【摘要】 通过单片机实现工业控制领域内的远程控制、测试与通信等任务,是近年来发展的一个趋势。基于W77IE58 单片机的双串口特性,通过采用 RS-232 的串行通信协议,由单片机串口给 Modem发送 AT 指令与特定字符,通过电话线实现了 PC 机与被控设备之间的远程串行通信。本设计的串行通信接口简单、经济、实用,在工程领域以及工业控制中具有一定的实用性和参考价值。更多还原

【Abstract】 The remote serial communication between PC and peripheral is introduced, which is based on the W77IE58 microchip with two serial ports. When the system sends AT instruction and certain character to a modem based on the RS-232 protocol, the remote communication between PC and peripheral can be implemented by telephone line. The system designed is simple and applicable, which offers a good reference for engineering applications.更多还原