EDA綜合實(shí)驗(yàn)-交通燈

學(xué)生實(shí)驗(yàn)報(bào)告系別電子信息學(xué)院課程名稱《EDA綜合實(shí)驗(yàn)》班級(jí)10通信A班實(shí)驗(yàn)名稱交通燈控制器的設(shè)計(jì)姓名張炘實(shí)驗(yàn)時(shí)間2012年11月27日學(xué)號(hào)2010010101073指導(dǎo)教師王紅航報(bào)告內(nèi)容一、實(shí)驗(yàn)?zāi)康暮腿蝿?wù)本次實(shí)驗(yàn)的目的和任務(wù)是：1熟悉QUARTUES軟件的使用及操作頁(yè)面。2.設(shè)計(jì)一個(gè)交通燈控制器。3FPGA芯片的選擇和對(duì)引腳的軟件選擇。4對(duì)實(shí)驗(yàn)箱的簡(jiǎn)單操作。二、實(shí)驗(yàn)原理介紹本次交通燈設(shè)計(jì)功能較簡(jiǎn)單，1.亮紅綠黃燈。2.數(shù)碼管倒計(jì)時(shí)。三、設(shè)計(jì)代碼（或原理圖）、仿真波形及分析moduletraffic_1(clk,rst,a_light,a_su);inputclk,rst;outputreg[2:0]a_light;outputreg[5:0]a_su;reg[2:0]a_red,a_yellow,a_green;reg[5:0]su_red,su_yellow,su_green;reg[3:0]a_num;regtemp;always@(rst)begin if(!rst) begin a_red<=3'b001; a_yellow<=3'b010; a_green<=3'b100; su_red<=6'd32; su_yellow<=6'd5; su_green<=6'd27; endendalways@(posedgeclk)begin if(rst)//gaodianpinyouyong begin if(!temp) begin temp<=1'b1; case(a_num) 0:begina_light<=a_red; a_su<=su_red; a_num<=4'd1; end 1:begina_light<=a_green; a_su<=su_green; a_num<=4'd2; end 2:begina_light<=a_yellow; a_su<=su_yellow; a_num<=4'd0; end endcase end else begin a_su<=a_su-1'b1; if(a_su==6'd2)//chichu6'd2shiyingweijishushi0kaishi temp<=1'd0; end end else begin a_light<=a_red; a_su<=su_red; temp<=1'b0; a_num<=4'd0; endendendmodule以上是一條道路A的紅綠燈的顯示，用case語(yǔ)句實(shí)現(xiàn)紅、黃、綠燈的循環(huán)變換，以temp變量判斷是否變換等色，以下是仿真時(shí)的時(shí)序圖：moduleBCD(timer,timer_1);input[5:0]timer;outputreg[7:0]timer_1;always@(timer)beginif(timer>59)timer_1<=timer+8'b00100100;//加36elseif(timer>49)timer_1<=timer+8'b00011110;//加30elseif(timer>39)timer_1<=timer+8'b00011000;//加24elseif(timer>29)timer_1<=timer+8'b00010010;//加18elseif(timer>19)timer_1<=timer+8'b00001100;//加12elseif(timer>9)timer_1<=timer+8'b00000110;//加6elsetimer_1<=timer;endendmodule我們數(shù)碼管顯示的是BCD碼對(duì)應(yīng)的數(shù)字，所以我們輸出前要把二進(jìn)制變?yōu)锽CD碼形式，其仿真時(shí)序圖如下：moduletraffic_3(clk,rst,b_light,b_su);inputclk,rst;outputreg[2:0]b_light;outputreg[5:0]b_su;reg[2:0]b_red,b_yellow,b_green;reg[5:0]su_red,su_yellow,su_green;reg[3:0]b_num;regtemp;always@(rst)begin if(!rst) begin b_red<=3'b001; b_yellow<=3'b010; b_green<=3'b100; su_red<=6'd32; su_yellow<=6'd5; su_green<=6'd27; endendalways@(posedgeclk)begin if(rst)//gaodianpinyouyong begin if(!temp) begin temp<=1'b1; case(b_num) 0:beginb_light<=b_green; b_su<=su_green; b_num<=4'd1; end 1:beginb_light<=b_red; b_su<=su_red; b_num<=4'd2; end 2:beginb_light<=b_yellow; b_su<=su_yellow; b_num<=4'd0; end endcase end else begin b_su<=b_su-1'b1; if(b_su==6'd2)//chichu6'd2shiyingweijishushi0kaishi temp<=1'd0; end end else begin b_light<=b_red; b_su<=su_red; temp<=1'b0; b_num<=4'd0; endendendmodule以上是另外一條道路B的紅綠燈變換程序，其亮燈時(shí)序與A的亮燈相反，同時(shí)也是需要BCD轉(zhuǎn)換與上面BCD轉(zhuǎn)換一樣；以下是整個(gè)交通燈變換的原理圖：四、實(shí)驗(yàn)結(jié)論與心得本次實(shí)驗(yàn)充分了解了簡(jiǎn)單交通燈的基本設(shè)計(jì)概念，對(duì)軟件、語(yǔ)言的使用更加熟悉，但對(duì)狀態(tài)機(jī)設(shè)計(jì)還有待學(xué)習(xí)。五、實(shí)