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<a href="#func-members">Functions</a> </div>
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<div class="title">NOR/SRAM Controller functions<div class="ingroups"><a class="el" href="group___s_t_m32_f4xx___std_periph___driver.html">STM32F4xx_StdPeriph_Driver</a> &raquo; <a class="el" href="group___f_s_m_c.html">FSMC</a> &raquo; <a class="el" href="group___f_s_m_c___private___functions.html">FSMC_Private_Functions</a></div></div> </div>
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<p>NOR/SRAM Controller functions.
<a href="#details">More...</a></p>
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Collaboration diagram for NOR/SRAM Controller functions:</div>
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<center><table><tr><td><img src="group___f_s_m_c___group1.png" border="0" alt="" usemap="#group______f__s__m__c______group1"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gaab3e6648e8a584e73785361ac960eded"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___f_s_m_c___group1.html#gaab3e6648e8a584e73785361ac960eded">FSMC_NORSRAMDeInit</a> (uint32_t FSMC_Bank)</td></tr>
<tr class="memdesc:gaab3e6648e8a584e73785361ac960eded"><td class="mdescLeft">&#160;</td><td class="mdescRight">De-initializes the FSMC NOR/SRAM Banks registers to their default reset values. <a href="#gaab3e6648e8a584e73785361ac960eded">More...</a><br /></td></tr>
<tr class="separator:gaab3e6648e8a584e73785361ac960eded"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga9c27816e8b17394c9ee1ce9298917b4a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___f_s_m_c___group1.html#ga9c27816e8b17394c9ee1ce9298917b4a">FSMC_NORSRAMInit</a> (<a class="el" href="struct_f_s_m_c___n_o_r_s_r_a_m_init_type_def.html">FSMC_NORSRAMInitTypeDef</a> *FSMC_NORSRAMInitStruct)</td></tr>
<tr class="memdesc:ga9c27816e8b17394c9ee1ce9298917b4a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initializes the FSMC NOR/SRAM Banks according to the specified parameters in the FSMC_NORSRAMInitStruct. <a href="#ga9c27816e8b17394c9ee1ce9298917b4a">More...</a><br /></td></tr>
<tr class="separator:ga9c27816e8b17394c9ee1ce9298917b4a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf33e6dfc34f62d16a0cb416de9e83d28"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___f_s_m_c___group1.html#gaf33e6dfc34f62d16a0cb416de9e83d28">FSMC_NORSRAMStructInit</a> (<a class="el" href="struct_f_s_m_c___n_o_r_s_r_a_m_init_type_def.html">FSMC_NORSRAMInitTypeDef</a> *FSMC_NORSRAMInitStruct)</td></tr>
<tr class="memdesc:gaf33e6dfc34f62d16a0cb416de9e83d28"><td class="mdescLeft">&#160;</td><td class="mdescRight">Fills each FSMC_NORSRAMInitStruct member with its default value. <a href="#gaf33e6dfc34f62d16a0cb416de9e83d28">More...</a><br /></td></tr>
<tr class="separator:gaf33e6dfc34f62d16a0cb416de9e83d28"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf943f0f2680168d3a95a3c2c9f3eca2a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___f_s_m_c___group1.html#gaf943f0f2680168d3a95a3c2c9f3eca2a">FSMC_NORSRAMCmd</a> (uint32_t FSMC_Bank, FunctionalState NewState)</td></tr>
<tr class="memdesc:gaf943f0f2680168d3a95a3c2c9f3eca2a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Enables or disables the specified NOR/SRAM Memory Bank. <a href="#gaf943f0f2680168d3a95a3c2c9f3eca2a">More...</a><br /></td></tr>
<tr class="separator:gaf943f0f2680168d3a95a3c2c9f3eca2a"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>NOR/SRAM Controller functions. </p>
<pre class="fragment"> ===============================================================================
##### NOR and SRAM Controller functions #####
===============================================================================
[..] The following sequence should be followed to configure the FSMC to interface
with SRAM, PSRAM, NOR or OneNAND memory connected to the NOR/SRAM Bank:
(#) Enable the clock for the FSMC and associated GPIOs using the following functions:
RCC_AHB3PeriphClockCmd(RCC_AHB3Periph_FSMC, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOx, ENABLE);
(#) FSMC pins configuration
(++) Connect the involved FSMC pins to AF12 using the following function
GPIO_PinAFConfig(GPIOx, GPIO_PinSourcex, GPIO_AF_FSMC);
(++) Configure these FSMC pins in alternate function mode by calling the function
GPIO_Init();
(#) Declare a FSMC_NORSRAMInitTypeDef structure, for example:
FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
and fill the FSMC_NORSRAMInitStructure variable with the allowed values of
the structure member.
