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600 lines
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<a href="#nested-classes">Data Structures</a> |
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<a href="#typedef-members">Typedefs</a> |
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<a href="#enum-members">Enumerations</a> </div>
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<div class="headertitle">
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<div class="title">EWM: External Watchdog Monitor Driver</div> </div>
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</div><!--header-->
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<div class="contents">
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<a name="details" id="details"></a><h2 class="groupheader">Overview</h2>
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<p>The MCUXpresso SDK provides a peripheral driver for the External Watchdog (EWM) Driver module of MCUXpresso SDK devices.</p>
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<h1><a class="anchor" id="EWMTypUC"></a>
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Typical use case</h1>
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<p>Refer to the driver examples codes located at <SDK_ROOT>/boards/<BOARD>/driver_examples/ewm </p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
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Data Structures</h2></td></tr>
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<tr class="memitem:a00374"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#a00374">_ewm_config</a></td></tr>
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<tr class="memdesc:a00374"><td class="mdescLeft"> </td><td class="mdescRight">Data structure for EWM configuration. <a href="a00026.html#a00374">More...</a><br/></td></tr>
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<tr class="separator:a00374"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
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Typedefs</h2></td></tr>
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<tr class="memitem:gae00e062b2bb5111afe589858657db5c4"><td class="memItemLeft" align="right" valign="top">typedef enum <a class="el" href="a00026.html#ga658124565e189a5a884a591828b81c66">_ewm_lpo_clock_source</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#gae00e062b2bb5111afe589858657db5c4">ewm_lpo_clock_source_t</a></td></tr>
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<tr class="memdesc:gae00e062b2bb5111afe589858657db5c4"><td class="mdescLeft"> </td><td class="mdescRight">Describes EWM clock source. <a href="#gae00e062b2bb5111afe589858657db5c4">More...</a><br/></td></tr>
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<tr class="separator:gae00e062b2bb5111afe589858657db5c4"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga729f4f8aeb5909642d0f0eaecfac593b"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="a00026.html#a00374">_ewm_config</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#ga729f4f8aeb5909642d0f0eaecfac593b">ewm_config_t</a></td></tr>
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<tr class="memdesc:ga729f4f8aeb5909642d0f0eaecfac593b"><td class="mdescLeft"> </td><td class="mdescRight">Data structure for EWM configuration. <a href="#ga729f4f8aeb5909642d0f0eaecfac593b">More...</a><br/></td></tr>
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<tr class="separator:ga729f4f8aeb5909642d0f0eaecfac593b"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a>
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Enumerations</h2></td></tr>
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<tr class="memitem:ga658124565e189a5a884a591828b81c66"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#ga658124565e189a5a884a591828b81c66">_ewm_lpo_clock_source</a> { <br/>
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  <a class="el" href="a00026.html#gga658124565e189a5a884a591828b81c66aa0c2a939796ded985e86292f3ab48880">kEWM_LpoClockSource0</a> = 0U,
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<br/>
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  <a class="el" href="a00026.html#gga658124565e189a5a884a591828b81c66a87adc9960b9c0ed4d5200c9ebabb87a4">kEWM_LpoClockSource1</a> = 1U,
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<br/>
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  <a class="el" href="a00026.html#gga658124565e189a5a884a591828b81c66a13a8f71a88d5209ecb27f01e8f859d6f">kEWM_LpoClockSource2</a> = 2U,
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<br/>
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  <a class="el" href="a00026.html#gga658124565e189a5a884a591828b81c66a04d8b0bead7ea64e37b8c5cbafaaad8b">kEWM_LpoClockSource3</a> = 3U
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<br/>
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}</td></tr>
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<tr class="memdesc:ga658124565e189a5a884a591828b81c66"><td class="mdescLeft"> </td><td class="mdescRight">Describes EWM clock source. <a href="a00026.html#ga658124565e189a5a884a591828b81c66">More...</a><br/></td></tr>
