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diff --git a/CMSIS/Documentation/Pack/html/_algorithm_func.html b/CMSIS/Documentation/Pack/html/_algorithm_func.html new file mode 100644 index 0000000..641c89e --- /dev/null +++ b/CMSIS/Documentation/Pack/html/_algorithm_func.html @@ -0,0 +1,422 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml"> +<head> +<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> +<meta http-equiv="X-UA-Compatible" content="IE=9"/> +<title>Algorithm Functions</title> +<title>CMSIS-Pack: Algorithm Functions</title> +<link href="tabs.css" rel="stylesheet" type="text/css"/> +<link href="cmsis.css" rel="stylesheet" type="text/css" /> +<script type="text/javascript" src="jquery.js"></script> +<script type="text/javascript" src="dynsections.js"></script> +<script type="text/javascript" src="printComponentTabs.js"></script> +<link href="navtree.css" rel="stylesheet" type="text/css"/> +<script type="text/javascript" src="resize.js"></script> +<script type="text/javascript" src="navtree.js"></script> +<script type="text/javascript"> + $(document).ready(initResizable); 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+</script> + <div id="navrow1" class="tabs"> + <ul class="tablist"> + <li><a href="index.html"><span>Main Page</span></a></li> + <li class="current"><a href="pages.html"><span>Usage and Description</span></a></li> + <li> + <div id="MSearchBox" class="MSearchBoxInactive"> + <span class="left"> + <img id="MSearchSelect" src="search/mag_sel.png" + onmouseover="return searchBox.OnSearchSelectShow()" + onmouseout="return searchBox.OnSearchSelectHide()" + alt=""/> + <input type="text" id="MSearchField" value="Search" accesskey="S" + onfocus="searchBox.OnSearchFieldFocus(true)" + onblur="searchBox.OnSearchFieldFocus(false)" + onkeyup="searchBox.OnSearchFieldChange(event)"/> + </span><span class="right"> + <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a> + </span> + </div> + </li> + </ul> + </div> +</div><!-- top --> +<div id="side-nav" class="ui-resizable side-nav-resizable"> + <div id="nav-tree"> + <div id="nav-tree-contents"> + <div id="nav-sync" class="sync"></div> + </div> + </div> + <div id="splitbar" style="-moz-user-select:none;" + class="ui-resizable-handle"> + </div> +</div> +<script type="text/javascript"> +$(document).ready(function(){initNavTree('_algorithm_func.html','');}); +</script> +<div id="doc-content"> +<!-- window showing the filter options --> +<div id="MSearchSelectWindow" + onmouseover="return searchBox.OnSearchSelectShow()" + onmouseout="return searchBox.OnSearchSelectHide()" + onkeydown="return searchBox.OnSearchSelectKey(event)"> +<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Pages</a></div> + +<!-- iframe showing the search results (closed by default) --> +<div id="MSearchResultsWindow"> +<iframe src="javascript:void(0)" frameborder="0" + name="MSearchResults" id="MSearchResults"> +</iframe> +</div> + +<div class="header"> + <div class="headertitle"> +<div class="title">Algorithm Functions </div> </div> +</div><!--header--> +<div class="contents"> +<div class="textblock"><p>Blank Check</p> +<p>The following functions are available for creating new Flash programming algorithms: </p> +<table class="doxtable"> +<tr> +<th>Function Name </th><th>Indication</th><th>Description</th></tr> +<tr> +<td><a class="el" href="_algorithm_func.html#BlankCheck">BlankCheck</a> </td><td>optional </td><td>Check and compare patterns. </td></tr> +<tr> +<td><a class="el" href="_algorithm_func.html#EraseChip">EraseChip</a> </td><td>optional </td><td>Delete entire Flash memory content. </td></tr> +<tr> +<td><a class="el" href="_algorithm_func.html#EraseSector">EraseSector</a></td><td>mandatory </td><td>Delete Flash memory content of a specific sector. </td></tr> +<tr> +<td><a class="el" href="_algorithm_func.html#Init">Init</a> </td><td>mandatory </td><td>Initialize and prepare device for Flash programming. </td></tr> +<tr> +<td><a class="el" href="_algorithm_func.html#ProgramPage">ProgramPage</a></td><td>mandatory </td><td>Write the application into the Flash memory. </td></tr> +<tr> +<td><a class="el" href="_algorithm_func.html#UnInit">UnInit</a> </td><td>mandatory </td><td>De-initialize the microcontroller after one of the Flash programming steps. </td></tr> +<tr> +<td><a class="el" href="_algorithm_func.html#Verify">Verify</a> </td><td>optional </td><td>Compare Flash memory content with the program code. </td></tr> +</table> +<p> </p> +<hr/> +<h1><a class="anchor" id="BlankCheck"></a> +BlankCheck</h1> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> BlankCheck (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> adr, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> sz, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> pat);</div> +</div><!