That sounds like they aren't being pulled low at all...maybe you could
verify that all the connections are correct?

Josh
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Stuart Meier wrote:
>
> Just come back to PICs after a very long break. Just updating an old project, on
> a 16F84. Very simple, just flashes LEDs etc.
>
> Now changed rb6 and rb7 to inputs to read a pair of simple switches, which are
> pulled low by 10K res, then switch pulls them high.
>
> I've set to inputs like this....
>
> move to bank 1
>     movlw    b'11000000'
>     movwf    TRISB
> return to bank0
> etc
>
> then read them as
>     btfsc    portb,6
> etc
>
> but when run PIC does not recognise state of RB6 and RB7 -a simple voltmeter
> check on them gives approx 1.55 volts when they are not pulled high by input
> switch.

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