01.zip_数字钟_其他下载-pudn.com

<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/6259b23492dc900e62bf8693/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/6259b23492dc900e62bf8693/bg1.jpg"><div class="c x0 y1 w2 h0"><div class="t m0 x1 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">【例</div><div class="t m0 x2 h3 y3 ff3 fs0 fc0 sc0 ls0 ws0">8.1-1</div><div class="t m0 x3 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">】</div><div class="t m0 x4 h4 y4 ff4 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x5 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">基于</div><div class="t m0 x6 h4 y4 ff4 fs0 fc1 sc0 ls0 ws0">Verilog HDL</div><div class="t m0 x7 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">的简易数字钟设计参考代码</div><div class="t m0 x8 h5 y4 ff5 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x9 h5 y5 ff5 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 xa h6 y6 ff6 fs1 fc0 sc0 ls0 ws0">//数字钟顶层文件 </div><div class="t m0 xa h7 y7 ff6 fs1 fc0 sc0 ls0 ws0">module count_top( </div><div class="t m0 xa h7 y8 ff6 fs1 fc0 sc0 ls0 ws0"> input clk,rst, </div><div class="t m0 xa h7 y9 ff6 fs1 fc0 sc0 ls0 ws0"> output [6:0]seg, </div><div class="t m0 xa h7 ya ff6 fs1 fc0 sc0 ls0 ws0"> output [7:0]an </div><div class="t m0 xa h7 yb ff6 fs1 fc0 sc0 ls0 ws0"> ); </div><div class="t m0 xa h7 yc ff6 fs1 fc0 sc0 ls0 ws0"> wire clk_1s; </div><div class="t m0 xa h6 yd ff6 fs1 fc0 sc0 ls0 ws0"> clk_1s U1(.clk(clk),.rst(rst),.clk_1s(clk_1s)); //产生 1 秒信号 </div><div class="t m0 xa h7 ye ff6 fs1 fc0 sc0 ls0 ws0"> wire cout_s; </div><div class="t m0 xa h7 yf ff6 fs1 fc0 sc0 ls0 ws0"> wire [9:0] bcd_s; </div><div class="t m0 xa h7 y10 ff6 fs1 fc0 sc0 ls0 ws0"> bcd_counter </div><div class="t m0 xa h7 y11 ff6 fs1 fc0 sc0 ls0 ws0">U2_s(.clk(clk),.rst(rst),.cin(clk_1s),.bcd(bcd_s),.cout (cout_s)); </div><div class="t m0 xa h6 y12 ff6 fs1 fc1 sc0 ls0 ws0">//实现秒计数 </div><div class="t m0 xa h7 y13 ff6 fs1 fc0 sc0 ls0 ws0"> wire cout_m; </div><div class="t m0 xa h7 y14 ff6 fs1 fc0 sc0 ls0 ws0"> wire [9:0] bcd_m; </div><div class="t m0 xa h7 y15 ff6 fs1 fc0 sc0 ls0 ws0">bcd_counter U2_m(.clk(clk),.rst(rst),.cin(cout_s),.bcd(bcd_m),.cout </div><div class="t m0 xa h6 y16 ff6 fs1 fc0 sc0 ls0 ws0">(cout_m)); //实现分计数 </div><div class="t m0 xa h7 y17 ff6 fs1 fc0 sc0 ls0 ws0"> wire [9:0] bcd_h; </div><div class="t m0 xa h7 y18 ff6 fs1 fc0 sc0 ls0 ws0">bcd_counter #(.N(24)) </div><div class="t m0 xa h7 y19 ff6 fs1 fc0 sc0 ls0 ws0">U2_h(.clk(clk),.rst(rst),.cin(cout_m),.bcd(bcd_h), </div><div