Last few evenings I have had a few minutes to start programming my 16F627A PIC. So far I have been sucessful in reading and writting IO pins and using the external interrupt. Although my PIC does not support the debugger, I have not had any problems I could not debug by inspection or by twiddling an external IO pin.
Although I purchased the 16F627A for its comparator, I think the chip will be fast enough to do my task just using reading from on IO pin and writting to another. The latency seems to be in the handful of microseconds something I can tolerate. But I will explore the comparator just to gain that knowledge.
Next stop is programming Timer0 to act as a timeout mechanism. Should be done by the end of the weekend unless I get called into work.