摘要
基于远程数据采集的特殊要求,远程端使用DSP TMS320F240控制AD转换器AD7492进行数据采集,控制网络芯片数据传输,本地端使用USB2.0接口芯片(Cy7c68013)作为数据传输的核心,用它控制网络芯片,采用GPIF(通用可编程接口)异步读写Auto-In/Out(自动打包),块传输方式通过网络芯片对数据进行编/解码,采样频率达100 KSPS。
Based on the special requirement for remote data acquisition, we use TMS320F240 in the remote end to control the AD converter, AD7492, for data acquisition and network chip data transmission control. USB2.0 interface chip (Cy7c68013) is used in the local end, which is the center for data transmission. It is used for controlling the network chip. General programmable interface(GPIF) is used for read/write Auto - In/Out asynchronously. The bulk transmission mode is used for data packet coding/decoding through the network chip. Experiment result shows that the sampling frequency is up to 100KSPS.
出处
《电光与控制》
北大核心
2006年第4期78-80,96,共4页
Electronics Optics & Control
基金
吉林省科技厅自然料学基金资助(20030535)
中科院二期创新项目基金资助(C04708Z)
关键词
通用串行总线
通用可编程接口
以太网
固件
universal serial bus(USB)
general programmable interface(GPIF)
Ethemet
firmware