摘要:在兼容维修早期生产的一款基于PC/104总线的近红外光谱仪,在设计新的工控板时,增加了PCI Express总线转PC/104总线的设计。重点介绍了架构设计、PEX8311桥接芯片的直从工作模式和FPGA的控制时序,当PEX8311本地时钟频率为16.5 MHz时,测试的实际传输速率达到6.5 MB/s,能够满足仪器的需求。
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