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<tr class="separator:ga658124565e189a5a884a591828b81c66"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaf1f0321cab3227a897b2e2475ceaec5f"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#gaf1f0321cab3227a897b2e2475ceaec5f">_ewm_interrupt_enable_t</a> { <a class="el" href="a00026.html#ggaf1f0321cab3227a897b2e2475ceaec5fa5bd5d6fb4ae17d0173bda608f54fa0e7">kEWM_InterruptEnable</a> = EWM_CTRL_INTEN_MASK
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}</td></tr>
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<tr class="memdesc:gaf1f0321cab3227a897b2e2475ceaec5f"><td class="mdescLeft"> </td><td class="mdescRight">EWM interrupt configuration structure with default settings all disabled. <a href="a00026.html#gaf1f0321cab3227a897b2e2475ceaec5f">More...</a><br/></td></tr>
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<tr class="separator:gaf1f0321cab3227a897b2e2475ceaec5f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga8713ae33b98d07c7a0aeae8bf78432d1"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#ga8713ae33b98d07c7a0aeae8bf78432d1">_ewm_status_flags_t</a> { <a class="el" href="a00026.html#gga8713ae33b98d07c7a0aeae8bf78432d1a4d8e2380358f82522dc60a6ca08a55d3">kEWM_RunningFlag</a> = EWM_CTRL_EWMEN_MASK
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}</td></tr>
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<tr class="memdesc:ga8713ae33b98d07c7a0aeae8bf78432d1"><td class="mdescLeft"> </td><td class="mdescRight">EWM status flags. <a href="a00026.html#ga8713ae33b98d07c7a0aeae8bf78432d1">More...</a><br/></td></tr>
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<tr class="separator:ga8713ae33b98d07c7a0aeae8bf78432d1"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="member-group"></a>
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Driver version</h2></td></tr>
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<tr class="memitem:ga13413f9927ed720755dc3e98f77ecba2"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#ga13413f9927ed720755dc3e98f77ecba2">FSL_EWM_DRIVER_VERSION</a>   (<a class="el" href="a00272.html#ga812138aa3315b0c6953c1a26130bcc37">MAKE_VERSION</a>(2, 0, 3))</td></tr>
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<tr class="memdesc:ga13413f9927ed720755dc3e98f77ecba2"><td class="mdescLeft"> </td><td class="mdescRight">EWM driver version 2.0.3. <a href="#ga13413f9927ed720755dc3e98f77ecba2">More...</a><br/></td></tr>
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<tr class="separator:ga13413f9927ed720755dc3e98f77ecba2"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="member-group"></a>
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EWM initialization and de-initialization</h2></td></tr>
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<tr class="memitem:gafe731b0ab2d0c9f566784a1d6ee722cc"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#gafe731b0ab2d0c9f566784a1d6ee722cc">EWM_Init</a> (EWM_Type *base, const <a class="el" href="a00026.html#ga729f4f8aeb5909642d0f0eaecfac593b">ewm_config_t</a> *config)</td></tr>
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<tr class="memdesc:gafe731b0ab2d0c9f566784a1d6ee722cc"><td class="mdescLeft"> </td><td class="mdescRight">Initializes the EWM peripheral. <a href="#gafe731b0ab2d0c9f566784a1d6ee722cc">More...</a><br/></td></tr>
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<tr class="separator:gafe731b0ab2d0c9f566784a1d6ee722cc"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga4e3101bd8ccb2c11b563819e21058b28"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#ga4e3101bd8ccb2c11b563819e21058b28">EWM_Deinit</a> (EWM_Type *base)</td></tr>
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<tr class="memdesc:ga4e3101bd8ccb2c11b563819e21058b28"><td class="mdescLeft"> </td><td class="mdescRight">Deinitializes the EWM peripheral. <a href="#ga4e3101bd8ccb2c11b563819e21058b28">More...</a><br/></td></tr>
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<tr class="separator:ga4e3101bd8ccb2c11b563819e21058b28"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gac87adab8a628260058e8bee7b849ec67"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#gac87adab8a628260058e8bee7b849ec67">EWM_GetDefaultConfig</a> (<a class="el" href="a00026.html#ga729f4f8aeb5909642d0f0eaecfac593b">ewm_config_t</a> *config)</td></tr>
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<tr class="memdesc:gac87adab8a628260058e8bee7b849ec67"><td class="mdescLeft"> </td><td class="mdescRight">Initializes the EWM configuration structure. <a href="#gac87adab8a628260058e8bee7b849ec67">More...</a><br/></td></tr>
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<tr class="separator:gac87adab8a628260058e8bee7b849ec67"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="member-group"></a>
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EWM functional Operation</h2></td></tr>
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<tr class="memitem:ga01dcefd3eeaf15ba50ab43b95bb3ef5a"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#ga01dcefd3eeaf15ba50ab43b95bb3ef5a">EWM_EnableInterrupts</a> (EWM_Type *base, uint32_t mask)</td></tr>
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<tr class="memdesc:ga01dcefd3eeaf15ba50ab43b95bb3ef5a"><td class="mdescLeft"> </td><td class="mdescRight">Enables the EWM interrupt. <a href="#ga01dcefd3eeaf15ba50ab43b95bb3ef5a">More...</a><br/></td></tr>
