User Manual
Contents
1. address is the starting address where the program execution begins The G command allows the user to initiate the program execution free run in real time The user may optionally specify a starting address where execution is to begin The program execution starts at the current program counter address location unless a starting address is specified The program execution continues until a breakpoint is encountered or the ESC key or the reset switch is depressed e Go F000 This command starts execution from the address F000 Init value1 value2 value3 value4 Description value1 is the new value for the INIT register value2 is the new value for the TMSK2 register value3 is the new value for the OPTION register value4 is the new value for the BPROT register The user will be prompted to enter all 4 values press the CR to skip the modification or the ESC key to cancel the modification The INIT register the BPROT register the bit 0 1 4 5 of the OPTION register and the bit 0 1 of the TMSK2 register can be modified only within first 64 E cycles after a system reset The Init command will automatically generate a reset signal on the 68HC11 in order to force the 68HC11 to take new values for these 4 control registers Caution Any other commands such as Enter Fill or Move will not reset the 68HC11 and will not have any effect on the INIT register the BPROT register the bit 0 1 of the TMSK2 register and2. address starts assemble at a new location FCB byte allocates a hex byte for each location FCC byte allocates an ASCII byte for each location BYTE byte as same as FCB DB byte as same as FCB ASCII byte as same as FCC The assembler s subcommands are available only when an assemble command is executed For the FCB or FCC subcommand a maximum of 32 bytes may be entered on a command line Example Assemble F000 This command starts assemble at the address location F000 Idaa 10 load Accumulator A with hex 10 not decimal 10 Idab 2 x load Accumulator B with the value of the address that is 2 plus the value of the X register staa 5 store the value of the Accumulator A in the direct RAM location 5 staa 1200 store the value of the Accumulator A in the extended RAM location 1200 bra f000 branch to the location f000 Breakpoint Syntax Breakpoint address Description The breakpoint is set at the location specified by the address The breakpoint can only be set at instruction addresses A maximum of eight breakpoints may be set All breakpoints are software breakpoints Comment During initial power up all breakpoints are automatically cleared Example Breakpoint F010 This command sets a breakpoint at the address F010 Compare Syntax Compare address1 address2 address3 Description address1 is the starting address of the q7 memory block address2 i
3. be better make symbols shorter Symbol file format Symbolic debugger reads symbol files which are generated by the Motorola cross assembler a public domain program the 2500AD Microtek Zax assemblers other popular assemblers and C compilers including the Wintek Introl Avocet Archimedes Whitesmiths and IAR C compilers When the Archimedes C compiler is used you should specify the symbol format by the Fmpds m in the xcl file If you have an assembler or C compiler whose symbol format is not supported by the Ep2711E9 board we will modify our software to add your symbol format COMMAND REFERENCE Command format The command line format is as follows Ep6811 gt gt Command Parameters Where Ep6811 gt gt is the Ep2711E9 prompt Command is the command mnemonic may be entered in an uppercase or a lowercase letter Only the first character of the command is needs to be typed Parameters are memory addresses or symbols ALL NUMBERS ARE HEXADECIMAL All hex numbers may be substituted by symbols starting with the backslash Y Comment The fields can be separated by a space or the CR but a command must be terminated by the CR only Errors may be corrected by backspacing or by the ESC key to abort the command The ESC character will abort the command any time Only a valid key will be accepted on the command line and any invalid keys will NOT be echoed to the CRT display Command reference The command reference is liste
4. C handshake lines are not used the handshaking is done by XON and XOFF The board will use 9 bytes on the stack during debugging You should allocate enough memory locations for the stack to cover these 9 bytes The resident MCU is running in expanded mode even it emulates single chip mode The port B and port C are used for address and data buses and they are not available as I O ports during debugging session in the expanded mode but they are replaced by the 68HC24 the port replacement unit STANDARD FEATURES User interface Memory window monitors user programmable memory locations Register window monitors all CPU registers Stack window monitors stack locations Breakpoint window monitors breakpoints Interactive command window with novice and expert modes for command entry On line help menu and function key selection Displays memory in hexadecimal ASCII Motorola S record Intel Hex or Tektronix Hex formats Echo debugging session to log file and or printer DOS shell facility Displays internal CPU registers and control bit assignment map using standard Motorola labels Math function for verifying program results Memory and register operation Memory manipulation Display memory block Examine and modify memory Compare memory block Search memory block for pattern Move memory block Fill memory block with pattern Register manipulation Examine and modify CPU registers Breakpoints Set or clear breakpoint address Ass
