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<a name="l00146"></a>00146 <a class="code" href="Self__programming_8c.html#d29e91755e1d3695b74c15e89019db39">WriteBufToFlash</a>(<a class="code" href="Self__programming_8h.html#7344bf2129730480f9e46fb7f2cb1ceb">ADR_FLASH_BUFFER</a>); <span class="comment">// Writes to Flash recovery buffer</span><a name="l00147"></a>00147 <a class="code" href="Self__programming_8c.html#e43874319c89f039d4c684ca71e3cc89">FlashBackup</a>.pageNumber=(<span class="keywordtype">unsigned</span> int)(flashStartAdr/PAGESIZE);<a name="l00148"></a>00148 <a class="code" href="Self__programming_8c.html#e43874319c89f039d4c684ca71e3cc89">FlashBackup</a>.status = <a class="code" href="Self__programming_8h.html#d1d89ef93c516c3d36de362a540a082e">FLASH_BUFFER_FULL_ID</a>; <span class="comment">// Indicates that Flash recovery buffer</span><a name="l00149"></a>00149 <span class="comment">// contains unwritten data</span><a name="l00150"></a>00150 <span class="keywordflow">while</span>(EECR & (1<<EEWE));<a name="l00151"></a>00151 <span class="preprocessor"> #endif</span><a name="l00152"></a>00152 <span class="preprocessor"></span> <span class="keywordflow">for</span>(index = 0; index < PAGESIZE; index+=2){ <span class="comment">// Fills Flash write buffer</span><a name="l00153"></a>00153 _SPM_FILLTEMP(index, (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)dataPage[index]+((<span class="keywordtype">unsigned</span> int)dataPage[index+1] << 8));<a name="l00154"></a>00154 }<a name="l00155"></a>00155 <a class="code" href="Self__programming_8c.html#d29e91755e1d3695b74c15e89019db39">WriteBufToFlash</a>(flashStartAdr); <span class="comment">// Writes to Flash</span><a name="l00156"></a>00156 <span class="preprocessor"> #ifdef __FLASH_RECOVER</span><a name="l00157"></a>00157 <span class="preprocessor"></span> <a class="code" href="Self__programming_8c.html#e43874319c89f039d4c684ca71e3cc89">FlashBackup</a>.status=0; <span class="comment">// Inicate that Flash buffer does</span><a name="l00158"></a>00158 <span class="comment">// not contain data for writing</span><a name="l00159"></a>00159 <span class="keywordflow">while</span>(EECR & (1<<EEWE));<a name="l00160"></a>00160 <span class="preprocessor"> #endif</span><a name="l00161"></a>00161 <span class="preprocessor"></span><a name="l00162"></a>00162 EECR |= eepromInterruptSettings; <span class="comment">// Restore EEPROM interrupt mask</span><a name="l00163"></a>00163 <span class="keywordflow">return</span> <a class="code" href="Self__programming_8h.html#c0d83f0b82a6b30de8811e69e6d95c61">TRUE</a>; <span class="comment">// Return TRUE if address</span><a name="l00164"></a>00164 <span class="comment">// valid for writing</span><a name="l00165"></a>00165 }<a name="l00166"></a>00166 <span class="keywordflow">else</span><a name="l00167"></a>00167 <span class="keywordflow">return</span> <a class="code" href="Self__programming_8h.html#946003f97ccc52d5d3b54ac0ec31bbfc">FALSE</a>; <span class="comment">// Return FALSE if not address not</span><a name="l00168"></a>00168 <span class="comment">// valid for writing</span><a name="l00169"></a>00169 }<a name="l00170"></a>00170 <a name="l00178"></a><a class="code" href="Self__programming_8h.html#dab3fc05882b5f5511a24d423119e003">00178</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="Self__programming_8c.html#dab3fc05882b5f5511a24d423119e003">RecoverFlash</a>(){<a name="l00179"></a>00179 <span class="preprocessor">#ifdef __FLASH_RECOVER</span><a name="l00180"></a>00180 <span class="preprocessor"></span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> index;<a name="l00181"></a>00181 <span class="keywordflow">if</span>(<a class="code" href="Self__programming_8c.html#e43874319c89f039d4c684ca71e3cc89">FlashBackup</a>.status == <a class="code" href="Self__programming_8h.html#d1d89ef93c516c3d36de362a540a082e">FLASH_BUFFER_FULL_ID</a>){ <span class="comment">// Checks if Flash recovery</span><a name="l00182"></a>00182 <span class="comment">// buffer contains data</span><a name="l00183"></a>00183 <span class="keywordflow">for</span>(index=0; index < PAGESIZE; index+=2){ <span class="comment">// Writes to Flash write buffer</span><a name="l00184"></a>00184 _SPM_FILLTEMP( index, *((<a class="code" href="Self__programming_8h.html#ccc9c42b0a998824046b26acfb726a7c">MyFlashIntPointer</a>)(<a class="code" href="Self__programming_8h.html#7344bf2129730480f9e46fb7f2cb1ceb">ADR_FLASH_BUFFER</a>+index)) );<a name="l00185"></a>00185 }<a name="l00186"></a>00186 <a class="code" href="Self__programming_8c.html#d29e91755e1d3695b74c15e89019db39">WriteBufToFlash</a>((<a class="code" href="Self__programming_8h.html#b6f1b2644de7b0bfdbda193929167b4a">MyAddressType</a>)<a class="code" href="Self__programming_8c.html#e43874319c89f039d4c684ca71e3cc89">FlashBackup</a>.pageNumber * PAGESIZE);<a name="l00187"></a>00187 <a class="code" href="Self__programming_8c.html#e43874319c89f039d4c684ca71e3cc89">FlashBackup</a>.status=0; <span class="comment">// Inicate that Flash buffer does</span><a name="l00188"></a>00188 <span class="comment">// not contain data for writing</span><a name="l00189"></a>00189 <span class="keywordflow">while</span>(EECR & (1<<EEWE));<a name="l00190"></a>00190 <span class="keywordflow">return</span> <a class="code" href="Self__programming_8h.html#c0d83f0b82a6b30de8811e69e6d95c61">TRUE</a>; <span class="comment">// Returns TRUE if recovery has</span><a name="l00191"></a>00191 <span class="comment">// taken place</span><a name="l00192"></a>00192 }<a name="l00193"></a>00193 <span class="preprocessor">#endif</span><a name="l00194"></a>00194 <span class="preprocessor"></span> <span class="keywordflow">return</span> <a class="code" href="Self__programming_8h.html#946003f97ccc52d5d3b54ac0ec31bbfc">FALSE</a>;<a name="l00195"></a>00195 }<a name="l00196"></a>00196 <a name="l00197"></a>00197 <a name="l00207"></a><a class="code" href="Self__programming_8h.html#968efe3412fbf2252905db9c760c6aff">00207</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="Self__programming_8c.html#968efe3412fbf2252905db9c760c6aff">AddressCheck</a>(<a class="code" href="Self__programming_8h.html#b6f1b2644de7b0bfdbda193929167b4a">MyAddressType</a> flashAdr){<a name="l00208"></a>00208 <span class="preprocessor"> #ifdef __FLASH_RECOVER</span><a name="l00209"></a>00209 <span class="preprocessor"></span> <span class="comment">// The next line gives a warning 'pointless comparison with zero' if ADR_LIMIT_LOW is 0. Ignore it.</span><a name="l00210"></a>00210 <span class="keywordflow">if</span>( (flashAdr >= <a class="code" href="Self__programming_8h.html#53e0ab773e1383596056656041ceb630">ADR_LIMIT_LOW</a>) && (flashAdr <= <a class="code" href="Self__programming_8h.html#356b068aabf148d88bb44104bd07f6de">ADR_LIMIT_HIGH</a>) &&<a name="l00211"></a>00211 (flashAdr != <a class="code" href="Self__programming_8h.html#7344bf2129730480f9e46fb7f2cb1ceb">ADR_FLASH_BUFFER</a>) && !