425 lines
21 KiB
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425 lines
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<a href="#groups">Modules</a> |
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<a href="#func-members">Functions</a> </div>
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<div class="headertitle">
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<div class="title">WWDG<div class="ingroups"><a class="el" href="group___s_t_m32_f4xx___std_periph___driver.html">STM32F4xx_StdPeriph_Driver</a></div></div> </div>
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</div><!--header-->
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<div class="contents">
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<p>WWDG driver modules.
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<a href="#details">More...</a></p>
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<div class="dynheader">
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Collaboration diagram for WWDG:</div>
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<center><table><tr><td><img src="group___w_w_d_g.png" border="0" alt="" usemap="#group______w__w__d__g"/>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="groups"></a>
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Modules</h2></td></tr>
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<tr class="memitem:group___w_w_d_g___exported___constants"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___w_w_d_g___exported___constants.html">WWDG_Exported_Constants</a></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:group___w_w_d_g___private___functions"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___w_w_d_g___private___functions.html">WWDG_Private_Functions</a></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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Macros</h2></td></tr>
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<tr class="memitem:gab6dcdf2385dd7317ec775e146cff40ca"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gab6dcdf2385dd7317ec775e146cff40ca"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>WWDG_OFFSET</b>   (WWDG_BASE - <a class="el" href="group___peripheral__memory__map.html#ga9171f49478fa86d932f89e78e73b88b0">PERIPH_BASE</a>)</td></tr>
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<tr class="separator:gab6dcdf2385dd7317ec775e146cff40ca"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga3e0f9d9f7f69a6d133bba721e25aca4a"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga3e0f9d9f7f69a6d133bba721e25aca4a"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>CFR_OFFSET</b>   (WWDG_OFFSET + 0x04)</td></tr>
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<tr class="separator:ga3e0f9d9f7f69a6d133bba721e25aca4a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga97c9005823520f5aaefe211923b48215"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga97c9005823520f5aaefe211923b48215"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>EWI_BitNumber</b>   0x09</td></tr>
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<tr class="separator:ga97c9005823520f5aaefe211923b48215"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaa48804210cea547f0e0f4ca49c44fc94"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gaa48804210cea547f0e0f4ca49c44fc94"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>CFR_EWI_BB</b>   (<a class="el" href="group___peripheral__memory__map.html#gaed7efc100877000845c236ccdc9e144a">PERIPH_BB_BASE</a> + (CFR_OFFSET * 32) + (EWI_BitNumber * 4))</td></tr>
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<tr class="separator:gaa48804210cea547f0e0f4ca49c44fc94"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gab500f6978b5964c1de28e59e7ac98012"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gab500f6978b5964c1de28e59e7ac98012"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>CFR_WDGTB_MASK</b>   ((uint32_t)0xFFFFFE7F)</td></tr>
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<tr class="separator:gab500f6978b5964c1de28e59e7ac98012"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gab99b48f5d1720c22c2ef8d8a5f934a11"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gab99b48f5d1720c22c2ef8d8a5f934a11"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>CFR_W_MASK</b>   ((uint32_t)0xFFFFFF80)</td></tr>
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<tr class="memitem:ga7d4a1875576135ebdd354a816679d45c"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga7d4a1875576135ebdd354a816679d45c"></a>
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#define </td><td class="memItemRight" valign="bottom"><b>BIT_MASK</b>   ((uint8_t)0x7F)</td></tr>
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<tr class="separator:ga7d4a1875576135ebdd354a816679d45c"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:ga7130f4dc861b9234b62e73f9f57f89a1"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___w_w_d_g.html#ga7130f4dc861b9234b62e73f9f57f89a1">WWDG_DeInit</a> (void)</td></tr>
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<tr class="memdesc:ga7130f4dc861b9234b62e73f9f57f89a1"><td class="mdescLeft"> </td><td class="mdescRight">Deinitializes the WWDG peripheral registers to their default reset values. <a href="#ga7130f4dc861b9234b62e73f9f57f89a1">More...</a><br /></td></tr>
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<tr class="separator:ga7130f4dc861b9234b62e73f9f57f89a1"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gafeaa2b52c31ba7baca7eb61d2d42e07b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___w_w_d_g.html#gafeaa2b52c31ba7baca7eb61d2d42e07b">WWDG_SetPrescaler</a> (uint32_t WWDG_Prescaler)</td></tr>
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<tr class="memdesc:gafeaa2b52c31ba7baca7eb61d2d42e07b"><td class="mdescLeft"> </td><td class="mdescRight">Sets the WWDG Prescaler. <a href="#gafeaa2b52c31ba7baca7eb61d2d42e07b">More...</a><br /></td></tr>
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<tr class="separator:gafeaa2b52c31ba7baca7eb61d2d42e07b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaf44a7bf8bf6b11b41cd89ff521fdd5a5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___w_w_d_g.html#gaf44a7bf8bf6b11b41cd89ff521fdd5a5">WWDG_SetWindowValue</a> (uint8_t WindowValue)</td></tr>
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<tr class="memdesc:gaf44a7bf8bf6b11b41cd89ff521fdd5a5"><td class="mdescLeft"> </td><td class="mdescRight">Sets the WWDG window value. <a href="#gaf44a7bf8bf6b11b41cd89ff521fdd5a5">More...</a><br /></td></tr>
