elmquist@SSESCO.com (Chris Elmquist) (01/09/91)
A long, long time ago... in a land far, far away... there existed these little CPUs.. made by National I believe. I built a little board based on one of them... and it worked fine. However, I was always frusterated that I couldn't figure out how to write code that could poll the serial port to see if a character was waiting. Far as I could tell... you could only do INPUT statements that would suspend execution until input terminated by <CR> was entered. Does anyone know how to do single character input with this CPU? Is there a way to PEEK some register to see if a character is waiting? I've got a little project that could use the limited intelligence of this CPU... if I could figure out the single character I/O. Any tips would be appreciated. Thanks! Chris