This paper proposed a signal collection system of Ground Penetrating Radar based on EZ-USB, including high speed collecting used CPLD, real-time buffering used FIFO memory, and high speed transferring used EZ-USB. Finally the development of the USB device firmware and the client software is done. 建立了基于EZ-USB的探地雷达信号采集系统,该系统采用了CPLD实现高速采集,FIFO存储器实现缓存,EZ-UsB实现快速传输,最后还完成了USB设备固件和客户软件的开发。
High speed DSP device is used as the core processor of this prototype and FLASH memory is used as the storage device. Video data will be compressed using motion picture compression technology before they are stored. 该系统由以高速DSP为核心处理器,采用电擦写非易失性存储器(FlashMemory)为记录体,使用先进的运动图像压缩技术完成视频数据的记录工作。
Then the author has also accomplished the high speed data acquisition of ignition voltage and ignition current by adopting the high speed analog to digital conversion device and the first in and first out memory device ( FIFO). 采用高速A/D转换器和先进先出存储器(FIFO),有效地实现了高速数据采集,实现了对点火电压、点火电流的采集。
With the development of electronic product, people wish to pursue super portable, low power consumption, high writing/ reading speed and high density memory device. 随着电子产品的发展,人们对于超便携,超低功耗以及高密度快速存储设备的需求日益紧迫。