摘要
Abstract
Aiming at more and more application requirements on multi-channel data acquisition in engineering project,a data ac-quisition platform based on CPCI bus is designed,which can acquire 32-channel analog signals with four eight-channel data acquisition cards.This paper mainly introduces the design of four eight-channel data acquisition card,which can solve the problems on data trans-mission and control logic with multi-cards,and also discusses chip selection,card drive,software design,timing sequence logic about FPGA,acquisition data verifying and expansibility of platform.The comprehensive test results and the application in engineering project show that the platform can acquire 32-channel analog signals and meet engineering technology requirements.关键词
CPCI总线/分时复用/多卡/多路采集/数据校验Key words
CPCI bus/time division multiplexing/multi-cards/multi-channel data acquisition/data check分类
信息技术与安全科学
