本程序旨在完成 并口 sram 232串口的通信实验 作者亲测可以使用。程序设计到两个时钟及多进程通讯和单进程状态机的基础模块。-This program is designed to complete the parallel port SRAM 232 serial communication experiment of pro-test you can use. Programming to the basic module of the clock and multi-process communication and single-process state machine.