Tool/software:
Hi, TI team.
We are trying to output MCU_UART0 as RS485, the following is the configuration of the device tree:



We copy the new device tree to the SD card and restart the file system. When I check with dmesg | grep ttyS, it seems to have been configured successfully. But when I use the echo command to write data to the ttyS0, nothing happens and it stays there.

When the development board is started, there is the following content output in mcu_uart0, which appears to be used as the mcu console. I'm not sure if this has any effect on using mcu uart0. If so, how can I use or configure it?

Also I want to use WKUP_UART0 as the RS232 and TTL output, it seems that it is also occupied. If I want to achieve my goal, how can I modify or configure it.
The version of SDK I am using is ti-processor-sdk-linux-am62xx-evm-09.02.01.10.
Regards,
Zhang