基于Jtag及网络通信的测试技术研究

Testing technology research on Jtag and network communications

为使基于Jtag总线的测试技术应用更为广泛,本文介绍了一种Jtag总线与以太网互连的方案设计,通过网络模型的分析,协议转换的实现,论述了Jtag总线与以太网的连接原理,建立了一个基本的实验框架,并使用该技术对单芯片进行了测试验证,实验结果分析表明此系统设计方案具有很强的可行性,该技术是用于测试性设计领域的边界扫描技术的一项扩展应用,实用性很强。

In order to extend the application of the testing technology based on Jtag bus, this paper introduces a project designing with Jtag bus and Ethernet interlinked with each other. By analyzing the network model and the realization of the protocol conversion, this paper discusses the principles of connection between Jtag bus and Ethemet, and also builds a fundamental structure of the experimentation. It is exerted a experimental tested verification to a chip with this technology. The experimental result is analyzed and indicated that the design of this system absolutely has a good feasibility. This technology, with its high practicability, is another extended application of the boundary-scanning technology used in the area of testability.