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at89s51实验例程代码,包括跑马灯,串口通信,数码管显示,lcd显示,红外通信等各种常用实验
at89s51exp.rar
  • 实验例程
  • 动态数码管显示
  • C
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内容介绍
<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/622b3bd8ff7f9c46a60ae30d/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/622b3bd8ff7f9c46a60ae30d/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0"> *16 Characters 2 lines *Controller LSI built-in *+5V single power suppl</div><div class="c x1 y2 w2 h3"><div class="t m0 x2 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">y</div></div><div class="t m1 x3 h4 y4 ff2 fs1 fc0 sc1 ls0 ws0">&#9632;</div><div class="t m0 x4 h5 y4 ff3 fs0 fc0 sc0 ls0 ws0"> PIN CONNECTION</div><div class="t m0 x3 h2 y5 ff1 fs0 fc0 sc0 ls0 ws0">Pin No.<span class="_ _0"> </span>Symbol<span class="_ _1"> </span>Lever</div><div class="t m0 x1 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">module size------------------- 80.0Wx36.0Hx10.0D m</div><div class="c x1 y7 w3 h6"><div class="t m0 x5 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">m</div></div><div class="t m0 x6 h2 y6 ff2 fs0 fc0 sc0 ls0 ws0">1<span class="_ _2"> </span><span class="ff1">Vss<span class="_ _3"> </span>0V</span></div><div class="t m0 x1 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0">Effective display area--------------- 64.5Wx13.8H m</div><div class="c x1 y9 w4 h6"><div class="t m0 x7 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">m</div></div><div class="t m0 x6 h2 y8 ff2 fs0 fc0 sc0 ls0 ws0">2<span class="_ _4"> </span><span class="ff1">Vd</span></div><div class="c x8 y9 w5 h6"><div class="t m0 x9 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">d</div></div><div class="t m0 xa h2 y8 ff1 fs0 fc0 sc0 ls0 ws0">+5V</div><div class="t m0 x1 h2 ya ff1 fs0 fc0 sc0 ls0 ws0">Character size(5X8 dots) ----------- 3.0Wx5.5H m</div><div class="c x1 yb w6 h6"><div class="t m0 xb h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">m</div></div><div class="t m0 x6 h2 ya ff2 fs0 fc0 sc0 ls0 ws0">3<span class="_ _5"> </span><span class="ff1">Vo</span></div><div class="t m0 x1 h2 yc ff1 fs0 fc0 sc0 ls0 ws0">Character pitch ---------------------- 3.52WX5.88H m</div><div class="c x1 yd w7 h6"><div class="t m0 xc h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">m</div></div><div class="t m0 x1 h2 ye ff1 fs0 fc0 sc0 ls0 ws0">Dot size----------------------------- 0.52Wx0.60H m</div><div class="c x1 yf w8 h6"><div class="t m0 xd h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">m</div></div><div class="t m0 x1 h2 y10 ff1 fs0 fc0 sc0 ls0 ws0">Weight ------------------------------------- about 40 </div><div class="c x1 y11 w9 h6"><div class="t m0 