-- fragment --> <dl class="params"><dt>Parameters</dt><dd> + <table class="params"> + <tr><td class="paramname">adr</td><td>Block start address </td></tr> + <tr><td class="paramname">sz</td><td>Block size in bytes </td></tr> + <tr><td class="paramname">pat</td><td>Pattern to compare </td></tr> + </table> + </dd> +</dl> +<dl class="section return"><dt>Returns</dt><dd>status information:<ul> +<li>0 when the block content is equal to the pattern pat.</li> +<li>1 when the block content differs from the pattern pat.</li> +</ul> +</dd></dl> +<p>The function <b>BlankCheck</b> can be used to check whether the specified block is empty, or whether the content is equal to a specific pattern defined in the argument <em>pat</em>.</p> +<p>The argument <em>adr</em> specifies the start address of the block that is to be verified.</p> +<p>The argument <em>sz</em> specifies the size of the block that is to be verified.</p> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> BlankCheck (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> adr, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> sz, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> pat) {</div> +<div class="line"> </div> +<div class="line"> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> i, j, k;</div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Recalculate address for External SDRAM addresses</span></div> +<div class="line"> <span class="keywordflow">if</span> (adr >= SDRAM_START)</div> +<div class="line"> adr = adr - SDRAM_START + USER_OFFSET;</div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">for</span> (i = 0; i < sz; i += 256) {</div> +<div class="line"> <span class="comment">// Read 256 bytes</span></div> +<div class="line"> ReadPage_HW (adr+i, 256, &rd_buf[0]);</div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Determine size to compare</span></div> +<div class="line"> <span class="keywordflow">if</span> ((sz-i) >= 256) k = 256;</div> +<div class="line"> <span class="keywordflow">else</span> k = (sz-i);</div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Check up to 256 bytes if equal to pattern "pat"</span></div> +<div class="line"> <span class="keywordflow">for</span> (j = 0; j < k; j++)</div> +<div class="line"> <span class="keywordflow">if</span> (rd_buf[j] != pat) <span class="keywordflow">return</span> (1); <span class="comment">// Memory is not blank</span></div> +<div class="line"> }</div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">return</span> (0); <span class="comment">// Memory is blank</span></div> +<div class="line">}</div> +</div><!-- fragment --><p> </p> +<hr/> +<h1><a class="anchor" id="EraseChip"></a> +EraseChip</h1> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> EraseChip (<span class="keywordtype">void</span>);</div> +</div><!-- fragment --> <dl class="section return"><dt>Returns</dt><dd>status information:<ul> +<li>0 on success.</li> +<li>1 on failure.</li> +</ul> +</dd></dl> +<p>The function <b>EraseChip</b> deletes the content of the entire Flash memory. It is invoked whenever the uVision menu <b>Flash</b> - <b>Erase</b> is used, or whenever an attempt is made to download the program to Flash and the option <b>Erase Full Chip</b> has been set in the <b>Flash Download Setup</b> dialog. If this function is missing in the Flash Programming Algorithm, the <a class="el" href="_algorithm_func.html#EraseSector">EraseSector</a> function is executed until the entire content of the Flash memory area has been deleted.