Subject: Re: serial port problem
To: Jean-Francois Fortier <jefortie@cgocable.ca>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: port-i386
Date: 01/09/2000 17:10:04
On Sat, Jan 08, 2000 at 11:08:24AM -0500, Jean-Francois Fortier wrote:
> Hi there,
> 
>     Strange promblem on 486slc box with 2 serial ports. when I enable
> both com1 and com2 in bios, netbsd crashs after "setting tty flag" . ...
> after many tests, I found the only working solution: Enable only the
> first serial port with 3E8 address (can`t use 3F8).  When netbsd boots
> with this config, I see:
> 
>  "com2 isa0 port 0x3e8-0x3f8 irq5 : ns8250 or 16450, no fifo."

Why isn't it to 0x3f8-0x3ff ?
Usually  serial ports are on:
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo

> 
> I said okay, anyway I only need one serial port for my modem !
> 
> I've configured my pppd to use /dev/tty02 38400 . But I can`t connect.
> When I start the pppd, I see the dtr led on modem commin up ,  but
> nothing else.

I suspect IRQ problem, make sure your serial port really uses IRQ 5.

--
Manuel Bouyer <bouyer@antioche.eu.org>
--