基于CPLD技术的数据采集通道轮循的实现

在采集数据时，经常会遇到采集通道数不能满足实际需求的问题.利用CPLD技术，将单片机和CPLD相结合，通过数据采集通道地址的轮循实现了数据采集通道的轮循，从而有效地解决了通道不足的问题，实现了高精度采集卡的新用法，是采集卡瓶颈技术的新突破.结果表明, 该方案设计合理,实现方便，可作为一种通用的解决通道不足问题的方案.

Realization of data acquisition channel circulation based on CPLD technology

It is always confronted that the number of data acquisition channels is insufficiency while data acquiring. Through utilizing the CPLD technology, combining the singlechip with the CPLD and circulating the data acquisition channel, the problem of the insufficient data acquisition channel is effectively solved. Thus, the new application of the high precision acquisition card is realized, and the scientific breakthrough in data acquisition is achieved. The result shows that the design is reasonable and easy to realize, and can be taken as a general solution for the problem of insufficient channels.