面向DSP的嵌入式远程调试环境设计

摘要

Due to the shortcomings exist in software development environment for DSP,a solution to build remote debugging environment on GDB is proposed. After describing the GDB remote debugging principles,the design of debug server is discussed in detail which is key technology of remote debugging environment. The solution is implemented on TMS320C674x DSP target platform,and the implement method of debug server for variable-width instructions and VLIW architecture is described. Experimental results show that the embedded remote debugging environment for DSP built on GDB is able to meet the needs of DSP application software debugging.%针对目前DSP软件开发环境存在的不足，提出了基于GDB构建远程调试环境的方案。介绍了GDB远程调试原理，详细讨论了远程调试环境设计中关键技术———调试服务器的设计。以TMS320C674x DSP为目标平台，对方案予以实现，针对C674x DSP特有的可变长指令和超长指令字架构，描述了调试服务器相应的实现方法。实验结果表明，基于GDB构建的面向DSP的嵌入式远程调试环境能够满足DSP应用软件调试的需要。