</p> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> EraseChip (<span class="keywordtype">void</span>) {</div> +<div class="line"> </div> +<div class="line"> FLASH->CR |= FLASH_MER; <span class="comment">// Mass Erase Enabled</span></div> +<div class="line"> FLASH->CR |= FLASH_STRT; <span class="comment">// Start Erase</span></div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">while</span> (FLASH->SR & FLASH_BSY) {</div> +<div class="line"> IWDG->KR = 0xAAAA; <span class="comment">// Reload IWDG</span></div> +<div class="line"> }</div> +<div class="line"> </div> +<div class="line"> FLASH->CR &= ~FLASH_MER; <span class="comment">// Mass Erase Disabled</span></div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">return</span> (0); <span class="comment">// Done</span></div> +<div class="line">}</div> +</div><!-- fragment --><p> </p> +<hr/> +<h1><a class="anchor" id="EraseSector"></a> +EraseSector</h1> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> EraseSector (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> adr);</div> +</div><!-- fragment --> <dl class="params"><dt>Parameters</dt><dd> + <table class="params"> + <tr><td class="paramname">adr</td><td>Sector address </td></tr> + </table> + </dd> +</dl> +<dl class="section return"><dt>Returns</dt><dd>status information:<ul> +<li>0 on success.</li> +<li>1 on failure.</li> +</ul> +</dd></dl> +<p>The function <b>EraseSector</b> deletes the content of the sector starting at the address specified by the argument <em>adr</em>. The function is invoked whenever the uVision menu <b>Flash</b> - <b>Erase</b> is used, or whenever an attempt is made to download the program to Flash and the option <b>Erase Sectors</b> has been set in the <b>Flash Download Setup</b> dialog.</p> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> EraseSector (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> adr) {</div> +<div class="line"> </div> +<div class="line"> FLASH->CR |= FLASH_PER; <span class="comment">// Page Erase Enabled</span></div> +<div class="line"> FLASH->AR = adr; <span class="comment">// Page Address</span></div> +<div class="line"> FLASH->CR |= FLASH_STRT; <span class="comment">// Start Erase</span></div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">while</span> (FLASH->SR & FLASH_BSY) {</div> +<div class="line"> IWDG->KR = 0xAAAA; <span class="comment">// Reload IWDG</span></div> +<div class="line"> }</div> +<div class="line"> </div> +<div class="line"> FLASH->CR &= ~FLASH_PER; <span class="comment">// Page Erase Disabled</span></div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">return</span> (0); <span class="comment">// Done</span></div> +<div class="line">}</div> +</div><!-- fragment --><p> </p> +<hr/> +<h1><a class="anchor" id="Init"></a> +Init</h1> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> Init (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> adr, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> clk, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> fnc);</div> +</div><!-- fragment --> <dl class="params"><dt>Parameters</dt><dd> + <table class="params"> + <tr><td class="paramname">adr</td><td>Device base address </td></tr> + <tr><td class="paramname">clk</td><td>Clock frequency (Hz) </td></tr> + <tr><td class="paramname">fnc</td><td>Function code </td></tr> + </table> + </dd> +</dl> +<dl class="section return"><dt>Returns</dt><dd>status information:<ul> +<li>0 on success.</li> +<li>1 on failure.</li> +</ul> +</dd></dl> +<p>The function <b>Init</b> initializes the microcontroller for Flash programming. It is invoked whenever an attempt is made to download the program to Flash.</p> +<p>The argument <em>adr</em> specifies the base address of the device.</p> +<p>The argument <em>clk</em> specifies the clock frequency for prgramming the device.</p> +<p>The argument <em>fnc</em> is a number:</p> +<ul> +<li>1 stands for Erase.</li> +<li>2 stands for Program.</li> +<li>3 stands for Verify.</li> +</ul> +<p>Thus, different initialization sections can be implemented for each individual Flash programming step.