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<tr class="separator:ga01dcefd3eeaf15ba50ab43b95bb3ef5a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gacb4ba8a7f7e0bedd5d8acf2e5e185f46"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#gacb4ba8a7f7e0bedd5d8acf2e5e185f46">EWM_DisableInterrupts</a> (EWM_Type *base, uint32_t mask)</td></tr>
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<tr class="memdesc:gacb4ba8a7f7e0bedd5d8acf2e5e185f46"><td class="mdescLeft"> </td><td class="mdescRight">Disables the EWM interrupt. <a href="#gacb4ba8a7f7e0bedd5d8acf2e5e185f46">More...</a><br/></td></tr>
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<tr class="separator:gacb4ba8a7f7e0bedd5d8acf2e5e185f46"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gacfb200abe644ca56e7be42fac09d6f6a"><td class="memItemLeft" align="right" valign="top">static uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#gacfb200abe644ca56e7be42fac09d6f6a">EWM_GetStatusFlags</a> (EWM_Type *base)</td></tr>
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<tr class="memdesc:gacfb200abe644ca56e7be42fac09d6f6a"><td class="mdescLeft"> </td><td class="mdescRight">Gets all status flags. <a href="#gacfb200abe644ca56e7be42fac09d6f6a">More...</a><br/></td></tr>
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<tr class="separator:gacfb200abe644ca56e7be42fac09d6f6a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaf12c54c9b4bab2c1fa19eb1e81e501a0"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#gaf12c54c9b4bab2c1fa19eb1e81e501a0">EWM_Refresh</a> (EWM_Type *base)</td></tr>
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<tr class="memdesc:gaf12c54c9b4bab2c1fa19eb1e81e501a0"><td class="mdescLeft"> </td><td class="mdescRight">Services the EWM. <a href="#gaf12c54c9b4bab2c1fa19eb1e81e501a0">More...</a><br/></td></tr>
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<tr class="separator:gaf12c54c9b4bab2c1fa19eb1e81e501a0"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<hr/><h2 class="groupheader">Data Structure Documentation</h2>
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<a name="a00374" id="a00374"></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">struct _ewm_config</td>
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</table>
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</div><div class="memdoc">
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<div class="textblock"><p>This structure is used to configure the EWM. </p>
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</div><table class="memberdecls">
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<tr><td colspan="2"><h3>Data Fields</h3></td></tr>
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<tr class="memitem:a721b39a7125a002d309ed2730923ddf4"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a721b39a7125a002d309ed2730923ddf4"></a>
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bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#a721b39a7125a002d309ed2730923ddf4">enableEwm</a></td></tr>
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<tr class="memdesc:a721b39a7125a002d309ed2730923ddf4"><td class="mdescLeft"> </td><td class="mdescRight">Enable EWM module. <br/></td></tr>
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<tr class="memitem:aca72969e7d8f49e636e0d93736a7c99e"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aca72969e7d8f49e636e0d93736a7c99e"></a>
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bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#aca72969e7d8f49e636e0d93736a7c99e">enableEwmInput</a></td></tr>
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<tr class="memdesc:aca72969e7d8f49e636e0d93736a7c99e"><td class="mdescLeft"> </td><td class="mdescRight">Enable EWM_in input. <br/></td></tr>
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<tr class="separator:aca72969e7d8f49e636e0d93736a7c99e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ac9ce6fe81b13f2119fecce81d1062acb"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ac9ce6fe81b13f2119fecce81d1062acb"></a>
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bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#ac9ce6fe81b13f2119fecce81d1062acb">setInputAssertLogic</a></td></tr>
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<tr class="memdesc:ac9ce6fe81b13f2119fecce81d1062acb"><td class="mdescLeft"> </td><td class="mdescRight">EWM_in signal assertion state. <br/></td></tr>
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<tr class="separator:ac9ce6fe81b13f2119fecce81d1062acb"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a9feb1567912e3a5d9743b108476c532d"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a9feb1567912e3a5d9743b108476c532d"></a>
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bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#a9feb1567912e3a5d9743b108476c532d">enableInterrupt</a></td></tr>
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<tr class="memdesc:a9feb1567912e3a5d9743b108476c532d"><td class="mdescLeft"> </td><td class="mdescRight">Enable EWM interrupt. <br/></td></tr>
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<tr class="separator:a9feb1567912e3a5d9743b108476c532d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ab1476ef53b6b1d18af407deeeac615c9"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab1476ef53b6b1d18af407deeeac615c9"></a>
