The combined scanning circuit and its characteristics 組合掃描電路及其性能
Continuous scanning circuit 連續(xù)掃描電路
This paper sums up some new points about the scanning circuit , like the compensating state and jumping in the cluster of non - linearity coefficient 摘要本文綜述了補償狀態(tài)和非線系數(shù)曲線中的跳變等有關掃描電路的新論要點。
There are a lot of methods available to create test vector . the thesis addresses their characteristics of the methods and special structure of boundary scan circuit respectively and come to a conclusion of pseudo - exchausive testing the most rational method applied to this situation 測試矢量的生成方法很多,本文在研究了各種方法的特性,以及邊界掃描電路的特殊結(jié)構(gòu)后,采用了偽窮舉法生成測試矢量。
This thesis discusses the realization of pcbs ict production through a concrete example in which boundary scan technology is applied , and presents a new method to improve the test speed , based on the analysis of boundary scan circuit and means for vector creation . he applys boundary scan ( bs ) to boundary - scan device on the board where bs features by easy vector creation , need less knowledge of the device 本文結(jié)合一個具體電路板在線測試實現(xiàn),首先討論了在ict中,采用邊界掃描元件測試技術(shù)實現(xiàn)在線測試生產(chǎn);并在分析歸納各種測試方法的基礎上探索一種新的改進方法,即將deltascan技術(shù)與邊界掃描技術(shù)相結(jié)合以減少測試矢量,增加測試速度的一種實用方法。