latch with output enable If more than two I O devices are desired it is necessary to
15. ltage to the DOS Stamp and associated circuitry The relay circuit works the same way as the P MOSFET circuit except a relay is used instead of a MOSFET DO NOT OMIT THE DIODE It is needed to protect the PWRUP output from the back EMF produced by the relay coil when it is de energized Watchdog Timer Reset the AM188ES has a built in watchdog timer The BIOS disables the watchdog timer during boot This is necessary because your application may take more time to load and start running than the timeout period of the watchdog timer Unfortunately the watchdog timer cannot be re enabled after being disabled Refer to the AM188ES User s Manual for more information If your application must have a watchdog timer you may use an off board watchdog timer chip connected to the EXTRESET input and toggled by a PIO pin configured as output Power Monitor the 5 V supply is monitored to make sure it is at least 4 75 V If not the CPU will be held in reset This prevents improper program execution from occuring due to marginal supply voltage Auxiliary Flash Disk Socket The auxiliary flash disk socket can take either a flash chip or a DiskOnChip depending on the jumper configuration of JP3 pins 1 2 3 and 4 see Appendix C The pinout of the auxiliary flash disk socket is shown in Table 3 3 The socket is mapped into memory address space from 80000h BFFFFh To access a 512K byte flash chip a bank select signal is present on A18 pi
16. mitted while a write to the flash is in progress For this reason interrupts are disabled during writes A flash write takes about 5 ms to complete Reading from files does not disable interrupts If your application requires interrupts to be serviced during file writes you must write to either a RAM disk or to another flash disk installed in the auxiliary flash disk socket The flash disk occupies 128K of the flash chip The BIOS has an integral flash driver which handles flash erasure and wear leveling transparently Some of the flash disk is consumed by the File Allocation Table FAT and a spare block area This results in a usable area of 105 984 bytes Your program may use some or all of this space 19 Chapter 3 Hardware Reference The BIOS and DOS ROM occupy the top 128K of flash space Since they are in flash memory the BIOS and DOS ROM can be updated to customize add new features fix bugs etc This requires a special utility program VO Map DOS Stamp VO map 0800h O8FFh PCSO SBI bus 0900h OOFFh PCS1 SBI bus OBOOh OBFFh PCS3 ODOOh ODFFh Real Time Clock OEOOh OEFFh ADC FFOOh FFFFh AM188ES Peripheral Control Block See the AMI88ES User s Manual for more details on the AM188ES Peripheral Control Block Simple Bus Interface SBI If your application needs more than the built in I O on the DOS Stamp you need to use the SBI bus The SBI bus signals are listed in Table 3 1 Active low signa
17. mp distribution disk Embedded DOS ROM and Utilities included e DOS Stamp distribution disk software libraries examples and source included DOS Mini command Interpreter The resident part of DOS which handles commands such as dir copy and others is typically contained in the file COMMAND COM in a disk based PC On the DOS Stamp COMMAND COM is built into the flash BIOS and does not appear in a directory listing of files This is called the mini command interpreter and it provides a subset of the features of a typical COMMAND COM The limitations of the mini command interpreter are as follows 1 Does not handle wildcards You cannot use the command copy b because of the wildcard ok You must type each filename to be copied individually 2 Does not infer destination filenames You cannot use the command copy somefile txt b because the destination filename is inferred You must type copy somefile txt b somefile txt 31 Chapter 4 Software Development If you cannot live with the limitations of the mini command interpreter you can use the TRANSFER program to transfer the full version of the command interpreter COMMAND COM over to the DOS Stamp Once the transfer is complete type COMMAND at the DOS prompt The full COMMAND COM will then load into RAM and allow you full usage of wildcards and inferred filenames Transferring Files to from a PC The TRANSFER p
18. n 1 This signal is controlled by PIO25 of the AM188ES CPU After reset PIO25 defaults to an input with pull up therefore the upper 256K of the flash chip will be selected 26 Chapter 3 Hardware Reference To access the lower 256K of the flash chip PIO25 must be configured as an output by software and then driven low A18 bank select to PIO25 A16 o o y O 16 3 A5 o E 12 1 1 2 3 gt a 7 U 10 11 12 14 15 16 GND 17 DS y 18 19 Re y 20 25 VCC A A A7 A6 AS A4 A3 A2 A AO D D D Table 3 3 Auxiliary Flash Disk Socket Pinout 27 This page intentionally left blank 28 Chapter 4 Software Development 29 This page intentionally left blank 30 Chapter 4 Software Development Overview This chapter contains information on how to develop application software for the DOS Stamp It is assumed that you have already connected your PC to the DOS Stamp and that the serial link is working properly Application programs are written and compiled on the PC The resulting EXE is transferred to the DOS Stamp via serial port download Either the TRANSFER EXE program or the Manufacturing Link can be used for serial transfers Debugging can be accomplished by placing print statements throughout the program to display the state of variables The software you need e Your compiler C Basic etc e A terminal emulator program XLTERM or other e DOS Sta