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<a class="el" href="a00026.html#gae00e062b2bb5111afe589858657db5c4">ewm_lpo_clock_source_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#ab1476ef53b6b1d18af407deeeac615c9">clockSource</a></td></tr>
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<tr class="memdesc:ab1476ef53b6b1d18af407deeeac615c9"><td class="mdescLeft"> </td><td class="mdescRight">Clock source select. <br/></td></tr>
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<tr class="separator:ab1476ef53b6b1d18af407deeeac615c9"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a981bdcc31c825ad9d845c7b76068d0ff"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a981bdcc31c825ad9d845c7b76068d0ff"></a>
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uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#a981bdcc31c825ad9d845c7b76068d0ff">prescaler</a></td></tr>
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<tr class="memdesc:a981bdcc31c825ad9d845c7b76068d0ff"><td class="mdescLeft"> </td><td class="mdescRight">Clock prescaler value. <br/></td></tr>
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<tr class="separator:a981bdcc31c825ad9d845c7b76068d0ff"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a8038c11c3fddfd2f4ea4c6f7b39b8011"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a8038c11c3fddfd2f4ea4c6f7b39b8011"></a>
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uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#a8038c11c3fddfd2f4ea4c6f7b39b8011">compareLowValue</a></td></tr>
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<tr class="memdesc:a8038c11c3fddfd2f4ea4c6f7b39b8011"><td class="mdescLeft"> </td><td class="mdescRight">Compare low-register value. <br/></td></tr>
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<tr class="separator:a8038c11c3fddfd2f4ea4c6f7b39b8011"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ae304c8c887c67f28a9e72e182d28962c"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ae304c8c887c67f28a9e72e182d28962c"></a>
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uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="a00026.html#ae304c8c887c67f28a9e72e182d28962c">compareHighValue</a></td></tr>
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<tr class="memdesc:ae304c8c887c67f28a9e72e182d28962c"><td class="mdescLeft"> </td><td class="mdescRight">Compare high-register value. <br/></td></tr>
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<tr class="separator:ae304c8c887c67f28a9e72e182d28962c"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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</div>
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</div>
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<h2 class="groupheader">Macro Definition Documentation</h2>
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<a class="anchor" id="ga13413f9927ed720755dc3e98f77ecba2"></a>
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<td class="memname">#define FSL_EWM_DRIVER_VERSION   (<a class="el" href="a00272.html#ga812138aa3315b0c6953c1a26130bcc37">MAKE_VERSION</a>(2, 0, 3))</td>
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</tr>
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</table>
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</div><div class="memdoc">
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</div>
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<h2 class="groupheader">Typedef Documentation</h2>
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<a class="anchor" id="gae00e062b2bb5111afe589858657db5c4"></a>
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<td class="memname">typedef enum <a class="el" href="a00026.html#ga658124565e189a5a884a591828b81c66">_ewm_lpo_clock_source</a> <a class="el" href="a00026.html#gae00e062b2bb5111afe589858657db5c4">ewm_lpo_clock_source_t</a></td>
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</table>
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</div><div class="memdoc">
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</div>
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</div>
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<a class="anchor" id="ga729f4f8aeb5909642d0f0eaecfac593b"></a>
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<td class="memname">typedef struct <a class="el" href="a00026.html#a00374">_ewm_config</a> <a class="el" href="a00026.html#ga729f4f8aeb5909642d0f0eaecfac593b">ewm_config_t</a></td>
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</table>
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</div><div class="memdoc">
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<p>This structure is used to configure the EWM. </p>
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</div>
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<h2 class="groupheader">Enumeration Type Documentation</h2>
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<a class="anchor" id="ga658124565e189a5a884a591828b81c66"></a>
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<tr>
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<td class="memname">enum <a class="el" href="a00026.html#ga658124565e189a5a884a591828b81c66">_ewm_lpo_clock_source</a></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<table class="fieldtable">
