Opening Software from START Menu

1. Click the START button in the Windows desktop. Bottom Left Corner.

2. Under PROGRAMS, click Franklin Software.

3. Click PROVIEW 32 to open.

Opening a New ASM File

1. In the taskbar at the top left of the screen, click FILE and then NEW.

2. Choose ASSEMBLER FILES for your file choice type. (Don’t forget to save and name new file… FILE, SAVE AS “NAME”)

3. You can write (or copy and paste) your code in the opening window and save using the top task bar.

4. See Sample Code for example program. Sample code toggles P1 of 8051 using 55H & AAH

“Sample Code”

ORG 0

BACK: MOV A, #55H ;load A with 55h

MOV P1,A ;send 55H to port 1

LCALL DELAY ;time delay subroutine

MOV A , #0AAH ;load A with AA (hex)

MOV P1,A ;send AAH to port 1

LCALL DELAY

SJMP BACK ;keep toggling P1

;-----------------------------------------

ORG 300H ;put time delay at address 300h

DELAY:

MOV R5, #9 ;R5=9 , the counter

HERE1: MOV R4,#242

HERE2: MOV R3,#255

HERE3: DJNZ R3, HERE3 ;stay here until R3 becomes 0

DJNZ R4, HERE2

DJNZ R5, HERE1

RET

END

Assembling The Program

In order to load the program to the microcontroller, you need to assemble the code and produce a HEX file. Then, you will burn the HEX file to the ROM. When running the assembler for the first time, you may need to set it to produce HEX files. This is shown in next three steps.

1. First, click OPTIONS and under options click PROJECT. (be sure not to get the two project labels confused)

2. To set the assembler to produce a hex file double click L51, then Linker. This will then open the settings and enable you to choose “INTEL HEX” under Misc:.

3. Click O.K. to keep settings.

4. After settings are correct, click PROJECT and MAKE or “F9” to assemble and produce your HEX file. (note: your hex file will be placed in the same directory your project and file exist in)

1. Also notice that if any “ERRORS” exist in your code the assembler will note the errors in another dialog box at the bottom of your work area.

After setting the assembler to produce the HEX files for the first time, you will not need to repeat steps 1-3 when you run the assembler again.

Debugging and Tracing an assembled program

1. After assembling and producing all the files, you can use the “Virtual Debugger” to simulate your program.

2. To perform this, click DEBUG and then START. Select Virtual Machine (Simulator) and the processor (8051) under Microcontroller. Note: be sure that your cursor is sitting at the top of the code because when you debug a program sometimes it will start from the point the cursor sits.

3. A box will appear showing all the registers and ports.

4. Now to trace the code, use the STEP INTO command from the DEBUG menu or its shortcut F7 key. This will single step through the program while allowing you to examine and change the registers.

5. You can view the contents of the registers and the memory by opening the corresponding window from the VIEW menu.

6. Using “breakpoints” will provide great help during the debugging. Instead of going step by step, to run the program up to a specific line of the code, click on that line and choose TOGGLE BREAKPOINT from the DEBUG menu or use the shortcut F5. Then, again from the DEBUG menu, choose RUN or use the shortcut CTRL+F9. The program will run up to the specified line and stop. (Long delay procedures may take a long time to simulate, so you may need to shorten them before debugging your program.)

Loading Hex File to the Trainer

1. You are now ready to “burn” your hex file into memory of the 8051.

2. The hex file as stated before will be contained in the directory you placed your work in.

3. Refer to the document “How to Test and Program the 8051 Trainer Board” to continue.

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