PIC LAB-1 TEST ROUTINE

This TEST ROUTINE is supplied in the chip when you buy a kit. It is removed when any other program is "burnt" into the chip. You may need to use it (or some of the sub-routines), at a later date. That's why it has been presented here. It is included in All PicLab-1.hex
Click on "All PicLab-1.hex" and a window will open with all the .hex files. Locate Notepad.exe in the window and click on it. Notepad will open. Click on the file you want to open and slide it across to the Notepad window. The .hex values will appear!

To use the TEST ROUTINE, build the PIC LAB-1 and go over the construction, making sure all the components have been fitted and all connections are soldered perfectly.
Fit the 4 cells to the battery holder.
Fit the pre-programmed PIC16F84 chip to an 18 pin IC socket, supplied in the kit as a spare IC socket (to make the chip easier to fit and remove from the Multi Chip Programmer) and the project is ready for testing.
There is one slight problem with the Test Routine. Some constructors find it difficult to get past the AUdiO loop of the program and into the POt loop.
The best thing to do is fit the microphone and pot to the board before turning the project on.
You are now ready to perform the Test Routine:
Turn the project ON and the row of 8 LEDs will scan across and back. The individual segments of the 7-segment display will also turn ON. Push button "A."
The letters "Pb" will show on the 7-segment display - for "Push button."
Push button "A" again and the top 4 LEDs will blink, followed by the lower 4 LEDs. Push button "A" again. The letters "AUdiO" will show on the display. Push button "A" again.
The microphone will already be fitted to the 2-pin plug marked "MIC." Talk or whistle into the microphone. The lowest LED will turn ON to indicate audio. While whistling into the microphone, push button "A" again. It is important to whistle while pushing button "A" to get the micro to enter the next loop.
The letters POt will flash on the 7-segment display. Push button "A" again.
The pot will already be fitted into the 2-pin plug labelled "Pot." Rotate it in both directions. The 7-segment display will indicate rotation.
All the input and output devices are now tested.
Push button "A" to repeat the sequence.

TEST ROUTINE PROGRAM
Many of the sub-routines in the Test Routine will be very handy when you are designing your own program.
At the moment they are too complex to understand. The Experiments in this course start with very simple routines and carry out a single function.
After testing the project, go to the start of the experiments: Expt 1.asm
The TEST ROUTINE is an example of linear programming. This is very simple programming where the microcontroller advances down the program into self-contained sections. You don't have the problem of jumping up and down the program looking for faulty instructions. When writing the program, each section is written and tested before going to the next section. This will make the program longer, but much easier to diagnose.

