news@daver.bungi.com (09/23/90)
Well, I got a bit more time to play with that board, and it had 'stuff' comming out of the serial port. I hooked it up to a terminal, but the terminal is wired funny, and I can't find any breakout boxes 8-(. I did put the board back on the logic analyser, and found that the 'problem' I had last time was that I was triggering on every rising edge of bclk, after reset did it's thing. Well, a 1K state memory can't see the end of that 800uS loop right at the start of the code... (Machines only do what you tell them, not what you want them to do... 8-). I checked the ICU and it got it's pulses in. (I only saw 6, but the scope made one of them a bit wider so it counts twice.) Finally, I put the 'scope on the TxD pin of port 0, and saw it wiggle. Nice looking signal, looked like about 9600 baud, but can't bet my life on it 8-). Also swap finally... well swapped, and the refresh pin of the ICU was 30uS! I am pretty sure that it was working last time I wrote, (with the exception that I have 8-bit memory, and the parity pal was in at the time), but it looks very good now. My next set of questions will probably be on connecting disks, and installing minix, etc. but you all get a break for now. -- Jon Buller jonb@vector.dallas.tx.us ..!texsun!vector!jonb FROM Fortune IMPORT Quote; FROM Lawyers IMPORT Disclaimer; (P.S. I really hope I didn't jump the gun on this, I would HATE to have to eat my words now...)