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="gga658124565e189a5a884a591828b81c66aa0c2a939796ded985e86292f3ab48880"></a>kEWM_LpoClockSource0</em> </td><td class="fielddoc">
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<p>EWM clock sourced from lpo_clk[0]. </p>
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</td></tr>
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<tr><td class="fieldname"><em><a class="anchor" id="gga658124565e189a5a884a591828b81c66a87adc9960b9c0ed4d5200c9ebabb87a4"></a>kEWM_LpoClockSource1</em> </td><td class="fielddoc">
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<p>EWM clock sourced from lpo_clk[1]. </p>
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</td></tr>
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<tr><td class="fieldname"><em><a class="anchor" id="gga658124565e189a5a884a591828b81c66a13a8f71a88d5209ecb27f01e8f859d6f"></a>kEWM_LpoClockSource2</em> </td><td class="fielddoc">
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<p>EWM clock sourced from lpo_clk[2]. </p>
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</td></tr>
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<tr><td class="fieldname"><em><a class="anchor" id="gga658124565e189a5a884a591828b81c66a04d8b0bead7ea64e37b8c5cbafaaad8b"></a>kEWM_LpoClockSource3</em> </td><td class="fielddoc">
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<p>EWM clock sourced from lpo_clk[3]. </p>
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</td></tr>
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</table>
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</div>
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</div>
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<a class="anchor" id="gaf1f0321cab3227a897b2e2475ceaec5f"></a>
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<div class="memitem">
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<table class="memname">
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<tr>
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<td class="memname">enum <a class="el" href="a00026.html#gaf1f0321cab3227a897b2e2475ceaec5f">_ewm_interrupt_enable_t</a></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>This structure contains the settings for all of EWM interrupt configurations. </p>
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<table class="fieldtable">
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="ggaf1f0321cab3227a897b2e2475ceaec5fa5bd5d6fb4ae17d0173bda608f54fa0e7"></a>kEWM_InterruptEnable</em> </td><td class="fielddoc">
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<p>Enable the EWM to generate an interrupt. </p>
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</td></tr>
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</table>
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</div>
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<a class="anchor" id="ga8713ae33b98d07c7a0aeae8bf78432d1"></a>
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<tr>
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<td class="memname">enum <a class="el" href="a00026.html#ga8713ae33b98d07c7a0aeae8bf78432d1">_ewm_status_flags_t</a></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>This structure contains the constants for the EWM status flags for use in the EWM functions. </p>
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<table class="fieldtable">
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="gga8713ae33b98d07c7a0aeae8bf78432d1a4d8e2380358f82522dc60a6ca08a55d3"></a>kEWM_RunningFlag</em> </td><td class="fielddoc">
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<p>Running flag, set when EWM is enabled. </p>
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</td></tr>
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</table>
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</div>
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</div>
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<h2 class="groupheader">Function Documentation</h2>
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<a class="anchor" id="gafe731b0ab2d0c9f566784a1d6ee722cc"></a>
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<td class="memname">void EWM_Init </td>
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<td>(</td>
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<td class="paramtype">EWM_Type * </td>
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<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const <a class="el" href="a00026.html#ga729f4f8aeb5909642d0f0eaecfac593b">ewm_config_t</a> * </td>
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<td class="paramname"><em>config</em> </td>
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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>This function is used to initialize the EWM. After calling, the EWM runs immediately according to the configuration. Note that, except for the interrupt enable control bit, other control bits and registers are write once after a CPU reset. Modifying them more than once generates a bus transfer error.</p>
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<p>This is an example. </p>
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<div class="fragment"><div class="line">* <a class="code" href="a00026.html#a00374">ewm_config_t</a> config;</div>