</p> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> Init (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> adr, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> clk, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> fnc) {</div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Zero Wait State</span></div> +<div class="line"> FLASH->ACR = 0x00000000;</div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Unlock Flash</span></div> +<div class="line"> FLASH->KEYR = FLASH_KEY1;</div> +<div class="line"> FLASH->KEYR = FLASH_KEY2;</div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Test if IWDG is running (IWDG in HW mode)</span></div> +<div class="line"> <span class="keywordflow">if</span> ((FLASH->OBR & 0x04) == 0x00) {</div> +<div class="line"> <span class="comment">// Set IWDG time out to ~32.768 second</span></div> +<div class="line"> IWDG->KR = 0x5555; <span class="comment">// Enable write access to IWDG_PR and IWDG_RLR</span></div> +<div class="line"> IWDG->PR = 0x06; <span class="comment">// Set prescaler to 256</span></div> +<div class="line"> IWDG->RLR = 4095; <span class="comment">// Set reload value to 4095</span></div> +<div class="line"> }</div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">return</span> (0);</div> +<div class="line">}</div> +</div><!-- fragment --><p> </p> +<hr/> +<h1><a class="anchor" id="ProgramPage"></a> +ProgramPage</h1> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> ProgramPage (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> adr, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> sz, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf);</div> +</div><!-- fragment --> <dl class="params"><dt>Parameters</dt><dd> + <table class="params"> + <tr><td class="paramname">adr</td><td>Page start address </td></tr> + <tr><td class="paramname">sz</td><td>Page size </td></tr> + <tr><td class="paramname">buf</td><td>Data to be written </td></tr> + </table> + </dd> +</dl> +<dl class="section return"><dt>Returns</dt><dd>status information:<ul> +<li>0 on success.</li> +<li>1 on failure.</li> +</ul> +</dd></dl> +<p>The function <b>ProgramPage</b> is used to write code into the Flash memory. It is invoked whenever an attempt is made to download a program to Flash.</p> +<p>The argument <em>adr</em> specifies the start address of the page that is to be programmed.</p> +<p>The argument <em>sz</em> specifies the size of the page that is to be programmed.</p> +<p>The argument <em>buf</em> points to the buffer containing the data to be programmed.</p> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> ProgramPage (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> adr, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> sz, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf) {</div> +<div class="line"> </div> +<div class="line"> sz = (sz + 1) & ~1; <span class="comment">// Adjust size for Half Words</span></div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">while</span> (sz) {</div> +<div class="line"> </div> +<div class="line"> FLASH->CR |= FLASH_PG; <span class="comment">// Programming Enabled</span></div> +<div class="line"> </div> +<div class="line"> M16(adr) = *((<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> *)buf); <span class="comment">// Program Half Word</span></div> +<div class="line"> <span class="keywordflow">while</span> (FLASH->SR & FLASH_BSY);</div> +<div class="line"> </div> +<div class="line"> FLASH->CR &= ~FLASH_PG; <span class="comment">// Programming Disabled</span></div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Check for Errors</span></div> +<div class="line"> <span class="keywordflow">if</span> (FLASH->SR & (FLASH_PGERR | FLASH_WRPRTERR)) {</div> +<div class="line"> FLASH->SR |= FLASH_PGERR | FLASH_WRPRTERR;</div> +<div class="line"> <span class="keywordflow">return</span> (1); <span class="comment">// Failed</span></div> +<div class="line"> }</div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Go to next Half Word</span></div> +<div class="line"> adr += 2;</div> +<div class="line"> buf += 2;</div> +<div class="line"> sz -= 2;</div> +<div class="line"> </div> +<div class="line"> }</div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">return</span> (0); <span class="comment">// Done</span></div> +<div class="line">}</div> +</div><!-- fragment --><p> </p> +<hr/> +<h1><a class="anchor" id="UnInit"></a> +UnInit</h1> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> UnInit (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> fnc);</div> +</div><!