xe h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">g</div></div><div class="t m0 xf h2 y12 ff1 fs0 fc0 sc0 ls0 ws0">H/L</div><div class="t m0 xf h2 y13 ff1 fs0 fc0 sc0 ls0 ws0">H/L</div><div class="t m0 x1 h2 y14 ff1 fs0 fc0 sc0 ls0 ws0">Power supply for logic(Vdd-Vss) ----------- 0 7.0</div><div class="c x1 y15 wa h7"><div class="t m0 x10 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">V</div></div><div class="t m0 x6 h8 y14 ff2 fs0 fc0 sc0 ls0 ws0">6</div><div class="t m0 x11 h2 y16 ff1 fs0 fc0 sc0 ls0 ws0">E<span class="_ _6"> </span>H.H-</div><div class="c x12 y17 wb h9"><div class="t m0 x13 h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">L</div></div><div class="t m0 x14 ha y14 ff1 fs2 fc0 sc0 ls0 ws0">Enable singnal</div><div class="c x1 y19 wc h7"><div class="t m0 x0 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">p</div></div><div class="t m0 x15 h2 y1a ff1 fs0 fc0 sc0 ls0 ws0">ower supply for LCD drive(Vdd-V0) ---- 0 5.0</div><div class="c x1 y19 wc h7"><div class="t m0 x16 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">V</div></div><div class="t m0 x6 h8 y1a ff2 fs0 fc0 sc0 ls0 ws0">7</div><div class="t m0 x17 h2 y1b ff1 fs0 fc0 sc0 ls0 ws0">D0<span class="_ _7"> </span>H/L</div><div class="t m0 x1 h2 y1c ff1 fs0 fc0 sc0 ls0 ws0">Input voltage(Vi) -------------------------- Vss Vdd</div><div class="c x1 y1d wd h7"><div class="t m0 x18 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">V</div></div><div class="t m0 x6 h8 y1c ff2 fs0 fc0 sc0 ls0 ws0">8</div><div class="t m0 x17 h2 y1e ff1 fs0 fc0 sc0 ls0 ws0">D1<span class="_ _7"> </span>H/L</div><div class="t m0 x1 h2 y1f ff1 fs0 fc0 sc0 ls0 ws0">Operating temperature(Ta)------------(-1</div><div class="c x1 y20 we h3"><div class="t m0 x19 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">0</div></div><div class="t m0 x1a h2 y1f ff2 fs0 fc0 sc0 ls0 ws0">&#8451;<span class="ff1">-- +60</span>&#8451;<span class="ff1">)<span class="_ _8"> </span></span>9</div><div class="t m0 x17 h2 y21 ff1 fs0 fc0 sc0 ls0 ws0">D2<span class="_ _7"> </span>H/L</div><div class="t m0 x1 h2 y22 ff1 fs0 fc0 sc0 ls0 ws0">Stroage temperature(Tstg)-----------(-1</div><div class="c x1 y23 wf h3"><div class="t m0 x1b h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">5</div></div><div class="t m0 x1c h2 y22 ff2 fs0 fc0 sc0 ls0 ws0">&#8451;<span class="ff1">-- +65</span>&#8451;<span class="ff1">)<span class="_ _9"> </span></span>10</div><div class="t m0 x17 h2 y24 ff1 fs0 fc0 sc0 ls0 ws0">D3<span class="_ _7"> </span>H/L</div><div class="t m0 x1d h8 y25 ff2 fs0 fc0 sc0 ls0 ws0">11</div><div class="t m0 x17 h2 y26 ff1 fs0 fc0 sc0 ls0 ws0">D4<span class="_ _7"> </span>H/L</div><div class="t m0 x1 ha y27 ff1 fs2 