;Test1.asm ;Project: TEST ROUTINE List P = 16F84 #include <p16F84.inc> __CONFIG 1Fh ;_CP_OFF & _PWRTE_ON & _WDT_ON & _RC_OSC
SetUp Delay Sect1a Sect1b Sect1c Sect1d Sect1e Delay2 Sect2a Sect2b Sect3a Sect3b Table1 Sect4a Sect4b Sect4c Delay5 Sect5a Sect5b Table2 Sect6a Sect6b Table7 Delay7 Delay7A Delay8 Delay8B Look Look2 Look3 Sect7a Sect8	ORG 0 BSF 03,5 CLRF 06 MOVLW 1F MOVWF 05 BCF 03,5 BCF 03,0 CLRF 1F GOTO Sect1a NOP DECFSZ 1A,1 GOTO Delay BTFSC 05,0 GOTO Sect2a DECFSZ 1B,1 GOTO Delay RETURN MOVLW 01 MOVWF 06 RLF 06,1 RLF 06,1 BTFSC 03,0 GOTO Sect1d CALL Delay GOTO Sect1c RRF 06,1 RRF 06,1 BTFSC 03,0 GOTO Sect1b CALL Delay GOTO Sect1e NOP DECFSZ 1A,1 GOTO Delay2 DECFSZ 1B,1 GOTO Delay2 RETURN MOVLW 02 MOVWF 1Eh MOVLW 73h MOVWF 06 CALL Delay2 CALL Delay2 CLRF 06 CALL Delay2 MOVLW 7Ch MOVWF 06 CALL Delay2 CALL Delay2 CLRF 06 CALL Delay2 DECFSZ 1E,1 GOTO Sect2b GOTO Sect3a CLRF 06 BTFSS 05,0 GOTO Sect3a MOVLW 02 MOVWF 1Eh MOVLW 0Fh MOVWF 06 CALL Delay2 CALL Delay2 MOVLW 0F0h MOVWF 06 CALL Delay2 CALL Delay2 DECFSZ 1E,1 GOTO Sect3b GOTO Sect4a ADDWF 02h,1 RETLW 77h RETLW 3Eh RETLW 5Eh RETLW 06h RETLW 3Fh CLRF 06 BTFSS 05,0 GOTO Sect4a CLRF 1Dh MOVF 1D,0 CALL Table1 MOVWF 06 CALL Delay2 CALL Delay2 CLRF 06 CALL Delay2 INCF 1D,1 MOVLW 05 XORWF 1Dh,0 BTFSS 03,2 GOTO Sect4c GOTO Sect5a NOP DECFSZ 1A,1 GOTO Delay5 RETURN BTFSS 05,1 GOTO Sect5b BTFSC 1F,0 GOTO Sect5a BSF 06,0 CALL Delay5 BCF 06,0 BSF 1F,0 GOTO Sect5a BCF 1F,0 CLRF 06 BTFSS 05,0 GOTO Sect5a GOTO Sect6a ADDWF 02h,1 RETLW 73h RETLW 3Fh RETLW 78h CLRF 1Dh MOVF 1D,0 CALL Table2 MOVWF 06 CALL Delay2 CALL Delay2 CLRF 06 CALL Delay2 INCF 1D,1 MOVLW 03 XORWF 1Dh,0 BTFSS 03,2 GOTO Sect6b GOTO Sect7a ADDWF 02h,1 RETLW 3Fh RETLW 06h RETLW 5Bh RETLW 4Fh RETLW 66h RETLW 6Dh RETLW 7Dh RETLW 07h RETLW 7Fh RETLW 6Fh RETLW 40h MOVLW 80h MOVWF 1B DECFSZ 1A,1 GOTO Delay7A DECFSZ 1B,1 GOTO Delay7A RETURN MOVLW 20h MOVWF 1A DECFSZ 1A,1 GOTO Delay8B RETURN CLRF 0C BSF 06,7 CALL Delay8 BTFSS 05,4 GOTO Look3 INCF 0C,1 GOTO Look2 MOVF 0C,0 CALL Table7 MOVWF 06 CALL Delay7 BCF 06,7 CALL Delay7 RETURN CALL Look BTFSC 05,0 GOTO Sect8 GOTO Sect7a CALL Delay2 BTFSC 05,0 GOTO Sect8 CALL Delay2 GOTO Sect1a END	;This is the start of memory for the program. ;Go to Bank 1 ;Make all port B output ;Load W with 0001 1111 ;All Port A input ;Go to Bank 0 - the program memory area. ;Clear the carry flag ;Clear the flag file ;Create 250mS delay ;Look at input ;Go to next section ;Return ;Put 0000 0001 into W ;Illuminate the lowest LED ;Shift to the left so that end LED shows equal time ;Shift LED to the left. ;Has LED reached end of display? ;Yes ;No. Illuminate LED ;Loop shift-left instructions. ;Shift to the right so that end LED shows equal time ;Shift LED to the right. ;Has LED reached end of display? ;Yes. ;No. Illuminate LED ;Loop shift-right instructions. ;Create 250mS delay ;Return ;2 loops of "Pb" ;The 2-loop file ;Output "P" ;Output "b" ;Blank display ;Decrement the 2-loop file ;Go to next section ;Button pressed? ;2 loops of "4-LEDs flashing" ;The 2-loop file ;Decrement the 2-loop file ;Go to next section ;Add W to the Program Counter to create a jump. ;A format= gfedcba ;U If any table value has a leading letter, it must be ;d preceded with a "0." E.g: 0A3h, 0FFh, 0CCh ;I ;O ;Button pressed? ;Copy file 1D to W ;Output a letter ;Check zero bit in Status ;Go to next section ;Create 1mS delay ;Test the input line on port A ;LOW detected ;HIGH detected. First pass of routine? ;HIGH already detected ;Turn on LED ;Turn off LED ;Set the detection flag ;Clear the detection flag ;Button pressed? ;Add W to the Program Counter to create a jump. ;P format= gfedcba ;O If any table value has a leading letter, it must be ;t preceded with a "0." E.g: 0A3h, 0FFh, 0CCh ;Copy file 1D to W ;Output a letter ;Check zero bit in Status ;Go to next section ;Add W to the Program Counter to create a jump. ;0 format= gfedcba ;1 If any table value has a leading letter, it must be ;2 preceded with a "0." E.g: 0A3h, 0FFh, 0CCh ;3 ;4 ;5 ;6 ;7 ;8 ;9 ;"-" overflow ;Create 100mS delay ;Create "Look" delay ;Count-down file ;Take cap HIGH ;Is input LOW? ;Put file 0C into W ;Output to 7-Segment display ;Take cap low ;100mS delay ;Button pressed? ;Button released? ;Repeat tests ;Tells assembler end of program