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针对如何使用JTAG接口对ARM7TDMI处理器进行调试,介绍了JTAG边界扫描结构及基本协议标准、ICE-breaker模块等与调试接口相关的内容,给出了两个运用JTAG接口对ARM7TDMI进行调试的实例加以验证。在由计算机、WIGGLER JTAG和SmartArm2200组成的实际调试系统中,成功读取了ARM7TDMI处理器的ID,实现了程序的下载和调试。实验结果表明,通过简单的JTAG接口可以实现对基于ARM7TDMI处理器的嵌入式系统的调试。
In order to debug the ARM7TDMI processor by using the JTAG interface, this paper introduces the JTAG boundary scan architecture and basic protocol standards, ICE-breaker module and other related to the debug interface, and gives two examples of using JTAG interface to debug ARM7TDMI verification. In the actual debugging system composed of computer, WIGGLER JTAG and SmartArm2200, the ID of the ARM7TDMI processor was successfully read and the program was downloaded and debugged. The experimental results show that through a simple JTAG interface ARM7TDMI processor-based embedded system debugging.