基于PCIE总线的雷达数据记录器驱动程序开发

Driver Development of Radar-Data-Recorder based on PCI Express

PCI Express是一种更高性能的第三代I/O总线。相对于传统的PCI总线,它具有高速、低引脚数、点对点传输的特点,使得该总线非常适合应用于高速数据采集系统。对于记录高速的合成孔径雷达原始数据,正适合用基于PCI Express总线的采集卡实现。针对Windows XP操作系统,利用驱动程序开发工具DDK,开发了PCI Express总线接口芯片PEX8311的WDM驱动程序并成功的应用于某雷达原始数据记录器中,可以通过驱动程序以DMA块传输方式从本地总线读取雷达数据,稳定的数据记录速度可达100MB/s以上。

PCI Express is a higher performance third-generation I/O bus, compare to PCI bus, it is higher speed, fewer pins, point-to-point interconnect, so the PCI Express is fit for using in acquiring high speed data. This paper introduced driver development of PEX8311 which is a PCI Express I/O accelerator by DDK, and the driver was used in a radar-data-recorder successfully, we can use this driver to read radar-data from local bus by the method of block DMA and the speed of recording can reach to 100MB/s.