Dropped character question

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Hi,

On Tue, Aug 03, 1999 at 11:07:24PM -0600, Chip Atkinson wrote:
> with a USR sportster 28.8 modem and another Linux box with a zoom v.34 modem
> dialing out through minicom to test it.  I manage to log in properly and it
> appears that I can send characters rapidly to the machine running mgetty,
> but receiving the data is the problem.  
> 
> I tested this by editing a junk file and pasting from an xterm into this
> window.  The echoed text is all garbled, but when I refresh the screen, all
> the text got into the file properly.  
>
> This indicates to me that the minicom machine is sending properly and that
> the mgetty machine is receiving properly.  
> 
> My questions are, is the problem due to flow control, and if so, what am I
> doing wrong?  

This is very typical of flow control issues on the server side (the
mgetty machine sending data faster than the modem can take), or
non-16550's on the receiver side (overrun).  Check that both modems are
set to RTS/CTS, and that mgetty is using hardware flow control as well.

gert 

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Gert Doering - Munich, Germany                             gert@greenie.muc.de
fax: +49-89-35655025                        gert.doering@physik.tu-muenchen.de