嵌入式处理器中跟踪缓冲的设计考虑

Design for Trace Buffer in Embedded System

跟踪缓冲可以记录程序执行的历史轨迹,这在各种在线仿真器(ICE)和逻辑分析仪中得到了广泛的应用.文章主要讲述了嵌入式系统中的跟踪缓冲的设计思想,并介绍了嵌入式系统领域中的不同架构处理器中跟踪缓冲的设计方法,对它们所表现的性能差异也进行了简单的评估.

Trace Buffer was widely applied in recording the historical track in the period of the programs' execution. And this convenience is used in many kinds of In-circuit Emulators and Oscilloscopes. This Paper mainly describes the design idea of trace buffer in embedded system and focuses on the idea of those trace buffers which are integrated in different Embedded Architectures. Finally, an evaluation on them in performance is given.