超标量DSP的片上调试与实时跟踪支持  

On-chip debug and real-time trace support for superscalar DSP

作　　者：王刚[1] 张盛兵[1] 黄嵩人[2] 

机构地区：[1]西北工业大学计算机学院,西安710072 [2]中国电子科技集团公司第五十八研究所,江苏无锡214035

出　　处：《计算机应用研究》2012年第1期207-210,共4页Application Research of Computers

基　　金："核高基"重大专项基金资助项目(2009ZX01034-001-002-003)

摘　　要：针对嵌入式系统日益严峻的调试挑战,提出并实现了一种基于32 bit超标量DSP内核的片上调试与实时跟踪架构。该架构通过设计专用的跟踪接口与其他硬件资源,并扩展JTAG端口、存储器保护逻辑与流水线控制逻辑,以较低的硬件开销实现对内核的实时运行控制、内部寄存器与存储器的非侵入访问、带复杂触发条件的断点与观察点设置、硬件单步以及程序流的实时跟踪等典型特征的支持,可满足绝大部分嵌入式系统的开发与调试需求。For the growing debug challenges of embedded systems,this paper presented and implemented an on-chip debug and real-time trace architecture for 32 bit superscalar DSP core.Due to the dedicated trace interface and other hardware resources,the expanded JTAG port,memory protection logic and pipeline control logic,this architecture could support the following typical debug features with low hardware efforts： real-time run control,non-incursive access of internal registers and local memories,complex hardware breakpoints and watchpoints,hardware single-stepping,and real-time program trace.Consequently,this on-chip debug and real-time trace architecture can meet the development and debugging need for most embedded systems.

关 键 词：超标量数字信号处理器 片上调试 实时程序跟踪 运行控制 单步调试 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]