Because it is converted into dual serial ports, you can select these two serial ports in the serial port debugging assistant, just switch the serial port numbers. However, some serial ports can only be debugged by COM 1~COM4. However, the serial number of USB to serial port is often large, so it is impossible to choose serial port. As shown below, the commonly used serial debugging assistant has only four serial ports to choose from.

The other one: COMMIX is easy to use, and the maximum serial number can reach 255. The following figure