5. LIMITED WARRANTY EVBplus com provides the warranty on its EVBplus2 board against defects in materials and workmanship for a period of one year from the purchase date The product returned postpaid to EVBplus com during this period will at our option be either replaced or repaired and returned to the sender free of charge If the defective unit has been modified without EVBplus com s consent or it is the result of misuse abuse or misapplication EVBplus com has no obligation to repair or replace the defective unit If any charge to you is involved the replacement unit will be sent by C O D This warranty does not cover damage due to shipping accident unauthorized repair abuse or misuse EVBplus com does not assume any responsibility for the use of this product No EVBplus com products sold under this warranty may be used in life support applications or situations wherein malfunction or failure of the product or its software could cause bodily injury or property damage EVBplus com does not assume any liability arising out of the use or application of this product neither does it convey any license under its patent rights or the rights of others The PC driver software is provided as is without warranty of any kind either expressed or implied including warranties of merchantability and fitness for a particular purpose Should the software prove defective you and not EVBplus com assume the entire cost of all necessary servicing r
6. S orane E E Userinterface seses a cae Seca AA a a A dada Memory and register operation 0 ee teeter enn tetera reat ea eaeeeneeneeees Breakpoint stage cc cee aes deta la a IAS bates ets Assembler and disaSSemMbIe iii ir asad cobs Aa EXECULION Controlan a its Predefined Names ss violar cid isla iodo Symbols on the command entry erer arsaa EErEE AATE EA A ETET RETA Aa a Symbol BCEE A A a aaa aia bno EE bate COMMAND REFERENCE morira r a dh AEA EE AEE pari Command formate anan a ee Kind Ons a A A a a aa aa COMMANAC TETEFENGe zana Aaa FUNCTION KEY ASSIGNMENT vico ar dt desidia QUESTIONS 3 ANSWER S coin daa RRAR BROW OW oa ann oun INTRODUCTION The Ep2711E9 a low cost and high performance development board provides real time emulation for the Motorola 68HC1 1 microcontroller A and E families It offers all useful features of the Motorola EVB board with the Buffalo monitor and adds numerous enhancements at an extremely low cost It combines a complete 68HC11 development system an advanced trainer a reliable 711E9 programmer and a versatile SBC into one package For engineers it s a WICE in circuit emulator development system and Motorola EVB EVM EVS replacement a convenient prototype platform and a low cost single board computer For students it s a user friendly microcontroller trainer It is as powerful as a high priced real time in circuit emulator but it s affordable as a low cost single b
7. bit 0 1 4 5 of the OPTION register Before executing a user program the value of the above four registers must be set correctly If a user program modifies these registers in its initialization routine the user must use the command to modify these registers with the same values Kill breakpoint Syntax Kill breakpoint address Description The breakpoint is cleared at the location specified by the address If the address is not specified all breakpoints will be cleared Example Kill breakpoint F010 This command clears the breakpoint address location F010 Load Syntax Load filename offset Description The Load command will prompt the user to enter the type of the file to be downloaded This command can download the user file into the 512 byte on chip EEPROM B600 B7FF or the 8K on board EEPROM 4000 5FFF or the 30K on board RAM 8800 FFFF It also can download the symbol file or the system parameter file The parameter file includes the EEPROM programming enable disable flag the INIT TMSK2 OPTION and BPROT registers the breakpoint addresses the memory display addresses If the type of the file is a user file which is in the Motorola S record or the Intel hex or the Tektronix Hex format The user will be prompted with the following parameters filename is the filename to be download from the host PC offset is the offset to be added with the download addresses If the type of the file is
