Date   : Sun, 29 Dec 1985 22:38:00 EST
From   : mjs <@purdue.ARPA (Mike Spitzer):mjs@purdue-ecn-ee.ARPA>
Subject: Help needed with 8251 USART

Does anyone out there have any experiece programming the 8251 USART?  I
am using a Royal Alphatronic PC with CP/M 2.2, and want to be able to
set and change the baud rate.  I have the data sheets for the 8251, and 
through much experimentation, I am able to change the baudrate to suit
my needs.  Unfortunatly, as soon as I try to send data out the port,
the chip locks up.  Data coming in works fine.  Anyone know anything
about this?  I can send you the code that I am using if you think
that you can help me out...

                               Thanks...
                                Mike Spitzer
                                mjs@purdue-ecn
                                [decvax,ucbvax,ihnp4,inuxc]!pur-ee!mjs