6)If you want to view the output information of the system through the debugging serial port, please use the serial port cable to connect the development board to the computer. For the serial port connection method, please refer to the section on debugging serial port usage.<br>

=== ''' Debug serial port connection instructions''' ===

1)First, you need to prepare a 3.3v USB to TTL module, and then insert one end of the USB interface of the USB to TTL module into the USB interface of the computer