基于NoC的SoC中实时跟踪数据的传输

Real Time Tracing Data Transmission in NoC-based SoC

片上网络(NoC)技术使片上系统(SoC)的通信机制发生了根本改变,直接影响了SoC中处理器内核的实时跟踪技术。该文以ARMCoresight构架的实时跟踪机制为参考,分析了在NoC环境中实现实时跟踪数据传输的难点,提出相应的解决方案。通过对实验系统的仿真,验证了其中的关键技术。

The NoC techniques changes on-chip communication in a SoC dramatically. As a result, current tracing techniques are not readily applicable to NoC-based systems where the transmission of traced data requires new concerns due to totally different communication mechanism. An in-depth analysis of ARM coresight trace architecture shows new challenges. It analyzes the difficulty of real time data transmission tracking in NoC, and proposes the solution which is verified by experimental simulations.