51单片机串口调试程序，pc机发送数据给单片机单片机通过led显示出来-51 serial single-chip debugger, pc machine to send data to the single-chip single-chip through the led display

STM32f103ZE 实现双串口通信。一个接收一个发送，同时也能动态给另外一个串口设置相关参数-STM32f103ZE dual serial communication. One receiving a transmission, but also can dynamically to another serial port settings related parameters