Path: utzoo!attcan!uunet!lll-winken!ames!oliveb!3comvax!tymix!antares!pnelson
From: pnelson@antares.UUCP (Phil Nelson)
Newsgroups: comp.sys.amiga.tech
Subject: Re: modem drops 0x11
Summary: disable X-on X-off flow control
Keywords: modem, serial, flow control
Message-ID: <451@antares.UUCP>
Date: 12 May 89 06:26:55 GMT
References: <431ebd96.15abd@gtephx.UUCP>
Reply-To: pnelson@antares.UUCP (Phil Nelson)
Organization: Tymnet QSATS, San Jose CA
Lines: 32

In article <431ebd96.15abd@gtephx.UUCP| carnesm@gtephx.UUCP (Mark E. Carnes) writes:
 ...cut some...
|device, and had the receiving computer dump everything it received.  All the
|characters were transmitted except for 0x11.  I reproduced it several times
|each time when a 0x11 should have been sent it "disappeared".  
|
|I am using a Supra 2400 modem.  The program is written in C and just uses pretty 
|typical IO, (i.e. Opens the serial.device and issues a write command specifying 
|the string and its length) and of course it works for everything but the 
|character with a value of 0x11.
|                        

 FINALLY! a question I can answer :-)

 Do you mean 0x11 as in ASCII 11Hex = DC1 = X-on?

 You may find that not every other character is transmitted. Try 0x13 for some
 real fun. Then make sure X-on X-off flow control is disabled for every device
 (modems and serial.device) in the link and try again.

|-------------------------------------------------------------------------------
|Mark Carnes (carnesm@gtephx)
|UUCP: {ncar!noao!asuvax | uunet!zardoz!hrc | att}!gtephx!carnesm
|AG Communication Systems (formerly GTE), Phoenix
                                    ^^^
 -I've heard of them, they do data communications, don't they? ;-)

-- 
Phil Nelson at (but not speaking for)                  OnTyme:NSC.P/Nelson
Tymnet, McDonnell Douglas Network Systems Company       Voice:408-922-7508
UUCP:{pyramid|ames}oliveb!tymix!pnelson              LRV:Component Station
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