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Added doxygen output of current emulator branch.

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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> &raquo; <a class="el" href="group___c_a_n.html">CAN</a> &raquo; <a class="el" href="group___c_a_n___private___functions.html">CAN_Private_Functions</a></div></div> </div>
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<p>Interrupts and flags management functions.
<a href="#details">More...</a></p>
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Collaboration diagram for Interrupts and flags management functions:</div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gad1a8b2499a780b5bfa4accb3597b02f4"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_a_n___group6.html#gad1a8b2499a780b5bfa4accb3597b02f4">CAN_ITConfig</a> (<a class="el" href="struct_c_a_n___type_def.html">CAN_TypeDef</a> *CANx, uint32_t CAN_IT, FunctionalState NewState)</td></tr>
<tr class="memdesc:gad1a8b2499a780b5bfa4accb3597b02f4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Enables or disables the specified CANx interrupts. <a href="#gad1a8b2499a780b5bfa4accb3597b02f4">More...</a><br /></td></tr>
<tr class="separator:gad1a8b2499a780b5bfa4accb3597b02f4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga2faad96caf823ef463cc5b5b25c480bb"><td class="memItemLeft" align="right" valign="top">FlagStatus&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_a_n___group6.html#ga2faad96caf823ef463cc5b5b25c480bb">CAN_GetFlagStatus</a> (<a class="el" href="struct_c_a_n___type_def.html">CAN_TypeDef</a> *CANx, uint32_t CAN_FLAG)</td></tr>
<tr class="memdesc:ga2faad96caf823ef463cc5b5b25c480bb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Checks whether the specified CAN flag is set or not. <a href="#ga2faad96caf823ef463cc5b5b25c480bb">More...</a><br /></td></tr>
<tr class="separator:ga2faad96caf823ef463cc5b5b25c480bb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga2c01646d5d3a2d7045e8dd71f58f8742"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_a_n___group6.html#ga2c01646d5d3a2d7045e8dd71f58f8742">CAN_ClearFlag</a> (<a class="el" href="struct_c_a_n___type_def.html">CAN_TypeDef</a> *CANx, uint32_t CAN_FLAG)</td></tr>
<tr class="memdesc:ga2c01646d5d3a2d7045e8dd71f58f8742"><td class="mdescLeft">&#160;</td><td class="mdescRight">Clears the CAN's pending flags. <a href="#ga2c01646d5d3a2d7045e8dd71f58f8742">More...</a><br /></td></tr>
<tr class="separator:ga2c01646d5d3a2d7045e8dd71f58f8742"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga9aca05b3013e1b3438f3559f80b33c82"><td class="memItemLeft" align="right" valign="top">ITStatus&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_a_n___group6.html#ga9aca05b3013e1b3438f3559f80b33c82">CAN_GetITStatus</a> (<a class="el" href="struct_c_a_n___type_def.html">CAN_TypeDef</a> *CANx, uint32_t CAN_IT)</td></tr>
<tr class="memdesc:ga9aca05b3013e1b3438f3559f80b33c82"><td class="mdescLeft">&#160;</td><td class="mdescRight">Checks whether the specified CANx interrupt has occurred or not. <a href="#ga9aca05b3013e1b3438f3559f80b33c82">More...</a><br /></td></tr>
<tr class="separator:ga9aca05b3013e1b3438f3559f80b33c82"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga30bf7ac0c1793f6622a4a1adbb7dbc8a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_a_n___group6.html#ga30bf7ac0c1793f6622a4a1adbb7dbc8a">CAN_ClearITPendingBit</a> (<a class="el" href="struct_c_a_n___type_def.html">CAN_TypeDef</a> *CANx, uint32_t CAN_IT)</td></tr>
<tr class="memdesc:ga30bf7ac0c1793f6622a4a1adbb7dbc8a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Clears the CANx's interrupt pending bits. <a href="#ga30bf7ac0c1793f6622a4a1adbb7dbc8a">More...</a><br /></td></tr>
<tr class="separator:ga30bf7ac0c1793f6622a4a1adbb7dbc8a"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>Interrupts and flags management functions. </p>
<pre class="fragment"> ===============================================================================
##### Interrupts and flags management functions #####
===============================================================================
[..] This section provides functions allowing to configure the CAN Interrupts
and to get the status and clear flags and Interrupts pending bits.
