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<a href="#func-members">Functions</a> </div>
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<div class="title">Interrupts and flags management 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___l_t_d_c.html">LTDC</a> » <a class="el" href="group___l_t_d_c___private___functions.html">LTDC_Private_Functions</a></div></div> </div>
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<div class="contents">
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<p>Interrupts and flags management 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 Interrupts and flags management functions:</div>
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<div class="dyncontent">
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<center><table><tr><td><img src="group___l_t_d_c___group2.png" border="0" alt="" usemap="#group______l__t__d__c______group2"/>
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<map name="group______l__t__d__c______group2" id="group______l__t__d__c______group2">
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<area shape="rect" id="node1" href="group___l_t_d_c___private___functions.html" title="LTDC_Private_Functions" alt="" coords="5,13,168,39"/></map>
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</td></tr></table></center>
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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:gacc0421b1cf7a18500533ae261c0ef678"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___l_t_d_c___group2.html#gacc0421b1cf7a18500533ae261c0ef678">LTDC_ITConfig</a> (uint32_t LTDC_IT, FunctionalState NewState)</td></tr>
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<tr class="memdesc:gacc0421b1cf7a18500533ae261c0ef678"><td class="mdescLeft"> </td><td class="mdescRight">Enables or disables the specified LTDC's interrupts. <a href="#gacc0421b1cf7a18500533ae261c0ef678">More...</a><br /></td></tr>
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<tr class="separator:gacc0421b1cf7a18500533ae261c0ef678"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga2f944f88b3be1aadbf8644dac420460d"><td class="memItemLeft" align="right" valign="top">FlagStatus </td><td class="memItemRight" valign="bottom"><a class="el" href="group___l_t_d_c___group2.html#ga2f944f88b3be1aadbf8644dac420460d">LTDC_GetFlagStatus</a> (uint32_t LTDC_FLAG)</td></tr>
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<tr class="memdesc:ga2f944f88b3be1aadbf8644dac420460d"><td class="mdescLeft"> </td><td class="mdescRight">Checks whether the specified LTDC's flag is set or not. <a href="#ga2f944f88b3be1aadbf8644dac420460d">More...</a><br /></td></tr>
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<tr class="separator:ga2f944f88b3be1aadbf8644dac420460d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gab509e7312fda8fa91604e6c83c88d39f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___l_t_d_c___group2.html#gab509e7312fda8fa91604e6c83c88d39f">LTDC_ClearFlag</a> (uint32_t LTDC_FLAG)</td></tr>
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<tr class="memdesc:gab509e7312fda8fa91604e6c83c88d39f"><td class="mdescLeft"> </td><td class="mdescRight">Clears the LTDC's pending flags. <a href="#gab509e7312fda8fa91604e6c83c88d39f">More...</a><br /></td></tr>
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<tr class="separator:gab509e7312fda8fa91604e6c83c88d39f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga81c69fd7e796d1345507948788e98aac"><td class="memItemLeft" align="right" valign="top">ITStatus </td><td class="memItemRight" valign="bottom"><a class="el" href="group___l_t_d_c___group2.html#ga81c69fd7e796d1345507948788e98aac">LTDC_GetITStatus</a> (uint32_t LTDC_IT)</td></tr>
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<tr class="memdesc:ga81c69fd7e796d1345507948788e98aac"><td class="mdescLeft"> </td><td class="mdescRight">Checks whether the specified LTDC's interrupt has occurred or not. <a href="#ga81c69fd7e796d1345507948788e98aac">More...</a><br /></td></tr>
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<tr class="separator:ga81c69fd7e796d1345507948788e98aac"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga2adba2161d29b7eca6123ae67a46c112"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___l_t_d_c___group2.html#ga2adba2161d29b7eca6123ae67a46c112">LTDC_ClearITPendingBit</a> (uint32_t LTDC_IT)</td></tr>
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<tr class="memdesc:ga2adba2161d29b7eca6123ae67a46c112"><td class="mdescLeft"> </td><td class="mdescRight">Clears the LTDC's interrupt pending bits. <a href="#ga2adba2161d29b7eca6123ae67a46c112">More...</a><br /></td></tr>
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<tr class="separator:ga2adba2161d29b7eca6123ae67a46c112"><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>Interrupts and flags management functions. </p>
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<pre class="fragment"> ===============================================================================
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##### Interrupts and flags management functions #####
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===============================================================================
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[..] This section provides functions allowing to configure the LTDC Interrupts
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and to get the status and clear flags and Interrupts pending bits.
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[..] The LTDC provides 4 Interrupts sources and 4 Flags
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*** Flags ***
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=============
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[..]
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(+) LTDC_FLAG_LI: Line Interrupt flag.
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(+) LTDC_FLAG_FU: FIFO Underrun Interrupt flag.
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(+) LTDC_FLAG_TERR: Transfer Error Interrupt flag.
