C51下的 485通讯程序. 包括 主机 和从机的程序. 测试通过了的-C51 under the 485 communications procedures. Including mainframe and from the plane procedures. Pass the test

c51 485通讯模块，很好用的程序，直接调用-decoder 485 communication module, the procedure is useful, direct call

RS-485串口通讯子程序，使用C51编写，-RS-485 serial communication subroutine, the use of C51 prepared,

此程序是一份单片机与PC的485通讯程序,通过此程序,可检测单片机485铜须是否正常,在PC端发送数据通过单片机返回相同数据,即为正常.-This program is a microcontroller and the PC 485 program, this program can detect single-chip 485 copper to be normal in the PC sends data through the microcontroller returns the sa