Jacob Joseph wrote:
> Hello. As you should all remember by now :) I have a bitsurfer pro.
> Recently I switched ISPs so I have unlimited 2B access now. Anyways, my
> serial port is a 16550A UART, which, as I understand things tops out at
> 115.2K. This is a far cry from the 128K my line can do, so my question is
> how I can get the full bandwidth. Is there a way to "overclock" the serial
> card(the bitsufer can do 128k serial speed)? Other than that, I should be
> able to switch the chip in the serial card to a 16650 or 16750 right? Where
> can I buy just the chip and how much do they cost?
A 16550A can be fed with up to a 24MHz clock which gives 1.5Mbit/s :)
no need for fancy 16650/16750, even though they should work with
newer kernels (haven't testet).
In 2.0.3x kernels 16650/16750 did not work well.
But maybe you should look at :
Over115K / SHSMOD http://www.devdrv.com/shsmod/
There is a linux patch for kernel <= 2.0.36 and 2.2 .
Over115K shsmod patch for kernel 2.0.37/2.0.38 : http://home3.inet.tele.dk/frda/
These patches gives a higher speed on many mainboards (and IO chipsets).
On AladinV (ex. Asus P5A) only one of the serial ports can be
clocked higher.
I am running kernel 2.2.10, P5A and get 230400bps or 460800bps
The "128K" serial speed is non-standard bps-rate, I don't think
many serial cards support this.
But many ISDN TA's have 230400bps or 460800bps communication on
the serial port. Maybe the bitsurfer pro supports one of these ?
--
mvh Frank Damgaard [EMAIL PROTECTED] | [EMAIL PROTECTED] |fido 2:236/15.2
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