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When in doubt, check baud rate and framing From: Sungjoon <> To: Sent: Thursday, December 8, 2011 7:26 PM Subject: [ts-7000] TS-7300 COM3~COM4 output is not working Hi,
I'm trying to use COM3~COM5 of the TS7300 but the ports are not working correctly. COM1~COM2 work very well. Input to the ports are working find but the output is not. I simply sent one character and probed the TX with oscilloscope. Sometimes there is a valid output but sometimes the output is not correct. When not transmitting, the output should be low but it's stuck to high sometimes. Here is the code I'm using. Can anyone help me? unsigned char value; unsigned char *val_buf; fd = open("/dev/ttyT8S0", O_RDWR | O_NOCTTY | O_NDELAY); fcntl(fd, F_SETFL, 0); value = 16; val_buf = &value; write(fd,val_buf,1); __._,_.___
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