MCB1000.rar_The Chip_单片机开发_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/622bb2973d2fbb00071ff484/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/622bb2973d2fbb00071ff484/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">#include "LPC13<span class="_ _0"></span>xx.h" <span class="_ _0"></span> /* LPC13xx defin<span class="_ _0"></span>itions <span class="_ _0"></span> */ </div><div class="t m0 x1 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">#define LED_NUM<span class="_ _0"></span> 8 <span class="_ _0"></span> /* Number <span class="_ _0"></span>of user LEDs <span class="_ _0"></span> */ </div><div class="t m0 x1 h2 y4 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y5 ff1 fs0 fc0 sc0 ls0 ws0">const unsigned long led<span class="_ _0"></span>_mask[] = { 1<span class="_ _0"></span><<0, 1<<1, <span class="_ _0"></span>1<<2, 1<<3, 1<<<span class="_ _0"></span>4, 1<<5, 1<<6,<span class="_ _0"></span> 1<<7 }; </div><div class="t m0 x1 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">volatile unsigned l<span class="_ _0"></span>ong SysTi<span class="_ _0"></span>ckCnt; /* SysTic<span class="_ _0"></span>k Counter <span class="_ _0"></span> */ </div><div class="t m0 x1 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0">void SysTick_Handler <span class="_ _0"></span>(void) { <span class="_ _0"></span> /* SysTick Int<span class="_ _0"></span>errupt Han<span class="_ _0"></span>dler (1ms) */ </div><div class="t m0 x1 h2 y9 ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">SysTickCnt++;<span class="_ _0"></span> </span></div><div class="t m0 x1 h2 ya ff1 fs0 fc0 sc0 ls0 ws0">} </div><div class="t m0 x1 h2 yb ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 yc ff1 fs0 fc0 sc0 ls0 ws0">void Delay (unsigned l<span class="_ _0"></span>ong tick) { <span class="_ _0"></span> /* Delay Functi<span class="_ _0"></span>on <span class="ls2">*/</span> </div><div class="t m0 x1 h2 yd ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">unsigned long s<span class="_ _0"></span>ystickcnt; </span></div><div class="t m0 x1 h2 ye ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 yf ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">systickcnt = S<span class="_ _0"></span>ysTickCnt; </span></div><div class="t m0 x1 h2 y10 ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">while ((SysTickCnt<span class="_ _0"></span> - systickcnt) <span class="_ _0"></span>< tick) __wfi(); </span></div><div class="t m0 x1 h2 y11 ff1 fs0 fc0 sc0 ls0 ws0">} </div><div class="t m0 x1 h2 y12 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y13 ff1 fs0 fc0 sc0 ls0 ws0">int main (void) { <span class="_ _0"></span> /* <span class="_ _0"></span>Main Progra<span class="_ _0"></span>m <span class="_ _0"></span>*/ </div><div class="t m0 x1 h2 y14 ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">int num = -<span class="ls3">1; <span class="_ _0"></span><span class="ls0"> </span></span></span></div><div class="t m0 x1 h2 y15 ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">int dir = 1; </span></div><div class="t m0 x1 h2 y16 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y17 ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">SystemInit(); </span></div><div class="t m0 x1 h2 y18 ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">LPC_SYSCON->SYSTIC<span class="_ _0"></span>KCLKDIV = LPC_SYSCON-<span class="_ _0"></span>>SYSAHBCLK<span class="_ _0"></span>DIV; /* Set systi<span class="_ _0"></span>ck clock = sys cloc<span class="_ _0"></span>k */ </span></div><div class="t m0 x1 h2 y19 ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">SysTick_Config<span class="_ _0"></span>(SystemFre<span class="_ _0"></span>quency/100); <span class="_ _0"></span>/* Generate in<span class="_ _0"></span>terrupt each ~10 <span class="_ _0"></span>ms */ </span></div><div class="t m0 x1 h2 y1a ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m0 x1 h2 y1b ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">LPC_SYSCON->SSPC<span class="_ _0"></span>LKDIV = 0; <span class="_ _0"></span> /* Disable unu<span class="_ _0"></span>sed dividers <span class="_ _0"></span> */ </span></div><div class="t m0 x1 h2 y1c ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">LPC_SYSCON->UART<span class="_ _0"></span>CLKDIV = 0<span class="_ _0"></span>; </span></div><div class="t m0 x1 h2 y1d ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">LPC_SYSCON->USBCL<span class="_ _0"></span>KDIV = 0; </span></div><div class="t m0 x1 h2 y1e ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">LPC_SYSCON->W<span class="_ _0"></span>DTCLKDI<span class="_ _0"></span>V = 0; </span></div><div class="t m0 x1 h2 y1f ff1 fs0 fc0 sc0 ls1 ws0"> <span class="ls0">LPC_SYSCON->CL<span class="_ _0"></span>KOUTDIV = 0; </span></div></div><div class="pi" data-data='{"ctm":[1.611792,0.000000,0.000000,1.611792,0.000000,0.000000]}'></div></div> </body> </html>