瑞萨UART,四路PWM波输出，可以用来控制无刷直流电机，简单易操作-Renesas UART, four PWM wave output, can be used to control brushless DC motor, easy to operate

直接使用的 串口程序,已经经过验证，能正常收发数据。。。。。。。。(i have test the program that is correct and simple to use the uart4 and uart5 program)

The devices embed four universal synchronous/asynchronous receiver transmitters (USART1, USART2, USART3 and USART6) and four universal asynchronous receiver transmitters (UART4, UART5, UART7, and UART8). These six interfaces provide asynchronous c