while wend problem

[Russ Kincaid]

This is a segment of my program. The PICBASIC compiler does not like my WHILE statement. What is wrong with it?
REM PORT B ARE OUTPUT, INTERCEPT ON PORTA.1
CMCON = %00001101
VRCON = %11101100 'VREF ENABLED, OUTPUT ON FA2, V = 2.5V
REM VREF ON RA2 WHICH IS ALSO INPUT TO COMPARATOR+
REM COMPARITOR NEG INPUT ON RA1 IS INTERUPT INPUT, NORMALLY HIGH
TRISA = %00000010 'PORTA.1 IS STOP INPUT, ALL OTHERS OUTPUT
TRISB = %00000000 'ALL OUTPUTS

ON INTERRUPT GOTO STOPSUB
STOPSUB:
WHILE PORTA.1 = 0 PAUSE 1 'WHY DOES THIS NOT WORK?
WEND
RESUME
ENABLE

Russ

[paul borgmeier]

you have this

WHILE PORTA.1 = 0 PAUSE 1 'WHY DOES THIS NOT WORK?
WEND

how about this?

WHILE PORTA.1 = 0
PAUSE 1 ' moved to its own line
WEND

[paul borgmeier]

and you do not appear to have a "DISABLE" before your INT routine, but you do have an "ENABLE" after it.

[sougata]

WHILE PORTA.1 = 0 PAUSE 1 'WHY DOES THIS NOT WORK?
WEND

Hi,

You can also use a : to use multiple statements on the same line.
Thus your code should be

WHILE PORTA.1 = 0 :PAUSE 1 'THIS WORKs !!!
WEND

[Russ Kincaid]

Thanks. I am so used to GWBASIC that I expected PICBASIC to be the same.

I don't know why I need an ENABLE or DISABLE, can't I just eliminate both?

Russ

[rhino]

Darrel has made working with interrupts so much easier with his Instant Interrupts. You might try this method.