Research on IEEE Std1500 Wrapper Design for Digit IP Core

Because of the diversity of IP-core testability structure, the test of SoC is becoming more and more difficult.Aiming at this, a standardized structure is proposed by IEEE Std1500, how to realize this structure becomes a research of interest.Based on IEEE Std1500 and boundary-scan, taking user-designed IP core for example, one design method of the structure is discussed;By using quartus ii, multi-instruction simulation of structure is done, and the design's validity is proved.Through the design of WPP, a novel method to accomplish parallel test of IP-core is put forward.