8. d has several subcommands that allow modification and verification of the memory contents Following are the subcommands that are recognized by this command lt Enter gt examine modify the next location lt gt examine modify the previous location lt ESC gt exit from the Enter mode Caution Any attempt to modify at address locations of the monitor will be ignored Example Enter F000 F000 00 display data at the address F000 F000 00 AA change data at F000 from 00 to AA F001 11 display data at the next address F001 Fill Syntax Fill address1 address2 pattern Description address 1 is the lower limit of the memory block It defaults to the address which equals the ending address from the previous DUMP command plus 1 address2 is the upper limit of the memory block It defaults to the address which equals the address1 plus 3F in hex pattern is the data pattern in hexadecimal values It defaults to 00 by entering the Carriage Return The Fill command allows the user to repeat a specific pattern up to 16 bytes throughout a determined memory range The data bytes must be separated by the space character The Carriage Return will end this command Caution Any attempt to fill memory locations of the monitor will be ignored Example Fill F000 FFFF 00 This command fills locations F000 through FFFF with 00 s Go Syntax Go address Description Exampl Init Syntax
9. d in alphabetical order Assemble Syntax Assemble address Description address is the starting address for the assembler operation Each source line is converted into the proper machine language code and is stored in memory overwriting previous data on a line by line basis at the time of entry Caution When a new source line is assembled the assembler overwrites what was previously in the memory If the assembler detects an error in the new source line it will output an error message then re open the same address location and the contents of the memory will remain unchanged Any attempt to assemble at locations of the monitor will be ignored Syntax rules 1 All numerical values are assumed to be hexadecimal therefore no base designators are allowed 2 Operands must be separated by the space character Addressing modes are designated as follows 1 Immediate addressing is designated by preceding the address with the sign 2 Indexed addressing is designated by the X The comma must be preceded by an offset byte e g LDAA 0 X 3 Direct and extended addressing are specified by the value of the address operand a value of less than 256 specifying direct addressing otherwise the extended addressing is implied 4 Relative offsets for branch instructions are computed by the assembler Therefore the valid operand for any branch instructions is the branching address not the relative offset Subcommands ASM
10. embler and disassembler Symbolic disassembler and single line symbolic assembler Automatically disassembles 16 lines of code during assembling Scrolls display back and forth by page or line during disassembling Execution Control Execute program Single step over all instructions including the RTI instruction Trace execution File management File transfer Download file from host to memory Upload memory to host file Automatically download files during startup Upload download of files in Motorola S record Intel Hex and Tektronix Hex formats File formats Motorola S record Intel Hex Tektronix Hex Symbol formats Motorola 2500AD Microtek Zax Wintek Introl Avocet Archimedes Whitesmiths IAR P amp E systems System Configure INIT TMSK2 OPTION BPROT registers EEPROM erasing and programming CONFIG register programming in test mode Scope or logic analyzer trigger output 40 pin logic analyzer connector SYMBOLIC DEBUGGER Predefined names All internal CPU registers can be referenced by their name such as porta PORTA portb PORTB ddrd DDRD etc Symbols on the command entry For a command in which an absolute number can be replaced by a symbol the symbol must start with a Y such as BEGIN loop The maximum number of characters in a symbol is 32 and symbol is CASE SENSITIVE Although symbols can be 32 character long but the disassembler can only display 10 characters maximum for a symbol In your source code it would