The CAN provides 14 Interrupts sources and 15 Flags:
*** Flags ***
=============
[..] The 15 flags can be divided on 4 groups:
(+) Transmit Flags
(++) CAN_FLAG_RQCP0,
(++) CAN_FLAG_RQCP1,
(++) CAN_FLAG_RQCP2 : Request completed MailBoxes 0, 1 and 2 Flags
Set when when the last request (transmit or abort)
has been performed.
(+) Receive Flags
(++) CAN_FLAG_FMP0,
(++) CAN_FLAG_FMP1 : FIFO 0 and 1 Message Pending Flags
set to signal that messages are pending in the receive
FIFO.
These Flags are cleared only by hardware.
(++) CAN_FLAG_FF0,
(++) CAN_FLAG_FF1 : FIFO 0 and 1 Full Flags
set when three messages are stored in the selected
FIFO.
(++) CAN_FLAG_FOV0
(++) CAN_FLAG_FOV1 : FIFO 0 and 1 Overrun Flags
set when a new message has been received and passed
the filter while the FIFO was full.
(+) Operating Mode Flags
(++) CAN_FLAG_WKU : Wake up Flag
set to signal that a SOF bit has been detected while
the CAN hardware was in Sleep mode.
(++) CAN_FLAG_SLAK : Sleep acknowledge Flag
Set to signal that the CAN has entered Sleep Mode.
(+) Error Flags
(++) CAN_FLAG_EWG : Error Warning Flag
Set when the warning limit has been reached (Receive
Error Counter or Transmit Error Counter greater than 96).
This Flag is cleared only by hardware.
(++) CAN_FLAG_EPV : Error Passive Flag
Set when the Error Passive limit has been reached
(Receive Error Counter or Transmit Error Counter
greater than 127).
This Flag is cleared only by hardware.
(++) CAN_FLAG_BOF : Bus-Off Flag
set when CAN enters the bus-off state. The bus-off
state is entered on TEC overflow, greater than 255.
This Flag is cleared only by hardware.
(++) CAN_FLAG_LEC : Last error code Flag
set If a message has been transferred (reception or
transmission) with error, and the error code is hold.
*** Interrupts ***
==================
[..] The 14 interrupts can be divided on 4 groups:
(+) Transmit interrupt
(++) CAN_IT_TME : Transmit mailbox empty Interrupt
if enabled, this interrupt source is pending when
no transmit request are pending for Tx mailboxes.
(+) Receive Interrupts
(++) CAN_IT_FMP0,
(++) CAN_IT_FMP1 : FIFO 0 and FIFO1 message pending Interrupts
if enabled, these interrupt sources are pending
when messages are pending in the receive FIFO.
The corresponding interrupt pending bits are cleared
only by hardware.
(++) CAN_IT_FF0,
(++) CAN_IT_FF1 : FIFO 0 and FIFO1 full Interrupts
if enabled, these interrupt sources are pending
when three messages are stored in the selected FIFO.
(++) CAN_IT_FOV0,
(++) CAN_IT_FOV1 : FIFO 0 and FIFO1 overrun Interrupts
if enabled, these interrupt sources are pending
when a new message has been received and passed
the filter while the FIFO was full.
(+) Operating Mode Interrupts
(++) CAN_IT_WKU : Wake-up Interrupt
if enabled, this interrupt source is pending when
a SOF bit has been detected while the CAN hardware
was in Sleep mode.
(++) CAN_IT_SLK : Sleep acknowledge Interrupt
if enabled, this interrupt source is pending when
the CAN has entered Sleep Mode.
(+) Error Interrupts
(++) CAN_IT_EWG : Error warning Interrupt
if enabled, this interrupt source is pending when
the warning limit has been reached (Receive Error
Counter or Transmit Error Counter=96).
(++) CAN_IT_EPV : Error passive Interrupt
if enabled, this interrupt source is pending when
the Error Passive limit has been reached (Receive
Error Counter or Transmit Error Counter&gt;127).
(++) CAN_IT_BOF : Bus-off Interrupt
if enabled, this interrupt source is pending when
CAN enters the bus-off state. The bus-off state is
entered on TEC overflow, greater than 255.
This Flag is cleared only by hardware.
(++) CAN_IT_LEC : Last error code Interrupt
if enabled, this interrupt source is pending when
a message has been transferred (reception or
transmission) with error, and the error code is hold.
(++) CAN_IT_ERR : Error Interrupt
if enabled, this interrupt source is pending when
an error condition is pending.
[..] Managing the CAN controller events :
The user should identify which mode will be used in his application to
manage the CAN controller events: Polling mode or Interrupt mode.
