Hi, Im using a PIC16F87 and almost everything is working fine except when i send serial data i get a reply. Ive checked the code and the only way that could happen is if portb.6 changes state. It has a pull up 100K resistor so it should be 1 unless i ground it. The other weird thing is that whenever this same pin is grounded the chip wont receive serial data. Ive checked the code over and over and im 99.99% sure that its not a code problem. Ive looked in the datasheet and the pin im having problems with has some extra features. I think it might have something to do with those but even after readign the datasheet i cant figure it out.
Ive got 3 other pins that work in the same way as this one (porta.3, portb.0 and portb.7). They all work as expected and only portb.6 has this problem
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