31[设计]陈功-循环彩灯.doc

电工电子实验报告 学生姓名：陈功 学生学号系别班级：物理系0503班 课程名称：现代电子技术实验（EDA） 报告性质：设计报告 实验地点：现代电子技术实验室 开课学期：20071 成绩评定：A 教师签名：田开坤 循环彩灯控制电路 一、实验目的 1. 掌握用AHDL语言设计时序电路的设计方法； 2. 掌握分频器、 寄存器及显示电路接口的设计方法。 3. 加强如何分析，设计一个新实验的技能。 二、实验原理分析 1、实验电路图 2、代码 subdesign yima ( clk1,clk2,reset : input; sel[2..0],a,b,c,d,e,f,g : output; ) Variable ss[3..0] : dff; num[2..0] : dff; begin ss[].clk=clk1; ss[].clrn=reset; num[].clk=clk2; num[].clrn=reset; num[].d=num[].q+1; if ss[]h9 then ss[].d=ss[].q+1; elsif ss[]=h9 then ss[]=h0; end if; if ss[]==h0 then table num[2..0] = a,b,c,d,e,f,g; h7 = 0,0,0,0,0,1,0; h6 = 0,0,0,0,0,0,0; h5 = 0,0,0,0,0,0,0; h4 = 0,0,0,0,0,0,0; h3 = 0,0,0,0,0,0,0; h2 = 0,0,0,0,0,0,0; h1 = 0,0,0,0,0,0,0; h0 = 0,0,1,0,0,0,0; end table; elsif ss[]==h1 then table num[2..0] = a,b,c,d,e,f,g; h7 = 1,0,0,0,0,0,0; h6 = 0,0,0,0,0,0,0; h5 = 0,0,0,0,0,0,0; h4 = 0,0,0,0,0,0,0; h3 = 0,0,0,0,0,0,0; h2 = 0,0,0,0,0,0,0; h1 = 0,0,0,0,0,0,0; h0 = 0,0,0,1,0,0,0; end table; elsif ss[]==h2 then table num[2..0] = a,b,c,d,e,f,g; h7 = 0,0,0,0,0,0,0; h6 = 1,0,0,0,0,0,0; h5 = 0,0,0,0,0,0,0; h4 = 0,0,0,0,0,0,0; h3 = 0,0,0,0,0,0,0; h2 = 0,0,0,0,0,0,0; h1 = 0,0,0,1,0,0,0; h0 = 0,0,0,0,0,0,0; end table; elsif ss[]==h3 then table num[2..0] = a,b,c,d,e,f,g; h7 = 0,0,0,0,0,0,0; h6 = 0,0,0,0,0,0,0; h5 = 1,0,0,0,0,0,0; h4 = 0,0,0,0,0,0,0; h3 = 0,0,0,0,0,0,0; h2 = 0,0,0,1,0,0,0; h1 = 0,0,0,0,0,0,0; h0 = 0,0,0,0,0,0,0; end table; elsif ss[]==h4 then table num[2..0] = a,b,c,d,e,f,g; h7 =