本人上载的几个c文件为自己所写的代码,是关于自动化设备广泛使用的HART协议的主机与从机之间的通信过程(通过串口). fi_exist.c----此文件中的函数用于检测是否有从机设备与主机相连,在主机中使用. ,I uploaded a few c files for their own written code, is the extensive use of automation equipment on the HART protocol between the host and fr