EC200U-CN Debug UART not working

I have recently started to work with EC200, however, I am not able to use the debug UART( pin no. 12, 11) for serial tapping, while using QL_UART_PORT_3. I have currently not set any function to the pins as pin 12 and 11 are not mentioned in the pin configuration file.

Also, is there any way to determine which port no. corresponds to which UART interface(main/debug/auxiliary).

Hi dasaresoham,
UART Debug Port, as the name suggests, is for debug only (on our RDA-based modules), and is not meant for normal use.
And UART MAIN is UART_PORT_1, UART1 is UART_PORT_2.
If you have more questions, please let me know!