begriffs open source - cmsis/blob - main/Core/html/group__Dcache__functions__m7.html

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  46    <div id="projectname">CMSIS-Core (Cortex-M)
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  55    <div id="projectbrief">CMSIS-Core support for Cortex-M processor-based devices</div>
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 128
 129 <div class="header">
 130   <div class="summary">
 131 <a href="#func-members">Functions</a>  </div>
 132   <div class="headertitle"><div class="title">D-Cache Functions<div class="ingroups"><a class="el" href="group__cache__functions__m7.html">Cache Functions (Level-1)</a></div></div></div>
 133 </div><!--header-->
 134 <div class="contents">
 135
 136 <p>Functions for the level-1 data cache.
 137 <a href="#details">More...</a></p>
 138 <table class="memberdecls">
 139 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
 140 Functions</h2></td></tr>
 141 <tr class="memitem:ga3861db932100ccb53f994e2cc68ed79c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#ga3861db932100ccb53f994e2cc68ed79c">SCB_EnableDCache</a> (void)</td></tr>
 142 <tr class="memdesc:ga3861db932100ccb53f994e2cc68ed79c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Enable D-Cache.  <br /></td></tr>
 143 <tr class="separator:ga3861db932100ccb53f994e2cc68ed79c"><td class="memSeparator" colspan="2">&#160;</td></tr>
 144 <tr class="memitem:gafe64b44d1a61483a947e44a77a9d3287"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#gafe64b44d1a61483a947e44a77a9d3287">SCB_DisableDCache</a> (void)</td></tr>
 145 <tr class="memdesc:gafe64b44d1a61483a947e44a77a9d3287"><td class="mdescLeft">&#160;</td><td class="mdescRight">Disable D-Cache.  <br /></td></tr>
 146 <tr class="separator:gafe64b44d1a61483a947e44a77a9d3287"><td class="memSeparator" colspan="2">&#160;</td></tr>
 147 <tr class="memitem:ga99fe43c224644881935de135ceaa2dd9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#ga99fe43c224644881935de135ceaa2dd9">SCB_InvalidateDCache</a> (void)</td></tr>
 148 <tr class="memdesc:ga99fe43c224644881935de135ceaa2dd9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Invalidate D-Cache.  <br /></td></tr>
 149 <tr class="separator:ga99fe43c224644881935de135ceaa2dd9"><td class="memSeparator" colspan="2">&#160;</td></tr>
 150 <tr class="memitem:gaf5585be5547cc60585d702a6129f4c17"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#gaf5585be5547cc60585d702a6129f4c17">SCB_CleanDCache</a> (void)</td></tr>
 151 <tr class="memdesc:gaf5585be5547cc60585d702a6129f4c17"><td class="mdescLeft">&#160;</td><td class="mdescRight">Clean D-Cache.  <br /></td></tr>
 152 <tr class="separator:gaf5585be5547cc60585d702a6129f4c17"><td class="memSeparator" colspan="2">&#160;</td></tr>
 153 <tr class="memitem:ga5b22ca58709fadc326da83197a2f28bb"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#ga5b22ca58709fadc326da83197a2f28bb">SCB_CleanInvalidateDCache</a> (void)</td></tr>
 154 <tr class="memdesc:ga5b22ca58709fadc326da83197a2f28bb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Clean &amp; Invalidate D-Cache.  <br /></td></tr>
 155 <tr class="separator:ga5b22ca58709fadc326da83197a2f28bb"><td class="memSeparator" colspan="2">&#160;</td></tr>
 156 <tr class="memitem:ga31c2439722ab4dbd0c67b196e3377ca7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#ga31c2439722ab4dbd0c67b196e3377ca7">SCB_InvalidateDCache_by_Addr</a> (volatile void *addr, int32_t dsize)</td></tr>
 157 <tr class="memdesc:ga31c2439722ab4dbd0c67b196e3377ca7"><td class="mdescLeft">&#160;</td><td class="mdescRight">D-Cache Invalidate by address.  <br /></td></tr>
 158 <tr class="separator:ga31c2439722ab4dbd0c67b196e3377ca7"><td class="memSeparator" colspan="2">&#160;</td></tr>