11. emory block If the destination memory block is not specified all data residing from the address to the address2 will be moved up one location Caution Any attempt to move data to the address locations of the monitor will be ignored Example Move F000 FO3F E000 This move command moves 64 bytes of data in the memory block between F000 and FO3F to the memory block between E000 and E03F Next step single step Syntax Next step Description The N command allows the user to monitor program execution on an instruction by instruction basis It will execute one instruction including the RTI instruction whose location is pointed to by the program counter After a single step the PC will display all CPU register values and the next instruction to be executed Program memory watch Syntax Program Description The P command allows the user to select 3 blocks of 2 contiguous memory locations and 3 blocks of 8 contiguous memory locations for memory watching purpose These locations will always be updated after using the Assemble Enter Fill Move Go or Next Step commands All six starting addresses can be substituted by symbols For example DATA is 0005 if the value of the symbol DATA is 0005 message is E100 if the value of the symbol message is E100 Register modify Syntax Register modify Description The R command allows the user to display and modify PC program counter CC condition code regis
12. epair or correction In no event will EVBplus com be liable to you for any damages including any lost profits lost savings or other incidental or consequential damages arising out of the use or inability to use such product even if EVBplus com has been advised of the possibility of such damages or for any claim by any other party Some states do not allow the limitation or exclusion of liability for incidental or consequential damages some states do not allow the exclusion of implied warranties so the above limitation or exclusion may not apply to you This warranty gives you specific legal rights and you may also have rights which vary from state to state You acknowledge that you have read this limited warranty understand it and agree to be bound by its terms and conditions You further agree that it is the complete and exclusive statement between us and supersedes any proposal or prior agreement oral or written and any other communications between us relating to the subject matter of this agreement Return policy Before returning a defective unit you must obtain a Return Merchandise Authorization number The RMA number must be prominently displayed on outside of the returned package otherwise the package will not be accepted EVBplus2 68HC11 Development Board User Manual Version 2 20 for Ep2711E9 Rev C board Table of Contents INTRODUCTION Sucio sr tel sao l SYSTEM DESCRIPTION sicstccdugeeseais did d STANDARD FEATURE
13. g the result in Hex Decimal Octal Binary valid ASCII character one s complement and valid negative number The arithmetic operations are addition subtraction multiplication and division The logical operations are AND amp OR Exclusive OR left shift lt and right shift gt The default notation is HEX and a decimal octal or binary number must be followed by the letter T O and Q The result in the first line is HEX Decimal Octal Binary and ASCII character if the value of the result is between 0x20 to Ox7F The result in the second line is one s complement negative number if the value of the result is between 0x80 to OxFF in 8 bit format 0x8000 to OxFFFF in 16 bit format and 0x80000000 to OxFFFFFFFF in 32 bit format This key allows the user to erase or program the 512 byte on chip EEPROM This key allows the user to display and edit the symbol table Use the Load command to read symbol files which are generated by the Motorola cross assembler a public domain 2500 AD Microtek Zax assemblers Wintek Introl Avocet Archimedes Whitesmiths IAR C compilers or Wytec format directly No conversion is needed This key allows the user to do 1 Terminate the emulation and exit from the debugger or 2 Re start the emulation without terminating It is often called warm boot and is useful to initialize the CRT screen For instance when the PC reads a file from a floppy disk drive for downloading int
14. he test mode by pressing and holding the PAO data switch down while resetting the board If the RESET LED does not flash then the 68HC11 chip is bad and you have to replace it If the RESET LED flashes the chip is good and most likely the COP function is enabled It will work after re programming the CONFIG register in the test mode to disable the COP function If you have a watchdog circuit with the reset signal you should disable it during debugging only test your watchdog function after your code is completely debugged The LED may not flash when the COP is enabled Finally check the EPROM U2 DIP socket for any loose contact The RESET LED flashes during power up or whenever the reset switch is depressed but why does the Ep2711E9 board not communicate with the host PC If the LED blinks and there is no response from the Ep2711E9 board check the RS 232C cable connection and if the COM port number is configured correctly Also make sure that you only open the debug window once If the first debugger is running you cannot invoke second debugger before closing the first one My program works with another SBC but why does it not work when use the Ep2711E9 The values of the INIT register shown on the top of the screen and the TMSK2 OPTION and BPROT registers must be set correctly by the Init command before running your program Because these registers can only be modified in normal modes within the first 64 E cycles any modification to t
