从面向应用的角度出发,针对FPGA内部互连资源提出一种新的故障检测方法。该检测方法先测试原设计故障的连接,再通过向FPGA下载新的配置程序定位故障。除借鉴以往故障检测方法的四种配置模型外,又提出了四种新的配置用来区分同一连接点内部多个开关故障及SM(Sw itch M atrix)间的多个连接故障。所提出的检测方法不仅减少检测时间,还提高了故障定位的准确度和故障覆盖率。 From the point of view of application, a new fault detection method is proposed for the interconnection resources in FPGA. This test method first tests the connection of the original design fault and then locates the fault by downloading a new configuration program to the FPGA. In addition to the four configuration models of past fault detection methods, four new configurations are proposed to distinguish multiple switch faults and multiple connections between SMs within the same connection point. The proposed detection method not only reduces the detection time, but also improves the accuracy of fault location and fault coverage.