 159 <tr class="memitem:gabc9e51347dca344c72948c3dba0364fd"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#gabc9e51347dca344c72948c3dba0364fd">SCB_CleanDCache_by_Addr</a> (volatile void *addr, int32_t dsize)</td></tr>
 160 <tr class="memdesc:gabc9e51347dca344c72948c3dba0364fd"><td class="mdescLeft">&#160;</td><td class="mdescRight">D-Cache Clean by address.  <br /></td></tr>
 161 <tr class="separator:gabc9e51347dca344c72948c3dba0364fd"><td class="memSeparator" colspan="2">&#160;</td></tr>
 162 <tr class="memitem:ga83fe294bcc60d3c4f1c279f13477dda7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Dcache__functions__m7.html#ga83fe294bcc60d3c4f1c279f13477dda7">SCB_CleanInvalidateDCache_by_Addr</a> (volatile void *addr, int32_t dsize)</td></tr>
 163 <tr class="memdesc:ga83fe294bcc60d3c4f1c279f13477dda7"><td class="mdescLeft">&#160;</td><td class="mdescRight">D-Cache Clean and Invalidate by address.  <br /></td></tr>
 164 <tr class="separator:ga83fe294bcc60d3c4f1c279f13477dda7"><td class="memSeparator" colspan="2">&#160;</td></tr>
 165 </table>
 166 <a name="details" id="details"></a><h2 class="groupheader">Description</h2>
 167 <p>Functions for the level-1 data cache. </p>
 168 <p>// close ICache functions</p>
 169 <h2 class="groupheader">Function Documentation</h2>
 170 <a id="gaf5585be5547cc60585d702a6129f4c17" name="gaf5585be5547cc60585d702a6129f4c17"></a>
 171 <h2 class="memtitle"><span class="permalink"><a href="#gaf5585be5547cc60585d702a6129f4c17">&#9670;&#160;</a></span>SCB_CleanDCache()</h2>
 172
 173 <div class="memitem">
 174 <div class="memproto">
 175       <table class="memname">
 176         <tr>
 177           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_CleanDCache </td>
 178           <td>(</td>
 179           <td class="paramtype">void&#160;</td>
 180           <td class="paramname"></td><td>)</td>
 181           <td></td>
 182         </tr>
 183       </table>
 184 </div><div class="memdoc">
 185
 186 <p>Clean D-Cache. </p>
 187 <p>The function cleans the entire data cache. </p>
 188
 189 </div>
 190 </div>
 191 <a id="gabc9e51347dca344c72948c3dba0364fd" name="gabc9e51347dca344c72948c3dba0364fd"></a>
 192 <h2 class="memtitle"><span class="permalink"><a href="#gabc9e51347dca344c72948c3dba0364fd">&#9670;&#160;</a></span>SCB_CleanDCache_by_Addr()</h2>
 193
 194 <div class="memitem">
 195 <div class="memproto">
 196       <table class="memname">
 197         <tr>
 198           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_CleanDCache_by_Addr </td>
 199           <td>(</td>
 200           <td class="paramtype">volatile void *&#160;</td>
 201           <td class="paramname"><em>addr</em>, </td>
 202         </tr>
 203         <tr>
 204           <td class="paramkey"></td>
 205           <td></td>
 206           <td class="paramtype">int32_t&#160;</td>
 207           <td class="paramname"><em>dsize</em>&#160;</td>
 208         </tr>
 209         <tr>
 210           <td></td>
 211           <td>)</td>
 212           <td></td><td></td>
 213         </tr>
 214       </table>
 215 </div><div class="memdoc">
 216
 217 <p>D-Cache Clean by address. </p>
 218 <dl class="params"><dt>Parameters</dt><dd>
 219   <table class="params">
 220     <tr><td class="paramdir">[in]</td><td class="paramname">addr</td><td>address (aligned to 32-byte boundary) </td></tr>
 221     <tr><td class="paramdir">[in]</td><td class="paramname">dsize</td><td>size of memory block (in number of bytes)</td></tr>
 222   </table>
 223   </dd>
 224 </dl>
 225 <p>The function cleans a memory block of size <em>dsize</em> [bytes] starting at address <em>address</em>. The address is aligned to 32-byte boundary. </p>
 226
 227 </div>
 228 </div>
 229 <a id="ga5b22ca58709fadc326da83197a2f28bb" name="ga5b22ca58709fadc326da83197a2f28bb"></a>
