avrgsm__api_8c-source.html

SMS傳送Sourcode,compiler with C,AT command

00172   <span class="keywordflow">if</span>( ( payload_len = <a class="code" href="AVRGSM__zip_8h.html#a3">ZIP_compress</a>( msg, &amp;jump, <a class="code" href="AVRGSM__api_8c.html#a1">msgbuff</a>) ) == 0 ) <span class="comment">//Convert user text to pdu format</span>
00173   {
00174     <span class="keywordflow">return</span> 0;                                                     <span class="comment">//Something wrong happend during compression</span>
00175   }
00176 
00177   <span class="comment">//Compression ok</span>
00178   <span class="keywordflow">else</span>
00179   {
00180     <a class="code" href="AVRGSM__zip_8h.html#a7">ZIP_itoh</a>(payload_len, &amp;payload_len_c[0]);                     <span class="comment">//Convert Integer payload to hex in string format</span>
00181     len = <a class="code" href="AVRGSM__header_8h.html#a0">HEADER_LEN</a> + payload_len - jump;                        <span class="comment">//Calculate overall length</span>
00182 
00183     <a class="code" href="AVRGSM__com_8c.html#a13">COM_rx_reset</a>( );                                              <span class="comment">//Clear rx_buff</span>
00184     <a class="code" href="AVRGSM__com_8h.html#a11">COM_setSearchString</a>( <a class="code" href="AVRGSM__com_8h.html#a5">READY_</a> );                                <span class="comment">//Set "&gt; " to be search string</span>
00185     <a class="code" href="AVRGSM__com_8h.html#a15">COM_putsf</a>( <a class="code" href="AVRGSM__api_8c.html#a7">AT_CMGS</a> );                                         <span class="comment">//Send message</span>
00186     <a class="code" href="AVRGSM__com_8h.html#a13">COM_put_integer</a>( len );                                       <span class="comment">//append length</span>
00187     <a class="code" href="AVRGSM__com_8h.html#a15">COM_putsf</a>( <a class="code" href="AVRGSM__api_8c.html#a8">CRLF</a> );                                            <span class="comment">//CR+LF</span>
00188     <a class="code" href="AVRGSM__com_8c.html#a14">COM_rx_on</a>( );                                                 <span class="comment">//Receiver on</span>
00189 
00190     <span class="comment">//Append payload</span>
00191     <span class="keywordflow">if</span>( <a class="code" href="AVRGSM__api_8c.html#a9">API_check_acknowledge</a>() &gt; 0 )                             <span class="comment">//Wait for acknowledge = "&gt; "</span>
00192     {
00193       <a class="code" href="AVRGSM__com_8c.html#a13">COM_rx_reset</a>( );                                            <span class="comment">//Clear rx_buff</span>
00194       <a class="code" href="AVRGSM__com_8h.html#a11">COM_setSearchString</a>( <a class="code" href="AVRGSM__com_8h.html#a3">OK_</a> );                                 <span class="comment">//Set "OK" to be search string</span>
00195       <a class="code" href="AVRGSM__com_8h.html#a15">COM_putsf</a>( <a class="code" href="AVRGSM__header_8h.html#a1">PDU_HEADER</a> );
00196       <a class="code" href="AVRGSM__com_8h.html#a14">COM_puts</a>( payload_len_c );
00197       <a class="code" href="AVRGSM__com_8h.html#a14">COM_puts</a>( <a class="code" href="AVRGSM__api_8c.html#a1">msgbuff</a> );
00198       <a class="code" href="AVRGSM__com_8h.html#a12">COM_putchar</a>( 26 );
00199       <a class="code" href="AVRGSM__com_8c.html#a14">COM_rx_on</a>( );                                               <span class="comment">//Receiver on</span>
00200 
00201       <span class="keywordflow">if</span>( <a class="code" href="AVRGSM__api_8c.html#a9">API_check_acknowledge</a>() &gt; 0 )                           <span class="comment">//Acknowledge = OK</span>
00202       {
00203         <span class="keywordflow">return</span> 1;
00204       }
00205 
00206       <span class="keywordflow">else</span>                                                        <span class="comment">//Acknowledge != OK</span>
00207       {
00208         <span class="keywordflow">return</span> -2;
00209       }
00210 
00211     }
00212 
00213     <span class="keywordflow">else</span>                                                          <span class="comment">//Acknowledge != "&gt; "</span>
00214     {
00215         <span class="keywordflow">return</span> -1;
00216     }
00217   }
00218 }
00219 
00220 
<a name="l00232"></a><a class="code" href="AVRGSM__api_8h.html#a3">00232</a> <span class="keywordtype">int</span> <a class="code" href="AVRGSM__api_8h.html#a3">API_readmsg</a>( <span class="keywordtype">int</span> ind )
00233 {
00234 
