From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <008501c007c9$81ecbad0$fd2f7ece@kennedy> From: "Prashant Patel" To: References: Subject: Testing the serial port of TQM823L Date: Wed, 16 Aug 2000 16:32:41 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Hello Everyone I am working with TQM823L board. It has two serial ports. I am using one serial port RS-232-2 ( and device ttyS0) to run the kernel stored in flash. Once the kernel is running, i think i can access another serial port RS-232-1 through device ttyS1. I have one program which writes on device ttyS1. When i run that program, it is supposed to turn on the motor attached to serial port RS-232-1(i.e device ttyS1). But it didn't work. When i tested my program with other board, it works fine. When i use "setserial" command, i got following message. >setserial -ga /dev/ttyS0 >Cannot get serial info. : invalid argument. >setserial -ga /dev/ttyS1 >Cannot get serial info. : invalid argument so i don't know where i am making mistake. How could i test whether serial port RS-232-1 is receiving data, whenever i write to device ttyS1? And How could i test whether serial port RS-232-1 is live or not, after running kernel through serial port RS-232-2 (device ttyS0). Thanks Prashant Patel ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/