fc0 sc0 ls0 ws0">Ta=25<span class="ff2">&#8451;</span>, Vdd=5.0V<span class="_ _a"></span>+0.5V<span class="_ _b"> </span><span class="ff2 fs0">12</span></div><div class="t m0 x17 h2 y28 ff1 fs0 fc0 sc0 ls0 ws0">D5<span class="_ _7"> </span>H/L</div><div class="t m0 x1 h2 y29 ff1 fs0 fc0 sc0 ls0 ws0">Input 'high' voltage(ViH) ---------------- 3.5Vmin</div><div class="c x1 y2a w10 h7"><div class="t m0 x1e h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">.</div></div><div class="t m0 x1d h8 y29 ff2 fs0 fc0 sc0 ls0 ws0">13</div><div class="t m0 x17 h2 y2b ff1 fs0 fc0 sc0 ls0 ws0">D6<span class="_ _7"> </span>H/L</div><div class="t m0 x1 h2 y2c ff1 fs0 fc0 sc0 ls0 ws0">Input 'low' voltage(ViL) ----------------- 0.55Vmax</div><div class="c x1 y2d w11 h7"><div class="t m0 x1f h2 y2e ff1 fs0 fc0 sc0 ls0 ws0">.</div></div><div class="t m0 x1d h8 y2f ff2 fs0 fc0 sc0 ls0 ws0">14</div><div class="t m0 x17 h2 y30 ff1 fs0 fc0 sc0 ls0 ws0">D7<span class="_ _7"> </span>H/L</div><div class="t m0 x1 h2 y31 ff1 fs0 fc0 sc0 ls0 ws0">Output 'high' voltage(VoH)(-IoH+0.1mA) -- 3.75Vmin</div><div class="c x1 y32 w12 h7"><div class="t m0 x1f h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">.</div></div><div class="t m0 x1d h8 y33 ff2 fs0 fc0 sc0 ls0 ws0">15</div><div class="t m0 x20 h2 y34 ff1 fs0 fc0 sc0 ls0 ws0">LED</div><div class="c x20 y35 w13 h9"><div class="t m0 x21 h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">+</div></div><div class="t m0 x22 h2 y33 ff1 fs0 fc0 sc0 ls0 ws0">5V</div><div class="t m0 x1 h2 y36 ff1 fs0 fc0 sc0 ls0 ws0">Output 'low' voltage(VoL)(IoL=1.2mA) ----- 1.0Vmax</div><div class="c x1 y37 w14 h7"><div class="t m0 x23 h2 y2e ff1 fs0 fc0 sc0 ls0 ws0">.</div></div><div class="t m0 x1d h8 y38 ff2 fs0 fc0 sc0 ls0 ws0">16</div><div class="t m0 x24 h2 y39 ff1 fs0 fc0 sc0 ls0 ws0">LED-</div><div class="t m0 x22 h2 y38 ff1 fs0 fc0 sc0 ls0 ws0">0V</div><div class="t m0 x1 h2 y3a ff1 fs0 fc0 sc0 ls0 ws0">Power supply current(Idd)(Vdd=5.0V) --- 2.0mAmax</div><div class="c x1 y3b w15 h7"><div class="t m0 x1e h2 y2e ff1 fs0 fc0 sc0 ls0 ws0">.</div></div><div class="t m0 x25 h2 y3c ff1 fs0 fc0 sc0 ls0 ws0"> * In case of 4 bits instruction</div><div class="c x3 y3d w16 h9"><div class="t m0 x26 h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">,</div></div><div class="t m0 x27 h2 y3c ff1 fs0 fc0 sc0 ls0 ws0">data is transferred </div><div class="t m0 x1 h2 y3e ff1 fs0 fc0 sc0 ls0 ws0">Drive method ---------------------- 1/16Duty , 1/5bias</div><div class="c x1 y3f w17 h7"><div class="t m0 x28 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">.