基于KM34的光功率远程实时自动监测仪设计

Design of optical power remote real-time automatic monitoring meter based on KM34

提出了一种基于飞思卡尔KM34微处理器的光功率远程实时自动监测仪的设计方案。利用KM34片上的24位Σ-Δ模数转换器(ADC),加上外围电路,实现4路光功率的实时采集;搭载W5100网络芯片,通过SPI与KM34相连,实现以太网通信。介绍了主要模块的硬件结构、光功率采集软件流程和远程交互命令数据格式和基于UDP的以太网通信接口流程。

A design of optical power remote real-time automatic monitor meter based on Freescale KM34 microprocessor is presented. Four channels real-time acquisition of optical power are implemented by using 24 bit Σ-Δ ADC which is integrated on KM34 and the external circuit. Ethernet communications are implemented by using W5100 net chip which is connected with KM34 by the SPI interface. The hardware structure of the main module, the optical power acquisition of software processes, data format of remote interactive command and ethernet communication interface processes based on the UDP are gived in this paper.