摘要
一种基于P87LPC764和Pt100的多通道温度循环监测,功耗低且稳定性高。采用了串行A/D转换器件TLV2543、I2C总线时钟芯片PCF8563和串行E2PROM芯片CSI24WC256,将所测温度数据根据时间存储,通过串行口与PC机配合,可实现温度曲线恢复;实现了供电方式的热切换,报警等诸多功能。
A multichannel inst rument on temperature supervising and measuring isbased on P87LPC764and Pt100,w hich haslow consumption and high stability.We use TLV2543(a serial A/D converte r),PCF8563(a clock chip)and CSI24WC256(a serial E 2 PROM)with I 2 C busin the system.The measuring data isstored according the real time,so the temperature curve can be furbished acrossthe serial port of the PC.Many oth er functionsare realized such aspower supplies' hot switching aswell asalar ming,etc.
出处
《微计算机信息》
2003年第11期61-63,共3页
Control & Automation