 230 <h2 class="memtitle"><span class="permalink"><a href="#ga5b22ca58709fadc326da83197a2f28bb">&#9670;&#160;</a></span>SCB_CleanInvalidateDCache()</h2>
 231
 232 <div class="memitem">
 233 <div class="memproto">
 234       <table class="memname">
 235         <tr>
 236           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_CleanInvalidateDCache </td>
 237           <td>(</td>
 238           <td class="paramtype">void&#160;</td>
 239           <td class="paramname"></td><td>)</td>
 240           <td></td>
 241         </tr>
 242       </table>
 243 </div><div class="memdoc">
 244
 245 <p>Clean &amp; Invalidate D-Cache. </p>
 246 <p>The function cleans and invalidates the entire data cache. </p>
 247
 248 </div>
 249 </div>
 250 <a id="ga83fe294bcc60d3c4f1c279f13477dda7" name="ga83fe294bcc60d3c4f1c279f13477dda7"></a>
 251 <h2 class="memtitle"><span class="permalink"><a href="#ga83fe294bcc60d3c4f1c279f13477dda7">&#9670;&#160;</a></span>SCB_CleanInvalidateDCache_by_Addr()</h2>
 252
 253 <div class="memitem">
 254 <div class="memproto">
 255       <table class="memname">
 256         <tr>
 257           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_CleanInvalidateDCache_by_Addr </td>
 258           <td>(</td>
 259           <td class="paramtype">volatile void *&#160;</td>
 260           <td class="paramname"><em>addr</em>, </td>
 261         </tr>
 262         <tr>
 263           <td class="paramkey"></td>
 264           <td></td>
 265           <td class="paramtype">int32_t&#160;</td>
 266           <td class="paramname"><em>dsize</em>&#160;</td>
 267         </tr>
 268         <tr>
 269           <td></td>
 270           <td>)</td>
 271           <td></td><td></td>
 272         </tr>
 273       </table>
 274 </div><div class="memdoc">
 275
 276 <p>D-Cache Clean and Invalidate by address. </p>
 277 <dl class="params"><dt>Parameters</dt><dd>
 278   <table class="params">
 279     <tr><td class="paramdir">[in]</td><td class="paramname">addr</td><td>address (aligned to 32-byte boundary) </td></tr>
 280     <tr><td class="paramdir">[in]</td><td class="paramname">dsize</td><td>size of memory block (in number of bytes)</td></tr>
 281   </table>
 282   </dd>
 283 </dl>
 284 <p>The function invalidates and cleans a memory block of size <em>dsize</em> [bytes] starting at address <em>address</em>. The address is aligned to 32-byte boundary. </p>
 285
 286 </div>
 287 </div>
 288 <a id="gafe64b44d1a61483a947e44a77a9d3287" name="gafe64b44d1a61483a947e44a77a9d3287"></a>
 289 <h2 class="memtitle"><span class="permalink"><a href="#gafe64b44d1a61483a947e44a77a9d3287">&#9670;&#160;</a></span>SCB_DisableDCache()</h2>
 290
 291 <div class="memitem">
 292 <div class="memproto">
 293       <table class="memname">
 294         <tr>
 295           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_DisableDCache </td>
 296           <td>(</td>
 297           <td class="paramtype">void&#160;</td>
 298           <td class="paramname"></td><td>)</td>
 299           <td></td>
 300         </tr>
 301       </table>
 302 </div><div class="memdoc">
 303
 304 <p>Disable D-Cache. </p>
 305 <p>The function turns off the entire data cache.</p>
 306 <dl class="section note"><dt>Note</dt><dd>When disabling the data cache, you must clean (<a class="el" href="group__Dcache__functions__m7.html#gaf5585be5547cc60585d702a6129f4c17">SCB_CleanDCache</a>) the entire cache to ensure that any dirty data is flushed to external memory. </dd></dl>
 307
 308 </div>
 309 </div>
 310 <a id="ga3861db932100ccb53f994e2cc68ed79c" name="ga3861db932100ccb53f994e2cc68ed79c"></a>
 311 <h2 class="memtitle"><span class="permalink"><a href="#ga3861db932100ccb53f994e2cc68ed79c">&#9670;&#160;</a></span>SCB_EnableDCache()</h2>
 312
 313 <div class="memitem">
 314 <div class="memproto">
 315       <table class="memname">
