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- Path: news.gate.net!not-for-mail
- From: dhaire@gate.net (doug haire)
- Newsgroups: comp.dcom.modems
- Subject: Re: Is USR going to support 42bis+ on future courier upgrades?
- Date: 1 Apr 1996 00:24:15 -0500
- Organization: CyberGate, Inc.
- Message-ID: <4jnp9v$220e@seminole.gate.net>
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-
- Greg Bretting (bretting@insync.net) wrote:
- : On 29 Mar 1996 01:59:32 -0500, dhaire@gate.net (doug haire) wrote:
- :
- : >: Not only that, but keep in mind that in the above example, only _one_ CPU
- : >: and DOS environment is servicing the interrupt load for _both_ ports.
- : >
- : >Only one port: the receiving unit.
- :
- : No _both_ ports... I was sending data bi-directionally (full duplex).
- : But, enough about that...
-
- The receiving CPU services the receiving port, the sending CPU cannot
- service the receiver's port.
-
- : >: Well, okay then, let's deal with the examples I've posed so far that aren't
- : >: "specialized" software - namely, the QModem Pro log I posted previously and
- : >: the Procomm Plus/Win 2.11 screenshot I uploaded to alt.binaries.misc (which
- : >: I posted yesterday, have you seen it?)- both of which demonstrate
- : >: throughput on a DOS platform in excess of 11,000 cps. Whatever the
- : >: limitations of DOS may be (and I'm not saying there aren't any), it doesn't
- : >: take exotic programming to overcome them - it would appear to me that just
- : >: about any competently written and properly configured comm app will do just
- : >: fine.
- : >
- : >Just do what I did. Link two computers up via a null modem cable and run
- : >the comm program of your choice in each computer with the ports locked at
- : >115200 and then come back with the results, ok?
- : >
- : >That's all I ask.
- :
- : Okay, fair enough. I rounded up two Compaq LTE Elite 4/75CX notebooks, two
- : copies of Procomm Plus for DOS, and a null modem cable. Hooked everything
- : up, booted to plain DOS 6.20, set the DTE rate to 115200 at each end, and
- : started transferring files. Guess what? It worked perfectly, every time,
- : both directions, _zero_ errors reported. I sent app. 10MB of data between
- : the machines without a hitch.
- :
- : Now Doug, I don't know why it didn't work for you - maybe your comm
- : software was at fault, maybe you didn't tie a chicken head to the cable and
- : use the right number of candles, who knows? <g>
- :
- : All I know is that it worked for me.
-
- Must have been hallucinations, I guess, obviously no one else sees a
- problem. I'm through arguing about it since I only know what I did and
- what happened.
-
- Oh, the comm program on each end was simply a protocol driver: DSZ.
-
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