I guess you'd do this if you're sending *highly* compressable data, ie text.
What kind of modem is that and does it offer compression at that rate??
-eric wood
-----Original Message-----
From: Jose M. Sanchez <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Cc: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: Sunday, January 16, 2000 1:54 AM
Subject: RE: high-speed serial port (230400)
>Out of curiosity:
>
>Why would you want to do this?
>
>Since with regular modems you are limited to rather slow data rates anyway,
>you'll be hanging your CPU up dealing with the port NMI/IRQ's, let alone
>latency issues...
>At best you'll need to be sure that your software enables the maximum size
>of the on board I/O buffer of the 16c550. The 16550a's were limited to 16
>bytes...
>
>I hope that the byterunner is a PCI card (which I doubt since you mentioned
>jumpers) since you'll really be taxing the ISA bus.
>
>From my prospective, you'll get BETTER performance from a lower DTE rate.
>
>-JMS
>[EMAIL PROTECTED]
>
>
>-----Original Message-----
>From: fred smith [mailto:[EMAIL PROTECTED]]
>Sent: Friday, January 14, 2000 6:33 AM
>To: [EMAIL PROTECTED]
>Subject: high-speed serial port (230400)
>
>
>Has anyone here used a high-speed serial port? I.e., 230400.
>
>I've got a serial board (Byterunner, 2 ports, 16c550 uart chips) which
>has jumpers to double or quaduple the clock rate so that the speeds you
>choose will be multiplied by either two or four. I've got a modem that
>claims to work at 230400. But when i set the board to double speed last
>night could not get reliable communications with the modem.
>
>If anyone has knowledge of how to do this I'd appreciate pointers.
>
>Thanx!
>
>Fred
>--
>---- Fred Smith --
>[EMAIL PROTECTED] ----------------------------
> The eyes of the Lord are everywhere,
> keeping watch on the wicked and the good.
>----------------------------- Proverbs 15:3
>(niv) -----------------------------
>
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