977 lines
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977 lines
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<a href="#func-members">Functions</a> </div>
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<div class="title">Initialization and Configuration functions<div class="ingroups"><a class="el" href="group___s_t_m32_f4xx___std_periph___driver.html">STM32F4xx_StdPeriph_Driver</a> » <a class="el" href="group___i2_c.html">I2C</a> » <a class="el" href="group___i2_c___private___functions.html">I2C_Private_Functions</a></div></div> </div>
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<p>Initialization and Configuration functions.
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<a href="#details">More...</a></p>
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Collaboration diagram for Initialization and Configuration functions:</div>
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<center><table><tr><td><img src="group___i2_c___group1.png" border="0" alt="" usemap="#group______i2__c______group1"/>
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<map name="group______i2__c______group1" id="group______i2__c______group1">
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<area shape="rect" id="node1" href="group___i2_c___private___functions.html" title="I2C_Private_Functions" alt="" coords="5,13,156,39"/></map>
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</div>
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<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:ga2ee214364603059ad5d9089f749f5bfd"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga2ee214364603059ad5d9089f749f5bfd">I2C_DeInit</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx)</td></tr>
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<tr class="memdesc:ga2ee214364603059ad5d9089f749f5bfd"><td class="mdescLeft"> </td><td class="mdescRight">Deinitialize the I2Cx peripheral registers to their default reset values. <a href="#ga2ee214364603059ad5d9089f749f5bfd">More...</a><br /></td></tr>
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<tr class="separator:ga2ee214364603059ad5d9089f749f5bfd"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaac29465bca70fbc91c2f922ab67bb88e"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#gaac29465bca70fbc91c2f922ab67bb88e">I2C_Init</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, <a class="el" href="struct_i2_c___init_type_def.html">I2C_InitTypeDef</a> *I2C_InitStruct)</td></tr>
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<tr class="memdesc:gaac29465bca70fbc91c2f922ab67bb88e"><td class="mdescLeft"> </td><td class="mdescRight">Initializes the I2Cx peripheral according to the specified parameters in the I2C_InitStruct. <a href="#gaac29465bca70fbc91c2f922ab67bb88e">More...</a><br /></td></tr>
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<tr class="separator:gaac29465bca70fbc91c2f922ab67bb88e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga08582aca6d7d7910cd5cbff0d9def350"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga08582aca6d7d7910cd5cbff0d9def350">I2C_StructInit</a> (<a class="el" href="struct_i2_c___init_type_def.html">I2C_InitTypeDef</a> *I2C_InitStruct)</td></tr>
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<tr class="memdesc:ga08582aca6d7d7910cd5cbff0d9def350"><td class="mdescLeft"> </td><td class="mdescRight">Fills each I2C_InitStruct member with its default value. <a href="#ga08582aca6d7d7910cd5cbff0d9def350">More...</a><br /></td></tr>
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<tr class="separator:ga08582aca6d7d7910cd5cbff0d9def350"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga7e1323c9133c2cb424dfb5b10b7d2f0b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga7e1323c9133c2cb424dfb5b10b7d2f0b">I2C_Cmd</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, FunctionalState NewState)</td></tr>
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<tr class="memdesc:ga7e1323c9133c2cb424dfb5b10b7d2f0b"><td class="mdescLeft"> </td><td class="mdescRight">Enables or disables the specified I2C peripheral. <a href="#ga7e1323c9133c2cb424dfb5b10b7d2f0b">More...</a><br /></td></tr>
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<tr class="separator:ga7e1323c9133c2cb424dfb5b10b7d2f0b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga7f92bbdb33774b819232d039c73bf1c2"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga7f92bbdb33774b819232d039c73bf1c2">I2C_AnalogFilterCmd</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, FunctionalState NewState)</td></tr>
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<tr class="memdesc:ga7f92bbdb33774b819232d039c73bf1c2"><td class="mdescLeft"> </td><td class="mdescRight">Enables or disables the Analog filter of I2C peripheral. <a href="#ga7f92bbdb33774b819232d039c73bf1c2">More...</a><br /></td></tr>
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<tr class="separator:ga7f92bbdb33774b819232d039c73bf1c2"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga90b0815858cc14266d2957495fd7e105"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga90b0815858cc14266d2957495fd7e105">I2C_DigitalFilterConfig</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, uint16_t I2C_DigitalFilter)</td></tr>
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<tr class="memdesc:ga90b0815858cc14266d2957495fd7e105"><td class="mdescLeft"> </td><td class="mdescRight">Configures the Digital noise filter of I2C peripheral. <a href="#ga90b0815858cc14266d2957495fd7e105">More...</a><br /></td></tr>
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<tr class="separator:ga90b0815858cc14266d2957495fd7e105"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga36c522b471588be9779c878222ccb20f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga36c522b471588be9779c878222ccb20f">I2C_GenerateSTART</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, FunctionalState NewState)</td></tr>
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<tr class="memdesc:ga36c522b471588be9779c878222ccb20f"><td class="mdescLeft"> </td><td class="mdescRight">Generates I2Cx communication START condition. <a href="#ga36c522b471588be9779c878222ccb20f">More...</a><br /></td></tr>
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<tr class="separator:ga36c522b471588be9779c878222ccb20f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga5c92cb573ca0ae58cc465e5400246561"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga5c92cb573ca0ae58cc465e5400246561">I2C_GenerateSTOP</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, FunctionalState NewState)</td></tr>
