随着SOC系统的快速发展,如何对其进行有效的测试与诊断是当前研究的热点问题。从SOC数字电路可测试性设计的角度出发,基于边界扫描技术,设计了具有边界扫描结构的IP核,并对相应的测试方法进行了研究。通过仿真及时序分析,验证了该设计方法的可行性,为SOC系统的测试提供了新的思路。 With the rapid development of SOC system, how to effectively test and diagnose it is a hot issue in current research. From the point of view of the testability design of SOC digital circuit, based on the boundary scan technique, the IP core with the boundary scan structure is designed and the corresponding test methods are studied. Through the simulation and timing analysis, the feasibility of this design method is verified, which provides a new idea for the test of SOC system.