无极调光C程序.rar_调光_LED亮度_行业应用下载-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/6264a4014c65f41259eab900/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/6264a4014c65f41259eab900/bg1.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x1 h3 y2 ff1 fs0 fc0 sc0 ls0 ws0">无极调光试验程序</div><div class="t m0 x1 h3 y3 ff2 fs0 fc0 sc0 ls0 ws0">  <span class="ff1">单片机采用<span class="_ _0"> </span></span>PIC12F683<span class="ff1">，这个单片机内部有硬件<span class="_ _0"> </span></span>CCP<span class="_ _0"> </span><span class="ff1">单元，可以配置成<span class="_ _0"> </span></span>PWM<span class="_ _0"> </span><span class="ff1">模式。为什么要用这个单片机，而不用别的型号，一来对<span class="_ _0"> </span></span>PIC<span class="_ _0"> </span><span class="ff1">比较熟悉，二</span></div><div class="t m0 x1 h3 y4 ff1 fs0 fc0 sc0 ls0 ws0">来买的到且不算贵。</div><div class="t m0 x1 h3 y5 ff2 fs0 fc0 sc0 ls0 ws0">  12F683<span class="_ _0"> </span><span class="ff1">跟<span class="_ _0"> </span></span>12F628<span class="_ _0"> </span><span class="ff1">一样，有<span class="_ _0"> </span></span>SO-8<span class="_ _0"> </span><span class="ff1">封装的帖片，体积一样。设计<span class="_ _0"> </span></span>IC<span class="_ _0"> </span><span class="ff1">的<span class="_ _0"> </span></span>2<span class="ff1">、</span>3<span class="_ _0"> </span><span class="ff1">脚分别对地接一个开关，</span>2<span class="_ _0"> </span><span class="ff1">脚开关按下后，占空比增加，<span class="_ _1"></span></span>3<span class="_ _0"> </span><span class="ff1">脚开关按下后占空</span></div><div class="t m0 x1 h3 y6 ff1 fs0 fc0 sc0 ls0 ws0">比减小。开机后初始值大概<span class="_ _0"> </span><span class="ff2">50</span>％，<span class="ff2">PWM<span class="_ _0"> </span></span>频率大概<span class="_ _0"> </span><span class="ff2">15.6KHz</span>。<span class="ff2">PWM<span class="_ _0"> </span></span>脉冲从<span class="_ _0"> </span><span class="ff2">IC<span class="_ _0"> </span></span>的<span class="_ _2"> </span><span class="ff2">5<span class="_ _2"> </span></span>脚输出。<span class="ff2">12F683<span class="_ _0"> </span></span>的资料也是不多，仅有<span class="_ _0"> </span><span class="ff2">Datasheet<span class="_ _0"> </span></span>可以参考，经过反复</div><div class="t m0 x1 h3 y7 ff1 fs0 fc0 sc0 ls0 ws0">测试，终于用下面代码调试成功：</div><div class="t m0 x1 h4 y8 ff2 fs0 fc0 sc0 ls0 ws0">;---------------------------------------------<span class="_ _1"></span>-------------</div><div class="t m0 x1 h4 y9 ff2 fs0 fc0 sc0 ls0 ws0">BSF ST<span class="_ _3"></span>A<span class="_ _3"></span>TUS,RP0</div><div class="t m0 x1 h4 ya ff2 fs0 fc0 sc0 ls0 ws0">MOVL<span class="_ _3"></span>W 07H</div><div class="t m0 x1 h3 yb ff2 fs0 fc0 sc0 ls0 ws0">MOVWF OPTION_REG ;<span class="ff1">允许上拉</span></div><div class="t m0 x1 h4 yc ff2 fs0 fc0 sc0 ls0 ws0">MOVL<span class="_ _3"></span>W 30H</div><div class="t m0 x1 h3 yd ff2 fs0 fc0 sc0 ls0 ws0">MOVWF WPU;<span class="ff1">设置<span class="_ _2"> </span></span>GP4<span class="ff1">、</span>GP5<span class="_ _0"> </span><span class="ff1">弱上拉</span></div><div class="t m0 x1 h3 ye ff2 fs0 fc0 sc0 ls0 ws0">MOVWF IOC;<span class="ff1">设置<span class="_ _2"> </span></span>GP4<span class="_ _1"></span><span class="ff1">、</span>GP5<span class="_ _2"> </span><span class="ff1">允许端口电平变化中断</span></div><div class="t m0 x1 h4 yf ff2 fs0 fc0 sc0 ls0 ws0">BSF INT<span class="_ _3"></span>CON,GPIE</div><div class="t m0 x1 h4 y10 ff2 fs0 fc0 sc0 ls0 ws0">;---------------------------------------------<span class="_ _1"></span>-------------</div><div class="t m0 x1 h4 y11 ff2 fs0 fc0 sc0 ls0 ws0">BCF ST<span class="_ _3"></span>A<span class="_ _3"></span>TUS,RP0</div><div class="t m0 x1 h4 y12 ff2 fs0 fc0 sc0 ls0 ws0">MOVL<span class="_ _3"></span>W 07H</div><div class="t m0 x1 h3 y13 ff2 fs0 fc0 sc0 ls0 ws0">MOVWF CMCON0;<span class="ff1">关闭比较器</span></div><div