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<tr class="memdesc:ga5c92cb573ca0ae58cc465e5400246561"><td class="mdescLeft"> </td><td class="mdescRight">Generates I2Cx communication STOP condition. <a href="#ga5c92cb573ca0ae58cc465e5400246561">More...</a><br /></td></tr>
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<tr class="separator:ga5c92cb573ca0ae58cc465e5400246561"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga009fc2a5b2313c36da39ece39a1156a6"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga009fc2a5b2313c36da39ece39a1156a6">I2C_Send7bitAddress</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, uint8_t Address, uint8_t I2C_Direction)</td></tr>
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<tr class="memdesc:ga009fc2a5b2313c36da39ece39a1156a6"><td class="mdescLeft"> </td><td class="mdescRight">Transmits the address byte to select the slave device. <a href="#ga009fc2a5b2313c36da39ece39a1156a6">More...</a><br /></td></tr>
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<tr class="separator:ga009fc2a5b2313c36da39ece39a1156a6"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga7bb44e894d68a7991f564c43fb187486"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga7bb44e894d68a7991f564c43fb187486">I2C_AcknowledgeConfig</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, FunctionalState NewState)</td></tr>
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<tr class="memdesc:ga7bb44e894d68a7991f564c43fb187486"><td class="mdescLeft"> </td><td class="mdescRight">Enables or disables the specified I2C acknowledge feature. <a href="#ga7bb44e894d68a7991f564c43fb187486">More...</a><br /></td></tr>
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<tr class="separator:ga7bb44e894d68a7991f564c43fb187486"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga7be2cc634a613c8e3539137e897a22df"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga7be2cc634a613c8e3539137e897a22df">I2C_OwnAddress2Config</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, uint8_t Address)</td></tr>
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<tr class="memdesc:ga7be2cc634a613c8e3539137e897a22df"><td class="mdescLeft"> </td><td class="mdescRight">Configures the specified I2C own address2. <a href="#ga7be2cc634a613c8e3539137e897a22df">More...</a><br /></td></tr>
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<tr class="separator:ga7be2cc634a613c8e3539137e897a22df"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga02145a333a56e79557d6ef4ea03fc313"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga02145a333a56e79557d6ef4ea03fc313">I2C_DualAddressCmd</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, FunctionalState NewState)</td></tr>
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<tr class="memdesc:ga02145a333a56e79557d6ef4ea03fc313"><td class="mdescLeft"> </td><td class="mdescRight">Enables or disables the specified I2C dual addressing mode. <a href="#ga02145a333a56e79557d6ef4ea03fc313">More...</a><br /></td></tr>
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<tr class="separator:ga02145a333a56e79557d6ef4ea03fc313"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga65c740fc8d7b3b9f15cc432d8699d471"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga65c740fc8d7b3b9f15cc432d8699d471">I2C_GeneralCallCmd</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, FunctionalState NewState)</td></tr>
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<tr class="memdesc:ga65c740fc8d7b3b9f15cc432d8699d471"><td class="mdescLeft"> </td><td class="mdescRight">Enables or disables the specified I2C general call feature. <a href="#ga65c740fc8d7b3b9f15cc432d8699d471">More...</a><br /></td></tr>
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<tr class="separator:ga65c740fc8d7b3b9f15cc432d8699d471"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga1289c908aeb882443aba323b459c638b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga1289c908aeb882443aba323b459c638b">I2C_SoftwareResetCmd</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, FunctionalState NewState)</td></tr>
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<tr class="memdesc:ga1289c908aeb882443aba323b459c638b"><td class="mdescLeft"> </td><td class="mdescRight">Enables or disables the specified I2C software reset. <a href="#ga1289c908aeb882443aba323b459c638b">More...</a><br /></td></tr>
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<tr class="separator:ga1289c908aeb882443aba323b459c638b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga7459feb3b1dfcd3e4f6574002ca7d3bd"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga7459feb3b1dfcd3e4f6574002ca7d3bd">I2C_StretchClockCmd</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, FunctionalState NewState)</td></tr>
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<tr class="memdesc:ga7459feb3b1dfcd3e4f6574002ca7d3bd"><td class="mdescLeft"> </td><td class="mdescRight">Enables or disables the specified I2C Clock stretching. <a href="#ga7459feb3b1dfcd3e4f6574002ca7d3bd">More...</a><br /></td></tr>
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<tr class="separator:ga7459feb3b1dfcd3e4f6574002ca7d3bd"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaa570f76bc34e5b0531b29b1a90af1275"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#gaa570f76bc34e5b0531b29b1a90af1275">I2C_FastModeDutyCycleConfig</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, uint16_t I2C_DutyCycle)</td></tr>
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<tr class="memdesc:gaa570f76bc34e5b0531b29b1a90af1275"><td class="mdescLeft"> </td><td class="mdescRight">Selects the specified I2C fast mode duty cycle. <a href="#gaa570f76bc34e5b0531b29b1a90af1275">More...</a><br /></td></tr>
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<tr class="separator:gaa570f76bc34e5b0531b29b1a90af1275"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gad08ebffc3a234d84e6405ec115bd74f1"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#gad08ebffc3a234d84e6405ec115bd74f1">I2C_NACKPositionConfig</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, uint16_t I2C_NACKPosition)</td></tr>
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<tr class="memdesc:gad08ebffc3a234d84e6405ec115bd74f1"><td class="mdescLeft"> </td><td class="mdescRight">Selects the specified I2C NACK position in master receiver mode. <a href="#gad08ebffc3a234d84e6405ec115bd74f1">More...</a><br /></td></tr>
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<tr class="separator:gad08ebffc3a234d84e6405ec115bd74f1"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga75a810776d9710d2f6d9c5d9e93241c6"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga75a810776d9710d2f6d9c5d9e93241c6">I2C_SMBusAlertConfig</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, uint16_t I2C_SMBusAlert)</td></tr>
