I have just started using the PIC12F629.

Everything I have done so far works fine except GP0 (pin 7)

I have wired it up with a pull up resistor but it always reads 0 in software no matter what.

It is not a wiring problem (voltage is normally at 5 and goes to 0 when button is pressed) and GP0 has been set as an input.

Are there any other issues associated with this pin on the 12F629 ?



I have looked through the datasheet but found nothing so far.


Many thanks for your help.

John

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Are you correctly setting the ANSEL and CMCON registers?, see example 3-1 on page 21 of the datasheet.

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I am now thanks to you Nigel. ops:


Its working

__________________
The first rule of mstechca club is do not talk about mstechca club.
http://www.electro-tech-online.com/s...induser&u=1245