一个简单的可实现单片机485主从通信的程序-one simple master-slave RS485 communition procedure

Master-Slave communication system. Master system is connected to n number of slave systems over serial port (RS 485 network) in multi-drop architecture. Figure 1 shows the typical configuration of this system. Here only one system can talk at a time

STM32 485通讯源码，分别是主机和从机的源程序。-STM32 485 communication source, namely the master and slave source.