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<tr class="memdesc:ga75a810776d9710d2f6d9c5d9e93241c6"><td class="mdescLeft"> </td><td class="mdescRight">Drives the SMBusAlert pin high or low for the specified I2C. <a href="#ga75a810776d9710d2f6d9c5d9e93241c6">More...</a><br /></td></tr>
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<tr class="separator:ga75a810776d9710d2f6d9c5d9e93241c6"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga66d86742bf1be58b17ef8779ffc79d02"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i2_c___group1.html#ga66d86742bf1be58b17ef8779ffc79d02">I2C_ARPCmd</a> (<a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> *I2Cx, FunctionalState NewState)</td></tr>
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<tr class="memdesc:ga66d86742bf1be58b17ef8779ffc79d02"><td class="mdescLeft"> </td><td class="mdescRight">Enables or disables the specified I2C ARP. <a href="#ga66d86742bf1be58b17ef8779ffc79d02">More...</a><br /></td></tr>
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<tr class="separator:ga66d86742bf1be58b17ef8779ffc79d02"><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>Initialization and Configuration functions. </p>
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<pre class="fragment"> ===============================================================================
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##### Initialization and Configuration functions #####
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=============================================================================== </pre> <h2 class="groupheader">Function Documentation</h2>
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<a class="anchor" id="ga7bb44e894d68a7991f564c43fb187486"></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 I2C_AcknowledgeConfig </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
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<td class="paramname"><em>I2Cx</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">FunctionalState </td>
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<td class="paramname"><em>NewState</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><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 or disables the specified I2C acknowledge feature. </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">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
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<tr><td class="paramname">NewState</td><td>new state of the I2C Acknowledgement. This parameter can be: ENABLE or DISABLE. </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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<table class="memname">
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<tr>
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<td class="memname">void I2C_AnalogFilterCmd </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
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<td class="paramname"><em>I2Cx</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">FunctionalState </td>
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<td class="paramname"><em>NewState</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><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 or disables the Analog filter of I2C peripheral. </p>
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<dl class="section note"><dt>Note</dt><dd>This function can be used only for STM32F42xxx/STM3243xxx, STM32F401xx and STM32F411xE devices.</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">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
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<tr><td class="paramname">NewState</td><td>new state of the Analog filter. This parameter can be: ENABLE or DISABLE. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section note"><dt>Note</dt><dd>This function should be called before initializing and enabling the I2C Peripheral. </dd></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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<td class="memname">void I2C_ARPCmd </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
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<td class="paramname"><em>I2Cx</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">FunctionalState </td>
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<td class="paramname"><em>NewState</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><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 or disables the specified I2C ARP. </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">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
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<tr><td class="paramname">NewState</td><td>new state of the I2Cx ARP. This parameter can be: ENABLE or DISABLE. </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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<td class="memname">void I2C_Cmd </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
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<td class="paramname"><em>I2Cx</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">FunctionalState </td>
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<td class="paramname"><em>NewState</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><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 or disables the specified I2C peripheral. </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">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
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<tr><td class="paramname">NewState</td><td>new state of the I2Cx peripheral. This parameter can be: ENABLE or DISABLE. </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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<td class="memname">void I2C_DeInit </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
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<td class="paramname"><em>I2Cx</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>Deinitialize the I2Cx 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">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </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___i2_c___group1_ga2ee214364603059ad5d9089f749f5bfd_cgraph.png" border="0" usemap="#group___i2_c___group1_ga2ee214364603059ad5d9089f749f5bfd_cgraph" alt=""/></div>
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<map name="group___i2_c___group1_ga2ee214364603059ad5d9089f749f5bfd_cgraph" id="group___i2_c___group1_ga2ee214364603059ad5d9089f749f5bfd_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="135,5,323,32"/></map>