15. hese registers in the beginning of your program will not change their values when your target program is executed by the GO command because the 64 E cycles period was already passed The Init command allows you to modify these registers to the correct values before running your target program because the command will automatically reset the 68HC11E1 so the modification can be done If you don t relocate the control register the value of the INIT register should be 01 Always watch this value on the top of the screen If this value is corrupted by running a bad program you have to re program it to 01 by the Init command or power cycle the board During the power up its value is always 01 My program works with the Ep2711E9 board but it does not work in another SBC why A The stack point in your program may not be set in the beginning of your program The Ep2711E9 sets the stack point during power up you should do the same thing in your program If your resident 68HC11 microcontroller on the Ep2711E9 board is a 68HC11E1 but the 68HC11 on your target is a 68HC11A1 you should be careful to use the PA3 of the PORTA it is an output line in the A1 controller but a bi directional line in the E1 controller You have to program the bit 3 of the PACTL register if you want the PA3 to be an output line It defaults as an input line during power up After executing the program by the GO command why can t the ESC key stop the Ep2711E9 board In m
16. hich the user file is saved Enter M for the Motorola S record for the Intel Hex format or T for the Tektronix Hex format If the type of the file is the symbol file or the parameter file the user would be prompted to enter the file name only Command summary Command Syntax Function Assemble A Single line assembler Breakpoint B Set breakpoint Compare C Compare memory block Dump D Display memory block Enter Fill Go Init Kill Load Move Next step Program Register modify Search Trace Unassemble Write uU Z Z s cCc How D Examine and modify memory Fill memory with user pattern Execute program Configure INIT TMSK2 OPTION amp BPROT registers Clear breakpoint Download file from host Move memory block Single step Program memory watch Examine and modify CPU registers Search memory range for user pattern Trace execution Disassemble Upload memory block to host file F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 FUNCTION KEY ASSIGNMENT A brief on line help Emulation memory map Not used Dump memory contents in the Motorola S record or the Intel Hex format or the Tektronix Hex format This key allows the user to echo CRT output to a printer and or a log file on the disk This key displays all 68HC11 control registers and control bit assignments This function evaluates a numerical operand or performs arithmetic and logical operations on a simple expression givin
17. ion basis During the trace the PC will display all register values and the next instruction to be executed after each step Unassemble Syntax Unassemble address Description Write Syntax address is the starting address for disassemble operation If no address is specified the starting address is the one that followed the last instruction unassembled by the previous U command The U command will disassemble 16 lines of instructions All valid op codes are converted to the assembly language mnemonics and all invalid op codes are replaced by the FCB s The PgUp PgDn Home keys can be used to scroll display back and forth Write filename address1 address2 M I T Description The Write command will prompt the user to enter the type of the file to be saved This command can upload the user file or the symbol file or the system parameter file The parameter file includes the EEPROM programming enable disable flag the INIT TMSK2 OPTION and BPROT registers the breakpoint addresses and the memory display addresses If the type of the file is the user file which is in the Motorola S record or the Intel hex or the Tektronix Hex format the user will be prompted with the following parameters filename is the filename to be saved in the host PC address1 is the starting address of the memory block to be saved address2 is the ending address of the memory block to be saved M I T is the file format in w