(flashAdr & (PAGESIZE-1)) )<a name="l00212"></a>00212 <span class="keywordflow">return</span> <a class="code" href="Self__programming_8h.html#c0d83f0b82a6b30de8811e69e6d95c61">TRUE</a>; <span class="comment">// Address is a valid page address</span><a name="l00213"></a>00213 <span class="keywordflow">else</span><a name="l00214"></a>00214 <span class="keywordflow">return</span> <a class="code" href="Self__programming_8h.html#946003f97ccc52d5d3b54ac0ec31bbfc">FALSE</a>; <span class="comment">// Address is not a valid page address</span><a name="l00215"></a>00215 #<span class="keywordflow">else</span><a name="l00216"></a>00216 <span class="keywordflow">if</span>((flashAdr >= <a class="code" href="Self__programming_8h.html#53e0ab773e1383596056656041ceb630">ADR_LIMIT_LOW</a>) && (flashAdr <= <a class="code" href="Self__programming_8h.html#356b068aabf148d88bb44104bd07f6de">ADR_LIMIT_HIGH</a>) && !(flashAdr & (PAGESIZE-1) ) )<a name="l00217"></a>00217 <span class="keywordflow">return</span> <a class="code" href="Self__programming_8h.html#c0d83f0b82a6b30de8811e69e6d95c61">TRUE</a>; <span class="comment">// Address is a valid page address</span><a name="l00218"></a>00218 <span class="keywordflow">else</span><a name="l00219"></a>00219 <span class="keywordflow">return</span> <a class="code" href="Self__programming_8h.html#946003f97ccc52d5d3b54ac0ec31bbfc">FALSE</a>; <span class="comment">// Address is not a valid page address</span><a name="l00220"></a>00220 <span class="preprocessor"> #endif</span><a name="l00221"></a>00221 <span class="preprocessor"></span>}<a name="l00222"></a>00222 <a name="l00223"></a>00223 <a name="l00228"></a><a class="code" href="Self__programming_8h.html#d29e91755e1d3695b74c15e89019db39">00228</a> <span class="keywordtype">void</span> <a class="code" href="Self__programming_8c.html#d29e91755e1d3695b74c15e89019db39">WriteBufToFlash</a>(<a class="code" href="Self__programming_8h.html#b6f1b2644de7b0bfdbda193929167b4a">MyAddressType</a> flashStartAdr){<a name="l00229"></a>00229 <span class="preprocessor">#pragma diag_suppress=Pe1053 // Suppress warning for conversion from long-type address to flash ptr.</span><a name="l00230"></a>00230 <span class="preprocessor"></span><span class="preprocessor"> #ifdef __HAS_RAMPZ__</span><a name="l00231"></a>00231 <span class="preprocessor"></span> RAMPZ = (<span class="keywordtype">unsigned</span> char)(flashStartAdr >> 16);<a name="l00232"></a>00232 <span class="preprocessor"> #endif</span><a name="l00233"></a>00233 <span class="preprocessor"></span> _SPM_ERASE(flashStartAdr);<a name="l00234"></a>00234 <span class="keywordflow">while</span>( <a class="code" href="Self__programming_8h.html#b6249f3eaad49b380d1e0a387a3fdb31">SPMControllRegister</a> & (1<<SPMEN) ); <span class="comment">// Wait until Flash write completed</span><a name="l00235"></a>00235 _SPM_PAGEWRITE(flashStartAdr);<a name="l00236"></a>00236 <span class="keywordflow">while</span>( <a class="code" href="Self__programming_8h.html#b6249f3eaad49b380d1e0a387a3fdb31">SPMControllRegister</a> & (1<<SPMEN) ); <span class="comment">// Wait until Flash write completed</span><a name="l00237"></a>00237 <span class="preprocessor"> #ifdef RWWSRE</span><a name="l00238"></a>00238 <span class="preprocessor"></span> __DataToR0ByteToSPMCR_SPM( 0, (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>)(1<<RWWSRE)|(1<<SPMEN)); <span class="comment">// Enable RWW</span><a name="l00239"></a>00239 <span class="preprocessor"> #endif</span><a name="l00240"></a>00240 <span class="preprocessor"></span><span class="preprocessor">#pragma diag_default=Pe1053 // Back to default.