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- Path: pathway1.pathcom.com!ts2l3
- From: insystem@pathcom.com (Geoffrey Welsh)
- Newsgroups: comp.dcom.modems
- Subject: Re: 28880 bps with a 386 ???
- Date: 10 Feb 1996 17:45:13 GMT
- Organization: InSystems Technologies Inc.
- Message-ID: <4filj9$ocd@pathway1.pathcom.com>
- References: <4fce3s$ku8@ftp.univie.ac.at>
- NNTP-Posting-Host: ts2l3.pathcom.com
- X-Newsreader: News Xpress Version 1.0 Beta #4
-
- In article <4fce3s$ku8@ftp.univie.ac.at>,
- a9300343@unet.univie.ac.at (Ralph Staudigl) wrote:
- >Can anyoen tell me if it ist possible to reach 28800 bps with a 386
- >processor ???
- >A friend of mine told me that it would be impossible.
-
- It is possible and I have proof.
-
- A friend of mine runs a BBS (with some help from his friends), and his second
- line (for Fido connections and paying users) is a USRobotics Courier 33.6
- plugged into a 20 MHz 80386SX and operating at 57600 bps serial port speed.
- Of course, we use a NS16550A UART.
-
- My home machine - on which I'm typing this - is a 40 MHz 80386DX with a
- Sportster 28.8 modem operating at 115200 bps serial port speed, even under
- Windows for Trumpet, which is how this message is being delivered.
-
- A 38400 bps serial port speed is the minimum for a 28.8 modem and it would
- probably be too restrictive for a 33.6 (that is, if you got a 33.6 connect).
- Most systems which have problems at these speeds are poorly configured (e.g.
- IDE 'block mode' doesn't respond to serial interrupts during multi-sector
- transfers to/from disk), but so many people have experienced problems that
- many myths have evolved into 'conventional wisdom'.
-
- Geoffrey Welsh, Developer, InSystems Technologies Inc.: insystem@pathcom.com
- At home: geoff@zswamp.uucp, [xenitec.on.ca|m2xenix.psg.com]!zswamp!geoff
-