摘要
针对电子系统中存储器的静态非链接故障,提出一种基于字的行进测试方法,用于检测所有的SAF、TF、AF、SOF、CFin、CFid、CFst故障。解析分析表明,该方法不仅能够检测出March-CW遗漏的<;>故障,而且在相同故障检测能力下,其运算量降为(11N+5v)/u+2N,优于M111的11N和March-17N的17N/u+10N(其中,N是存储器的字数,每个字为u比特,u=2v)。将该方法应用于某高端导航接收机DSP外设存储器故障实时检测,可以在数秒内完成兆字节容量的存储器测试。
A word-oriented march test algorithm is proposed to diagnose all the static unlinked memory faults in electric system, including SAF.TF,AF.SOF,CFin,CFid and CFst. Analysis proves that the proposed algorithm not only detects the 〈 ↑↓;←→〉 11 fault which cannot be detected by March-CW, but also has much less calculus complexity （（11N＋5v）/u＋2N） compared with M1^11 （11N） and March-17N（17N/u＋10N）, where N represents the address number, u is the data width, and u=2^v. The proposed algorithm can complete mega-byte memory test in seconds, which improves the real-time performance when applied to the DSP peripheral memory diagnosis of the high quality navigation receiver in real-time.
出处
《电子技术应用》
北大核心
2009年第1期30-33,共4页
Application of Electronic Technique
