SOLVED was: Serial port (com1) baud rate oddity

[Richard P. Williamson]

The long and the short of it:

>According to stty, ba is 1355.
>blah# stty -a -f /dev/ttyd0
>speed 1355 baud; 0 rows; 0 columns;

My /boot/loader.rc had 

set console=vidconsole
boot -h

What I was trying to do was get the console output to go to
/dev/null or to the (non-existent) video device (see the other
post :>).  

For some reason, that still had the data coming out the serial
port, only at 1/8th the speed.  

I removed the -h and the speed returned to 9600.  

The question subject:  boot messages to /dev/null  is the
follow up.

Thanks!
rip


At 09:33 23/03/2004, Richard P. Williamson wrote:
>At 08:31 23/03/2004, Richard P. Williamson wrote:
>>At 17:41 22/03/2004, Nathan Kinkade wrote:
>>>tip gets it configurations from /etc/remote.  Make sure that "com1" in
>>>/etc/remote is set with appropriate values.  The default is:
>>>
>>>sio0|com1:dv=/dev/cuaa0:br#9600:pa=none:
>
>According to stty, ba is 1355.
>blah# stty -a -f /dev/ttyd0
>speed 1355 baud; 0 rows; 0 columns;
>lflags: -icanon -isig -iexten -echo -echoe -echok -echoke -echonl
>        -echoctl -echoprt -altwerase -noflsh -tostop -flusho -pendin
>        -nokerninfo -extproc
>iflags: -istrip -icrnl -inlcr -igncr -ixon -ixoff -ixany -imaxbel -ignbrk
>        -brkint -inpck -ignpar -parmrk
>oflags: -opost onlcr -ocrnl oxtabs onocr onlret
>cflags: cread cs8 -parenb -parodd hupcl clocal -cstopb -crtscts -dsrflow
>        -dtrflow -mdmbuf
>cchars: discard = ^O; dsusp = ^Y; eof = ^D; eol = <undef>;
>        eol2 = <undef>; erase = ^?; erase2 = ^H; intr = ^C; kill = ^U;
>        lnext = ^V; min = 1; quit = ^\; reprint = ^R; start = ^Q;
>        status = ^T; stop = ^S; susp = ^Z; time = 0; werase = ^W;
>
>On the sink machine, I did 'tip -1355 com1' and got text instead
>of @@ @@@@@@ @ @ @@@ etc.  But why did the source machine decide
>to use 1355 in the first place?
>
>blah# grep com1 /etc/remote
>com1:dv=/dev/cuaa0:br#9600:pa=none:
>blah# grep 1355 /etc/*
>services:intuitive-edge 1355/tcp   #Intuitive Edge
>services:intuitive-edge 1355/udp   #Intuitive Edge
>blah#
>
>This is what happens if I try to force it to 9600:
>
>blah# stty -f /dev/ttyd0 speed 9600
>1355
>blah# stty -f /dev/ttyd0 9600
>blah# stty -a -f /dev/ttyd0
>speed 1355 baud; 0 rows; 0 columns;
>...
>
>Possibly it won't let me adjust the baud rate, as the device is busy:
>blah# tip com1
>tip: /dev/cuaa0: Device busy
>link down
>blah#
>
>So how can I idle the device long enough to try resetting the
>speed?
>
>blah# sleep 60 vs. Seiko is a dead heat, so at least the system
>clock appears to be ticking at the correct rate.
>
>rip 
>
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-- 
Richard Williamson           richard.williamson at u4eatech.com
U4EA Technologies Ltd                   +44 (0) 117 373 6760
Bristol, UK   BS1 6PL                                  x5030