在开发的单片机系统中使用232通信，实现2个模块之间的数据交换。写好底层驱动，只需调用相应函数，及填写部分代码即可。单片机型号为pic30f6013.-SCM system in the development of the use of 232 communications, to achieve two data exchange between modules. Written low-level driver, simply call the appropriate function,