通用型数据记录装置等效测试卡设计

Design of Equivalent Test Card for General Purpose Data Recording Device

针对传统等效器无法等效存储器数据接口种类繁多,传输速率及传输帧格式有所差异等问题,研制了一种通用型存储器等效测试卡。将Hotlink接口、RS-485/RS-422接口和LVDS长线接口等使用频率相对较高的接口集成到一张测试卡上。上位机软件可以通过PXI接口对等效测试卡的各项参数进行配置如传输接口、传输速率及帧格式等。此外,还能对测试卡记录的数据进行事后读取并分析。该设计将传统的存储器转变成等效测试卡的形式,相对较大的提升了等效器的实用性。通过大量试验证明,该测试卡在不同配置方案下均能有效的实现存储器地等效功能。

A common type of memory equivalent test card has been developed for the traditional equivalents of the equivalent memory data interface,the transmission rate and the transmission frame format.The Hotlink interface,RS-485/RS-422 interface and LVDS long-term interface.Those interfaces are used frequently relatively high,are integrated into a single test card.PC software can be configured through the PXI interface equivalent parameters of the test card configuration such as transmission interface,transmission rate and frame format.In addition,the data recorded on the test card can be read and analyzed later.The design of the traditional memory into an equivalent test card in the form of a relatively large increase in the practicality of the equivalent.Through a large number of experiments show that the test card in a different configuration program can effectively achieve the equivalent function of the memory.