18. o the Ep2711E9 board the PC will print out an error message that will garble the monitor screen if the door of the drive is left open This key will restore the screen It also can be used to automatically download files ALT F1 This key combination toggles between the novice and the expert modes In the novice mode the user will be prompted to enter each parameter on the command line QUESTIONS amp ANSWERS This chapter contains the most commonly asked questions about the Ep2711E9 board They are divided into three sections 1 Hardware 2 Miscellaneous questions Hardware PO PO Q Visually check all solder joints and also if there is any solder bridge We fully tested every board before shipping it out but still cannot guarantee that we wouldn t make a mistake When turn on the Ep2711E9 board how come the LED does not flash After the initial power up the RESET LED should blink 4 times in Wytec monitor mode but twice in BUFFALO monitor mode otherwise check the VCC It should have a reading of about 5V DC If the 5V DC is not present check if the polarity of DC output of the AC adapter is correct The center is positive on the DC plug The board is running in expanded mode even it s emulating the 711E9 OTP part You must also remove the MODEA and MODEB jumpers for the expanded mode if they were installed for programming the 711E9 OTP chip in bootstrap mode If the problem still exists try starting it up in t
19. oard computer Ep2711E9 includes user friendly IDE software which runs under Windows 95 98 2000 and XP It offers fast file transfer single stepping breakpoints data watch for memory and registers symbolic debugging compatibility with most assemblers and compilers and user program termination with the lt Esc gt key Our exclusive phantom monitor technology preserves all interrupt vectors including RESET and All on chip RAM 00 1FF EEPROM and 30K external emulation RAM 8800 FFFF available for user applications there is no pre empted chip memory The hardware includes a prototype area 16 extra I O lines form ports F and G one logic probe on board 16X2 LCD display with backlight 4x4 keypad connector 8 sensor I O port SPI port speaker 4 digit LED display potentiometer 8 LED status indicators for port B one 8 position DIP switch connected to port C and three pushbutton switches dual UART RS485 interface IR transceiver with on board 38 KHz OSC on board 12 programming voltage supply and 60 pin EVB EVBU compatible connector SYSTEM DESCRIPTIONS The basic operation of the Ep2711E9 is divided into two modes the MONITOR mode and the RUN mode In the MONITOR mode the user can exercise all commands as described later in this manual and all user interrupts are temporarily suspended in this mode In the RUN mode it will run a user program in full speed and all interrupts are enabled for the user program As the RS 232
20. ost cases the ESC key can stop the user program if this is not the case there could be many reasons for this problem Since you cannot use the ESC key to stop the 68HC11 the only thing you can do is to reset the Ep2711E9 board by depressing and releasing the reset button The reset button of the Ep2711E9 board should be pressed whenever the Ep2711E9 board does not seem to work properly such as a system crash after running a bad program Once it is pressed it will reset the program counter to the reset vector fetched from locations FFFE and FFFF the stack pointer to 00FF and update the INIT register gt o Check if the jumper on the PRG RUN header is on the RUN position If the jumper is set at the PRG position then you cannot stop program and also the single step function will not work Carefully check the user program to determine if there is any attempt to write data into the memory locations at 6800 x87FF These locations are used by monitor firmware Any memory write to these locations must be avoided in the user program want to modify the CONFIG register how do I enter the test mode The CONFIG register can only be modified in the test mode In order to enter the test mode press and hold the PAO switch then press and release the RESET button and it will start the test mode By checking the status line on the top of the screen you can tell if you are in the test mode The Ep2711E9 board cannot emulate the user program in the te
21. s the ending address of the anes memory block address3 is the starting address of the a memory block The Compare command allows the user to compare a memory block with another If the address3 is not specified the block of memory residing from address1 to address2 will be compared with the block memory residing from address1 1 to address2 1 Example Compare F000 FO3F E000 This command compares 64 bytes of the memory block1 from F000 to FO3F with the memory block2 from E000 to E03F Dump Syntax Dump address1 address2 Description address1 is the starting display address It defaults to the address which equals the ending address from the previous memory dump plus 1 address2 is the ending display address It defaults to the address which equals the address1 plus 3F in hex The Dump command allows the user to display a block of memory beginning at the address1 and continuing to the address2 If the address2 is not entered before the Carriage Return is entered 64 bytes of memory are displayed beginning at the address1 Example Dump F000 FOFF This command displays a block of memory beginning at F000 and continuing to FOFF Enter Syntax Enter address Description address is the memory location at which to start examining and or modifying The Enter command allows the user to examine and or modify contents in memory at specified locations in an interactive manner Once entered the enter comman
