LCD.zip_LCD_VHDL/FPGA/Verilog_嵌入式/单片机/硬件编程下载-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/622ba6943d2fbb00076d5576/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/622ba6943d2fbb00076d5576/bg1.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x1 h3 y2 ff1 fs0 fc0 sc0 ls0 ws0">module LCD(</div><div class="t m0 x2 h3 y3 ff1 fs0 fc0 sc0 ls0 ws0">input Sys_Clk,</div><div class="t m0 x2 h3 y4 ff1 fs0 fc0 sc0 ls0 ws0">input Rst,</div><div class="t m0 x2 h3 y5 ff1 fs0 fc0 sc0 ls0 ws0">output r<span class="_ _0"></span>eg LCD_RS,</div><div class="t m0 x2 h3 y6 ff1 fs0 fc0 sc0 ls0 ws0">output LCD_R<span class="_ _0"></span>W,</div><div class="t m0 x2 h3 y7 ff1 fs0 fc0 sc0 ls0 ws0">output LCD_E,</div><div class="t m0 x2 h3 y8 ff1 fs0 fc0 sc0 ls0 ws0">output r<span class="_ _0"></span>eg [7:0]LCD_Data</div><div class="t m0 x2 h3 y9 ff1 fs0 fc0 sc0 ls0 ws0">);</div><div class="t m0 x3 h3 ya ff1 fs0 fc0 sc0 ls0 ws0">r<span class="_ _0"></span>eg LCD_Clk;</div><div class="t m0 x3 h3 yb ff1 fs0 fc0 sc0 ls0 ws0">r<span class="_ _0"></span>eg[7:0] state;</div><div class="t m0 x3 h3 yc ff1 fs0 fc0 sc0 ls0 ws0">r<span class="_ _0"></span>eg [23:0] cnt;</div><div class="t m0 x3 h3 yd ff1 fs0 fc0 sc0 ls0 ws0">r<span class="_ _0"></span>eg &ag;</div><div class="t m0 x3 h3 ye ff1 fs0 fc0 sc0 ls0 ws0">r<span class="_ _0"></span>eg[5:0]char_cnt;</div><div class="t m0 x3 h3 yf ff1 fs0 fc0 sc0 ls0 ws0">r<span class="_ _0"></span>eg[7:0]data_disp;</div><div class="t m0 x3 h3 y10 ff1 fs0 fc0 sc0 ls0 ws0">parameter T500KHZ=24'd49999;</div><div class="t m0 x3 h3 y11 ff1 fs0 fc0 sc0 ls0 ws0">always@(posedge Sys_Clk or negedge Rst)</div><div class="t m0 x3 h3 y12 ff1 fs0 fc0 sc0 ls0 ws0">begin</div><div class="t m0 x2 h3 y13 ff1 fs0 fc0 sc0 ls0 ws0">if(!Rst)</div><div class="t m0 x4 h3 y14 ff1 fs0 fc0 sc0 ls0 ws0">begin</div><div class="t m0 x5 h3 y15 ff1 fs0 fc0 sc0 ls0 ws0">cnt<=24'd0;</div><div class="t m0 x5 h3 y16 ff1 fs0 fc0 sc0 ls0 ws0">LCD_Clk<=1'b0;</div><div class="t m0 x4 h3 y17 ff1 fs0 fc0 sc0 ls0 ws0">end</div><div class="t m0 x2 h3 y18 ff1 fs0 fc0 sc0 ls0 ws0">else if(cnt==T500KHZ)</div><div class="t m0 x5 h3 y19 ff1 fs0 fc0 sc0 ls0 ws0">begin</div><div class="t m0 x6 h3 y1a ff1 fs0 fc0 sc0 ls0 ws0">cnt<=24'd0;</div><div class="t m0 x6 h3 y1b ff1 fs0 fc0 sc0 ls0 ws0">LCD_Clk<=~LCD_Clk;</div><div class="t m0 x5 h3 y1c ff1 fs0 fc0 sc0 ls0 ws0">end</div><div class="t m0 x2 h3 y1d ff1 fs0 fc0 sc0 ls0 ws0">else if(&ag==0)</div><div class="t m0 x2 h3 y1e ff1 fs0 fc0 sc0 ls0 ws0">begin</div><div class="t m0 x2 h3 y1f ff1 fs0 fc0 sc0 ls0 ws0">cnt<=24'd0;</div><div class="t m0 x2 h3 y20 ff1 fs0 fc0 sc0 ls0 ws0">LCD_Clk<=1'b0;</div><div class="t m0 x2 h3 y21 ff1 fs0 fc0 sc0 ls0 ws0">end </div><div class="t m0 x2 h3 y22 ff1 fs0 fc0 sc0 ls0 ws0">else</div><div class="t m0 x5 h3 y23 ff1 fs0 fc0 sc0 ls0 ws0">cnt<=cnt+1'b1;</div><div class="t m0 x3 h3 y24 ff1 fs0 fc0 sc0 ls0 ws0">end</div><div class="t m0 x3 h3 y25 ff1 fs0 fc0 sc0 ls0 ws0">parameter IDLE=8'b00_000_000;</div><div class="t m0 x3 h3 y26 ff1 fs0 fc0 sc0 ls0 ws0">parameter SETFUNCTION=8'b00_000_001;</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div> </body> </html>

