SPI 16F877A

[PCM programmer]

Try a very simple test program like the code below.
If your crystal or oscillator is running at a different frequency
than 4 MHz, then change the #use delay() statement.
Also, if your crystal is at a higher frequency than 4 MHz,
change the fuse from "XT" to "HS".

Then look at pins 18 and 24 (on the 40-pin DIP package)
and you should see SCLK and SDO pulses. It worked for
me with the PicDem2-Plus board, and PCM compiler vs. 3.236.