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- Newsgroups: comp.dcom.modems
- Path: sparky!uunet!gatech!usenet.ins.cwru.edu!agate!dog.ee.lbl.gov!network.ucsd.edu!qualcom.qualcomm.com!athena!rkimball
- From: rkimball@athena.qualcomm.com (Robert Kimball)
- Subject: Re: ZyXEL voice and flow control
- Message-ID: <rkimball.726604546@athena>
- Sender: news@qualcomm.com
- Nntp-Posting-Host: athena.qualcomm.com
- Organization: Qualcomm, Inc., San Diego, CA
- References: <C0Goy4.8A0@cs.psu.edu> <1499@Nightmare.ddt.sub.org>
- Date: Sat, 9 Jan 1993 18:35:46 GMT
- Lines: 28
-
- ud@Nightmare.ddt.sub.org (Ulrich Dessauer) writes:
-
- >fenner@postscript.cs.psu.edu (Bill Fenner) writes:
- >[.. SW-flow control ..]
- >~ Hardly; XON/XOFF is the TTY driver's job. Set IXON, and feel free to write
- >~ gobs and gobs of data and let the TTY driver worry about flow control.
- > I think the problem is that the voice data stream may contain
- >these software flow control characters as part of the data itself. So
- >you need some kind of "one way flow control", i.e. while receiving data
- >you can control the flow with XON/XOFF but you must not interpret XON/XOFF
- >in the data got. I don't know if *IX is able to handle this, OS-9 doesn't
- >support it.
-
- So, if the RX data from the modem has XON/XOFF characters, when I send
- this data back to the modem (TX mode) do I need to write a DLE before
- I write the XON/XOFF character or do I just send the character? Will
- the modem correctly handle XON/XOFF chars on TX?
-
- > Prefering hardware flow control, U//i
-
- Hardware flow control would eliminate the confusion...
-
-
- --
-
-
- Bob Kimball
- rkimball@qualcomm.com
-