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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