First Program in assembly, And Programmer Inchworm.

[Ayne]

I am using Inchworm to program My targeted Microcontroller, my targeted microcontroller is also PIC16F877A.

I write this program in Assembly

;**********Declaration & Microcontroller configuration**************
		Processor	16F877A
		#include	"P16F877A.INC"

		__config	0x3F3A

;*******************Declaration of Variable*************************
		cblock		0x20
		CounterA
		CounterB
		CounterC
		endc

;******************Program memory structure*************************
		org		0x0000
		goto	main

;************************Main Program********************************
main
		movlw	b'00000000'
		movwf	TRISC

Program
		movlw	b'00000000'
		movwf	PORTC
		call	Delay

		movlw	b'11111111'
		movwf	PORTC
		call	Delay

		goto 	Program		;Endless loop

Delay
;PIC Time Delay = 0.3130012 s with Osc = 20.000000 MHz
	movlw	D'8'
	movwf	CounterC
	movlw	D'248'
	movwf	CounterB
	movlw	D'106'
	movwf	CounterA
loop	decfsz	CounterA,1
	goto	loop
	decfsz	CounterB,1
	goto	loop
	decfsz	CounterC,1
	goto	loop
	return

	END

Then i build

Clean: Deleting intermediary and output files.
Clean: Deleted file "LED.err".
Clean: Deleted file "E:\Projects\LedTest\LED.cod".
Clean: Deleted file "E:\Projects\LedTest\LED.hex".
Clean: Deleted file "LED.lst".
Clean: Done.
Executing: "C:\Program Files\Microchip\MPASM Suite\MPAsmWin.exe" /q /p16F877A "LED.asm" /l"LED.lst" /e"LED.err"
Message[302] E:\PROJECTS\LEDTEST\LED.ASM 21 : Register in operand not in bank 0.  Ensure that bank bits are correct.
Loaded E:\Projects\LedTest\LED.COD.
BUILD SUCCEEDED: Wed Mar 07 22:58:48 2007

Feed program in PIC using inchworm. the result is

MPLAB ICD 2 Ready
Erasing Target Device...
...Erase Succeeded
MPLAB ICD 2 Ready
Blank Checking...
...Program Memory
.. Config Memory
...EEPROM
...User ID Memory
...Blank Check Passed
MPLAB ICD 2 Ready
Programming Target...
...Validating configuration fields
...Erasing Part
...Programming Program Memory (0x0 - 0xB7)
Verifying...
...Program Memory
...Verify Succeeded
Programming Configuration Bits
.. Config Memory
Verifying configuration memory...
...Verify Succeeded
...Programming succeeded
07-Mar-2007, 22:51:58

MPLAB ICD 2 Ready

But LEDs are not blinking on PORTC....
Where is the mistake???

 

[williB]

wish mine was working
did you release it from reset?
what does your target circuit look like?

 

[eng1]

I would check the configuration word.

 

[williB]

To run a PIC
you need to power the chip
apply 5V to mclr to keep it out of reset
it must oscillate (with a clock chip or a crystal)
and the LED circuit must be hooked up correctly.
if all this is correct , maybe it is blinking too fast to see

 

[Ayne]

I am using Firefly Z.........ZIF only to program PIC16F877A.

 

[3v0]

What williB said.

Then use the Inchworm as an debugger(not programmer) to program, then try to step through you code.

If you do not know what I am talking about check out the Microchip
doc on MPLAB and debugging Esp chapter 5 on ICD.

http://ww1.microchip.com/downloads/en/devicedoc/51331B.pdf

 

[Ayne]

spouse i have a hex file compiled from another compiler(Mikrobasic) & want to feed this hex file into my targeted controller(PIC16F877A)..... how can i do this using inchworm???????????????????

 

[Ayne]

Thanks to the Lord Allah........
Problem solved...

There is a little mistake in program, i didn't select proper Banks for Registers.
Below is the correct program,

;**********Declaration & Microcontroller configuration**************
		Processor	16F877A
		#include	"P16F877A.INC"

		__config	0x3F3A

;*******************Declaration of Variable*************************
		cblock		0x20
		CounterA
		CounterB
		CounterC
		endc

;******************Program memory structure*************************
		org		0x0000
		goto	main

;************************Main Program********************************
main
		banksel	TRISD
		movlw	b'00000000'
		movwf	TRISD

Program
		banksel PORTD
		movlw	b'10101010'
		movwf	PORTD
		call	Delay

		movlw	b'01010101'
		movwf	PORTD
		call	Delay

		goto 	Program		;Endless loop

Delay
;PIC Time Delay = 0.3130012 s with Osc = 20.000000 MHz
	movlw	D'8'
	movwf	CounterC
	movlw	D'248'
	movwf	CounterB
	movlw	D'106'
	movwf	CounterA
loop	decfsz	CounterA,1
	goto	loop
	decfsz	CounterB,1
	goto	loop
	decfsz	CounterC,1
	goto	loop
	return

	END

 

[blueroomelectronics]

spouse i have a hex file compiled from another compiler(Mikrobasic) & want to feed this hex file into my targeted controller(PIC16F877A)..... how can i do this using inchworm???????????????????

Easy, from MPLAB
File / Import "filename.hex"

That's it, PICBASIC Pro can be integrated into MPLAB

 

[Ayne]

I have a HEX file named LEDS.HEX in my computer want to feed this file into PIC16F877A using inchworm.

1. I open MPLAB
2. I press File>Import, then i select my desired HEX file
3. OUTPUT windows is showing in Build tab

Loaded C:\Documents and Settings\Administrator\My Documents\LEDS.hex.

4. The problem is how can i see the loaded hex file into MPLAB???

 

[williB]

Ayne ,
if you just want to see it 'in memory '
click on the View tab , then click 'program memory'