Part Number: AM5728
Other Parts Discussed in Thread: SN75C185,
Hi,
The character corruption occurred on serial console of Tera Term via UART port when the customer input some keys from PC to their own board based on AM5728. According to their investigation, it seems that signal polarity on uart3_rxd line was inverted. The signal between SN75C185 and uart3_rxd is low “0” during no communication, and start bit looks like “1”.
Is it possible to invert polarity on uart3_rxd for changing start bit as “1” by setting any register ?
Or do you have any idea to solve this ?
The uart3_txd works correctly. The signal is high “1” during no communication, and start bit is “0” active low. Therefore, the characters were displayed during booting. AM5728 could send data to PC correctly.
Thanks and regards,
Hideaki
