摘 要: 在JTA G ( jo int test act ion group )工业标准的基础上, 采用了一种基于语音识别SoC (System on Ch ip)调试的JTA G 接口设计. 该设计以求用最少的硬件开销, 最简单灵活的方式, 支持寄存器查看和设置、 IP 核程序流跟踪、代码覆盖率检查、代码分析、 IP 核扫描测试等功能. 该设计已经应用于以OpenR ISC 为核心 的语音识别SoC 设计平台上.
JTAG 标准协议 Circuitry that may be built into an integrated circuit to assist in the test, maintenance and support of assembled printed circuit boards and the test of internal circuits is defined. The circuitry includes a standard interface through whi