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(+) LTDC_FLAG_RR: Register Reload interrupt flag.
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*** Interrupts ***
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==================
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[..]
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(+) LTDC_IT_LI: Line Interrupt is generated when a programmed line
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is reached. The line interrupt position is programmed in
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the LTDC_LIPR register.
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(+) LTDC_IT_FU: FIFO Underrun interrupt is generated when a pixel is requested
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from an empty layer FIFO
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(+) LTDC_IT_TERR: Transfer Error interrupt is generated when an AHB bus
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error occurs during data transfer.
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(+) LTDC_IT_RR: Register Reload interrupt is generated when the shadow
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registers reload was performed during the vertical blanking
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period.</pre> <h2 class="groupheader">Function Documentation</h2>
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<a class="anchor" id="gab509e7312fda8fa91604e6c83c88d39f"></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 LTDC_ClearFlag </td>
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<td>(</td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>LTDC_FLAG</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>Clears the LTDC's pending flags. </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">LTDC_FLAG</td><td>specifies the flag to clear. This parameter can be any combination of the following values: <ul>
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<li>LTDC_FLAG_LI: <a class="el" href="struct_line.html">Line</a> Interrupt flag. </li>
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<li>LTDC_FLAG_FU: FIFO Underrun Interrupt flag. </li>
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<li>LTDC_FLAG_TERR: Transfer Error Interrupt flag. </li>
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<li>LTDC_FLAG_RR: Register Reload interrupt flag. </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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<a class="anchor" id="ga2adba2161d29b7eca6123ae67a46c112"></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 LTDC_ClearITPendingBit </td>
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<td>(</td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>LTDC_IT</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>Clears the LTDC's interrupt pending bits. </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">LTDC_IT</td><td>specifies the interrupt pending bit to clear. This parameter can be any combination of the following values: <ul>
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<li>LTDC_IT_LIE: <a class="el" href="struct_line.html">Line</a> Interrupt. </li>
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<li>LTDC_IT_FUIE: FIFO Underrun Interrupt. </li>
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<li>LTDC_IT_TERRIE: Transfer Error Interrupt. </li>
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<li>LTDC_IT_RRIE: Register Reload interrupt. </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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<a class="anchor" id="ga2f944f88b3be1aadbf8644dac420460d"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">FlagStatus LTDC_GetFlagStatus </td>
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<td>(</td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>LTDC_FLAG</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>Checks whether the specified LTDC's flag is set or not. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">LTDC_FLAG</td><td>specifies the flag to check. This parameter can be one of the following values: <ul>
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<li>LTDC_FLAG_LI: <a class="el" href="struct_line.html">Line</a> Interrupt flag. </li>
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<li>LTDC_FLAG_FU: FIFO Underrun Interrupt flag. </li>
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<li>LTDC_FLAG_TERR: Transfer Error Interrupt flag. </li>
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<li>LTDC_FLAG_RR: Register Reload interrupt flag. </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">The</td><td>new state of LTDC_FLAG (SET or RESET). </td></tr>
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</table>
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</dd>
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</dl>
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</div>
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</div>
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<a class="anchor" id="ga81c69fd7e796d1345507948788e98aac"></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">ITStatus LTDC_GetITStatus </td>
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<td>(</td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>LTDC_IT</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>Checks whether the specified LTDC's interrupt has occurred 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">LTDC_IT</td><td>specifies the LTDC interrupts sources to check. This parameter can be one of the following values: <ul>
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<li>LTDC_IT_LI: <a class="el" href="struct_line.html">Line</a> Interrupt Enable. </li>
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<li>LTDC_IT_FU: FIFO Underrun Interrupt Enable. </li>
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<li>LTDC_IT_TERR: Transfer Error Interrupt Enable. </li>
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<li>LTDC_IT_RR: Register Reload interrupt Enable. </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">The</td><td>new state of the LTDC_IT (SET or RESET). </td></tr>
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</table>
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</dd>
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</dl>
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</div>
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</div>
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<a class="anchor" id="gacc0421b1cf7a18500533ae261c0ef678"></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 LTDC_ITConfig </td>
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<td>(</td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>LTDC_IT</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 LTDC's interrupts. </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">LTDC_IT</td><td>specifies the LTDC interrupts sources to be enabled or disabled. This parameter can be any combination of the following values: <ul>
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<li>LTDC_IT_LI: <a class="el" href="struct_line.html">Line</a> Interrupt Enable. </li>
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<li>LTDC_IT_FU: FIFO Underrun Interrupt Enable. </li>
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<li>LTDC_IT_TERR: Transfer Error Interrupt Enable. </li>
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<li>LTDC_IT_RR: Register Reload interrupt enable. </li>
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</ul>
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</td></tr>
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<tr><td class="paramname">NewState</td><td>new state of the specified LTDC interrupts. 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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