-----Original Message-----
From: Dale Stemen <DWSTEMEN@LOGAN.NET>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: Sunday, January 10, 1999 12:30 PM
Subject: PC to 16C74A Serial Hookup


>My son and I want to hook a 16C74A to a PC through the serial port. We
>are looking for a hookup diagram, C code for the PC and assembly code
>for the 16C74A.  Can anyone kindly tell us where to look?
>
Hi Dale,
    I have been working with a 16C73 which is very similar. I use the
program HyperTerminal which is included in Win95-98. The settings I use are
through whatever com port is free with no handshaking. I have to disconnect
from the internet when I do this though. Hyperterminal does'nt cooperate
with my modem.    The hardware is a single chip interface: A Maxim MAX232.
This chip takes a 5 volt power supply and generates all the required
voltages for the rs-232 protocol. I connect to a DB-9 connector with three
wires using only ground, transmit, and receive. I have achieved speeds of
19.2 kbaud with this setup.
                                        Good Luck
                                        Keith Causey