In this paper, a design of PCI Express interface card based on Nios H is presented. The composition theory of Nios Q soft - core processor and the process of LVDS signal processing and application PCIE bus communication arc introduced. Each functional module and the specific of the design principium are given a detailed discussion. Functional realization of the system was tested one by one. The test results show that the stable interface card can complete the data transfer effectively.%根据NiosⅡ软核处理器的组成原理,提出了一种基于 NiosⅡ的PCI- Express(简称PCIE)接口卡的设计方法,研究了系统对LVDS信号的处理和应用PCIE总线接口通信的过程；详细讨论了系统各功能模块的实现原理,并对各模块进行了实际的分析和测试,测试结果表明该接口卡性能稳定,可以有效地完成数据传输.
展开▼
