华邦单片机两个双串口RS485数据交换通信，同时在中断中实现，可以保证数据的稳定性 里面加入了相关的协议，保证数据的正确性-Winbond MCU two pairs of serial communication RS485 data exchange, while in the interrupt to achieve, which can guarantee the stability of the data by adding the relevant protocols to en