</div></div><div class="c x3 y40 w18 h9"><div class="t m0 x0 h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">by</div></div><div class="t m0 x1d h2 y41 ff1 fs0 fc0 sc0 ls0 ws0"> twice usin</div><div class="c x3 y40 w18 h9"><div class="t m0 x29 h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">g</div></div><div class="t m0 x2 h2 y41 ff1 fs0 fc0 sc0 ls0 ws0"> onl</div><div class="c x3 y40 w18 h9"><div class="t m0 x2a h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">y</div></div><div class="t m0 x2b h2 y41 ff1 fs0 fc0 sc0 ls0 ws0"> 4 buses of D4-D7</div><div class="c x3 y40 w18 h9"><div class="t m0 x2c h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">,</div></div><div class="t m0 x2d h2 y41 ff1 fs0 fc0 sc0 ls0 ws0">and D0-D3 are </div><div class="t m0 x3 h2 y42 ff1 fs0 fc0 sc0 ls0 ws0">not used, first operation is higher order 4 bits and second</div><div class="t m0 x25 h2 y43 ff1 fs0 fc0 sc0 ls0 ws0">is lower 4 bits of 8 bits ,but in case of 8 bits instruction,</div><div class="t m0 x3 h2 y44 ff1 fs0 fc0 sc0 ls0 ws0">data is transferred by data by data bus of D0-D7.</div><div class="t m0 xf h2 y45 ff1 fs0 fc0 sc0 ls0 ws0">H/L</div><div class="t m0 x2e hb y46 ff4 fs3 fc0 sc0 ls0 ws0">JM1602C</div><div class="t m0 x2f h2 y47 ff1 fs0 fc0 sc0 ls0 ws0">R/W</div><div class="t m0 x17 h2 y45 ff1 fs0 fc0 sc0 ls0 ws0">RS</div><div class="t m0 x30 h2 y5 ff1 fs0 fc0 sc0 ls0 ws0">Function</div><div class="t m0 x14 h2 yc ff1 fs0 fc0 sc0 ls0 ws0">L:Instruction code inpu</div><div class="c x14 yd w19 hc"><div class="t m0 x31 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">t</div></div><div class="t m0 x14 h2 y48 ff1 fs0 fc0 sc0 ls0 ws0">H:Data inpu</div><div class="c x14 y49 w1a hd"><div class="t m0 x32 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">t</div></div><div class="t m1 x33 h4 y4a ff2 fs1 fc0 sc1 ls0 ws0">&#9632;</div><div class="t m0 x34 h5 y4a ff3 fs0 fc0 sc0 ls0 ws0">MECHANICAL DATA (Nominal dimensions)</div><div class="t m1 x1 h4 y4b ff2 fs1 fc0 sc1 ls0 ws0">&#9632;</div><div class="t m0 x35 h5 y4b ff3 fs0 fc0 sc0 ls0 ws0">EXTERNAL DIMENSIONS AND DISPLAY PATTERN</div><div class="t m0 x6 h2 y45 ff1 fs0 fc0 sc0 ls0 ws0">4</div><div class="t m1 x36 h4 y4c ff2 fs1 fc0 sc1 ls0 ws0">&#9632;</div><div class="t m0 x37 h5 y4c ff3 fs0 fc0 sc0 ls0 ws0">ABSOLUTE MAXIMUM RATINGS min max</div><div class="t m1 x1 h4 y4d ff2 fs1 fc0 sc1 ls0 ws0">&#9632;</div><div class="t m0 x35 h5 y4d ff3 fs0 fc0 sc0 ls0 ws0">ELECTRICAL CHARACTERISTICS</div><div class="t m1 x1 h4 y4e ff2 fs1 fc0 sc1 ls0 ws0">&#9632;</div><div class="t m0 x35 h5 y4e ff3 fs0 fc0 sc0 ls0 ws0">BLOCK DIAGRAM</div><div class="t m0 x6 h2 y47 ff1 fs0 fc0 sc0 ls0 ws0">5</div><div class="t m0 x14 h2 y10 ff1 fs0 fc0 sc0 ls0 ws0">H:Data rea</div><div class="c x14 y11 w1b hc"><div class="t m0 x38 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">d</div></div><div