AT/PS2 Keybord - PIC Interface?

[mytekcontrols]

Kamikaze47:

At the moment im going to be transmitting the decoded ascii characters over an RF link to another pic which will write them to an LCD screen. I've got the RF part working, so now just need to get the keyboard interface working.

Sounds like a very interesting project. Is this something you are doing for fun, or do you see it having commercial possiblities? If so, I hope it does well for you.

Well I put together all the pieces into one file and tested it out stand-alone. And then I pushed the compile button, while remembering that famous Clint Eastwood line "do you feel lucky?". Well I think you can guess the answer to that one. Of course there were a few errors , but nothing too terrible.

Here is what was missing:

<img src="http://www.picbasic.co.uk/forum/images/icons/icon2.gif" align="absmiddle"> from the equates:

init var bit            ' flag to use timeout test alternate return path 
ktable var word         ' translation table index

<img src="http://www.picbasic.co.uk/forum/images/icons/icon2.gif" align="absmiddle"> and from the PIC18F aliases:

INT2IP  VAR INTCON3.7   ' INT2 external interrupt priority bit

(I screwed up on this one, and accidentally cut & pasted the wroung item)

Anyway once I fixed it, everything compiled and ran just fine. Total bytes required = 2626 (wow! pretty interesting result).

Download the complete and tested file below.