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Xilinx Driver scutimer v2_0: xscutimer.c File Reference
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<h1>xscutimer.c File Reference</h1><code>#include "<a class="el" href="xscutimer_8h.html">xscutimer.h</a>"</code><br/>
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<tr><td colspan="2"><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="xscutimer_8c.html#ae35db1bdd114423a1e7fa858ffb8336f">XScuTimer_CfgInitialize</a> (<a class="el" href="struct_x_scu_timer.html">XScuTimer</a> *InstancePtr, <a class="el" href="struct_x_scu_timer___config.html">XScuTimer_Config</a> *ConfigPtr, u32 EffectiveAddress)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="xscutimer_8c.html#abf24fad576d3adab4b53eebdef424bde">XScuTimer_Start</a> (<a class="el" href="struct_x_scu_timer.html">XScuTimer</a> *InstancePtr)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="xscutimer_8c.html#aac0376fbfeb5c29bb44403d6fefd0843">XScuTimer_Stop</a> (<a class="el" href="struct_x_scu_timer.html">XScuTimer</a> *InstancePtr)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="xscutimer_8c.html#ac6cd65141b00c0d1940d0b8f2a081faf">XScuTimer_SetPrescaler</a> (<a class="el" href="struct_x_scu_timer.html">XScuTimer</a> *InstancePtr, u8 PrescalerValue)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">u8 </td><td class="memItemRight" valign="bottom"><a class="el" href="xscutimer_8c.html#a56d8c36e4aa28168de3ba5d7f87feb2d">XScuTimer_GetPrescaler</a> (<a class="el" href="struct_x_scu_timer.html">XScuTimer</a> *InstancePtr)</td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>Contains the implementation of interface functions of the SCU Timer driver. See <a class="el" href="xscutimer_8h.html">xscutimer.h</a> for a description of the driver.</p>
<pre>
MODIFICATION HISTORY:</pre><pre> Ver Who Date Changes
----- --- -------- ---------------------------------------------
1.00a nm 03/10/10 First release
</pre> <hr/><h2>Function Documentation</h2>
<a class="anchor" id="ae35db1bdd114423a1e7fa858ffb8336f"></a><!-- doxytag: member="xscutimer.c::XScuTimer_CfgInitialize" ref="ae35db1bdd114423a1e7fa858ffb8336f" args="(XScuTimer *InstancePtr, XScuTimer_Config *ConfigPtr, u32 EffectiveAddress)" -->
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<td class="memname">int XScuTimer_CfgInitialize </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_x_scu_timer.html">XScuTimer</a> * </td>
<td class="paramname"> <em>InstancePtr</em>, </td>
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<td class="paramtype"><a class="el" href="struct_x_scu_timer___config.html">XScuTimer_Config</a> * </td>
<td class="paramname"> <em>ConfigPtr</em>, </td>
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<td class="paramtype">u32 </td>
<td class="paramname"> <em>EffectiveAddress</em></td><td> </td>
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<p>Initialize a specific timer instance/driver. This function must be called before other functions of the driver are called.</p>
<dl><dt><b>Parameters:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em>InstancePtr</em> </td><td>is a pointer to the <a class="el" href="struct_x_scu_timer.html">XScuTimer</a> instance. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>ConfigPtr</em> </td><td>points to the <a class="el" href="struct_x_scu_timer.html">XScuTimer</a> configuration structure. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>EffectiveAddress</em> </td><td>is the base address for the device. It could be a virtual address if address translation is supported in the system, otherwise it is the physical address.</td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd><ul>
<li>XST_SUCCESS if initialization was successful.</li>
<li>XST_DEVICE_IS_STARTED if the device has already been started.</li>
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</dd></dl>
<dl class="note"><dt><b>Note:</b></dt><dd>None. </dd></dl>
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<a class="anchor" id="a56d8c36e4aa28168de3ba5d7f87feb2d"></a><!-- doxytag: member="xscutimer.c::XScuTimer_GetPrescaler" ref="a56d8c36e4aa28168de3ba5d7f87feb2d" args="(XScuTimer *InstancePtr)" -->
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<td class="memname">u8 XScuTimer_GetPrescaler </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_x_scu_timer.html">XScuTimer</a> * </td>
<td class="paramname"> <em>InstancePtr</em></td>
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<p>This function returns the current prescaler value.</p>
<dl><dt><b>Parameters:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em>InstancePtr</em> </td><td>is a pointer to the <a class="el" href="struct_x_scu_timer.html">XScuTimer</a> instance.</td></tr>
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</dd>
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<dl class="return"><dt><b>Returns:</b></dt><dd>The prescaler value.</dd></dl>
<dl class="note"><dt><b>Note:</b></dt><dd>None. </dd></dl>
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<a class="anchor" id="ac6cd65141b00c0d1940d0b8f2a081faf"></a><!-- doxytag: member="xscutimer.c::XScuTimer_SetPrescaler" ref="ac6cd65141b00c0d1940d0b8f2a081faf" args="(XScuTimer *InstancePtr, u8 PrescalerValue)" -->
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<td class="memname">void XScuTimer_SetPrescaler </td>
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<td class="paramtype"><a class="el" href="struct_x_scu_timer.html">XScuTimer</a> * </td>
<td class="paramname"> <em>InstancePtr</em>, </td>
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<td class="paramtype">u8 </td>
<td class="paramname"> <em>PrescalerValue</em></td><td> </td>
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<p>This function sets the prescaler bits in the timer control register.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>InstancePtr</em> </td><td>is a pointer to the <a class="el" href="struct_x_scu_timer.html">XScuTimer</a> instance. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>PrescalerValue</em> </td><td>is a 8 bit value that sets the prescaler to use.</td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>None</dd></dl>
<dl class="note"><dt><b>Note:</b></dt><dd>None </dd></dl>
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<a class="anchor" id="abf24fad576d3adab4b53eebdef424bde"></a><!-- doxytag: member="xscutimer.c::XScuTimer_Start" ref="abf24fad576d3adab4b53eebdef424bde" args="(XScuTimer *InstancePtr)" -->
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<td class="memname">void XScuTimer_Start </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_x_scu_timer.html">XScuTimer</a> * </td>
<td class="paramname"> <em>InstancePtr</em></td>
<td> ) </td>
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<p>Start the timer.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>InstancePtr</em> </td><td>is a pointer to the <a class="el" href="struct_x_scu_timer.html">XScuTimer</a> instance.</td></tr>
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</dd>
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<dl class="return"><dt><b>Returns:</b></dt><dd>None.</dd></dl>
<dl class="note"><dt><b>Note:</b></dt><dd>None. </dd></dl>
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<a class="anchor" id="aac0376fbfeb5c29bb44403d6fefd0843"></a><!-- doxytag: member="xscutimer.c::XScuTimer_Stop" ref="aac0376fbfeb5c29bb44403d6fefd0843" args="(XScuTimer *InstancePtr)" -->
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<td class="memname">void XScuTimer_Stop </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_x_scu_timer.html">XScuTimer</a> * </td>
<td class="paramname"> <em>InstancePtr</em></td>
<td> ) </td>
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<p>Stop the timer.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>InstancePtr</em> </td><td>is a pointer to the <a class="el" href="struct_x_scu_timer.html">XScuTimer</a> instance.</td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>None.</dd></dl>
<dl class="note"><dt><b>Note:</b></dt><dd>None. </dd></dl>
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