</span><a name="l00241"></a>00241 <span class="preprocessor"></span>}<a name="l00242"></a>00242 <a name="l00247"></a><a class="code" href="Self__programming_8h.html#6c0d2f39df7714f493c214ed2ec42493">00247</a> <span class="keywordtype">void</span> <a class="code" href="Self__programming_8c.html#6c0d2f39df7714f493c214ed2ec42493">LpmReplaceSpm</a>(<a class="code" href="Self__programming_8h.html#b6f1b2644de7b0bfdbda193929167b4a">MyAddressType</a> flashAddr, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> data){<a name="l00248"></a>00248 <span class="preprocessor">#pragma diag_suppress=Pe1053 // Suppress warning for conversion from long-type address to flash ptr.</span><a name="l00249"></a>00249 <span class="preprocessor"></span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> index, oddByte, pcWord;<a name="l00250"></a>00250 <a class="code" href="Self__programming_8h.html#b6f1b2644de7b0bfdbda193929167b4a">MyAddressType</a> pageAdr;<a name="l00251"></a>00251 oddByte=(<span class="keywordtype">unsigned</span> char)flashAddr & 1;<a name="l00252"></a>00252 pcWord=(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)flashAddr & (PAGESIZE-2); <span class="comment">// Used when writing FLASH temp buffer</span><a name="l00253"></a>00253 pageAdr=flashAddr & ~(PAGESIZE-1); <span class="comment">// Get FLASH page address from byte address</span><a name="l00254"></a>00254 <span class="keywordflow">for</span>(index=0; index < PAGESIZE; index+=2){<a name="l00255"></a>00255 <span class="keywordflow">if</span>(index==pcWord){<a name="l00256"></a>00256 <span class="keywordflow">if</span>(oddByte){<a name="l00257"></a>00257 _SPM_FILLTEMP( index, (*(<a class="code" href="Self__programming_8h.html#2fcb8b22c8cdb1abe50824d192e43170">MyFlashCharPointer</a>)(flashAddr & ~1) | ((<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)data<<8)) );<a name="l00258"></a>00258 } <span class="comment">// Write odd byte in temporary buffer</span><a name="l00259"></a>00259 <span class="keywordflow">else</span>{<a name="l00260"></a>00260 _SPM_FILLTEMP( index, ( (*( (<a class="code" href="Self__programming_8h.html#2fcb8b22c8cdb1abe50824d192e43170">MyFlashCharPointer</a>)flashAddr+1)<<8) | data ) );<a name="l00261"></a>00261 } <span class="comment">// Write even byte in temporary buffer</span><a name="l00262"></a>00262 }<a name="l00263"></a>00263 <span class="keywordflow">else</span>{<a name="l00264"></a>00264 _SPM_FILLTEMP(index, *( (<a class="code" href="Self__programming_8h.html#ccc9c42b0a998824046b26acfb726a7c">MyFlashIntPointer</a>)(pageAdr+index) ) );<a name="l00265"></a>00265 } <span class="comment">// Write Flash word directly to temporary buffer</span><a name="l00266"></a>00266 }<a name="l00267"></a>00267 <span class="preprocessor">#pragma diag_default=Pe1053 // Back to default.</span><a name="l00268"></a>00268 <span class="preprocessor"></span>}</pre></div><hr size="1"><address style="align: right;"><small>Generated on Wed Jan 18 16:19:21 2006 for AVR106 - C Functions for Reading and Writing to Flash Memory by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.5 </small></address></body></html>⌨️ 快捷键说明
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