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介绍了一种基于PCI总线的数字下变频采集卡的硬件结构;简要描述了PLX的PCI接口芯片PCI9054;阐述了在DriverStudio环境下进行PCI设备WDM驱动程序开发的基本方法;并对驱动程序中直接内存访问(DMA)传输做了详细的论述。
The hardware structure of a digital down-conversion acquisition card based on PCI bus is introduced. The PCI interface chip PCI9054 of PLX is briefly described. The basic method of developing WDM driver for PCI device in DriverStudio environment is described. Memory access (DMA) transmission is discussed in detail.