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<tr class="separator:gaf44a7bf8bf6b11b41cd89ff521fdd5a5"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gac8af66ea5254d3d78b60b9b7c7f29521"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___w_w_d_g.html#gac8af66ea5254d3d78b60b9b7c7f29521">WWDG_EnableIT</a> (void)</td></tr>
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<tr class="memdesc:gac8af66ea5254d3d78b60b9b7c7f29521"><td class="mdescLeft"> </td><td class="mdescRight">Enables the WWDG Early Wakeup interrupt(EWI). <a href="#gac8af66ea5254d3d78b60b9b7c7f29521">More...</a><br /></td></tr>
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<tr class="separator:gac8af66ea5254d3d78b60b9b7c7f29521"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga6e44cc35f133b28b9ad861f459bf8d76"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___w_w_d_g.html#ga6e44cc35f133b28b9ad861f459bf8d76">WWDG_SetCounter</a> (uint8_t Counter)</td></tr>
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<tr class="memdesc:ga6e44cc35f133b28b9ad861f459bf8d76"><td class="mdescLeft"> </td><td class="mdescRight">Sets the WWDG counter value. <a href="#ga6e44cc35f133b28b9ad861f459bf8d76">More...</a><br /></td></tr>
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<tr class="separator:ga6e44cc35f133b28b9ad861f459bf8d76"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga10dc2554d0b504b5472e3ecf0f02a9e6"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___w_w_d_g.html#ga10dc2554d0b504b5472e3ecf0f02a9e6">WWDG_Enable</a> (uint8_t Counter)</td></tr>
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<tr class="memdesc:ga10dc2554d0b504b5472e3ecf0f02a9e6"><td class="mdescLeft"> </td><td class="mdescRight">Enables WWDG and load the counter value. <a href="#ga10dc2554d0b504b5472e3ecf0f02a9e6">More...</a><br /></td></tr>
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<tr class="separator:ga10dc2554d0b504b5472e3ecf0f02a9e6"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga7df4882d45918b9b8249dfca1e44fabc"><td class="memItemLeft" align="right" valign="top">FlagStatus </td><td class="memItemRight" valign="bottom"><a class="el" href="group___w_w_d_g.html#ga7df4882d45918b9b8249dfca1e44fabc">WWDG_GetFlagStatus</a> (void)</td></tr>
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<tr class="memdesc:ga7df4882d45918b9b8249dfca1e44fabc"><td class="mdescLeft"> </td><td class="mdescRight">Checks whether the Early Wakeup interrupt flag is set or not. <a href="#ga7df4882d45918b9b8249dfca1e44fabc">More...</a><br /></td></tr>
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<tr class="separator:ga7df4882d45918b9b8249dfca1e44fabc"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gabd2b5a6317c2e1a3ab0795838ce59dd2"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___w_w_d_g.html#gabd2b5a6317c2e1a3ab0795838ce59dd2">WWDG_ClearFlag</a> (void)</td></tr>
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<tr class="memdesc:gabd2b5a6317c2e1a3ab0795838ce59dd2"><td class="mdescLeft"> </td><td class="mdescRight">Clears Early Wakeup interrupt flag. <a href="#gabd2b5a6317c2e1a3ab0795838ce59dd2">More...</a><br /></td></tr>
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<tr class="separator:gabd2b5a6317c2e1a3ab0795838ce59dd2"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<p>WWDG driver modules. </p>
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<h2 class="groupheader">Function Documentation</h2>
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<a class="anchor" id="gabd2b5a6317c2e1a3ab0795838ce59dd2"></a>
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<div class="memitem">
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<td class="memname">void WWDG_ClearFlag </td>
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<td>(</td>
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<td class="paramtype">void </td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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</div><div class="memdoc">
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<p>Clears Early Wakeup interrupt flag. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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</dl>
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<a class="anchor" id="ga7130f4dc861b9234b62e73f9f57f89a1"></a>
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<td class="memname">void WWDG_DeInit </td>
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<td>(</td>
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<td class="paramtype">void </td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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</tr>
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</div><div class="memdoc">
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<p>Deinitializes the WWDG peripheral registers to their default reset values. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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</dl>
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<p><div class="dynheader">
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Here is the call graph for this function:</div>
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<div class="dyncontent">
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<div class="center"><img src="group___w_w_d_g_ga7130f4dc861b9234b62e73f9f57f89a1_cgraph.png" border="0" usemap="#group___w_w_d_g_ga7130f4dc861b9234b62e73f9f57f89a1_cgraph" alt=""/></div>
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<map name="group___w_w_d_g_ga7130f4dc861b9234b62e73f9f57f89a1_cgraph" id="group___w_w_d_g_ga7130f4dc861b9234b62e73f9f57f89a1_cgraph">
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<area shape="rect" id="node2" href="group___r_c_c.html#gab197ae4369c10b92640a733b40ed2801" title="Forces or releases Low Speed APB (APB1) peripheral reset. " alt="" coords="160,5,348,32"/></map>
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</div>
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</p>
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</div>
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</div>
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<a class="anchor" id="ga10dc2554d0b504b5472e3ecf0f02a9e6"></a>
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<td class="memname">void WWDG_Enable </td>
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<td>(</td>
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<td class="paramtype">uint8_t </td>
