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基于一种适合于测试静态简化故障的MarchSS算法,提出了一种改进的嵌入式随机存取存储器测试算法-MarchSSE算法。该算法在测试长度不变的情况下,不仅能测出MarchSS算法所测试的全部的功能故障,而且还能检测出MarchSS算法所遗漏的固定开路故障,以及大部分的动态故障,故障覆盖率得到了大幅度地提高。
Based on MarchSS algorithm, which is suitable for testing static simplified fault, an improved embedded random access memory test algorithm -MarchSSE algorithm is proposed. When the test length is constant, the algorithm can not only detect all the functional faults tested by the MarchSS algorithm, but also detect the fixed open faults and the majority of dynamic faults missed by the MarchSS algorithm. The fault coverage is obtained A substantial increase.