-- fragment --> <dl class="params"><dt>Parameters</dt><dd> + <table class="params"> + <tr><td class="paramname">fnc</td><td>Function code </td></tr> + </table> + </dd> +</dl> +<dl class="section return"><dt>Returns</dt><dd>status information:<ul> +<li>0 on success.</li> +<li>1 on failure.</li> +</ul> +</dd></dl> +<p>The function <b>UnInit</b> de-initializes the microcontroller and is invoked at the end of an erasing, programming, or verifying step.</p> +<p>The argument <em>fnc</em> is a number:</p> +<ul> +<li>1 stands for Erase.</li> +<li>2 stands for Program.</li> +<li>3 stands for Verify.</li> +</ul> +<p>Thus, different de-initialization sections can be implemented for each individual Flash programming step.</p> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> UnInit (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> fnc) {</div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Lock Flash</span></div> +<div class="line"> FLASH->CR |= FLASH_LOCK;</div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">return</span> (0);</div> +<div class="line">}</div> +</div><!-- fragment --><p> </p> +<hr/> +<h1><a class="anchor" id="Verify"></a> +Verify</h1> +<div class="fragment"><div class="line"><span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> Verify (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> adr, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> sz, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf);</div> +</div><!-- fragment --> <dl class="params"><dt>Parameters</dt><dd> + <table class="params"> + <tr><td class="paramname">adr</td><td>Start address </td></tr> + <tr><td class="paramname">sz</td><td>Size in bytes </td></tr> + <tr><td class="paramname">buf</td><td>Data to be compared </td></tr> + </table> + </dd> +</dl> +<dl class="section return"><dt>Returns</dt><dd>status information:<ul> +<li>the sum of (adr+sz) - on success.</li> +<li>any other number - on failure, and represents the failing address.</li> +</ul> +</dd></dl> +<p>The function <b>Verify</b> compares the content of the Flash memory with the program code <em>*buf</em>.</p> +<p>The argument <em>adr</em> specifies the start address for the verification.</p> +<p>The argument <em>sz</em> specifies the size of the verification.</p> +<p>The argument <em>buf</em> points to the buffer containing the data to be verified.</p> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line"><span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> Verify (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> adr, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> sz, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf) {</div> +<div class="line"> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> i, adr_dest, in_page_ofs;</div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">if</span> (adr < block_size) { <span class="comment">// Verifying 2-nd level bootloader data</span></div> +<div class="line"> adr_dest = adr + page_usr_size; <span class="comment">// skip page 0 of block 0</span></div> +<div class="line"> } <span class="keywordflow">else</span> { <span class="comment">// Verifying program data</span></div> +<div class="line"> FindBlock(adr, 0);</div> +<div class="line"> adr_dest = nand_block_offset + (adr & (block_size-1));</div> +<div class="line"> }</div> +<div class="line"> in_page_ofs = adr_dest & (page_usr_size-1);</div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">if</span> (ReadPage_HW(adr_dest, page_usr_size, data_buf)) <span class="keywordflow">return</span> (1);</div> +<div class="line"> <span class="keywordflow">for</span> (i=0; i<sz; i++)</div> +<div class="line"> <span class="keywordflow">if</span> (buf[i] != data_buf[i+in_page_ofs])</div> +<div class="line"> <span class="keywordflow">break</span>;</div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">return</span> (adr+i);</div> +<div class="line">}</div> +</div><!-- fragment --> </div></div><!-- contents --> +</div><!-- doc-content --> +<!-- start footer part --> +<div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> + <ul> + <li class="navelem"><a class="el" href="_flash_algorithm.html">Flash Programming Algorithms</a></li> + <li class="footer">Generated on Tue Oct 27 2015 14:35:43 for CMSIS-Pack by ARM Ltd. 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