basic-dhrystone-project.html

来自「Development tools for the AT91CAP9-DK.Ex」· HTML 代码 · 共 97 行

HTML
97 行
字号 
<!DOCTYPE PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
    <head>
        <title>Atmel Corporation - Basic Dhrystone 1.4</title>
        <link rel="stylesheet" type="text/css" href="css/style.css" />
    </head>
    
    <body>
        <h1>Basic Dhrystone Project 1.4</h1>

        <div id="breadcrumb">
            <a href="../index.html">Main</a> >
            <a href="examples.html">Examples</a> >
            Dhrystone
        </div>

        <h2>Purpose</h2>
        <p>
            This application measures how many dhrystone per seconds that the chip can
            produce under several different configurations.
        </p>

        <div class="requirements">
            <h2>Hardware Requirements</h2>
            <p>
                This package can be used with the following Atmel evaluation kits:
                <ul>
                    <li>AT91SAM7S-EK</li>
                    <li>AT91SAM7A3-EK</li>
                    <li>AT91SAM7SE-EK</li>
                    <li>AT91SAM7X-EK</li>
                    <li>AT91SAM9261-EK</li>
                    <li>AT91SAM9263-EK</li>
                    <li>AT91SAM9RL-EK</li>
                    <li>AT91SAM9XE-EK</li>
                    <li>AT91SAM9G20-EK</li>
                    <li>AT91CAP9-DK</li>
                    <li>AT91CAP9-STK</li>
                </ul>
            </p>
        </div>

        <h2>Description</h2>
        <p>
            When launched, this program displays a menu on the DBGU, enabling the user
            to choose between several options:
            <ul>
                <li>Change the processor & master clock frequencies</li>
                <li>Enable or disable the processor instruction cache (SAM9 only)</li>
                <li>Start a dhrystone measurement</li>
            </ul>
        </p>
       
        <h2>Usage</h2>
        <ol>
            <li>
                Build the program and download it inside the evaluation board.  Please refer
                to the <a href="http://www.atmel.com/dyn/resources/prod_documents/doc6132.pdf">SAM-BA User Guide</a>,
                the <a href="http://www.atmel.com/dyn/resources/prod_documents/doc6310.pdf">GNU-Based Software Development</a>
                application note or to the <a href="http://www.iar.se/website1/1.0.1.0/78/1/index.php?">IAR EWARM User Guide</a>,
                depending on your chosen solution.
            </li>
            <li>
                On the computer, open the DBGU port with a terminal application
                (e.g. HyperTerminal on Microsoft Windows).
            </li>
            <ul>
                <li>Settings: 115200 bauds, 8 bits, 1 stop bit, no parity, no flow control.</li>
            </ul>
            <li>
                Start the application.
            </li>
            <li>
                The application menu should appear as shown below (example for AT91SAM9263):
                <blockquote>
                    <code>
                        -- Basic Dhrystone Project 1.4 --<br />
                        <br />
                        Menu :<br />
                        ------<br />
                          0: Set PCK = 240 MHz, MCK = 120 MHz<br />
                          1: Set PCK = 120 MHz, MCK = 120 MHz<br />
                          2: Set PCK =  96 MHz, MCK =  48 MHz<br />
                          3: Set PCK =  48 MHz, MCK =  48 MHz<br />
                          i: Toggle instruction cache<br />
                          m: Perform measurements<br />
                          h: Display this menu again<br />
                    </code>
                </blockquote>
                Select one or more options to set the configuration of the device, then
                start a measurement by typing 'm'.
            </li>
        </ol>
        <h6>Atmel Corporation ©2008</h6>
    </body>
</html>

basic-dhrystone-project.html - 源码说明

本页面展示了「Development tools for the AT91CAP9-DK.Examples on how to use the AT91CAP9-DK features and peripheral」中的 basic-dhrystone-project.html 源码文件，采用 HTML 编程语言编写，共 97 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

虫虫开发者社区收录了大量与AT91CAP9相关的技术资源，包括源代码、技术文档、电路图等，是电子工程师和嵌入式开发者的专业学习平台。

⌨️ 快捷键说明

复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?