<div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/622ba6943d2fbb00076d5576/bg2.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x3 h3 y3 ff1 fs0 fc0 sc0 ls0 ws0">parameter SWIT<span class="_ _1"></span>CHMODE=8'b00_000_100;</div><div class="t m0 x3 h3 y4 ff1 fs0 fc0 sc0 ls0 ws0">parameter CLEAR=8'b00_001_000;</div><div class="t m0 x3 h3 y5 ff1 fs0 fc0 sc0 ls0 ws0">parameter SETMODE=8'b00_010_000;</div><div class="t m0 x3 h3 y6 ff1 fs0 fc0 sc0 ls0 ws0">parameter SETDDR<span class="_ _1"></span>AM=8'b00_100_000;</div><div class="t m0 x3 h3 y7 ff1 fs0 fc0 sc0 ls0 ws0">parameter WRITER<span class="_ _1"></span>AM=8'b01_000_000;</div><div class="t m0 x3 h3 y8 ff1 fs0 fc0 sc0 ls0 ws0">parameter STOP=8'b10_000_000;</div><div class="t m0 x3 h3 y9 ff1 fs0 fc0 sc0 ls0 ws0">initial</div><div class="t m0 x3 h3 ya ff1 fs0 fc0 sc0 ls0 ws0">begin</div><div class="t m0 x7 h3 yb ff1 fs0 fc0 sc0 ls0 ws0">cnt=24'd0;</div><div class="t m0 x7 h3 yc ff1 fs0 fc0 sc0 ls0 ws0">state=IDLE;</div><div class="t m0 x7 h3 yd ff1 fs0 fc0 sc0 ls0 ws0">&ag=1'b1;</div><div class="t m0 x7 h3 ye ff1 fs0 fc0 sc0 ls0 ws0">LCD_Clk=1'b10;</div><div class="t m0 x7 h3 yf ff1 fs0 fc0 sc0 ls0 ws0">char_cnt=6'd0;</div><div class="t m0 x7 h3 y10 ff1 fs0 fc0 sc0 ls0 ws0">data_disp=8'd32;</div><div class="t m0 x3 h3 y27 ff1 fs0 fc0 sc0 ls0 ws0">end</div><div class="t m0 x3 h3 y13 ff1 fs0 fc0 sc0 ls0 ws0">always@(posedge LCD_Clk or negedge Rst)</div><div class="t m0 x3 h3 y14 ff1 fs0 fc0 sc0 ls0 ws0">begin</div><div class="t m0 x2 h3 y15 ff1 fs0 fc0 sc0 ls0 ws0">if(!Rst)</div><div class="t m0 x4 h3 y16 ff1 fs0 fc0 sc0 ls0 ws0">LCD_RS<=1'b0;</div><div class="t m0 x2 h3 y17 ff1 fs0 fc0 sc0 ls0 ws0">else<span class="_ _2"> </span>if(state==WRITER<span class="_ _1"></span>AM)</div><div class="t m0 x5 h3 y18 ff1 fs0 fc0 sc0 ls0 ws0">LCD_RS<=1'b1;</div><div class="t m0 x8 h3 y19 ff1 fs0 fc0 sc0 ls0 ws0">else</div><div class="t m0 x5 h3 y1a ff1 fs0 fc0 sc0 ls0 ws0">LCD_RS<=1'b0;</div><div class="t m0 x3 h3 y1b ff1 fs0 fc0 sc0 ls0 ws0">end</div><div class="t m0 x3 h3 y28 ff1 fs0 fc0 sc0 ls0 ws0">assign LCD_R<span class="_ _1"></span>W=1'b0;</div><div class="t m0 x3 h3 y1d ff1 fs0 fc0 sc0 ls0 ws0">assign LCD_E=(&ag==1)?LCD_Clk:1'b0;</div><div class="t m0 x3 h3 y1f ff1 fs0 fc0 sc0 ls0 ws0">always@(posedge LCD_Clk or negedge Rst)</div><div class="t m0 x3 h3 y20 ff1 fs0 fc0 sc0 ls0 ws0">begin</div><div class="t m0 x2 h3 y29 ff1 fs0 fc0 sc0 ls0 ws0">if(!Rst)</div><div class="t m0 x4 h3 y21 ff1 fs0 fc0 sc0 ls0 ws0">begin</div><div class="t m0 x5 h3 y22 ff1 fs0 fc0 sc0 ls0 ws0">state<=IDLE;</div><div class="t m0 x5 h3 y23 ff1 fs0 fc0 sc0 ls0 ws0">LCD_Data<=8'bzz_zzz_zzz;</div><div class="t m0 x4 h3 y2a ff1 fs0 fc0 sc0 ls0 ws0">end</div><div class="t m0 x2 h3 y2b ff1 fs0 fc0 sc0 ls0 ws0">else if(&ag==1)</div><div class="t m0 x8 h3 y2c ff1 fs0 fc0 sc0 ls0 ws0">begin</div><div class="t m0 x6 h3 y25 ff1 fs0 fc0 sc0 ls0 ws0">case(state)</div><div class="t m0 x9 h3 y26 ff1 fs0 fc0 sc0 ls0 ws0">IDLE:</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div>