Linux-Hams archive - September 1997: Re: Baycom problem - success
Re: Baycom problem - success
Hamish Moffatt (zwtyar.ajtmn@nuigalway.ie)
Fri, 5 Sep 1997 01:30:13 +1000
On Mon, Sep 01, 1997 at 03:59:00PM -0000, Mike Bilow wrote:
> Hamish Moffatt wrote in a message to Mike Bilow:
>
> HM> software under DOS, and it would not transmit properly. The
> HM> baycom people said when we emailed them that some of the new
> HM> integrated IO chips (Intel HX in this case) may not support
> HM> the special mode Baycom uses since it is not used much, and
> HM> to try a standard 16450 card...
> HM> We have not tried it yet though.
>
> I would consider an incompatible emulation to be "broken" within the meaning of
> my earlier comment. The original message was talking about removing a socketed
> 40-pin 16450 and replacing it with a socketed 40-pin 16550, which should have
> no effect on Baycom. Obviously, if the motherboard has built-in serial chips
> that only partially emulate the 16450, then any software could break if it
> relied upon the unemulated modes.
>
> With special regard to the Intel 430HX chipset, it does not integrate serial
> I/O support for RS-232 interfaces as far as I know. If everyone who used a
> 430HX motherboard has trouble with Baycom, you would have heard a lot of
> screaming by now and someone would have fixed the Baycom driver. Such
> motherboards have some additional chips to handle the serial ports.
This is true. Mine has the UMC chips I believe, and so does the one
we were testing Baycom with. The system would start the carrier,
but not modulate it, and never disconnect. (We would switch the modem
off to avoid annoying other users.) :-(
Hamish
--
Hamish Moffatt, StudIEAust rofyukuz.lpukaw@roke.co.uk, wqdeafka@opticnet-bg.net
Student, computer science & computer systems engineering. 3rd year, RMIT.
http://hamish.home.ml.org/ (PGP key here) CPOM: [***** ] 53%
The opposite of a profound truth may well be another profound truth. --Bohr