(#) In the Polling Mode it is advised to use the following functions:
(++) CAN_GetFlagStatus() : to check if flags events occur.
(++) CAN_ClearFlag() : to clear the flags events.
(#) In the Interrupt Mode it is advised to use the following functions:
(++) CAN_ITConfig() : to enable or disable the interrupt source.
(++) CAN_GetITStatus() : to check if Interrupt occurs.
(++) CAN_ClearITPendingBit() : to clear the Interrupt pending Bit
(corresponding Flag).
-@@- This function has no impact on CAN_IT_FMP0 and CAN_IT_FMP1 Interrupts
pending bits since there are cleared only by hardware. </pre> <h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="ga2c01646d5d3a2d7045e8dd71f58f8742"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void CAN_ClearFlag </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_c_a_n___type_def.html">CAN_TypeDef</a> *&#160;</td>
<td class="paramname"><em>CANx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>CAN_FLAG</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Clears the CAN's pending flags. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">CANx</td><td>where x can be 1 or 2 to to select the CAN peripheral. </td></tr>
<tr><td class="paramname">CAN_FLAG</td><td>specifies the flag to clear. This parameter can be one of the following values: <ul>
<li>CAN_FLAG_RQCP0: Request MailBox0 Flag </li>
<li>CAN_FLAG_RQCP1: Request MailBox1 Flag </li>
<li>CAN_FLAG_RQCP2: Request MailBox2 Flag </li>
<li>CAN_FLAG_FF0: FIFO 0 Full Flag </li>
<li>CAN_FLAG_FOV0: FIFO 0 Overrun Flag </li>
<li>CAN_FLAG_FF1: FIFO 1 Full Flag </li>
<li>CAN_FLAG_FOV1: FIFO 1 Overrun Flag </li>
<li>CAN_FLAG_WKU: Wake up Flag </li>
<li>CAN_FLAG_SLAK: Sleep acknowledge Flag </li>
<li>CAN_FLAG_LEC: Last error code Flag </li>
</ul>
</td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">None</td><td></td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ga30bf7ac0c1793f6622a4a1adbb7dbc8a"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void CAN_ClearITPendingBit </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_c_a_n___type_def.html">CAN_TypeDef</a> *&#160;</td>
<td class="paramname"><em>CANx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>CAN_IT</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Clears the CANx's interrupt pending bits. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">CANx</td><td>where x can be 1 or 2 to to select the CAN peripheral. </td></tr>
<tr><td class="paramname">CAN_IT</td><td>specifies the interrupt pending bit to clear. This parameter can be one of the following values: <ul>
<li>CAN_IT_TME: Transmit mailbox empty Interrupt </li>
<li>CAN_IT_FF0: FIFO 0 full Interrupt </li>
<li>CAN_IT_FOV0: FIFO 0 overrun Interrupt </li>
<li>CAN_IT_FF1: FIFO 1 full Interrupt </li>
<li>CAN_IT_FOV1: FIFO 1 overrun Interrupt </li>
<li>CAN_IT_WKU: Wake-up Interrupt </li>
<li>CAN_IT_SLK: Sleep acknowledge Interrupt </li>
<li>CAN_IT_EWG: Error warning Interrupt </li>
<li>CAN_IT_EPV: Error passive Interrupt </li>
<li>CAN_IT_BOF: Bus-off Interrupt </li>
<li>CAN_IT_LEC: Last error code Interrupt </li>
<li>CAN_IT_ERR: Error Interrupt </li>
</ul>
</td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">None</td><td></td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ga2faad96caf823ef463cc5b5b25c480bb"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">FlagStatus CAN_GetFlagStatus </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_c_a_n___type_def.html">CAN_TypeDef</a> *&#160;</td>
<td class="paramname"><em>CANx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>CAN_FLAG</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Checks whether the specified CAN flag is set or not. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">CANx</td><td>where x can be 1 or 2 to to select the CAN peripheral. </td></tr>
<tr><td class="paramname">CAN_FLAG</td><td>specifies the flag to check. This parameter can be one of the following values: <ul>
<li>CAN_FLAG_RQCP0: Request MailBox0 Flag </li>
<li>CAN_FLAG_RQCP1: Request MailBox1 Flag </li>
