gnupic: PIC interrupt driven usart driver
Subject:
Re: PIC interrupt driven usart driver
From:
Michael Shiloh ####@####.####
Date:
30 Oct 1999 18:53:07 -0000
Message-Id: <199910301846.LAA04339@ktura.wrs.com>
Hi Scott,
Nice to hear from you.
>Michael,
>
>I took a brief look at your code and did not see anything wrong (which is
>not to say there is isn't). The only reason I'm responding to your
>question is to tell you that I've been working on the USART peripheral in
>gpsim. Right now I've got the USART working in asynchronous mode with out
>interrupts for the 18cxxx family. Fortunately, the USART module for the
>18cxxx family is nearly identical to the USART of the 14-bit core devices.
>So the good news is that it wouldn't be too hard to include it in the
>14-bit core, the bad news is that I wasn't planning to do it before
>releasing version 17. BTW, the next release of gpsim will be with in two
>weeks and will have the major feature that you privately requested: a cli
>only mode. (There are also many other features which I'll outline when the
>release is made).
Very cool! Now I have to figure out why gpsim is crashing on my machine....
>Hint:
>Try loop-back cables for debugging your rs-232. i.e. tie tx to rx and make
>sure that the pc and the pic can (independently) receive and transmit.
Tried that on my dumb terminal (not a PC) and that end is fine. I will
try it on the PIC (send char, receive char, compare, flash one LED if
match, flash another LED if no match). Thanks for the suggestions.
Michael
