摘要
PXIe作为PCIe专业测量领域的扩展,在高速数据采集与存储领域应用相当广泛。结合自行开发的高速PXIe采集卡,详细介绍了基于WDF模型且具有DMA传输功能的PXIe驱动程序设计方法,并分析了驱动程序对采集系统中采集存储速率的影响。在驱动程序的开发中,结合多处理器计算机的结构优势,设计了支持多线程应用程序编程接口,极大提高了采集系统的实时存储速率。
The PXIe industry standard as the extension of PCIe for instrumentation,has quickly gained adoption and grown in prevalence in high-speed data acquisition devices.Based on the image board of PXI express bus,the methods of developing driver with WDF driver model were introduced in detail.Furthermore,it was discussed that the influence on the speed of data＇s transferring was caused by the driver.Aimed at improving the real-time storing rate in multicore processor computer,a scheme of multi-thread application interface was designed.
出处
《微处理机》
2011年第4期86-88,92,共4页
Microprocessors