class="t m0 x1 h4 y14 ff2 fs0 fc0 sc0 ls0 ws0">;**********************************************************************</div><div class="t m0 x1 h4 y15 ff2 fs0 fc0 sc0 ls0 ws0">BSF ST<span class="_ _3"></span>A<span class="_ _3"></span>TUS,RP0</div><div class="t m0 x1 h3 y16 ff2 fs0 fc0 sc0 ls0 ws0">CLRF ANSEL;<span class="ff1">清除模拟选择寄存器</span></div><div class="t m0 x1 h4 y17 ff2 fs0 fc0 sc0 ls0 ws0">MOVL<span class="_ _3"></span>W 3FH</div><div class="t m0 x1 h3 y18 ff2 fs0 fc0 sc0 ls0 ws0">MOVWF PR2;<span class="ff1">设置<span class="_ _2"> </span></span>PR2,PWM<span class="_ _0"> </span><span class="ff1">周期</span>,<span class="ff1">默认<span class="_ _0"> </span></span>4M<span class="_ _2"> </span><span class="ff1">振荡输出<span class="_ _0"> </span></span>PWM<span class="_ _0"> </span><span class="ff1">频率约<span class="_ _0"> </span></span>15.6KHz</div><div class="t m0 x1 h4 y19 ff2 fs0 fc0 sc0 ls0 ws0">;---------------------------------------------<span class="_ _1"></span>-------------</div><div class="t m0 x1 h4 y1a ff2 fs0 fc0 sc0 ls0 ws0">BCF ST<span class="_ _3"></span>A<span class="_ _3"></span>TUS,RP0</div><div class="t m0 x1 h4 y1b ff2 fs0 fc0 sc0 ls0 ws0">MOVL<span class="_ _3"></span>W 1FH</div><div class="t m0 x1 h3 y1c ff2 fs0 fc0 sc0 ls0 ws0">MOVWF CCPR1L;<span class="ff1">设置占空比初值</span></div><div class="t m0 x1 h4 y1d ff2 fs0 fc0 sc0 ls0 ws0">;---------------------------------------------<span class="_ _1"></span>-------------</div><div class="t m0 x1 h4 y1e ff2 fs0 fc0 sc0 ls0 ws0">BSF ST<span class="_ _3"></span>A<span class="_ _3"></span>TUS,RP0</div><div class="t m0 x1 h4 y1f ff2 fs0 fc0 sc0 ls0 ws0">MOVL<span class="_ _3"></span>W 0F8H</div><div class="t m0 x1 h3 y20 ff2 fs0 fc0 sc0 ls0 ws0">MOVWF TRISIO;<span class="ff1">设置<span class="_ _2"> </span></span>GP2<span class="_ _0"> </span><span class="ff1">输出</span></div><div class="t m0 x1 h4 y21 ff2 fs0 fc0 sc0 ls0 ws0">;---------------------------------------------<span class="_ _1"></span>-------------</div><div class="t m0 x1 h4 y22 ff2 fs0 fc0 sc0 ls0 ws0">BCF ST<span class="_ _3"></span>A<span class="_ _3"></span>TUS,RP0</div><div class="t m0 x1 h4 y23 ff2 fs0 fc0 sc0 ls0 ws0">CLRF T2CON</div><div class="t m0 x1 h3 y24 ff2 fs0 fc0 sc0 ls0 ws0">BSF T2CON,TMR2ON ;<span class="ff1">设置<span class="_ _2"> </span></span>T2CON<span class="_ _0"> </span><span class="ff1">使能，预分频比<span class="_ _0"> </span></span>1</div><div class="t m0 x1 h4 y25 ff2 fs0 fc0 sc0 ls0 ws0">;---------------------------------------------<span class="_ _1"></span>-------------</div><div class="t m0 x1 h4 y26 ff2 fs0 fc0 sc0 ls0 ws0">MOVL<span class="_ _3"></span>W 0FH</div><div class="t m0 x1 h3 y27 ff2 fs0 fc0 sc0 ls0 ws0">MOVWF CCP1CON;<span class="ff1">设置<span class="_ _2"> </span></span>CCP<span class="_ _0"> </span><span class="ff1">模块为<span class="_ _0"> </span></span>PWM<span class="_ _2"> </span><span class="ff1">模式</span></div><div class="t m0 x1 h4 y28 ff2 fs0 fc0 sc0 ls0 ws0">;---------------------------------------------<span class="_ _1"></span>-------------</div><div class="t m0 x1 h3 y29 ff2 fs0 fc0 sc0 ls0 ws0">BSF INT<span class="_ _3"></span>CON,GIE;<span class="ff1">开启全局中断</span></div><div class="t m0 x1 h4 y2a ff2 fs0 fc0 sc0 ls0 ws0">LOOP GOTO L<span class="_ _3"></span>OOP</div><div class="t m0 x1 h4 y2b ff2 fs0 fc0 sc0 ls0 ws0">;**********************************************************************</div><div class="t m0 x1 h4 y2c ff2 fs0 fc0 sc0 ls0 ws0">GPINT BCF ST<span class="_ _3"></span>A<span class="_ _3"></span>TUS,RP0</div><div class="t m0 x1 h3 y2d ff2 fs0 fc0 sc0 ls0 ws0">BCF INT<span class="_ _3"></span>CON,GPIF;<span class="ff1">清中断标志</span></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>