Hi. I've been working on this all day, and I have no idea what I'm doing
wrong.

I want to capture falling edges on a PIC16F877 using CCP2 on pin PORTC:1. In
an effort to narrow down why it wasn't working, I came up with this code:

Loop
    movfw   PORTC
    movwf   PORTD
    goto    Loop

This code works, if the PIC is minimally configured. PORTD is a bunch of
LEDs, PORTC is configured as b'11000010' (three inputs, the rest outputs,
7:0).

If, however, I attempt to write a value to CCP2CON before executing this
code, PORTC:1 is never read properly (always reads as 0). I've tried setting
CCP2CON to b'00000100', capture every falling edge.

If anyone has any insight, I'd really appreciate it. BTW, I've checked and
re-checked things like proper bank, and so forth. I also tried multiple
PICs.

TIA,

--
Rick

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