(#) Initialize the NOR/SRAM Controller by calling the function
FSMC_NORSRAMInit(&amp;FSMC_NORSRAMInitStructure);
(#) Then enable the NOR/SRAM Bank, for example:
FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM2, ENABLE);
(#) At this stage you can read/write from/to the memory connected to the NOR/SRAM Bank. </pre> <h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="gaf943f0f2680168d3a95a3c2c9f3eca2a"></a>
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<tr>
<td class="memname">void FSMC_NORSRAMCmd </td>
<td>(</td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>FSMC_Bank</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">FunctionalState&#160;</td>
<td class="paramname"><em>NewState</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Enables or disables the specified NOR/SRAM Memory Bank. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">FSMC_Bank</td><td>specifies the FSMC Bank to be used This parameter can be one of the following values: <ul>
<li>FSMC_Bank1_NORSRAM1: FSMC Bank1 NOR/SRAM1 </li>
<li>FSMC_Bank1_NORSRAM2: FSMC Bank1 NOR/SRAM2 </li>
<li>FSMC_Bank1_NORSRAM3: FSMC Bank1 NOR/SRAM3 </li>
<li>FSMC_Bank1_NORSRAM4: FSMC Bank1 NOR/SRAM4 </li>
</ul>
</td></tr>
<tr><td class="paramname">NewState</td><td>new state of the FSMC_Bank. This parameter can be: ENABLE or DISABLE. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">None</td><td></td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="gaab3e6648e8a584e73785361ac960eded"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void FSMC_NORSRAMDeInit </td>
<td>(</td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>FSMC_Bank</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>De-initializes the FSMC NOR/SRAM Banks registers to their default reset values. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">FSMC_Bank</td><td>specifies the FSMC Bank to be used This parameter can be one of the following values: <ul>
<li>FSMC_Bank1_NORSRAM1: FSMC Bank1 NOR/SRAM1 </li>
<li>FSMC_Bank1_NORSRAM2: FSMC Bank1 NOR/SRAM2 </li>
<li>FSMC_Bank1_NORSRAM3: FSMC Bank1 NOR/SRAM3 </li>
<li>FSMC_Bank1_NORSRAM4: FSMC Bank1 NOR/SRAM4 </li>
</ul>
</td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">None</td><td></td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ga9c27816e8b17394c9ee1ce9298917b4a"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void FSMC_NORSRAMInit </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_f_s_m_c___n_o_r_s_r_a_m_init_type_def.html">FSMC_NORSRAMInitTypeDef</a> *&#160;</td>
<td class="paramname"><em>FSMC_NORSRAMInitStruct</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Initializes the FSMC NOR/SRAM Banks according to the specified parameters in the FSMC_NORSRAMInitStruct. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">FSMC_NORSRAMInitStruct</td><td>: pointer to a <a class="el" href="struct_f_s_m_c___n_o_r_s_r_a_m_init_type_def.html" title="FSMC NOR/SRAM Init structure definition. ">FSMC_NORSRAMInitTypeDef</a> structure that contains the configuration information for the FSMC NOR/SRAM specified Banks. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">None</td><td></td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="gaf33e6dfc34f62d16a0cb416de9e83d28"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void FSMC_NORSRAMStructInit </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_f_s_m_c___n_o_r_s_r_a_m_init_type_def.html">FSMC_NORSRAMInitTypeDef</a> *&#160;</td>
<td class="paramname"><em>FSMC_NORSRAMInitStruct</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Fills each FSMC_NORSRAMInitStruct member with its default value. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">FSMC_NORSRAMInitStruct</td><td>pointer to a <a class="el" href="struct_f_s_m_c___n_o_r_s_r_a_m_init_type_def.html" title="FSMC NOR/SRAM Init structure definition. ">FSMC_NORSRAMInitTypeDef</a> structure which will be initialized. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">None</td><td></td></tr>
</table>
</dd>
</dl>
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