Subject: serial stuff
To: None <>
From: William J Coldwell <>
List: amiga-dev
Date: 07/20/1994 23:37:19
Imagine, if you will, tty00 being used for something other than a (C)SLIP/PPP  
link, but as an actual dial in.  Granted it took me a while to figure out to  
strap the modem into "dumb" mode, otherwise it would hang up the moment there  
was a 'RING'.  So, I figure, ok...  I have a BBS you can telnet/rlogin to, so  
I can now offer a NetBSD login: with a script login for doing an rlogin -8 -E  
bbsmachine.  This works wonderfully.  So, I try a Zmodem upload to the BBS  
(via the NetBSD dialin).. works beautifully.. getting ~3800cps on a  
reasonably compressed file, with the serial port at 57600.  Now, the bad  
news... I downloaded, and found that I was getting errors... to the point  
that the xfer was giving up.  I noticed that the NetBSD machine had buffered  
a whole bunch of stuff, and was just spewing it, even though my terminal was  
requesting a block resend.  So, I noticed that we have a pretty hefty buffer  
being setup for the serial port... has anyone played with it for doing high  
speed xfers, and if so, please tell me what I have set up wrong.  On the  
converse, has anyone changed the buffer sizes to see what the differences  


 William J. Coldwell - - Cryogenic Software