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by Steve
Mon Jan 03, 2011 9:42 am
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Re: C4PICs V3 & multiprogrammer board (T0IF problem)

Pin A4 on a 16F877a is an "open drain" output and therefore needs an external pull-up for this pin to drive a load. But neither piece of code in your previous email seems to reference this pin - 0x04 is pin 2 and 0x08 is pin 3. You are correct that there is no ANSEL register in the 16F877a...