摘要
本文介绍了一款新型的基于低压电力线的智能载波模块,该设计选择PHILIPS公司的一款8位单片机P89LPC932作为核心控制芯片,外部具有标准的UART、I2C、SPI串行通讯接口;采用相位脉冲调制解调法在低压电力线上调制和解调信号;采用改进的Modbus协议进行数据在低压电力线上的传送。
This paper has introduced one kind of new intelligent Low-PLC modem, which is based on P89LPC932,a kind of 8-bit microprocessor of PHILIPS company. In the design , data transmitted by serial interface, such as UART,I2C,SPI. Signal transmitted on Low-PLC with the method of phase pulse modem. Improved Modbus protocol is chose.
出处
《微计算机信息》
2009年第14期266-267,302,共3页
Control & Automation