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</div>
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</p>
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</div>
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<td class="memname">void I2C_DigitalFilterConfig </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
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<td class="paramname"><em>I2Cx</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>I2C_DigitalFilter</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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</div><div class="memdoc">
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<p>Configures the Digital noise filter of I2C peripheral. </p>
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<dl class="section note"><dt>Note</dt><dd>This function can be used only for STM32F42xxx/STM3243xxx, STM32F401xx and STM32F411xE devices.</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">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
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<tr><td class="paramname">I2C_DigitalFilter</td><td>Coefficient of digital noise filter. This parameter can be a number between 0x00 and 0x0F. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section note"><dt>Note</dt><dd>This function should be called before initializing and enabling the I2C Peripheral. </dd></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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<a class="anchor" id="ga02145a333a56e79557d6ef4ea03fc313"></a>
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<td class="memname">void I2C_DualAddressCmd </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
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<td class="paramname"><em>I2Cx</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">FunctionalState </td>
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<td class="paramname"><em>NewState</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><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 or disables the specified I2C dual addressing mode. </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">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
|
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<tr><td class="paramname">NewState</td><td>new state of the I2C dual addressing mode. This parameter can be: ENABLE or DISABLE. </td></tr>
|
|
</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="gaa570f76bc34e5b0531b29b1a90af1275"></a>
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<div class="memproto">
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<td class="memname">void I2C_FastModeDutyCycleConfig </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
|
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<td class="paramname"><em>I2Cx</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>I2C_DutyCycle</em> </td>
|
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</table>
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</div><div class="memdoc">
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<p>Selects the specified I2C fast mode duty cycle. </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">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
|
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<tr><td class="paramname">I2C_DutyCycle</td><td>specifies the fast mode duty cycle. This parameter can be one of the following values: <ul>
|
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<li>I2C_DutyCycle_2: I2C fast mode Tlow/Thigh = 2 </li>
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<li>I2C_DutyCycle_16_9: I2C fast mode Tlow/Thigh = 16/9 </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>
|
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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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<td class="memname">void I2C_GeneralCallCmd </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
|
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<td class="paramname"><em>I2Cx</em>, </td>
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</tr>
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<tr>
|
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<td class="paramkey"></td>
|
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<td></td>
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<td class="paramtype">FunctionalState </td>
|
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<td class="paramname"><em>NewState</em> </td>
|
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</table>
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</div><div class="memdoc">
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<p>Enables or disables the specified I2C general call feature. </p>
|
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<dl class="params"><dt>Parameters</dt><dd>
|
|
<table class="params">
|
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<tr><td class="paramname">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
|
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<tr><td class="paramname">NewState</td><td>new state of the I2C General call. This parameter can be: ENABLE or DISABLE. </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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<td class="memname">void I2C_GenerateSTART </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
|
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<td class="paramname"><em>I2Cx</em>, </td>
|
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</tr>
|
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<tr>
|
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<td class="paramkey"></td>
|
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<td></td>
|
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<td class="paramtype">FunctionalState </td>
|
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<td class="paramname"><em>NewState</em> </td>
|
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</tr>
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<tr>
|
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<td></td>
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<td>)</td>
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<td></td><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>Generates I2Cx communication START condition. </p>
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
|
<table class="params">
|
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<tr><td class="paramname">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
|
