Subject: Re: IPX serial ports...
To: None <email@example.com>
From: Ju\"rgen Fluk <firstname.lastname@example.org>
Date: 06/24/1996 22:43:04
> Date: Sun, 16 Jun 1996 17:20:35 -0700
> From: email@example.com (Greywolf)
> Is there any way of getting the serial ports on a SPARCstation IPX
> (the din-8 -> DB-25 thingies) to go faster than 38400? Has anyone
> tried? I can't quite seem to locate the proper place in the kernel
> for getting and setting the line speed, and where the timing delays
> actually happen.
> What kind of chip sits on an IPX port, anyway?
> It is a Zilog 85C30, it cannot go faster than 38400 at least on sun4c
> because of the crystal clock frequency being fed into it.
> David S. Miller
The baudrate table in the SunOS zs driver says value 2 for B38400. So
with "0" the 8530 should run with 76800, and "1" gives 51200. Right ?
I know that at least two 8530 uarts can speak with each other at baudrate
generator value 0 (from a target hardware which even has the same quartz).
So the problem is "you *can* run faster, but you won't get 115k" ?
firstname.lastname@example.org in real life: Ju"rgen Fluk
marco GmbH, 85221 Dachau tel: +49 8131 516142