摘要
介绍一种高速数据采集的方案。设计中使用USB传输,用GPIF实现和外围器件的握手逻辑。完成数据采集和传输的同时,让出CPU的资源供其他应用任务使用,既提高了采集速度,又充分利用了EZ-USB FX2单片机的资源。文章分析并验证了该方案的正确性,并提出一些调试中使用的方法、技巧。
The sampling speed is limited by CPU＇s running speed in usual data acquisition system. A method of high speed sampling is introduced in order to resolve the problem in this paper. USB and GPIF are used for transmission and handshake. The CPU resource is released to other applications as soon as the sampling and transmission are completed. EZ - USB FX2＇s resources are fully used in this method. This method is analyzed and validated. And many debugging skills are described in the paper.
出处
《仪表技术》
2007年第12期23-24,27,共3页
Instrumentation Technology
