基于PC与单片机间的RS232通信，实现信息的交互，其中，PC为主机，通过RS232电缆多头与从机MSP430连接，即一台PC机可访问各台从机，对每台从机的访问是通过对从机设置不同的地址来实现的，每台从机处于监听状态，程序上来说就是每台从机在此时只接受地址信息，并与自己的地址进行匹配，如果匹配一致，则此时这台从机程序设计时便可识别数据信息，此时PC主机便可通过传输特殊命令数据实现对单片机“发号施令”，是MSP430单片机执行主机想让做的事，这便是基于PC机的多机通信来实现实践中某些控制的基础。-RS232 communication between the PC and SCM, to achieve information interaction, which, PC host via RS232 cable bulls connection with the slave MSP430, that a PC can access each slave machines, access to each slave to achieve a different address from the machine settings, each slave in a listening state procedure, each slave at this time will only accept the address information and address match, if the match is consistent, then this When can identify the data from the computer program design information, the host PC can be " calling the shots"　on the single-chip transmission special command data the MSP430 MCU execution host wanted to do something, this is the PC-based The multiprocessor communication to achieve some control on the basis of the practice.