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<tr><td class="paramname">NewState</td><td>new state of the I2C START condition generation. This parameter can be: ENABLE or DISABLE. </td></tr>
|
|
</table>
|
|
</dd>
|
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</dl>
|
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<dl class="retval"><dt>Return values</dt><dd>
|
|
<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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<td class="memname">void I2C_GenerateSTOP </td>
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<td>(</td>
|
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
|
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<td class="paramname"><em>I2Cx</em>, </td>
|
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</tr>
|
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">FunctionalState </td>
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<td class="paramname"><em>NewState</em> </td>
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<td></td>
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<td>)</td>
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</div><div class="memdoc">
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<p>Generates I2Cx communication STOP condition. </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">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
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<tr><td class="paramname">NewState</td><td>new state of the I2C STOP condition generation. This parameter can be: ENABLE or DISABLE. </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="gaac29465bca70fbc91c2f922ab67bb88e"></a>
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<tr>
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<td class="memname">void I2C_Init </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
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<td class="paramname"><em>I2Cx</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="struct_i2_c___init_type_def.html">I2C_InitTypeDef</a> * </td>
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<td class="paramname"><em>I2C_InitStruct</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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</div><div class="memdoc">
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<p>Initializes the I2Cx peripheral according to the specified parameters in the I2C_InitStruct. </p>
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<dl class="section note"><dt>Note</dt><dd>To use the I2C at 400 KHz (in fast mode), the PCLK1 frequency (I2C peripheral input clock) must be a multiple of 10 MHz.</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">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
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<tr><td class="paramname">I2C_InitStruct</td><td>pointer to a <a class="el" href="struct_i2_c___init_type_def.html" title="I2C Init structure definition. ">I2C_InitTypeDef</a> structure that contains the configuration information for the specified I2C peripheral. </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="center"><img src="group___i2_c___group1_gaac29465bca70fbc91c2f922ab67bb88e_cgraph.png" border="0" usemap="#group___i2_c___group1_gaac29465bca70fbc91c2f922ab67bb88e_cgraph" alt=""/></div>
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<area shape="rect" id="node2" href="group___r_c_c.html#ga3e9944fd1ed734275222bbb3e3f29993" title="Returns the frequencies of different on chip clocks; SYSCLK, HCLK, PCLK1 and PCLK2. " alt="" coords="119,5,261,32"/></map>
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</p>
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<td class="memname">void I2C_NACKPositionConfig </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
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<td class="paramname"><em>I2Cx</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>I2C_NACKPosition</em> </td>
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<p>Selects the specified I2C NACK position in master receiver mode. </p>
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<dl class="section note"><dt>Note</dt><dd>This function is useful in I2C Master Receiver mode when the number of data to be received is equal to 2. In this case, this function should be called (with parameter I2C_NACKPosition_Next) before data reception starts,as described in the 2-byte reception procedure recommended in Reference Manual in Section: Master receiver. </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">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
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<tr><td class="paramname">I2C_NACKPosition</td><td>specifies the NACK position. This parameter can be one of the following values: <ul>
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<li>I2C_NACKPosition_Next: indicates that the next byte will be the last received byte. </li>
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<li>I2C_NACKPosition_Current: indicates that current byte is the last received byte.</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="section note"><dt>Note</dt><dd>This function configures the same bit (POS) as <a class="el" href="group___i2_c___group3.html#ga5d0f939bdd45542502827bf408f24161" title="Selects the specified I2C PEC position. ">I2C_PECPositionConfig()</a> but is intended to be used in I2C mode while <a class="el" href="group___i2_c___group3.html#ga5d0f939bdd45542502827bf408f24161" title="Selects the specified I2C PEC position. ">I2C_PECPositionConfig()</a> is intended to used in SMBUS mode.</dd></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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<td class="memname">void I2C_OwnAddress2Config </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
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<td class="paramname"><em>I2Cx</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></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>Address</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><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>Configures the specified I2C own address2. </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">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
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<tr><td class="paramname">Address</td><td>specifies the 7bit I2C own address2. </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="ga009fc2a5b2313c36da39ece39a1156a6"></a>
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<td class="memname">void I2C_Send7bitAddress </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
