Message-ID: <3106@fortune.UUCP>
Date: Thu, 19-Apr-84 15:06:36 EST
Article-I.D.: fortune.3106
Posted: Thu Apr 19 15:06:36 1984
Date-Received: Fri, 20-Apr-84 02:16:10 EST
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Organization: Fortune Systems, Redwood City, CA
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#N:fortune:14700012:000:602
fortune!mbr    Apr 19 10:34:00 1984

I am writing code to do I/O using an RS-232 port on the IBM PC, and
I need to support the following forms of handshaking:

	software: DC1/DC3
		  ETX/ACK
	hardware: DSR/DTR
		  CTS/RTS

I have read the section entitled "IBM Asynchronous Communications Adapter"
(pp. 1-183 to 1-212) of the IBM PC/XT Technical Reference.  I can find no
information on how to set up handshaking.  Do I have to code the protocol
myself, or have I missed something in the documentation?

Please reply by mail.  I will summarize to the net when the responses dwindle.

	{ihnp4,ucbvax!amd70,hpda,sri-unix,harpo}!fortune!mbr

Message-ID: <314@whuxle.UUCP>
Date: Fri, 20-Apr-84 08:51:28 EST
Article-I.D.: whuxle.314
Posted: Fri Apr 20 08:51:28 1984
Date-Received: Sat, 21-Apr-84 01:17:41 EST
Sender: jph@whuxle.UUCP
Organization: Bell Labs, Whippany
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#R:fortune:14700012:whuxle:22700024:000:241
whuxle!jph    Apr 20 08:51:00 1984

you have to write a routine to implement the protocol that
you desire. The async support device only provide an
interface to put/get characters from the comm line, with the
assumptions that the user is handling any protocol related
actions.

Message-ID: <3146@fortune.UUCP>
Date: Tue, 24-Apr-84 15:05:22 EST
Article-I.D.: fortune.3146
Posted: Tue Apr 24 15:05:22 1984
Date-Received: Thu, 26-Apr-84 01:30:01 EST
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Organization: Fortune Systems, Redwood City, CA
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#R:fortune:14700012:fortune:14700013:000:299
fortune!mbr    Apr 24 10:57:00 1984

This is in reference to my question about how to do handshaking on an
RS-232 port on the IBM PC.  I've received several responses, all saying
essentially the same thing: you have to code the protocol yourself.
Many thanks to all who responded.

	{ihnp4,ucbvax!amd70,hpda,sri-unix,harpo}!fortune!mbr

Message-ID: <874@brl-vgr.ARPA>
Date: Wed, 25-Apr-84 12:28:27 EST
Article-I.D.: brl-vgr.874
Posted: Wed Apr 25 12:28:27 1984
Date-Received: Fri, 27-Apr-84 00:15:43 EST
References: <3106@fortune.UUCP>
Organization: Ballistics Research Lab
Lines: 7

Did you ever notice that in the PC glossary (obviously condensed from
some larger IBM dictionarry) that the following definitions appear:

	DSR:	Data Set Ready
	DTR:	Distribution Tape Reel

-Ron