基于PCI Express总线宽带测向系统的驱动程序设计

摘要

Specific to wide-band direction finding system based on PCI Express bus,designed a driver programming which for PCI Express interface chip PEX8114 and studied applied in Windows XP operate system,and emphasized the key step of highspeed data transmission called DMA Interrupt.Verified by practice, the steady data transfer rate of the wide-band direction finding system can be up to higher than 160 MBps.Moreover,this driver programming can be transplanted to other high speed data transmission system.%针对基于PCI Express总线的宽带测向系统,以PEX8114接口芯片为例设计了Windows XP系统下的WDM驱动程序,重点阐述了高速数据传输的关键--DMA中断传输.通过实践验证,宽带测向系统稳定的数据传输速率超过160 MBps,此驱动程序可以方便地移植到其他高速数据传输系统中.