Introduction - If you have any usage issues, please Google them yourself
The main function of this presentation uart serial communication routines AX516/AX545 development board receive and transmit functions, while the program does not receive the information sent by the PC, the serial port through the serial port will continue to send " Hello ALINX AX516" to the PC information. When the user data transmitted the PC to the AX516/AX545 development board, the program will receive the data the serial data back to the PC, in order to achieve the Loopback functions.