一种嵌入式微处理器中的在线调试模块设计

文章提出了一种嵌入式微处理器的在线调试模块。这个模块可以用较少的硬件开支实现一些强大的调试功能:响应硬件和软件触发,提供开始/停止调试模试;单步调试操作;程序执行的跟踪;代码内存、外部数据存储器、SFR、内部数据存储器的读和写。文章首先介绍了嵌入式微处理器可调试模块设计的原理,其次介绍了在线调试的结构设计,最后给出结论和分析。

An On-chip Debug Mode for Embedded Microprocessors

The paper presents an on- chip debug mode for embedded microprocessors. With little hardware overhead, the debug mode can give some powerful debug functions. For example, providing start/stop program execution in response to both hardware and soft- ware triggers, single step operation , program execution tracing, code memory read or write, external data memory read or write, SFR read or write, internal data memory read or write. Firstly , the paper introduces the theory of the debug mode,then it introduces the structure of the mode, and finally gives the conclusion and practical analysis.