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- Xref: sparky comp.dcom.modems:16756 comp.sys.mac.comm:10858
- Newsgroups: comp.dcom.modems,comp.sys.mac.comm
- Path: sparky!uunet!spool.mu.edu!wupost!gumby!destroyer!ncar!csn!cherokee!huntting
- From: huntting@advtech.uswest.com (Brad Huntting)
- Subject: Re: Set up for a USR 14.4 Sportster
- Message-ID: <1992Nov11.203701.22639@advtech.uswest.com>
- Sender: news@advtech.uswest.com (Radio Free Boulder)
- Nntp-Posting-Host: futureworld.advtech.uswest.com
- Organization: U S WEST Advanced Technologies
- References: <BwLDo3.JFI@cpsc.ucalgary.ca> <1992Oct30.044731.2120@intrepid.com> <Bx3E1y.4n0@cd.com>
- Date: Wed, 11 Nov 1992 20:37:01 GMT
- Lines: 28
-
- Vladimir Vukicevic writes:
- > I had this same problem before... I think that Hardware Handshaking isn't
- > enabled on the unix side. On SysV, try 'stty rtscts'. I'm not sure of the
- > BSD equivlent; it doesn't have rtscts.
-
- Vic Serbe writes:
- > Sure it does. It's just called crtscts.
-
- This option is only available on the later Posix versions of BSD
- including the all powerfull BSD386 from BSDi. The old 4.2BSD line
- discipline didn't support hardware flow control.
-
- What you really need to use is both CRTSCTS and CRTSOFLOW (in the
- termios->cflags word), otherwise the modem can overflow the kernal
- buffers in the serial port. Unfortunatly, the CRTSOFLOW flag is not
- supported by the stty, and is not a standard Posix option.
-
- I'm not shure wheather SVRx will support the use of RTS as "Ready to
- Recieve" (The DCE (the modem) should only transmit characters when RTS
- is hight) to throtle the dataflow from the DCE. This is the only
- useful thing to do with RTS these days (IMHO).
-
- I heard somewhere that using RTS as a "ready to recieve" signal will
- probably be incorporated into RS232-E. Does anyone know anything more
- about this?
-
-
- brad
-