讨论基于U S B 接口的高速数据采集卡的设计与实现。详细讲述数据采集卡的硬件部分设计，并简要介绍固件程序、驱动程序和应用软件的设计。-Discussion is based on USB interface, high speed data acquisition card design and implementation. Detailed account of the data acquisition card hardware design, and briefly describes the firmware, drivers and application software design.