[comp.sys.atari.st] help controlling serial port

saj@chinet.chi.il.us (Stephen Jacobs) (01/28/89)

Previous requests for help have worked, so here I go again.  I've been
playing with uupc for the ST, and have been hindered by an inability to
set the level of debug output from the command line.  What happens is that
whenever I try to use the message printing function (which writes both to
the screen and to a disk file) between the time the modem is initializes
and the time the connection to the other machine is made, it interferes 
with the operation of the modem.  Stuff like wrong numbers and resetting
speeds that were already set.  I have checked fairly close to the place
where strings are sent to the modem; they seem to be correct, so I suspect
TOS (sorry fellas at Atari: maybe with 1.4 we'll learn NOT to suspect TOS
when strange things happen).  Any possibility that disk or screen writes 
could send garbage to the serial port in 1985 TOS?
        Thanks to all who even think of helping      Steve J.