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<!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>AVR323 Interfacing GSM modems: AVRGSM_tools.c File Reference</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.3.7 --><div class="qindex"><a class="qindex" href="main.html">Main Page</a> | <a class="qindex" href="annotated.html">Data Structures</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Data Fields</a> | <a class="qindex" href="globals.html">Globals</a></div><h1>AVRGSM_FILES/AVRGSM_tools.c File Reference</h1><hr><a name="_details"></a><h2>Detailed Description</h2>Atmel Corporation<p><ul><li>File : AVRSMS_tools.c</li><li>Compiler : IAR EWAAVR 4.11a</li></ul><p><ul><li>Support mail : <a href="mailto:avr@atmel.com">avr@atmel.com</a></li></ul><p><ul><li>Supported devices : All devices with a UART/USART can be used. The example is written for ATmega128</li></ul><p><ul><li>AppNote : AVR323 - Interfacing GSM modems</li></ul><p><ul><li>Description : Example of how to use AT-Commands to control a GSM modem</li></ul><p><dl compact><dt><b>Revision</b></dt><dd>1.2 </dd></dl><dl compact><dt><b>Date</b></dt><dd>Wednesday, January 26, 2005 10:43:44 UTC </dd></dl><p>Definition in file <a class="el" href="AVRGSM__tools_8c-source.html">AVRGSM_tools.c</a>.<p><code>#include "<a class="el" href="AVRGSM__com_8h-source.html">AVRGSM_com.h</a>"</code><br><code>#include "<a class="el" href="AVRGSM__zip_8h-source.html">AVRGSM_zip.h</a>"</code><br><code>#include "<a class="el" href="AVRGSM__tools_8h-source.html">AVRGSM_tools.h</a>"</code><br><p>Include dependency graph for AVRGSM_tools.c:<p><center><img src="AVRGSM__tools_8c__incl.png" border="0" usemap="#AVRGSM_tools.c_map" alt="Include dependency graph"></center><map name="AVRGSM_tools.c_map"><area href="AVRGSM__com_8h.html" shape="rect" coords="7,7,132,34" alt=""><area href="AVRGSM__zip_8h.html" shape="rect" coords="156,7,271,34" alt=""><area href="AVRGSM__tools_8h.html" shape="rect" coords="295,7,423,34" alt=""></map><p><a href="AVRGSM__tools_8c-source.html">Go to the source code of this file.</a><table border=0 cellpadding=0 cellspacing=0><tr><td></td></tr><tr><td colspan=2><br><h2>Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>unsigned char * </td><td class="memItemRight" valign=bottom><a class="el" href="AVRGSM__tools_8c.html#a1">TOOLS__decodeCMGR</a> (int <a class="el" href="STATE__functions_8c.html#a0">index</a>)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Get start of compressed string. <a href="#a1"></a><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>int </td><td class="memItemRight" valign=bottom><a class="el" href="AVRGSM__tools_8c.html#a0">TOOLS_decodeCMTI</a> (void)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Used to get index of newly received message. <a href="#a0"></a><br><br></td></tr></table><hr><h2>Function Documentation</h2><a class="anchor" name="a1" doxytag="AVRGSM_tools.c::TOOLS__decodeCMGR" ></a><p><table class="mdTable" width="100%" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top"> unsigned char* TOOLS__decodeCMGR </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">int </td> <td class="mdname1" valign="top" nowrap> <em>index</em> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td><p>Get start of compressed string. <p>When a new message has been read from a given index, thsi function<br> will run through it, and find start of the encoded user text.<p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td></td><td valign=top><em>void</em> </td><td></td></tr> </table></dl><dl compact><dt><b>Return values:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td></td><td valign=top><em>in_handle</em> </td><td>if error in_handle points to '', else it will point to the string ready for decompression</td></tr> </table></dl><p>Local variables <p>Definition at line <a class="el" href="AVRGSM__tools_8c-source.html#l00080">80</a> of file <a class="el" href="AVRGSM__tools_8c-source.html">AVRGSM_tools.c</a>.<p>References <a class="el" href="AVRGSM__com_8c-source.html#l00317">COM_gets()</a>, <a class="el" href="AVRGSM__com_8c-source.html#l00289">COM_trim()</a>, and <a class="el" href="AVRGSM__zip_8c-source.html#l00164">ZIP_htoi()</a>.<p>Referenced by <a class="el" href="AVRGSM__api_8c-source.html#l00232">API_readmsg()</a>.<p><pre class="fragment"><div>00081 {00082 00084 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *in_handle;00085 <span class="keywordtype">int</span> i, len, field_length;00086 00087 len = <a class="code" href="AVRGSM__com_8c.html#a22">COM_trim</a>(); <span class="comment">//Trim off OK\r\n</span>00088 in_handle = <a class="code" href="AVRGSM__com_8c.html#a23">COM_gets</a>( ); <span class="comment">//Get rx_buff</span>00089 00090 in_handle += 2; <span class="comment">//Skip first \r\n</span>00091 00092 <span class="keywordflow">for</span>( i = 0; ( i < len ) && ( *in_handle++ != <span class="charliteral">'\n'</span> ); i++) <span class="comment">//Loop until we get '\n'</span>00093 {00094 ;00095 }00096 00097 <span class="comment">//Error</span>00098 <span class="keywordflow">if</span>( i >= len )00099 {00100 in_handle = <span class="charliteral">'\0'</span>;00101 <span class="keywordflow">return</span> in_handle;00102 }00103 00104 <span class="comment">//Everything OK</span>00105 <span class="keywordflow">else</span>00106 {00107 00108 field_length = 16 * <a class="code" href="AVRGSM__zip_8h.html#a6">ZIP_htoi</a>( *in_handle++ );00109 field_length = <a class="code" href="AVRGSM__zip_8h.html#a6">ZIP_htoi</a>( *in_handle++ );00110 00111 in_handle += 2*field_length + 2; <span class="comment">//Skip Service center nmbr</span>00112 00113 <span class="comment">//Find length of sender address</span>00114 field_length = 16 * <a class="code" href="AVRGSM__zip_8h.html#a6">ZIP_htoi</a>( *in_handle++ );00115 field_length = <a class="code" href="AVRGSM__zip_8h.html#a6">ZIP_htoi</a>( *in_handle++ );00116 00117 <span class="keywordflow">if</span>( field_length%2 )00118 {00119 field_length++; <span class="comment">//Check for trailing F</span>00120 }00121 00122 in_handle += 2 + field_length; <span class="comment">//Skip fields in header</span>00123 00124 in_handle += 14 + 4; <span class="comment">//Skip more fields...TP-PID, TP-DCS and TP-SCTS</span>00125 00126 <span class="keywordflow">return</span> ( in_handle + 2 ); <span class="comment">//Return correct pointer</span>00127 }00128 }</div></pre><p>Here is the call graph for this function:<p><center><img src="AVRGSM__tools_8c_a1_cgraph.png" border="0" usemap="#AVRGSM__tools_8c_a1_cgraph_map" alt=""></center><map name="AVRGSM__tools_8c_a1_cgraph_map"><area href="AVRGSM__com_8c.html#a23" shape="rect" coords="223,7,308,33" alt=""><area href="AVRGSM__com_8c.html#a22" shape="rect" coords="224,57,307,84" alt=""><area href="AVRGSM__zip_8h.html#a6" shape="rect" coords="230,108,302,135" alt=""></map> </td> </tr></table><a class="anchor" name="a0" doxytag="AVRGSM_tools.c::TOOLS_decodeCMTI" ></a><p><table class="mdTable" width="100%" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top"> int TOOLS_decodeCMTI </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">void </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td><p>Used to get index of newly received message. <p>Will search through the receive buffer found in AVRSMS_com.c, until a <br> ',' is found. If this charcter is found in the buffer, the next parameter will <br> be the new message index.<p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td></td><td valign=top><em>void</em> </td><td></td></tr> </table></dl><dl compact><dt><b>Return values:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td></td><td valign=top><em>i</em> </td><td>index of new message </td></tr> <tr><td></td><td valign=top><em>0</em> </td><td>Error with echo off</td></tr> </table></dl><p>Local variables <p>Definition at line <a class="el" href="AVRGSM__tools_8c-source.html#l00039">39</a> of file <a class="el" href="AVRGSM__tools_8c-source.html">AVRGSM_tools.c</a>.<p>References <a class="el" href="AVRGSM__com_8c-source.html#l00317">COM_gets()</a>, <a class="el" href="AVRGSM__com_8c-source.html#l00289">COM_trim()</a>, and <a class="el" href="AVRGSM__zip_8c-source.html#l00140">ZIP_atoi()</a>.<p>Referenced by <a class="el" href="STATE__functions_8c-source.html#l00141">ST_get_index()</a>.<p><pre class="fragment"><div>00040 {00041 00043 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *temp;00044 <span class="keywordtype">int</span> length, i;00045 00046 <span class="comment">//init</span>00047 length = 0;00048 00049 length = <a class="code" href="AVRGSM__com_8c.html#a22">COM_trim</a>( ); <span class="comment">//Trim off trailing OK\r\n</span>00050 temp = <a class="code" href="AVRGSM__com_8c.html#a23">COM_gets</a>( ); <span class="comment">//Get rx_buff</span>00051 00052 <span class="keywordflow">for</span>( i = 0; ( i < length ) && ( *temp++ != <span class="charliteral">','</span> ); i++) <span class="comment">//Loop until we get a ','</span>00053 {00054 ;00055 }00056 00057 <span class="comment">//Error</span>00058 <span class="keywordflow">if</span>( i >= length )00059 {00060 <span class="keywordflow">return</span> 0;00061 }00062 00063 <span class="keywordflow">else</span>00064 {00065 <span class="keywordflow">return</span> <a class="code" href="AVRGSM__zip_8h.html#a5">ZIP_atoi</a>( temp ); <span class="comment">//Convert ascii int to integer</span>00066 }00067 }</div></pre><p>Here is the call graph for this function:<p><center><img src="AVRGSM__tools_8c_a0_cgraph.png" border="0" usemap="#AVRGSM__tools_8c_a0_cgraph_map" alt=""></center><map name="AVRGSM__tools_8c_a0_cgraph_map"><area href="AVRGSM__com_8c.html#a23" shape="rect" coords="207,7,292,33" alt=""><area href="AVRGSM__com_8c.html#a22" shape="rect" coords="208,57,291,84" alt=""><area href="AVRGSM__zip_8h.html#a5" shape="rect" coords="214,108,286,135" alt=""></map> </td> </tr></table><hr size="1"><address style="align: right;"><small>Generated on Tue Nov 1 16:21:41 2005 for AVR323 Interfacing GSM modems by<a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border=0 ></a> 1.3.7 </small></address></body></html>⌨️ 快捷键说明
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