class="t m0 x14 h2 y4f ff1 fs0 fc0 sc0 ls0 ws0">L:Data write</div><div class="t m1 x3 h4 y50 ff2 fs1 fc0 sc1 ls0 ws0">&#9632;</div><div class="t m0 x4 h5 y50 ff3 fs0 fc0 sc0 ls0 ws0">POWER SUPPLY</div><div class="t m0 x14 h2 y51 ff1 fs0 fc0 sc0 ls0 ws0">Power supply for LE</div><div class="c x14 y52 w1c h6"><div class="t m0 x39 h2 y2e ff1 fs0 fc0 sc0 ls0 ws0">D</div></div><div class="t m0 x14 h2 y53 ff1 fs0 fc0 sc0 ls0 ws0">Power supply for LE</div><div class="c x14 y54 w1c h6"><div class="t m0 x39 h2 y2e ff1 fs0 fc0 sc0 ls0 ws0">D</div></div><div class="t m0 x3a he y55 ff4 fs4 fc0 sc0 ls0 ws0">Data bus line *</div><div class="t m2 x8 hf y56 ff2 fs5 fc0 sc0 ls1 ws0">Vdd-Vo:LCD d<span class="_ _a"></span>riving volta<span class="_ _c"></span>ge</div><div class="t m2 x8 hf y57 ff2 fs5 fc0 sc0 ls1 ws0">VR:10K-20K</div><div class="t m3 x3b h10 y58 ff2 fs6 fc0 sc0 ls2 ws0">(GND)</div><div class="t m3 x2d h10 y59 ff2 fs6 fc0 sc0 ls3 ws0">Vdd</div><div class="t m3 x3c h10 y5a ff2 fs6 fc0 sc0 ls2 ws0">Vdd</div><div class="t m3 x3c h10 y5b ff2 fs6 fc0 sc0 ls3 ws0">Vss</div><div class="t m3 x3d h10 y5c ff2 fs6 fc0 sc0 ls2 ws0">V0</div><div class="t m4 x3e h11 y5d ff2 fs7 fc0 sc0 ls4 ws0">Vdd-V0</div><div class="t m3 x3f h10 y5e ff2 fs6 fc0 sc0 ls2 ws0">VR</div><div class="t m5 x35 h12 y5f ff2 fs8 fc0 sc0 ls5 ws0">RS</div><div class="t m5 x35 h12 y60 ff2 fs8 fc0 sc0 ls5 ws0">Vd<span class="_ _c"></span>d</div><div class="t m5 x35 h12 y61 ff2 fs8 fc0 sc0 ls5 ws0">VS<span class="_ _c"></span>S</div><div class="t m5 x35 h12 y62 ff2 fs8 fc0 sc0 ls5 ws0">V0</div><div class="t m5 x35 h12 y63 ff2 fs8 fc0 sc0 ls6 ws0">R/W</div><div class="t m5 x40 h12 y64 ff2 fs8 fc0 sc0 ls0 ws0">E</div><div class="t m5 x41 h12 y65 ff2 fs8 fc0 sc0 ls6 ws0">DB7</div><div class="t m5 x42 h12 y66 ff2 fs8 fc0 sc0 ls6 ws0">DB0</div><div class="t m6 x43 h13 y67 ff2 fs9 fc0 sc0 ls7 ws0">LCD PANEL</div><div class="t m5 x44 h12 y68 ff2 fs8 fc0 sc0 ls6 ws0">SEGMENT</div><div class="t m5 x45 h12 y69 ff2 fs8 fc0 sc0 ls0 ws0">8</div><div class="t m5 x46 h12 y6a ff2 fs8 fc0 sc0 ls6 ws0">COM16</div><div class="t m5 x47 h12 y6b ff2 fs8 fc0 sc0 ls6 ws0">SEG40</div><div class="t m5 x26 h12 y6c ff2 fs8 fc0 sc0 ls0 ws0">4</div><div class="t m7 x48 h14 y6d ff2 fsa fc0 sc0 ls8 ws0">CONTR<span class="_ _a"></span>OL</div><div class="t m7 x49 h14 y6e ff2 fsa fc0 sc0 ls8 ws0"> LSI</div><div class="t m8 x7 h12 y6f ff2 fs8 fc0 sc0 ls9 ws0">SEG40</div><div class="t m5 x4a h12 y70 ff2 fs8 fc0 sc0 ls6 ws0">DRIV<span class="_ _a"></span>ER X 1</div></div><div class="pi" data-data='{"ctm":[1.611639,0.000000,0.000000,1.611639,0.000000,0.000000]}'></div></div> </body> </html>
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