PC上运行串口大师等串口调试软件，通过USB接口向开发板发送数据, 开发板收到数据帧后，将其由红外端口发送；如开发板接收到红外信号，当红外端口接收到完整数据帧后，开发板将数据由USB口送至PC。本程序未采用NEC或Philips的红外协议，旨在展示一种像使用串口一样　使用红外接口的方式，实验表明，这一方法十分有效，在1200bps、3米　　　　　距离的条件下仍有非常好的收发效果。(PC run serial master serial debugging software to send data to the development board through the USB interface, the development board to receive the data fr a me, which is composed of the infrared port development board; such as receiving the infrared signal, when the infrared port receives the complete data fr a me, data from the USB port development board will be sent to PC. This program does not use NEC or Philips infrared protocol. It aims to show a way of using infrared interface just like using serial port. The experiment shows that this method is very effective, and still has very good receiving and sending effect under the condition of 1200BPS and 3 meters distance.)