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From: georgew@tekgvs.UUCP (George Wilson)
Newsgroups: net.micro.cpm
Subject: Help with Kaypro Serial Port
Message-ID: <1304@tekgvs.UUCP>
Date: Thu, 12-Dec-85 01:30:51 EST
Article-I.D.: tekgvs.1304
Posted: Thu Dec 12 01:30:51 1985
Date-Received: Fri, 13-Dec-85 08:22:53 EST
Organization: Tektronix, Beaverton OR
Lines: 37




	Here is a question for the Kaypro people out there.
	
	I have a early Kaypro IV and would very much like to initialize
	the serial port.  Iam working on writing a terminal program for
	a special host.  The host needs to have the communications setup
	a special way.  From the documentation provided Iam not able to
	figure out how to communicate with the registers of the SIO.
	
	When I run my terminal program it does not send or receive any
	characters from the serial port.  My program sets the baud rate
	bye writing a hex 0E to port 0.  This should set me up for 9600.
	This is true if the system was reset.
	
	If I run one of my existing terminal programs, like SMODEM, and
	exit after it has initialized the serial port my program runs
	just fine.
	
	The system comes with a book that gives the port numbers and
	their functions as follows:
	
	Port#		Function
	0		Baud rate
	4		R/W port for characters
	6		Status/Control
	
	
	Is there something Iam missing in the documentation?
	Is there some example program I could look at?
	
	If it matters Iam programming in LMI Z80FORTH.
	
	Please reply to me at   (503) 627-6596  or (503) 645-0765
	
	Thanks Jed