Dear All,

I have a looping problem, it might be simple for your, and I don't know
why I tried the whole morning till now, still can make it works.

I plan to output bit7 of portB, on and off, and make use of and
variable,
counter to do the looping counting. But don't why, when it runs, I use
logic probe and can't get signal (high low high low .... ) My program
calls
the output sub-routine.

Please help me, and look at my partial code below, what's wrong?

------------

output
    movlw 0x10            ; loop 16 times
    movf counter
loop1
    bsf PORTB,7            ;set bit7 ON
    call wait_high
    bcf PORTB,7            ; set bit7 OFF
    call wait_low
    decfsz counter,1
    goto loop1
return

-------------

Please point out my mistake, and your help is very much appreciate.

Thanks.


--
Regards,

William Tan

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