📄 system_8c-source.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>Sample MSP430-4619LCD Project: system.c Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.1 --><div class="tabs"> <ul> <li><a href="main.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>Globals</span></a></li> </ul></div><h1>system.c</h1><a href="system_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span><a name="l00002"></a>00002 <span class="comment"> * File: system.c</span><a name="l00003"></a>00003 <span class="comment"> * Purpose: System initialization functions</span><a name="l00004"></a>00004 <span class="comment"> * Author: Peter Ivanov, Olimex Ltd.</span><a name="l00005"></a>00005 <span class="comment"> * Modified by:</span><a name="l00006"></a>00006 <span class="comment"> * Created: 2007-05-19 11:29:32</span><a name="l00007"></a>00007 <span class="comment"> * Last modify: 2007-06-10 13:14:02 ivanovp {Time-stamp}</span><a name="l00008"></a>00008 <span class="comment"> * Copyright: (C) Peter Ivanov, Olimex Ltd., 2005, 2007</span><a name="l00009"></a>00009 <span class="comment"> * Licence: GPL</span><a name="l00010"></a>00010 <span class="comment"> */</span><a name="l00016"></a>00016 <span class="comment">/**********************************************************************************/</span><a name="l00017"></a>00017 <span class="comment">/* */</span><a name="l00018"></a>00018 <span class="comment">/* Copyright (C) 2005 OLIMEX LTD. */</span><a name="l00019"></a>00019 <span class="comment">/* */</span><a name="l00020"></a>00020 <span class="comment">/* Module Name : system module */</span><a name="l00021"></a>00021 <span class="comment">/* File Name : system.h */</span><a name="l00022"></a>00022 <span class="comment">/* Revision : 01.00 */</span><a name="l00023"></a>00023 <span class="comment">/* Date : 2006/10/05 initial version */</span><a name="l00024"></a>00024 <span class="comment">/* */</span><a name="l00025"></a>00025 <span class="comment">/**********************************************************************************/</span><a name="l00026"></a>00026 <span class="preprocessor">#include "<a class="code" href="system_8h.html">system.h</a>"</span><a name="l00027"></a>00027 <span class="comment">//#include <msp430x44x.h></span><a name="l00028"></a>00028 <span class="preprocessor">#include <msp430xG461x.h></span><a name="l00029"></a>00029 <a name="l00030"></a>00030 <a name="l00031"></a>00031 <span class="comment">/****************************************************************************/</span><a name="l00032"></a>00032 <span class="comment">/* Init system frequency */</span><a name="l00033"></a>00033 <span class="comment">/* Function : InitFreq_XT2 */</span><a name="l00034"></a>00034 <span class="comment">/* Parameters */</span><a name="l00035"></a>00035 <span class="comment">/* Input : Nothing */</span><a name="l00036"></a>00036 <span class="comment">/* Output : Nothing */</span><a name="l00037"></a>00037 <span class="comment">/****************************************************************************/</span><a name="l00038"></a><a class="code" href="system_8h.html#6b6eb27671f51b077ef7b0b4314b1601">00038</a> <span class="keywordtype">void</span> <a class="code" href="system_8c.html#6b6eb27671f51b077ef7b0b4314b1601">InitFreq_XT2</a>(<span class="keywordtype">void</span>)<a name="l00039"></a>00039 {<a name="l00040"></a>00040 <span class="comment">// External oscilator 8MHz</span><a name="l00041"></a>00041 <a name="l00042"></a>00042 <span class="comment">/* Watchdog */</span><a name="l00043"></a>00043 <span class="comment">// Stop watchdog timer</span><a name="l00044"></a>00044 WDTCTL = WDTPW + WDTHOLD;<a name="l00045"></a>00045 <a name="l00046"></a>00046 <a name="l00047"></a>00047 <span class="comment">/* FLL+ Control Register 1 */</span><a name="l00048"></a>00048 <span class="comment">// SMCLK on, XT2 on, XT2 for main oscilator, ACLK By 1</span><a name="l00049"></a>00049 FLL_CTL1 = SELM1 + SELS + FLL_DIV_1;<a name="l00050"></a>00050 }<a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="comment">/****************************************************************************/</span><a name="l00053"></a>00053 <span class="comment">/* Init system frequency */</span><a name="l00054"></a>00054 <span class="comment">/* Function : InitFreq_XT1 */</span><a name="l00055"></a>00055 <span class="comment">/* Parameters */</span><a name="l00056"></a>00056 <span class="comment">/* Input : Nothing */</span><a name="l00057"></a>00057 <span class="comment">/* Output : Nothing */</span><a name="l00058"></a>00058 <span class="comment">/****************************************************************************/</span><a name="l00059"></a><a class="code" href="system_8h.html#bd655ce56e52c2f0cbf444b0c4e34ff8">00059</a> <span class="keywordtype">void</span> <a class="code" href="system_8c.html#bd655ce56e52c2f0cbf444b0c4e34ff8">InitFreq_XT1</a>(<span class="keywordtype">void</span>)<a name="l00060"></a>00060 {<a name="l00061"></a>00061 <span class="comment">// External oscilator 32kHz</span><a name="l00062"></a>00062 <span class="comment">// DCO - off</span><a name="l00063"></a>00063 <a name="l00064"></a>00064 <span class="comment">/* Watchdog */</span><a name="l00065"></a>00065 <span class="comment">// Stop watchdog timer</span><a name="l00066"></a>00066 WDTCTL = WDTPW + WDTHOLD;<a name="l00067"></a>00067 <a name="l00068"></a>00068 <span class="comment">/* FLL+ Control Register 1 */</span><a name="l00069"></a>00069 <span class="comment">// SMCLK off, XT2 off, LFXT1CLK for main oscilator, ACLK By 1</span><a name="l00070"></a>00070 FLL_CTL1 = SMCLKOFF + XT2OFF + SELM0 + SELM1 + FLL_DIV_1;<a name="l00071"></a>00071 <a name="l00072"></a>00072 }<a name="l00073"></a>00073 <a name="l00074"></a>00074 <span class="comment">/****************************************************************************/</span><a name="l00075"></a>00075 <span class="comment">/* Init system frequency */</span><a name="l00076"></a>00076 <span class="comment">/* Function : InitFreq */</span><a name="l00077"></a>00077 <span class="comment">/* Parameters */</span><a name="l00078"></a>00078 <span class="comment">/* Input : Nothing */</span><a name="l00079"></a>00079 <span class="comment">/* Output : Nothing */</span><a name="l00080"></a>00080 <span class="comment">/****************************************************************************/</span><a name="l00081"></a><a class="code" href="system_8h.html#f6a735109e11eb635a2cdd5b2dcdbaf5">00081</a> <span class="keywordtype">void</span> <a class="code" href="system_8c.html#f6a735109e11eb635a2cdd5b2dcdbaf5">InitFreq</a>(<span class="keywordtype">void</span>)<a name="l00082"></a>00082 {<a name="l00083"></a>00083 <span class="comment">/* Watchdog */</span><a name="l00084"></a>00084 <span class="comment">// Stop watchdog timer</span><a name="l00085"></a>00085 WDTCTL = WDTPW + WDTHOLD;<a name="l00086"></a>00086 <a name="l00087"></a>00087 <span class="comment">/* FLL+ Control Register 0 */</span>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -