基于VIRTEX架构的FPGA布线资源测试技术

摘要

The number of transistors in programmable routing resources inside FPGA shares the most of all modules and the failure rate is the highest, so the test of routing resources is an important area of research and a difculty in FPGA testing. The paper studies on six long, long, single long line testing of FPGA routing resources technology based on VIRTEX architecture, using the combination of general methods for testing. The realization of routing resources to test faulty coverage is high, and the fault location is accurate, test procedures can be high readability and reusability.%FPGA内部可编程布线资源所占的晶体管数量是所有模块中最多的，其故障发生率也最高，因此布线资源的测试是一个重要的研究领域，也是FPGA测试中的一个难点。通过对基于VIRTEX 架构的FPGA布线资源的六长线、长线、单长线的测试技术研究，采用通用方法的组合进行测试，测试程序可读性好、可复用性高，实现了对布线资源测试故障覆盖率高、故障定位准确。