平台：LPC1768+lwip+FreeRtos 功能：串口网关监听，一共两组收发串口和一个网口，将每组串口收发的数据，经网口发送到上网机，上网机发送的数据经网络发送到指定的串口-Platform: LPC1768+lwip+FreeRtos Function: Serial Gateway monitor, send and receive a total of two serial ports and one Ethernet port, serial port to send and