19. rogram is used to transfer files to and from a PC using the XMODEM file transfer protocol Be advised that XMODEM rounds file sizes up to the nearest 128 bytes so when you view a directory listing of transferred files the file sizes may be slightly larger than the original files XMODEM also pads the end of the file with extra non printing characters to round out the file size These padding characters can cause problems with some software For example batch files AUTOEXEC BAT etc edited on a PC and transferred to the DOS Stamp will have padding characters after the last line These characters can cause problems with the DOS mini command interpreter It is best to create batch files on the DOS Stamp directly by typing copy con batchfil bat at the DOS prompt Then type in the lines of text you need When finished hit lt CTRL gt Z to close the file Floating Point Math If you intend to use floating point math in your embedded application software you may need to take special steps depending on your compiler The DOS Stamp does not have an 8087 math coprocessor so instructions that are specific to the 8087 must be emulated Most compilers have built in support for 8087 emulation Some compilers have automatic detection of the 8087 during program startup In the case of Borland C compilers and the PowerBasic compiler the 8087 detection tests do not work on the DOS Stamp and will cause it to hang To overcome this problem place the
20. s chapter tells you how to set up the DOS Stamp for development activities You are probably eager to get started on your project but please take time to read this chapter first What you Need To develop your embedded application software you need at least the following items D 2 3 4 5 6 7 DOS Stamp DOS Stamp software library on floppy disk DB9F to DB9F null modem serial adapter crossover cable JP1 cable for DOS Stamp 5V DC power supply Your DOS based compiler PC with an available serial port Items 1 5 are included with the DOS Stamp Starter Kit How to Connect It All D 2 3 4 5 6 Place the DOS Stamp on the table Verify that standoffs are installed on the bottom side of the DOS Stamp to prevent direct contact of the circuit board with the table surface Connect the JP2 cable to the JP2 header as shown in Figure 2 1 The polarizing key should point toward the middle of the PCB Connect the JP2 cable DB9M connector to one end of the serial crossover cable as shown in Figure 2 1 Plug the 5 V power supply into an AC outlet Connect the other end of the serial crossover cable to the DB9M serial port connector on the back of your PC Connect the power supply plug to the JP2 cable power jack The DOS Stamp is now powered up Go to the section Checking it Out 13 Chapter 2 Setup Fig 2 1 DOS Stamp Development Setup Checking it Out It is a
21. ssumed that the compiler you will use for software development is already installed on your PC If this is not so install it now 1 To check the serial link between your PC and the DOS Stamp start a terminal emulator program XLTERM is a terminal emulator program which is designed for easy use with the DOS Stamp If you would rather use a different terminal emulator such as Procomm HyperTerminal etc on your PC set it to 9600 baud 8 data bits no parity 1 stop bit When the DOS Stamp powers up the sign on message should appear on the terminal window as follows General Software 80186 Embedded BIOS tm Version 4 0 Copyright C 1992 1997 General Software Inc DOS Stamp 00512 KB OK FLASH DISK 000DE000 C 1997 General Software Inc 80186 4 0 4040 0000 14 Chapter 2 Setup If this does not work recheck your power and serial cable connections and try again If this still does not work call Bagotronix technical support 2 Insert the example programs floppy disk in your PC create a directory DOSSTAMP SRC on your PC s hard disk and copy the files into them 3 Try interacting with the DOS by typing some commands such as DIR TIME DATE etc B gt DI R RAMDISK SYS 6224 4 May 99 3 01p TRANSFER EXE 15948 4 May 99 3 01p CONFIG SYS 35 4 May 99 3 02p AUTOEXEC BAT 11 26 May 99 12 57p 4 File s 87552 bytes free B gt If your attempt to get started was unsuccessful go back and examine each step to see if it was
22. tware interface to the hardware Chapter 1 Introduction How do I get Technical Support To help you get the most out of the DOS Stamp Bagotronix offers application assistance at no charge Contact information voice 850 942 7905 fax 850 942 7905 e mail techsupport bagotronix com Internet www bagotronix com If you require design assistance for other aspects of your embedded application Bagotronix consulting design services are available for a nominal fee Organization The organization of the DOS Stamp User s Manual is logically divided into several chapters Procedures for writing compiling and debugging embedded application software are covered in Chapter 4 Software Development Interfacing to the SBI bus ADC serial and I O ports is discussed in Chapter 3 Hardware Reference Technical information about the DOS Stamp is in the Appendix section Throughout this manual it is assumed that you have some experience in C or Basic programming 8086 assembly language and PC usage The development process involves these steps 1 Design or acquire your application s I O hardware sensors switches relays solenoids etc 2 Connect the DOS Stamp to your application s I O hardware and the PC serial port Write compile download and debug your application This page intentionally left blank 10 Chapter 2 Setup 11 This page intentionally left blank 12 Chapter 2 Setup Overview Thi
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