 316         <tr>
 317           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_EnableDCache </td>
 318           <td>(</td>
 319           <td class="paramtype">void&#160;</td>
 320           <td class="paramname"></td><td>)</td>
 321           <td></td>
 322         </tr>
 323       </table>
 324 </div><div class="memdoc">
 325
 326 <p>Enable D-Cache. </p>
 327 <p>The function turns on the entire data cache. </p><dl class="section note"><dt>Note</dt><dd>Before enabling the data cache, you must invalidate the entire data cache (<a class="el" href="group__Dcache__functions__m7.html#ga99fe43c224644881935de135ceaa2dd9">SCB_InvalidateDCache</a>), because external memory might have changed from when the cache was disabled.</dd>
 328 <dd>
 329 After reset, you must invalidate (<a class="el" href="group__Dcache__functions__m7.html#ga99fe43c224644881935de135ceaa2dd9">SCB_InvalidateDCache</a>) each cache before enabling it. </dd></dl>
 330
 331 </div>
 332 </div>
 333 <a id="ga99fe43c224644881935de135ceaa2dd9" name="ga99fe43c224644881935de135ceaa2dd9"></a>
 334 <h2 class="memtitle"><span class="permalink"><a href="#ga99fe43c224644881935de135ceaa2dd9">&#9670;&#160;</a></span>SCB_InvalidateDCache()</h2>
 335
 336 <div class="memitem">
 337 <div class="memproto">
 338       <table class="memname">
 339         <tr>
 340           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_InvalidateDCache </td>
 341           <td>(</td>
 342           <td class="paramtype">void&#160;</td>
 343           <td class="paramname"></td><td>)</td>
 344           <td></td>
 345         </tr>
 346       </table>
 347 </div><div class="memdoc">
 348
 349 <p>Invalidate D-Cache. </p>
 350 <p>The function invalidates the entire data cache.</p>
 351 <dl class="section note"><dt>Note</dt><dd>After reset, you must invalidate each cache before enabling (<a class="el" href="group__Dcache__functions__m7.html#ga3861db932100ccb53f994e2cc68ed79c">SCB_EnableDCache</a>) it. </dd></dl>
 352
 353 </div>
 354 </div>
 355 <a id="ga31c2439722ab4dbd0c67b196e3377ca7" name="ga31c2439722ab4dbd0c67b196e3377ca7"></a>
 356 <h2 class="memtitle"><span class="permalink"><a href="#ga31c2439722ab4dbd0c67b196e3377ca7">&#9670;&#160;</a></span>SCB_InvalidateDCache_by_Addr()</h2>
 357
 358 <div class="memitem">
 359 <div class="memproto">
 360       <table class="memname">
 361         <tr>
 362           <td class="memname"><a class="el" href="group__compiler__conntrol__gr.html#gab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void SCB_InvalidateDCache_by_Addr </td>
 363           <td>(</td>
 364           <td class="paramtype">volatile void *&#160;</td>
 365           <td class="paramname"><em>addr</em>, </td>
 366         </tr>
 367         <tr>
 368           <td class="paramkey"></td>
 369           <td></td>
 370           <td class="paramtype">int32_t&#160;</td>
 371           <td class="paramname"><em>dsize</em>&#160;</td>
 372         </tr>
 373         <tr>
 374           <td></td>
 375           <td>)</td>
 376           <td></td><td></td>
 377         </tr>
 378       </table>
 379 </div><div class="memdoc">
 380
 381 <p>D-Cache Invalidate by address. </p>
 382 <dl class="params"><dt>Parameters</dt><dd>
 383   <table class="params">
 384     <tr><td class="paramdir">[in]</td><td class="paramname">addr</td><td>address (aligned to 32-byte boundary) </td></tr>
 385     <tr><td class="paramdir">[in]</td><td class="paramname">dsize</td><td>size of memory block (in number of bytes)</td></tr>
 386   </table>
 387   </dd>
 388 </dl>
 389 <p>The function invalidates a memory block of size <em>dsize</em> [bytes] starting at address <em>address</em>. The address is aligned to 32-byte boundary. </p>
 390
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