about pic compiler

[Navid]

hello i use pbpdemo compiler but when i compile my program too hex and write it to chip program doesnt work properly i use epic for write hex file my basic program and my hex file are here, is it true compile for this basic program? i think my compiler doesent work properly.( i writ program for 16F84 or 16F84A )

'
'FIRST BASIC PROGRAM TO WINK TWO LED'S CONNECTED TO PORT B
LOOP:HIGH 0 'TURN ON LED CONNECTED TO PIN RB0
PAUSE 500 'DELAY FOR .5 SECONDS
LOW 0 'TURN OFF LED CONNECTED TO PIN RBO
PAUSE 500 'DELAY FOR .5 SECOND
GOTO LOOP 'GO BACK TO LOOP AND BLINK & WINK LED'S FOREVER
END

:1000000028288F018E00FF308E07031C8F07031CEA
:10001000232803308D00DF300F2003288D01E83EB8
:100020008C008D09FC30031C18288C070318152838
:100030008C0764008D0F15280C181E288C1C222894
:1000400000002228080083130313831264000800B1
:10005000061483160610831201308F00F43002203C
:10006000061083160610831201308F00F430022030
:0600700028286300392876
:02400E00FD3F74
:00000001FF

thank you

 

[bonxer]

I've never used PIC Basic, so I could be wrong. But just taking a look at the code, I'm seeing things missing that I would think would need to be present in any language for the pic. There is no where that you tell it to set up any Port B pins as output. All pins are defaulted to input until explicitly told to be output. Secondly, when you issue the command HIGH 0 and LOW 0, are those supposed to have pin numbers specified? Like should it be HIGH RB0, LOW RB0? just saying HIGH 0 and LOW 0 seems ambiguous, as Port A and Port B both have pin 0's. It goesn't look like you are specifying anything at all for ports.

 

[Beefer3]

Navid
I haven't tried this but it did compile OK. Try the following code.

DEVICE = 16F84A		'tell the compiler what device you are using
XTAL = 4		'tell the compiler what crystal you are using

OUTPUT PORTB		'set portb to output

LOW PORTB.0		'set portb bit 0 low
LOW PORTB.1		'set portb bit 1 low


BLINK:
	HIGH PORTB.0	'set portb bit 0 high turning on led
	DELAYMS 500	'delay for 1/2 sec	
	LOW PORTB.0	'set portb bit 0 high turning off led
	HIGH PORTB.1	'set portb bit 1 high turning on led
	DELAYMS 500	'delay for 1/2 sec
	LOW PORTB.1	'set portb bit 1 high turning off led
	DELAYMS 500	'delay for 1/2 sec
	GOTO BLINK	'go back and loop forever

END

Hope this helps

 

[kenmac]

Navid,
Your Picbasic code is OK.
high 0 sets portB.0 high, etc.
Note: This method only applies to portB pins.
PortA must be set by defining and using the portA/trisA registers.
You haven't set the two pins used as outputs.
To set b0 & b1 as outputs simply add "dirs = %00000011" before the start of the action. ( 0 = input, 1 = output)
PortB pins could also be set up using the same method as portA - i.e. using portB/trisB registers - but it's simpler to use "dirs =% ........ " .

Your code only sets b0 - there is no mention of b1, except in your circuit.

Try this:

dirs = %00000011 ' set b0,b1 as outputs
loop:
high 0 ' turn on LED1
pause 500 ' delay 500ms
low 0 ' turn off LED1
high 1 ' turn on LED2
pause 500 ' delay 500ms
low 1 ' turn off LED2
goto loop ' do it all over again forever
end

hope that helps,
kenmac