i.MX8 UART baudrate mismatch

[Lincoln_Dessen]

Dear all,

I have this strange baudrate issue in the product using i.MX8QM with Android 9.

ttyLP3 (UART3) default baudrate is 9600.

I run stty command setting it to 19200.

/ # stty -F /dev/ttyLP3
speed 19200 baud; line = 28;

However, the baudrate on uart bus measured from oscilloscope is only 5760 (please check the attachment below).

[Zhiming_Liu]

Hi @Lincoln_Dessen 

Please try to test other baudrate using oscilloscope