文章介绍了基于片上网络对系统芯片进行测试的原理和实例,这是一种新的设计方法。首先讨论了未来系统芯片存在的各方面测试挑战,并提出了基于片上网络结构的解决方案。其次,在OSI网络堆栈参考模型的基础上,提出了面向测试的片上网络协议堆栈以及对应的测试服务。最后,介绍了基于片上网络的模块化测试方法。 The article introduces the principle and example of testing the system chip based on the on-chip network, which is a new design method. First of all, it discusses the various testing challenges in the future of system-on-chip and proposes a solution based on the on-chip network structure. Secondly, based on the OSI network stack reference model, a test-oriented on-chip network protocol stack and corresponding test service are proposed. Finally, the modular test method based on on-chip network is introduced.