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<td class="paramname"><em>Counter</em></td><td>)</td>
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<td></td>
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</div><div class="memdoc">
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<p>Enables WWDG and load the counter value. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">Counter</td><td>specifies the watchdog counter value. This parameter must be a number between 0x40 and 0x7F (to prevent generating an immediate reset) </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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</dl>
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</div>
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</div>
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<a class="anchor" id="gac8af66ea5254d3d78b60b9b7c7f29521"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void WWDG_EnableIT </td>
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<td>(</td>
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<td class="paramtype">void </td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Enables the WWDG Early Wakeup interrupt(EWI). </p>
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<dl class="section note"><dt>Note</dt><dd>Once enabled this interrupt cannot be disabled except by a system reset. </dd></dl>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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</dl>
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</div>
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</div>
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<a class="anchor" id="ga7df4882d45918b9b8249dfca1e44fabc"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">FlagStatus WWDG_GetFlagStatus </td>
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<td>(</td>
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<td class="paramtype">void </td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Checks whether the Early Wakeup interrupt flag is set or not. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">The</td><td>new state of the Early Wakeup interrupt flag (SET or RESET) </td></tr>
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</table>
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</dd>
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</dl>
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</div>
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</div>
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<a class="anchor" id="ga6e44cc35f133b28b9ad861f459bf8d76"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void WWDG_SetCounter </td>
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<td>(</td>
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<td class="paramtype">uint8_t </td>
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<td class="paramname"><em>Counter</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Sets the WWDG counter value. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">Counter</td><td>specifies the watchdog counter value. This parameter must be a number between 0x40 and 0x7F (to prevent generating an immediate reset) </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">None</td><td></td></tr>
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</table>
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</dd>
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</dl>
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</div>
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</div>
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<a class="anchor" id="gafeaa2b52c31ba7baca7eb61d2d42e07b"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void WWDG_SetPrescaler </td>
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<td>(</td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>WWDG_Prescaler</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Sets the WWDG Prescaler. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">WWDG_Prescaler</td><td>specifies the WWDG Prescaler. This parameter can be one of the following values: <ul>
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<li>WWDG_Prescaler_1: WWDG counter clock = (PCLK1/4096)/1 </li>
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<li>WWDG_Prescaler_2: WWDG counter clock = (PCLK1/4096)/2 </li>
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<li>WWDG_Prescaler_4: WWDG counter clock = (PCLK1/4096)/4 </li>
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<li>WWDG_Prescaler_8: WWDG counter clock = (PCLK1/4096)/8 </li>
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</ul>
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</td></tr>
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</table>
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</dd>
|
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
|
|
<table class="retval">
|
|
<tr><td class="paramname">None</td><td></td></tr>
|
|
</table>
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|
</dd>
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</dl>
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</div>
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</div>
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<a class="anchor" id="gaf44a7bf8bf6b11b41cd89ff521fdd5a5"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void WWDG_SetWindowValue </td>
|
|
<td>(</td>
|
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<td class="paramtype">uint8_t </td>
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<td class="paramname"><em>WindowValue</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Sets the WWDG window value. </p>
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
|
<table class="params">
|
|
<tr><td class="paramname">WindowValue</td><td>specifies the window value to be compared to the downcounter. This parameter value must be lower than 0x80. </td></tr>
|
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</table>
|
|
</dd>
|
|
</dl>
|
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<dl class="retval"><dt>Return values</dt><dd>
|
|
<table class="retval">
|
|
<tr><td class="paramname">None</td><td></td></tr>
|
|
</table>
|
|
</dd>
|
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</dl>
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</div>
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</div>
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