The implementation of the global scheduling strategy

Today the research on design for testability is becoming the research priority in the filed of SoC. However, the traditional research is limited in top level of SoC and it ignores the inference resulting from the scheduling strategy in IP-core level. In addition, the work on stage of SoC overly focuses on researching the minimum testing time of different WSC. It ignores the relationship between the WSC and testing time. So the traditional research doesn´t play a significant role in design of SoC. In order to achieve the full use of testing resources, a bottom-up global scheduling strategy based on WSC balancing scan chain is proposed in this paper. In this paper, we verify the algorithm and reusability of this strategy upon the ITC´02 benchmark.