22. st mode and the test mode is only used for modifying some registers such as the CONFIG register that cannot be modified in both single chip mode and expanded mode The status line on the top of the screen indicates the operating mode The EXP stands for the expanded mode and the TST stands for the test mode The status line also displays the value of the INIT register which indicates the locations of the on chip direct RAM and the 64 control registers In the test mode press the F8 key and follow the instructions to modify the CONFIG register gt o Can modify the CONFIG register in my program after a system reset The CONFIG register can only be modified in the test mode This is a safety feature of the 68HC11 Your program cannot modify it unless your target hardware is set for the test mode gt o Miscellaneous questions Q What is the parameter file and how do I create this file A The parameter file includes the EEPROM programming enable disable flag the INIT TMSK2 OPTION and BPROT registers the breakpoint addresses the memory display addresses These parameters can be saved for a particular user program they should be loaded before running the user program so the program will be executed in a consistent manner You do not have to make this file by yourself You can use the W command to save all parameters into a parameter file Q Why does the disassembler display wrong symbols for some instructions especially the in
23. structions with 8 bit values A Many cross assemblers do not have any attribute bytes for their symbols When too many symbols have the same value the disassembler cannot display the correct symbol for that value The disassembler will display first two labels it found Occasionally when too many symbols have the same value the disassembler may display a wrong symbol for the value
24. ter B Accumulator B A Accumulator A X Index register X Y Index register Y SP stack pointer After modifying the value of a register press the CR to complete modification and press the ESC key to exit from the command Caution The stack pointer should be modified with a great care It should only be modified when nothing was pushed onto the stack otherwise the return address and flag register that were pushed onto the old stack must be manually moved to the new stack area to prevent a crash Search Syntax Search address1 address2 hex data pattern Description address1 is the starting address of the memory block to be searched address2 is the ending address of the memory block to be searched It defaults at the address which equals the address1 plus 3F in hex pattern is the data pattern to be searched for The Search command allows the user to search for a specific pattern up to 16 bytes throughout a specified memory range The data bytes must be separated by space characters The Carriage Return will end this command Example Search F000 FFFF 01 02 03 04 05 06 07 08 This command will search for the pattern of 8 hex numbers which are 01 02 03 04 05 06 07 08 in the memory block between F000 and FFFF Trace Syntax Trace number of steps Description The Trace command allows the user to trace program execution for a specified number of steps on an instruction by instruct
25. the symbol file or the parameter file the user would be prompted to enter file name The Load command downloads user files in the Motorola S record or Intel hex or Tektronix hex format from the PC into the Ep2711E9 board Before downloading a user file the user will be prompted to input an offset value which will be added to the download addresses of the user file to generate the absolute addresses for the Ep2711E9 board If the offset is not needed just press the Carriage Return By using this offset feature a file can be downloaded into different memory blocks Caution Always download the symbol file first so the symbols in a parameter file will have their values Any attempt to download data from a file into the address of the monitor will be ignored Example Load test s19 8000 This load command downloads the file named test s19 from the host PC into the Ep2711E9 board It will add 8000 with all memory addresses of the file For instance the data at the address 1000 of the file will be downloaded into the location 9000 instead of 1000 because every download address is added with 8000 Move Syntax Move address1 address2 address3 Description address1 is the starting address of the source memory block address2 is the ending address of the source memory block address3 is the starting address of the destination memory block The Move command moves the contents of the source memory block to the destination m
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