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<h2>
<a name="1269916"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">cache_enable_instruction</font>
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<p>
<a name="1205744"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">Enable the instruction cache</font>
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<h3>
<a name="1205745"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">Synopsis</font>
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<a name="1205746"> </a><font size=2 face=Courier><strong>#include <cache.h><br></strong></font>
<a name="1270981"> </a><font size=2 face=Courier><strong>int cache_enable_instruction( void );<br></strong></font>
<h3>
<a name="1205748"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">Arguments</font>
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<a name="1205749"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">None</font>
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<h3>
<a name="1205751"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">Results</font>
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<a name="1205752"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">Returns <font size=2 face=Courier><strong>0</strong></font> on success, <font size=2 face=Courier><strong>-1</strong></font> if an error occurs.</font>
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<a name="1205753"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">Errors</font>
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<a name="1205754"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">Returns <font size=2 face=Courier><strong>-1</strong></font> if the cache registers have been locked or if the instruction cache is already enabled.</font>
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<h3>
<a name="1205755"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">Description</font>
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<p>
<a name="1205756"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">This function enables the instruction cache by writing to the <span class=Signal>EnableICache</span> register.</font>
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<p>
<a name="1205757"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">If the target device has a configurable instruction cache then this should be configured before enabling the instruction cache by making calls to <font size=2 face=Courier><strong>cache_config_instruction</strong></font>.</font>
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<h3>
<a name="1205758"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">Callable from</font>
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<p>
<a name="1205759"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">A task, interrupt service routine or a high priority process (on an ST20C2).</font>
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<a name="1205760"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">See also</font>
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<a name="1205761"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif"><a href="libs4.htm#1205623"><font color="#0000ff" face="Verdana, Arial, Helvetica, sans-serif"><i>cache_config_instruction</i></font></a>, <a href="libs7.htm#1205722"><font color="#0000ff" face="Verdana, Arial, Helvetica, sans-serif"><i>cache_enable_data</i></font></a></font>
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