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<div class="line">* <a class="code" href="a00026.html#gac87adab8a628260058e8bee7b849ec67">EWM_GetDefaultConfig</a>(&config);</div>
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<div class="line">* config.<a class="code" href="a00026.html#ae304c8c887c67f28a9e72e182d28962c">compareHighValue</a> = 0xAAU;</div>
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<div class="line">* <a class="code" href="a00026.html#gafe731b0ab2d0c9f566784a1d6ee722cc">EWM_Init</a>(ewm_base,&config);</div>
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<div class="line">* </div>
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</div><!-- fragment --><dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">base</td><td>EWM peripheral base address </td></tr>
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<tr><td class="paramname">config</td><td>The configuration of the EWM </td></tr>
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</table>
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</dd>
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</dl>
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<td class="memname">void EWM_Deinit </td>
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<td>(</td>
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<td class="paramtype">EWM_Type * </td>
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<td class="paramname"><em>base</em></td><td>)</td>
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<td></td>
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</div><div class="memdoc">
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<p>This function is used to shut down the EWM.</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">base</td><td>EWM peripheral base address </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="gac87adab8a628260058e8bee7b849ec67"></a>
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<td class="memname">void EWM_GetDefaultConfig </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="a00026.html#ga729f4f8aeb5909642d0f0eaecfac593b">ewm_config_t</a> * </td>
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<td class="paramname"><em>config</em></td><td>)</td>
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<td></td>
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</div><div class="memdoc">
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<p>This function initializes the EWM configuration structure to default values. The default values are as follows. </p>
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<div class="fragment"><div class="line">* ewmConfig->enableEwm = <span class="keyword">true</span>;</div>
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<div class="line">* ewmConfig->enableEwmInput = <span class="keyword">false</span>;</div>
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<div class="line">* ewmConfig->setInputAssertLogic = <span class="keyword">false</span>;</div>
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<div class="line">* ewmConfig->enableInterrupt = <span class="keyword">false</span>;</div>
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<div class="line">* ewmConfig->ewm_lpo_clock_source_t = <a class="code" href="a00026.html#gga658124565e189a5a884a591828b81c66aa0c2a939796ded985e86292f3ab48880">kEWM_LpoClockSource0</a>;</div>
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<div class="line">* ewmConfig->prescaler = 0;</div>
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<div class="line">* ewmConfig->compareLowValue = 0;</div>
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<div class="line">* ewmConfig->compareHighValue = 0xFEU;</div>
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<div class="line">* </div>
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</div><!-- fragment --><dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">config</td><td>Pointer to the EWM configuration structure. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00026.html#ga729f4f8aeb5909642d0f0eaecfac593b" title="Data structure for EWM configuration. ">ewm_config_t</a> </dd></dl>
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<td class="memname">static void EWM_EnableInterrupts </td>
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<td>(</td>
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<td class="paramtype">EWM_Type * </td>
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<td class="paramname"><em>base</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">uint32_t </td>
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<td class="paramname"><em>mask</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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</td>
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<td class="mlabels-right">
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<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">static</span></span> </td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>This function enables the EWM interrupt.</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">base</td><td>EWM peripheral base address </td></tr>
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<tr><td class="paramname">mask</td><td>The interrupts to enable The parameter can be combination of the following source if defined <ul>
