Date   : Thu, 02 Aug 2007 01:43:44 +0100
From   : jgh@... (Jonathan Graham Harston)
Subject: Comms software

>Message-ID: <06d101c7d1fb$62d940b0$6602a8c0@...>
 
"Dominic Beesley" <dominic@...> wrote:
> I agree however that 19200 cannot be sustained although in Tequila it
> is a fair bit quicker doing XModem at 19.2 than at 9.6 again ultra reliable
> at 19.2 on a longish (50') cable with no shielding or special buffering for
> RS232->RS432.
 
XTerm uses all free memory as the serial input buffer, about 4K on the
BBC. I have had no problems using XTerm connected at 19,200 to a 14,400
modem.  Yes, that's not continuous 19,200, but, say 2K spurts for a 80x24
screen of text and 1K spurts for YModem transfers.
 
Additionally, XTerm fixes the NUL-NUL serial input bug on the Master
Compact.
 
-- 
J.G.Harston - jgh@...                - mdfs.net/User/JGH
BBC IDE Hard Drive Interface - http://mdfs.net/Info/Comp/BBC/IDE