通过RS-232通讯接口和PC机建立通讯。PC机侧使用“串口调试助手”等串口调试程序，单片机程序运行后，接收由PC机发来的数据“This is PC.”，并回应“This is PIC24FJ64GA006.”给PC机。-Through the RS-232 communication interface and PC-establish communications. PC-side use " serial debugging aids"　and other serial debugger, SCM program running, receiving from the PC, the data sent " This is PC." , And to respond to " This is PIC24FJ64GA006."　To the PC.