通用型数据传输等效接口卡设计

针对测试系统等效器数据传输接口种类繁多，传输频率及传输帧格式有所差异等问题，研制了一种通用型数据传输等效接口卡。将Hotlink接口，RS422接口、RS485接口、CAN接口、LVDS+光纤传输接口等使用频率相对较高的接口集成到一张接口卡上。上位机软件可以通过PXI接口配置数据传输接口、传输频率、传输帧格式等参数。该设计将传统的等效器转变成等效接口卡形式，相对较大的提升了等效器的通用性。通过大量试验证明，该接口卡在不同配置方案下等效的数据，可以进行有效的传输。

Design of universal equivalent data transmission interface card

As about the traditional equivalent device have disadvantages of a great variety data transmission interfaces, different transmission frequency and transmission frame format, a data transmission equivalent interface card was proposed, which integrated Hotlink interface, RS422 interface, RS485 interface, CAN interface, LVDS with the light transmission together. The transmission interface, transmission frequency and transmission frame format can be configured through PXI interface in the PC software. The traditional equivalent device was translated into equivalent interface card, increasing the versatility of equivalent device relatively. Through a large number of experiments, the equivalent data transmission interface card be proved that can transmit data correctly in all configuration scheme.