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Path: utzoo!utgpu!water!watnot!watmath!mks!wheels
From: wheels@mks.UUCP
Newsgroups: comp.sys.atari.st
Subject: Re: CTS/RTS Flow Control Problems
Message-ID: <228@mks.UUCP>
Date: Fri, 13-Mar-87 09:28:53 EST
Article-I.D.: mks.228
Posted: Fri Mar 13 09:28:53 1987
Date-Received: Sat, 14-Mar-87 06:01:32 EST
References: <453@ll-xn.ARPA> <25784@rochester.ARPA>
Organization: Mortice Kern Systems, Waterloo, Ont.
Lines: 24
Keywords: TOS RS232 CTS RTS BBS
Summary: doesn't sound right to me

In article <25784@rochester.ARPA>, stuart@rochester.ARPA (Stuart Friedberg) writes:
> The chips that handle the RS-232C interfaces treat these
> signals as EDGE-TRIGGERED.

I remember reading that, I think in the Abacus book, but then I also heard
that was only in the early versions and had been changed for TOS in ROM.

> The Avatex (and obviously the US Robotics)
> modem asserts CTS as a CONTINUOUS signal until its buffering fills up
> (because the ST is sending characters faster than the modem can ship
> them over the phone line).

Now just a second. As far as I know, none of these modems has buffering.
If the ST is sending at 1200 bps, and the modem is sending to the phone
line at 1200 bps, why should there be? Ditto for 2400 bps.

> It does not flicker or toggle CTS for every
> character.  This is a legitimate RS-232C behavior, I believe.

It is the only legitimate RS-232C behaviour. 

-- 
Gerry Wheeler                  {seismo,decvax,ihnp4}!watmath!mks!wheels
Mortice Kern Systems Inc.