基于USB的边界扫描控制器的研究与实现-测试计量技术及仪器专业论文.docx

目 录 摘 要 ......................................................................................................................................I Abstract..................................................................................................................................II 目 录 ................................................................................................................................... III 第一章 引言 ......................................................................................................................... 1 §1.1 论文研究背景和意义 ........................................................................................... 1 §1.2 国内外研究发展现状 ........................................................................................... 1 §1.2.1 边界扫描测试标准的发展历程 ................................................................. 1 §1.2.2 边界扫描技术的研究应用现状 ................................................................. 2 §1.3 课题主要研究内容 ............................................................................................... 3 §1.4 本文结构安排 ....................................................................................................... 4 第二章 边界扫描技术 ......................................................................................................... 5 §2.1 边界扫描技术基本原理 ....................................................................................... 5 §2.2 边界扫描基本结构 ............................................................................................... 5 §2.2.1 测试存取通道 ............................................................................................. 6 §2.2.2 TAP 控制器 7 §2.2.3 指令寄存器 ................................................................................................. 8 §2.2.4 测试数据寄存器 .......................................................................................... 8 §2.3 IEEE Std1149.1 测试指令 9 §2.4 边界扫描的测试应用 ....................................................................................