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Old 08-06-2003, 04:51 PM   #1
Registered: Jan 2002
Posts: 72

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Serial Port

Working off a fresh full install of Slack9.

I have a matrix orbital serial LCD, it takes ASCII from the serial port and displays it. So I tried to write directly to the serial device.

echo "foo" > /dev/ttyS0

I tried this for S0 - S9

Didn't work. Next i fired up minicom and played around in there for a while. Still can't get it to work. What am I missing? What needs to be done to get the serial port working under slackware 9?

Thanks, I don't use the serial port much and I'm clueless

Old 08-07-2003, 12:13 AM   #2
LQ Newbie
Registered: Aug 2003
Distribution: Slackware v9.x/Red Hat v8.x
Posts: 4

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Make sure your port speeds are correct at both ends. You may want to try 9600bps on both the terminal and Comm Port (ttyS#). If in doubt of the speed on the Comm Port, use the 'setserial' command. You can usually find a good example, of it's usage, in the /etc/rc.d/rc.serial file. And, as always consult your local man page for more info :-). Good luck!



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