00236     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *encodedmsg;                      <span class="comment">//Pointer to encoded message</span>
00237     <span class="keywordtype">int</span> i;
00238 
00239     <span class="comment">//Init</span>
00240     encodedmsg = <span class="charliteral">'\0'</span>;
00241     i = 0;
00242 
00243     <a class="code" href="AVRGSM__com_8c.html#a13">COM_rx_reset</a>( );                                <span class="comment">//Reset system</span>
00244     <a class="code" href="AVRGSM__com_8h.html#a11">COM_setSearchString</a>( <a class="code" href="AVRGSM__com_8h.html#a3">OK_</a> );                     <span class="comment">//Set OK to be search string</span>
00245     <a class="code" href="AVRGSM__com_8h.html#a15">COM_putsf</a>( <a class="code" href="AVRGSM__api_8c.html#a6">AT_CMGR</a> );                           <span class="comment">//Read message</span>
00246     <a class="code" href="AVRGSM__com_8h.html#a13">COM_put_integer</a>( ind );                         <span class="comment">//@index</span>
00247     <a class="code" href="AVRGSM__com_8h.html#a15">COM_putsf</a>( <a class="code" href="AVRGSM__api_8c.html#a8">CRLF</a> );                              <span class="comment">//CR+LF</span>
00248     <a class="code" href="AVRGSM__com_8c.html#a14">COM_rx_on</a>( );                                   <span class="comment">//Receiver on, wait for acknowledge</span>
00249 
00250     <span class="keywordflow">if</span>( <a class="code" href="AVRGSM__api_8c.html#a9">API_check_acknowledge</a>() &gt; 0 )               <span class="comment">//Read = OK</span>
00251     {
00252         encodedmsg = <a class="code" href="AVRGSM__tools_8h.html#a1">TOOLS__decodeCMGR</a>( ind );      <span class="comment">//Get encoded message from the data returned from the phone</span>
00253         i = <a class="code" href="AVRGSM__zip_8h.html#a4">ZIP_decompress</a>( encodedmsg, <a class="code" href="AVRGSM__api_8c.html#a1">msgbuff</a> );  <span class="comment">//Decompress this message</span>
00254 
00255         <span class="comment">//COM_puts( msgbuff );                      //Could be used during test, where the GSM modem is switched with a terminal application</span>
00256 
00257         <span class="keywordflow">return</span> i;
00258     }
00259 
00260     <span class="keywordflow">else</span>                                            <span class="comment">//Read != OK</span>
00261     {
00262         <span class="keywordflow">return</span> 0;
00263     }
00264 }
00265 
00266 
<a name="l00278"></a><a class="code" href="AVRGSM__api_8c.html#a9">00278</a> <span class="keywordtype">int</span> <a class="code" href="AVRGSM__api_8c.html#a9">API_check_acknowledge</a>( <span class="keywordtype">void</span> )
00279 {
00280 
00282     <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i, ii;
00283 
00284     <span class="keywordflow">for</span>( i = 0; ( <a class="code" href="AVRGSM__api_8c.html#a0">rx_ack</a> == 0 ) &amp;&amp; ( i &lt; 65535 ); i++ ) <span class="comment">//Wait loop</span>
00285     {
00286         <span class="keywordflow">for</span>( ii = 0; ii &lt; 10; ii++ )
00287         {
00288             ;
00289         }
00290     }
00291 
00292     <span class="keywordflow">if</span>( <a class="code" href="AVRGSM__api_8c.html#a0">rx_ack</a> &gt; 0 )                                    <span class="comment">//Everything worked out fine...rx turned off</span>
00293     {
00294         <a class="code" href="AVRGSM__api_8c.html#a0">rx_ack</a> = 0;                                     <span class="comment">//Reset flag</span>
00295         <span class="keywordflow">return</span> 1;
00296     }
00297 
00298     <span class="keywordflow">else</span>                                                <span class="comment">//A timeout could result from no acknowledge, wrong acknowledge or buffer overrun</span>
00299     {
00300         <a class="code" href="AVRGSM__com_8c.html#a15">COM_rx_off</a>( );                                  <span class="comment">//Receiver off</span>
00301         <a class="code" href="AVRGSM__com_8c.html#a13">COM_rx_reset</a>( );                                <span class="comment">//Reset buffer and interrupt routine</span>
00302         <span class="keywordflow">return</span> 0;                                       <span class="comment">//Timed out, or wrong acknowledge from phone</span>
00303     }
00304 }
</div></pre><hr size="1"><address style="align: right;"><small>Generated on Tue Nov 1 16:21:39 2005 for AVR323 Interfacing GSM modems by
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