class="t m0 xa h6 y1a ff6 fs1 fc0 sc0 ls0 ws0"> .cout()); //实现时计数 </div><div class="t m0 xa h7 y1b ff6 fs1 fc0 sc0 ls0 ws0">display </div><div class="t m0 xa h7 y1c ff6 fs1 fc0 sc0 ls0 ws0">U3(.clk(clk),.rst(rst),.bcd_s(bcd_s),.bcd_m(bcd_m),.bcd_h(bcd_h), </div><div class="t m0 xa h6 y1d ff6 fs1 fc0 sc0 ls0 ws0">.an(an),.seg(seg)); //数字钟显示 </div><div class="t m0 xa h7 y1e ff6 fs1 fc0 sc0 ls0 ws0">endmodule </div><div class="t m0 xa h6 y1f ff6 fs1 fc0 sc0 ls0 ws0">//产生 1 秒信号 </div><div class="t m0 xa h7 y20 ff6 fs1 fc0 sc0 ls0 ws0">module clk_1s #(parameter N = 99_999999)( </div><div class="t m0 xa h7 y21 ff6 fs1 fc0 sc0 ls0 ws0"> input clk,rst, </div><div class="t m0 xa h7 y22 ff6 fs1 fc0 sc0 ls0 ws0"> output reg clk_1s </div><div class="t m0 xa h7 y23 ff6 fs1 fc0 sc0 ls0 ws0"> ); </div><div class="t m0 xa h7 y24 ff6 fs1 fc0 sc0 ls0 ws0"> reg [31:0]count; </div><div class="t m0 xa h7 y25 ff6 fs1 fc0 sc0 ls0 ws0"> always@(posedge clk,posedge rst)begin </div><div class="t m0 xa h7 y26 ff6 fs1 fc0 sc0 ls0 ws0"> if(rst) </div><div class="t m0 xa h7 y27 ff6 fs1 fc0 sc0 ls0 ws0"> count <= 0; </div><div class="t m0 xa h7 y28 ff6 fs1 fc0 sc0 ls0 ws0"> else begin </div><div class="t m0 xa h7 y29 ff6 fs1 fc0 sc0 ls0 ws0"> clk_1s <= 0; </div><div class="t m0 xa h7 y2a ff6 fs1 fc0 sc0 ls0 ws0"> if(count < N) </div><div class="t m0 xa h7 y2b ff6 fs1 fc0 sc0 ls0 ws0"> count <= count + 1; </div><div class="t m0 xa h7 y2c ff6 fs1 fc0 sc0 ls0 ws0"> else begin </div><div class="t m0 xa h7 y2d ff6 fs1 fc0 sc0 ls0 ws0"> count <= 0; </div><div class="t m0 xa h7 y2e ff6 fs1 fc0 sc0 ls0 ws0"> clk_1s <= 1; </div><div class="t m0 xa h7 y2f ff6 fs1 fc0 sc0 ls0 ws0"> end </div><div class="t m0 xa h7 y30 ff6 fs1 fc0 sc0 ls0 ws0"> end </div><div class="t m0 xa h7 y31 ff6 fs1 fc0 sc0 ls0 ws0"> end </div><div class="t m0 xa h7 y32 ff6 fs1 fc0 sc0 ls0 ws0">endmodule </div><div class="t m0 xa h6 y33 ff6 fs1 fc0 sc0 ls0 ws0">//默认 BCD 码显示的 60 进制计数器 </div><div class="t m0 xa h7 y34 ff6 fs1 fc0 sc0 ls0 ws0">module bcd_counter #(parameter N=60)( </div><div class="t m0 xa h7 y35 ff6 fs1 fc0 sc0 ls0 ws0"> input clk,rst, </div><div class="t m0 xa h7 y36 ff6 fs1 fc0 sc0 ls0 ws0"> input cin, </div><div class="t m0 xa h7 y37 ff6 fs1 fc0 sc0 ls0 ws0"> output [9:0]bcd, </div><div class="t m0 xa h7 y38 ff6 fs1 fc0 sc0 ls0 ws0"> output cout </div></div></div><div class="pi" data-data='{"ctm":[1.611792,0.000000,0.000000,1.611792,0.000000,0.000000]}'></div></div> </body> </html>