<li>CAN_FLAG_RQCP2: Request MailBox2 Flag </li>
<li>CAN_FLAG_FMP0: FIFO 0 Message Pending Flag </li>
<li>CAN_FLAG_FF0: FIFO 0 Full Flag </li>
<li>CAN_FLAG_FOV0: FIFO 0 Overrun Flag </li>
<li>CAN_FLAG_FMP1: FIFO 1 Message Pending Flag </li>
<li>CAN_FLAG_FF1: FIFO 1 Full Flag </li>
<li>CAN_FLAG_FOV1: FIFO 1 Overrun Flag </li>
<li>CAN_FLAG_WKU: Wake up Flag </li>
<li>CAN_FLAG_SLAK: Sleep acknowledge Flag </li>
<li>CAN_FLAG_EWG: Error Warning Flag </li>
<li>CAN_FLAG_EPV: Error Passive Flag </li>
<li>CAN_FLAG_BOF: Bus-Off Flag </li>
<li>CAN_FLAG_LEC: Last error code Flag </li>
</ul>
</td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">The</td><td>new state of CAN_FLAG (SET or RESET). </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ga9aca05b3013e1b3438f3559f80b33c82"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">ITStatus CAN_GetITStatus </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_c_a_n___type_def.html">CAN_TypeDef</a> *&#160;</td>
<td class="paramname"><em>CANx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>CAN_IT</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Checks whether the specified CANx interrupt has occurred or not. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">CANx</td><td>where x can be 1 or 2 to to select the CAN peripheral. </td></tr>
<tr><td class="paramname">CAN_IT</td><td>specifies the CAN interrupt source to check. This parameter can be one of the following values: <ul>
<li>CAN_IT_TME: Transmit mailbox empty Interrupt </li>
<li>CAN_IT_FMP0: FIFO 0 message pending Interrupt </li>
<li>CAN_IT_FF0: FIFO 0 full Interrupt </li>
<li>CAN_IT_FOV0: FIFO 0 overrun Interrupt </li>
<li>CAN_IT_FMP1: FIFO 1 message pending Interrupt </li>
<li>CAN_IT_FF1: FIFO 1 full Interrupt </li>
<li>CAN_IT_FOV1: FIFO 1 overrun Interrupt </li>
<li>CAN_IT_WKU: Wake-up Interrupt </li>
<li>CAN_IT_SLK: Sleep acknowledge Interrupt </li>
<li>CAN_IT_EWG: Error warning Interrupt </li>
<li>CAN_IT_EPV: Error passive Interrupt </li>
<li>CAN_IT_BOF: Bus-off Interrupt </li>
<li>CAN_IT_LEC: Last error code Interrupt </li>
<li>CAN_IT_ERR: Error Interrupt </li>
</ul>
</td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">The</td><td>current state of CAN_IT (SET or RESET). </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="gad1a8b2499a780b5bfa4accb3597b02f4"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void CAN_ITConfig </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_c_a_n___type_def.html">CAN_TypeDef</a> *&#160;</td>
<td class="paramname"><em>CANx</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>CAN_IT</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">FunctionalState&#160;</td>
<td class="paramname"><em>NewState</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Enables or disables the specified CANx interrupts. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">CANx</td><td>where x can be 1 or 2 to to select the CAN peripheral. </td></tr>
<tr><td class="paramname">CAN_IT</td><td>specifies the CAN interrupt sources to be enabled or disabled. This parameter can be: <ul>
<li>CAN_IT_TME: Transmit mailbox empty Interrupt </li>
<li>CAN_IT_FMP0: FIFO 0 message pending Interrupt </li>
<li>CAN_IT_FF0: FIFO 0 full Interrupt </li>
<li>CAN_IT_FOV0: FIFO 0 overrun Interrupt </li>
<li>CAN_IT_FMP1: FIFO 1 message pending Interrupt </li>
<li>CAN_IT_FF1: FIFO 1 full Interrupt </li>
<li>CAN_IT_FOV1: FIFO 1 overrun Interrupt </li>
<li>CAN_IT_WKU: Wake-up Interrupt </li>
<li>CAN_IT_SLK: Sleep acknowledge Interrupt </li>
<li>CAN_IT_EWG: Error warning Interrupt </li>
<li>CAN_IT_EPV: Error passive Interrupt </li>
<li>CAN_IT_BOF: Bus-off Interrupt </li>
<li>CAN_IT_LEC: Last error code Interrupt </li>
<li>CAN_IT_ERR: Error Interrupt </li>
</ul>
</td></tr>
<tr><td class="paramname">NewState</td><td>new state of the CAN interrupts. This parameter can be: ENABLE or DISABLE. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">None</td><td></td></tr>
</table>
</dd>
</dl>
</div>
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