I have been trying to implement HSERIN & HSEROUT on the 40-pin 16F747. I still use PicBasic Pro 2.6.

I have gotten successful I/O tests when using DEBUGIN & DEBUGOUT on PortA.1 and PortA.2.

This leads me to believe that there may be some obscure setting that I am omitting which the code operating behind the DEBUG commands gets right.

I have combed the docs for the 16F747 and can't think of anything I left out. It has quite a few functions multiplexed on it's 40 pins though.

I have included my rather short test code as a ".txt" file for anyone who might be interested in critiquing my workSerTest16F747.txt.