24.1. USB CDC Dual_Serial¶
24.1.1. Overview¶
This example project shows USB CDC Serial
PC sees two serial ports via Device Manager
24.1.2. Board Setting¶
Connect a USB port on PC to the PWR DEBUG port on the development board with a USB Type-C cable
Connect a USB port on PC to one of USB port on the development board with a USB Type-C cable
24.1.3. Running the example¶
When the project runs correctly
The computer can automatically recognize and install the USB to serial port driver and enumerate a composite device with two com ports
Enter any uppercase or lowercase letters at the serial terminal. The device can convert the entered uppercase or lowercase letters to lowercase letters through a smaller serial port number, and convert lower case letters to upper case letters through a larger serial port number