基于MAX Ⅱ的多通道同步数据采集系统

介绍了以CPLD为核心的GPS同步,大容量数据采集系统。该系统完全使用硬件来完成数据采集的时序控制,使用一片AD7663可以实现以每通道10K/S的采样速率完成16通道模拟信号采集,32路开关量的采集,并且可以根据需要,灵活扩展采集通道数。另外采集的数据被打上时间标签,所有的数据和时间标签组成数据帧.,直接写入双口RAM。文章最后给出了主蔓控制信号的QuartusⅡ的时序仿真。

A multi-channel synchronized data acquisition system based on MAXⅡ

This paper introduces a GPS synchronous, big capacity data acquisition system based on CPLD.CPLD independently uses hardware to consummate the collection of cycle time data control. It can sample sixteen channels analogical signal at 10ks/s per channel with only one AD7663, and collect thirty-two channels digital signal at same speed. Channels can be expanded at will if need. In addition, collected data were marked with the last time label, all collected data and time stamp are framed a package and written to DPRAM directly. At last, the paper offers timing simulator of key signals with Quartus II.