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<a href="#func-members">Functions</a> </div>
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<div class="title">MultiProcessor Communication 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___u_s_a_r_t.html">USART</a> » <a class="el" href="group___u_s_a_r_t___private___functions.html">USART_Private_Functions</a></div></div> </div>
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<div class="contents">
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<p>Multi-Processor Communication functions.
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<a href="#details">More...</a></p>
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<div class="dynheader">
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Collaboration diagram for MultiProcessor Communication functions:</div>
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<div class="dyncontent">
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<center><table><tr><td><img src="group___u_s_a_r_t___group3.png" border="0" alt="" usemap="#group______u__s__a__r__t______group3"/>
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<map name="group______u__s__a__r__t______group3" id="group______u__s__a__r__t______group3">
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<area shape="rect" id="node2" href="group___u_s_a_r_t___private___functions.html" title="USART_Private_Functions" alt="" coords="5,13,180,39"/></map>
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</td></tr></table></center>
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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:ga65ec9928817f3f031dd9a4dfc95d6666"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___u_s_a_r_t___group3.html#ga65ec9928817f3f031dd9a4dfc95d6666">USART_SetAddress</a> (<a class="el" href="struct_u_s_a_r_t___type_def.html">USART_TypeDef</a> *USARTx, uint8_t USART_Address)</td></tr>
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<tr class="memdesc:ga65ec9928817f3f031dd9a4dfc95d6666"><td class="mdescLeft"> </td><td class="mdescRight">Sets the address of the USART node. <a href="#ga65ec9928817f3f031dd9a4dfc95d6666">More...</a><br /></td></tr>
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<tr class="separator:ga65ec9928817f3f031dd9a4dfc95d6666"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gac27b78ce445a16fe33851d2f87781c02"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___u_s_a_r_t___group3.html#gac27b78ce445a16fe33851d2f87781c02">USART_ReceiverWakeUpCmd</a> (<a class="el" href="struct_u_s_a_r_t___type_def.html">USART_TypeDef</a> *USARTx, FunctionalState NewState)</td></tr>
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<tr class="memdesc:gac27b78ce445a16fe33851d2f87781c02"><td class="mdescLeft"> </td><td class="mdescRight">Determines if the USART is in mute mode or not. <a href="#gac27b78ce445a16fe33851d2f87781c02">More...</a><br /></td></tr>
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<tr class="separator:gac27b78ce445a16fe33851d2f87781c02"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga4965417c2412c36e462fcad50a8d5393"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___u_s_a_r_t___group3.html#ga4965417c2412c36e462fcad50a8d5393">USART_WakeUpConfig</a> (<a class="el" href="struct_u_s_a_r_t___type_def.html">USART_TypeDef</a> *USARTx, uint16_t USART_WakeUp)</td></tr>
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<tr class="memdesc:ga4965417c2412c36e462fcad50a8d5393"><td class="mdescLeft"> </td><td class="mdescRight">Selects the USART WakeUp method. <a href="#ga4965417c2412c36e462fcad50a8d5393">More...</a><br /></td></tr>
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<tr class="separator:ga4965417c2412c36e462fcad50a8d5393"><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>Multi-Processor Communication functions. </p>
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<pre class="fragment"> ===============================================================================
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##### Multi-Processor Communication functions #####
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===============================================================================
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[..]
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This subsection provides a set of functions allowing to manage the USART
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multiprocessor communication.
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[..]
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For instance one of the USARTs can be the master, its TX output is connected
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to the RX input of the other USART. The others are slaves, their respective
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TX outputs are logically ANDed together and connected to the RX input of the
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master.
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[..]
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USART multiprocessor communication is possible through the following procedure:
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(#) Program the Baud rate, Word length = 9 bits, Stop bits, Parity, Mode
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transmitter or Mode receiver and hardware flow control values using
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the USART_Init() function.
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(#) Configures the USART address using the USART_SetAddress() function.
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(#) Configures the wake up method (USART_WakeUp_IdleLine or USART_WakeUp_AddressMark)
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using USART_WakeUpConfig() function only for the slaves.
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(#) Enable the USART using the USART_Cmd() function.
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(#) Enter the USART slaves in mute mode using USART_ReceiverWakeUpCmd() function.
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[..]
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The USART Slave exit from mute mode when receive the wake up condition.</pre> <h2 class="groupheader">Function Documentation</h2>
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<a class="anchor" id="gac27b78ce445a16fe33851d2f87781c02"></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 USART_ReceiverWakeUpCmd </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_u_s_a_r_t___type_def.html">USART_TypeDef</a> * </td>
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<td class="paramname"><em>USARTx</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>Determines if the USART is in mute mode 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">USARTx</td><td>where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral. </td></tr>
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<tr><td class="paramname">NewState</td><td>new state of the USART mute mode. 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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<a class="anchor" id="ga65ec9928817f3f031dd9a4dfc95d6666"></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 USART_SetAddress </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_u_s_a_r_t___type_def.html">USART_TypeDef</a> * </td>
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<td class="paramname"><em>USARTx</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>USART_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>Sets the address of the USART node. </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">USARTx</td><td>where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral. </td></tr>
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<tr><td class="paramname">USART_Address</td><td>Indicates the address of the USART node. </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="ga4965417c2412c36e462fcad50a8d5393"></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 USART_WakeUpConfig </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="struct_u_s_a_r_t___type_def.html">USART_TypeDef</a> * </td>
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<td class="paramname"><em>USARTx</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>USART_WakeUp</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>Selects the USART WakeUp method. </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">USARTx</td><td>where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral. </td></tr>
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<tr><td class="paramname">USART_WakeUp</td><td>specifies the USART wakeup method. This parameter can be one of the following values: <ul>
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<li>USART_WakeUp_IdleLine: WakeUp by an idle line detection </li>
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<li>USART_WakeUp_AddressMark: WakeUp by an address mark </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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