Wavedrom

声明：本文转载https://wavedrom.com/tutorial.html

简介

WaveDrom是一款Javascript应用程序，它可以用来描述数字时序图，通过自己编写描述的语言实时生成时序图。

第1步：信号含义

• {signal:
• [
• { name: "Alfa", wave: "01.0.z1z0.x.=0hlHLud.23456789x" },
• ]}

       

第2步：时钟

• 时钟的表示答题可以分为边沿有箭头和无箭头两种。

• {signal:[
• { name: "pclk", wave: "p......." },
• { name: "nclk", wave: "n......." },
• { name: "Pclk", wave: "P......." },
• { name: "Nclk", wave: "N......." },
• {},
• { name: "clk0", wave: "phnlPHNL" },
• { name: "clk1", wave: "xhlhLHl." },
• { name: "clk2", wave: "hpHplnLn" },
• { name: "clk3", wave: "xlh.L.Hx" }
• ]}

         

第3步：给数据添加内容

• {signal:[
• { name: "clk", wave: "P......" },
• { name: "bus", wave: "x.==.=x", data: "head body tail" },
• { name: "wire", wave: "0.1..0." }
• ]}

         

第4步：添加省略

• {signal:[
• { name: "clk", wave: "p.....|..." },
• { name: "Data", wave: "x.345x|=.x", data: "head body tail data" },
• { name: "Request", wave: "0.1..0|1.0" },
• {},
• { name: "Acknowledge",wave: "1.....|01." }
• ]}

      

第5步：组（标记所属关系）

• {signal:[
• { name: "clk", wave: "p..Pp..P" },
• ["Master",
• ["ctrl",
• { name: "write", wave: "01.0...." },
• { name: "read", wave: "0...1..0" },],
• { name: "addr", wave: "x3.x4..x", data: "A1 A2"},
• { name: "wdata", wave: "x3.x....", data: "D1" }
• ],
• {},
• ["Slave",
• ["ctrl",
• { name: "ack", wave: "x01x0.1x" },
• ],
• { name: "rdata", wave: "x.....4x" },
• ]
• ]}

        

第6步： 周期和相位

• phase为正：左移，phase为负：右移；周期默认为1，也可以为2......
• {signal:[
• { name: "Ck", wave: "p.......", period: 2 },
• { name: "CMD", wave: "x.3x=x4x=x=x=x=x", data: "RAS NOP CAS NOP NOP NOP NOP", phase: 0.5 },
• { name: "ADDR", wave: "x.=xxx=xxxxxxxxx", data: "ROW COL", phase: 0.5 },
• { name: "DQS", wave: "z.......0.1010z." },
• { name: "DQ", wave: "z.........5555z.", data: "D0 D1 D2 D3" }
• ]}

       

第7步：控制时序图的缩放

• config：{ hscale: 1 }，参数值也可为2，3，4........
• {signal:[
• { name: "Ck", wave: "p.......", period: 2 },
• { name: "CMD", wave: "x.3x=x4x=x=x=x=x", data: "RAS NOP CAS NOP NOP NOP NOP", phase: 0.5 },
• { name: "ADDR", wave: "x.=xxx=xxxxxxxxx", data: "ROW COL", phase: 0.5 },
• { name: "DQS", wave: "z.......0.1010z." },
• { name: "DQ", wave: "z.........5555z.", data: "D0 D1 D2 D3" }
• ],
• config: { hscale: 2 }
• }

      

第8步：配置title、名称和波形计数

• {signal:[
• { name: "clk", wave: "p...." },
• { name: "Data", wave: "x345x", data: "D0 D1 D2" },
• { name: "Request", wave: "01..0" }
• ],
• head:{
• text: "WaveDrom example",
• tick: 2,
• },
• foot:{
• text: "Figure",
• tock: 9,
• }
• }

第10步：改变title、图注字体大小

• tspan命令

• {signal:[
• { name: "clk", wave: "p...." },
• { name: "Data", wave: "x345x", data: "D0 D1 D2" },
• { name: "Request", wave: "01..0" }
• ],
• head: {text:
• ["tspan",
• ["tspan", {class: "WaveDrom h4" }, "WaveDrom"],
• ],
• tick:0
• },
• foot: {text:
• ["tspan",
• ["tspan", {class: "Figure h5" }, "Figure"],
• ],
• tock:9,
• }
• }
• 一般来说：这个功能主要使用的是改变字体的大小之类的。

            

第11步：箭头的使用

• edge命令
• {signal:[
• { name: 'A', wave: '01........0....', node: '.a........j' },
• { name: 'B', wave: '0.1.......0.1..', node: '..b.......i' },
• { name: 'C', wave: '0..1....0...1..', node: '...c....h..' },
• { name: 'D', wave: '0...1..0.....1.', node: '....d..g...' },
• { name: 'E', wave: '0....10.......1', node: '.....ef....' }
• ],
• edge: [
• "a~>b t1", "c-~>a t2", "c-~>d time3", "d~->e", "e->f", "f~>g", "g-~>j"
• ]
• }