📄 cache4.htm
字号:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<meta name="GENERATOR" content="Quadralay WebWorks Publisher Professional Edition 6.0.5">
<meta name="TEMPLATEBASE" content="book_html">
<meta name="LASTUPDATED" content="12/01/03 14:15:36">
<title>12.3 Configuring the caches</title>
<STYLE TYPE="text/css">
<!--
span.Signal { text-transform: uppercase; font-family: Verdana }
-->
</STYLE>
</head>
<body link="#3366CC" vlink="#9999CC" text="#000000" alink="#0000CC" bgcolor="#FFFFFF"
background="images/backgrnd.gif">
<p><img src="images/stlogo.gif" width="106" height="83" align="left"
alt="logo here!"> </p>
<table width="331" border="0" align="right" cellpadding="0" cellspacing="0">
<tr>
<td><a href="os20toc.htm"><img src="images/navtoc.gif" width="84" height="23"
border="0" alt="TOC"> </a></td>
<td><a href="cache3.htm"><img src="images/navprev.gif" width="80" height="23"
border="0" alt="PREV"> </a></td>
<td><a href="cache5.htm"><img src="images/navnext.gif" width="83" height="23"
border="0" alt="NEXT"> </a></td>
<td><a href="os20ix.htm"><img src="images/navidx.gif" width="84" height="23"
border="0" alt="INDEX"> </a></td>
</tr>
</table>
<p><br clear="all">
</p>
<hr align="left">
<blockquote>
<h2>
<a name="1204442"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">12.3 Configuring the caches</font>
</h2><hr>
<p>
<a name="1204443"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">On any ST20 device with a data cache the <font size=2 face=Courier><strong>cache_config_data</strong></font> function is used to configure the data cache to treat certain blocks of memory as cacheable or non-cacheable. </font>
</p>
<p>
<a name="1205180"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif"><em>Note: By default all configurable blocks are set to non-cacheable, therefore for all devices with a data cache, the use of the <font size=2 face=Courier><strong>cache_config_data</strong></font> function is vital to achieve maximum performance.</em></font>
</p>
<a name="1204444"> </a><font size=2 face=Courier><strong>#include <cache.h><br>int cache_config_data( void* <font size=2 face=Courier><strong><em>start_address</em></strong></font>,<br>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -