【正文】 ................................... 35 Report Menu ....................................................................................................................................... 36 Interactive Menu.................................................................................................................................. 36 PLACE MODE MENU COMMANDS ................................................................................................. 52 File Menu............................................................................................................................................. 52 Edit Menu ........................................................................................................................................... 53 View Menu .......................................................................................................................................... 53 Select Menu......................................................................................................................................... 53 Define Menu ....................................................................................................................................... 55 Rules Menu ......................................................................................................................................... 56 Candence 自動布線器手冊 Autoplace Menu .................................................................................................................................. 57 Report Menu ....................................................................................................................................... 58 Interactive Place Menu........................................................................................................................ 58 第四章參數定義及 PCB ROUTER 與 PCB EDITOR 的關系 ................................ 66 PCB ROUTER 中的參數定義 ............................................................................................................. 66 PCB EDITOR和 PCB ROUTER的相互關系 .................................................................................... 68 PCB EDITOR到 PCB ROUTER的映射 ............................................................................................ 69 PCB ROUTER的規(guī)則說明 ................................................................................................ 77 第五章布線前期準備和扇出 ............................................................................... 79 ................................................................................................................................................. 79 布局優(yōu)化 ............................................................................................................................................ 79 自動布線密度評估 ............................................................................................................................ 79 關鍵信號手工布線 ............................................................................................................................ 81 扇出 (FANOUT) ..................................................................................................................................... 82 概述 ...................................................................................................................................................... 82 缺省的扇出操作 ................................................................................................................................ 83 扇出命令語法和窗口詳細介紹 ........................................................................................................ 83 影響扇出結果的一些因素 ................................................................................................................ 86 電源網絡扇出規(guī)則 ....................................................................................................................... 87 控制最小扇出距離 ....................................................................................................................... 88 控制管腳扇出的方向 ................................................................................................................. 88 電源和地網絡的扇出 ................................................................................................................. 89 其他信號的扇出 .............................................................................................................................. 89 查看和報告 ........................................................................................................................................ 91 扇出實例 ........................................................................................................................................ 91 附錄： do文件 .................................................................................................................................... 93 第六章測試布線 ..................................................................................................... 96 ............................................................................................................................... 96 ................................................................................................................................... 96 Candence 自動布線器手冊 ................................................................................................................................... 99 ............................................................................................................................. 101 ......................................................................................................................... 103 DO文件的基本步驟： ......................................................