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[TDA4M] Question about uart device in Main domain.

Soolim Ruy
Intellectual 440 points

Hi,

I have a question about uart device in Main domain.

When usb cable is connected with TDA4 EVM usb2uart port, there are 4 COM channels detected at the PC for example, COM0,1,2,3.

When COM0 is attached using a serial tool, boot logs in main domain are printed out the terminal, but there are any logs printed at COM1, 2, and 3 terminal.

Q1) What is the usage of COM1, 2, 3 uart?

       The reason why I'm asking is that I want to use 1 channel or 2 channels USB2UART IC not 4 channels IC at TDA4 EVM.

Q2) For debugging Main Domain side(A72, other cores in Main domain), is it enough to use only COM0 uart?

Regards,

Soolim