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<li>kEWM_InterruptEnable </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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</div>
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<a class="anchor" id="gacb4ba8a7f7e0bedd5d8acf2e5e185f46"></a>
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<td class="memname">static void EWM_DisableInterrupts </td>
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<td>(</td>
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<td class="paramtype">EWM_Type * </td>
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<td class="paramname"><em>base</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">uint32_t </td>
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<td class="paramname"><em>mask</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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</td>
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<td class="mlabels-right">
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<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">static</span></span> </td>
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</table>
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</div><div class="memdoc">
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<p>This function enables the EWM interrupt.</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">base</td><td>EWM peripheral base address </td></tr>
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<tr><td class="paramname">mask</td><td>The interrupts to disable The parameter can be combination of the following source if defined <ul>
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<li>kEWM_InterruptEnable </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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</div>
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<a class="anchor" id="gacfb200abe644ca56e7be42fac09d6f6a"></a>
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<tr>
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<td class="mlabels-left">
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<table class="memname">
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<tr>
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<td class="memname">static uint32_t EWM_GetStatusFlags </td>
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<td>(</td>
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<td class="paramtype">EWM_Type * </td>
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<td class="paramname"><em>base</em></td><td>)</td>
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<td></td>
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<td class="mlabels-right">
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<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">static</span></span> </td>
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</div><div class="memdoc">
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<p>This function gets all status flags.</p>
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<p>This is an example for getting the running flag. </p>
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<div class="fragment"><div class="line">* uint32_t status;</div>
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<div class="line">* status = <a class="code" href="a00026.html#gacfb200abe644ca56e7be42fac09d6f6a">EWM_GetStatusFlags</a>(ewm_base) & <a class="code" href="a00026.html#gga8713ae33b98d07c7a0aeae8bf78432d1a4d8e2380358f82522dc60a6ca08a55d3">kEWM_RunningFlag</a>;</div>
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<div class="line">* </div>
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</div><!-- fragment --> <dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">base</td><td>EWM peripheral base address </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>State of the status flag: asserted (true) or not-asserted (false).</dd></dl>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00026.html#ga8713ae33b98d07c7a0aeae8bf78432d1" title="EWM status flags. ">_ewm_status_flags_t</a><ul>
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<li>True: a related status flag has been set.</li>
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<li>False: a related status flag is not set. </li>
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</ul>
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</dd></dl>
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</div>
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<a class="anchor" id="gaf12c54c9b4bab2c1fa19eb1e81e501a0"></a>
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<td class="memname">void EWM_Refresh </td>
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<td>(</td>
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<td class="paramtype">EWM_Type * </td>
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<td class="paramname"><em>base</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>This function resets the EWM counter to zero.</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">base</td><td>EWM peripheral base address </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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