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<td class="paramname"><em>I2Cx</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></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>Address</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></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>I2C_Direction</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><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>Transmits the address byte to select the slave device. </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">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
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<tr><td class="paramname">Address</td><td>specifies the slave address which will be transmitted </td></tr>
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<tr><td class="paramname">I2C_Direction</td><td>specifies whether the I2C device will be a Transmitter or a Receiver. This parameter can be one of the following values <ul>
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<li>I2C_Direction_Transmitter: Transmitter mode </li>
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<li>I2C_Direction_Receiver: Receiver mode </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>
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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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<td class="memname">void I2C_SMBusAlertConfig </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
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<td class="paramname"><em>I2Cx</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint16_t </td>
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<td class="paramname"><em>I2C_SMBusAlert</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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</div><div class="memdoc">
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<p>Drives the SMBusAlert pin high or low for the specified I2C. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
|
|
<tr><td class="paramname">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
|
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<tr><td class="paramname">I2C_SMBusAlert</td><td>specifies SMBAlert pin level. This parameter can be one of the following values: <ul>
|
|
<li>I2C_SMBusAlert_Low: SMBAlert pin driven low </li>
|
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<li>I2C_SMBusAlert_High: SMBAlert pin driven high </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>
|
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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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<td class="memname">void I2C_SoftwareResetCmd </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
|
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<td class="paramname"><em>I2Cx</em>, </td>
|
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</tr>
|
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<tr>
|
|
<td class="paramkey"></td>
|
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<td></td>
|
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<td class="paramtype">FunctionalState </td>
|
|
<td class="paramname"><em>NewState</em> </td>
|
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><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 or disables the specified I2C software reset. </p>
|
|
<dl class="section note"><dt>Note</dt><dd>When software reset is enabled, the I2C IOs are released (this can be useful to recover from bus errors). </dd></dl>
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
|
<table class="params">
|
|
<tr><td class="paramname">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
|
|
<tr><td class="paramname">NewState</td><td>new state of the I2C software reset. 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>
|
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</table>
|
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</dd>
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</dl>
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</div>
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<a class="anchor" id="ga7459feb3b1dfcd3e4f6574002ca7d3bd"></a>
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<td class="memname">void I2C_StretchClockCmd </td>
|
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<td>(</td>
|
|
<td class="paramtype"><a class="el" href="struct_i2_c___type_def.html">I2C_TypeDef</a> * </td>
|
|
<td class="paramname"><em>I2Cx</em>, </td>
|
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</tr>
|
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<tr>
|
|
<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype">FunctionalState </td>
|
|
<td class="paramname"><em>NewState</em> </td>
|
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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</div><div class="memdoc">
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<p>Enables or disables the specified I2C Clock stretching. </p>
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
|
<table class="params">
|
|
<tr><td class="paramname">I2Cx</td><td>where x can be 1, 2 or 3 to select the I2C peripheral. </td></tr>
|
|
<tr><td class="paramname">NewState</td><td>new state of the I2Cx Clock stretching. 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>
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</dd>
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</dl>
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</div>
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<td class="memname">void I2C_StructInit </td>
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<td>(</td>
|
|
<td class="paramtype"><a class="el" href="struct_i2_c___init_type_def.html">I2C_InitTypeDef</a> * </td>
|
|
<td class="paramname"><em>I2C_InitStruct</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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|
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<p>Fills each I2C_InitStruct member with its default value. </p>
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
|
<table class="params">
|
|
<tr><td class="paramname">I2C_InitStruct</td><td>pointer to an <a class="el" href="struct_i2_c___init_type_def.html" title="I2C Init structure definition. ">I2C_InitTypeDef</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>
|
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</dd>
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</dl>
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</div>
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</div>
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