Subject: Re: Serial line speed
To: None <>
From: Stephen J. Roznowski <>
List: amiga-dev
Date: 03/09/1994 23:12:55
> From: (Michael L. Hitch)
> On Mar  6,  1:08pm, "Stephen J. Roznowski" wrote:
> > 
> > Is there any reason why the speeds 57600 and 115200 are not
> > supported by ser.c?
> > 
>   My system supports 56700 and 76800 and I had it patched for 115200 at
> one point.  My 28Mhz PPI '040 board had some problems running at 76800,
> but I suspect they ocurred when the GVP driver was accessing the disk.
> I'm going to try it again with the gvp_max_dma reduced (it defaults to
> 64K) and see if it will run reliably at 76800.  I think at 115200 I had
> quite a few problems, so I didn't bother adding that.
>   When I had a 25Mhz 68030 accelerator, I had quite a few problems trying
> to run at 38400 and had to drop back to 19200 to get reliable transfers. 
> [The 68030 system only had 2MB of 32 bit memory and 6MB of 16 bit memory
> (configured as 8MB contiguous), so I wasn't too suprised at this.]

Okay, I'm still confused.... When I use my A3000 running AmigaOS
(running term3.4), I have no problem using my modem at 57600; however,
you are saying that my A3000 running NetBSD is unable to run at this
speed... [Also, I understand that there is a replacement serial.device
that runs at 115200]

Can someone help me to understand this?