Updated GPIO Utility Guide for IMX8MP and added documentation for GPIO, and UART + fixed effected pages for RB5

Author: hedgehog-menn

smarc/ipi-smarc-imx8mp/GpioUtility.html

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@@ -142,14 +142,14 @@ <h1 class="article-title" itemprop="name"></h1>
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-                <h1 id="40-Pin-I-x2F-O-Headers-Utility-on-I-Pi-SAMRC-IMX8M-Plus" class="article-heading"><a href="#40-Pin-I-x2F-O-Headers-Utility-on-I-Pi-SAMRC-IMX8M-Plus" class="headerlink" title="40-Pin I&#x2F;O Headers Utility on I-Pi SAMRC IMX8M Plus"></a>40-Pin I&#x2F;O Headers Utility on I-Pi SAMRC IMX8M Plus<a onclick="parent.postMessage( {msg: '?page=GpioUtility.html#40-Pin-I-x2F-O-Headers-Utility-on-I-Pi-SAMRC-IMX8M-Plus'}, '*');" class="article-anchor" href="#40-Pin-I-x2F-O-Headers-Utility-on-I-Pi-SAMRC-IMX8M-Plus" aria-hidden="true"></a></h1><div class="bullets">
+                <h1 id="40-Pin-I-x2F-O-Headers-Utility-on-I-Pi-SMARC-IMX8M-Plus" class="article-heading"><a href="#40-Pin-I-x2F-O-Headers-Utility-on-I-Pi-SMARC-IMX8M-Plus" class="headerlink" title="40-Pin I&#x2F;O Headers Utility on I-Pi SMARC IMX8M Plus"></a>40-Pin I&#x2F;O Headers Utility on I-Pi SMARC IMX8M Plus<a class="article-anchor" href="#40-Pin-I-x2F-O-Headers-Utility-on-I-Pi-SMARC-IMX8M-Plus" aria-hidden="true"></a></h1><div class="bullets">
 This document provides detailed instructions for utilizing the 40-Pin I/O Headers on I-Pi SMARC IMX8M Plus.
 
-<h2 id="Prerequisites" class="article-heading"><a href="#Prerequisites" class="headerlink" title="Prerequisites"></a>Prerequisites<a onclick="parent.postMessage( {msg: '?page=GpioUtility.html#Prerequisites'}, '*');" class="article-anchor" href="#Prerequisites" aria-hidden="true"></a></h2><ul>
+<h2 id="Prerequisites" class="article-heading"><a href="#Prerequisites" class="headerlink" title="Prerequisites"></a>Prerequisites<a class="article-anchor" href="#Prerequisites" aria-hidden="true"></a></h2><ul>
 <li>GPIO libraries are included with our image by default.</li>
 <li>Power up the targeted device with all the necessary cables such as HDMI, keyboard, mouse and ethernet cable.</li>
 </ul>
-<h2 id="Linux-Host" class="article-heading"><a href="#Linux-Host" class="headerlink" title="Linux Host"></a>Linux Host<a onclick="parent.postMessage( {msg: '?page=GpioUtility.html#Linux-Host'}, '*');" class="article-anchor" href="#Linux-Host" aria-hidden="true"></a></h2><h3 id="1-Getting-Started" class="article-heading"><a href="#1-Getting-Started" class="headerlink" title="1. Getting Started"></a>1. Getting Started<a onclick="parent.postMessage( {msg: '?page=GpioUtility.html#1-Getting-Started'}, '*');" class="article-anchor" href="#1-Getting-Started" aria-hidden="true"></a></h3><ul>
+<h2 id="Linux-Host" class="article-heading"><a href="#Linux-Host" class="headerlink" title="Linux Host"></a>Linux Host<a class="article-anchor" href="#Linux-Host" aria-hidden="true"></a></h2><h3 id="1-Getting-Started" class="article-heading"><a href="#1-Getting-Started" class="headerlink" title="1. Getting Started"></a>1. Getting Started<a class="article-anchor" href="#1-Getting-Started" aria-hidden="true"></a></h3><ul>
 <li><p>Install “hexer” for editing the binary files.</p>
 <figure class="highlight shell"><table><tr><td class="code"><pre><span class="line">sudo apt install hexer</span><br></pre></td></tr></table></figure>
 </li>
@@ -162,7 +162,7 @@ <h2 id="Linux-Host" class="article-heading"><a href="#Linux-Host" class="headerl
 <p><strong>Note:</strong> All the commands require administrator privileges and run as root user.</p>
 </li>
 </ul>
-<h3 id="2-Utilizing-the-Pin-Headers-with-Linux" class="article-heading"><a href="#2-Utilizing-the-Pin-Headers-with-Linux" class="headerlink" title="2. Utilizing the Pin Headers with Linux"></a>2. Utilizing the Pin Headers with Linux<a onclick="parent.postMessage( {msg: '?page=GpioUtility.html#2-Utilizing-the-Pin-Headers-with-Linux'}, '*');" class="article-anchor" href="#2-Utilizing-the-Pin-Headers-with-Linux" aria-hidden="true"></a></h3><h4 id="2-1-Voltage-Monitor" class="article-heading"><a href="#2-1-Voltage-Monitor" class="headerlink" title="2.1 Voltage Monitor"></a>2.1 Voltage Monitor<a onclick="parent.postMessage( {msg: '?page=GpioUtility.html#2-1-Voltage-Monitor'}, '*');" class="article-anchor" href="#2-1-Voltage-Monitor" aria-hidden="true"></a></h4><ul>
+<h3 id="2-Utilizing-the-Pin-Headers-with-Linux" class="article-heading"><a href="#2-Utilizing-the-Pin-Headers-with-Linux" class="headerlink" title="2. Utilizing the Pin Headers with Linux"></a>2. Utilizing the Pin Headers with Linux<a class="article-anchor" href="#2-Utilizing-the-Pin-Headers-with-Linux" aria-hidden="true"></a></h3><h4 id="2-1-Voltage-Monitor" class="article-heading"><a href="#2-1-Voltage-Monitor" class="headerlink" title="2.1 Voltage Monitor"></a>2.1 Voltage Monitor<a class="article-anchor" href="#2-1-Voltage-Monitor" aria-hidden="true"></a></h4><ul>
 <li><p>Open the terminal type the following command,</p>
 <figure class="highlight shell"><table><tr><td class="code"><pre><span class="line">cd /sys/class/regulator</span><br></pre></td></tr></table></figure>
 </li>
@@ -176,7 +176,7 @@ <h3 id="2-Utilizing-the-Pin-Headers-with-Linux" class="article-heading"><a href=
 
 <figure class="highlight shell"><table><tr><td class="code"><pre><span class="line">cat regulator.1/name</span><br></pre></td></tr></table></figure></li>
 </ul>
-<h4 id="2-2-GPIO" class="article-heading"><a href="#2-2-GPIO" class="headerlink" title="2.2 GPIO"></a>2.2 GPIO<a onclick="parent.postMessage( {msg: '?page=GpioUtility.html#2-2-GPIO'}, '*');" class="article-anchor" href="#2-2-GPIO" aria-hidden="true"></a></h4><ul>
+<h4 id="2-2-GPIO" class="article-heading"><a href="#2-2-GPIO" class="headerlink" title="2.2 GPIO"></a>2.2 GPIO<a class="article-anchor" href="#2-2-GPIO" aria-hidden="true"></a></h4><ul>
 <li><p>Open the terminal type the following command,</p>
 <figure class="highlight shell"><table><tr><td class="code"><pre><span class="line">cd /sys/class/gpio</span><br></pre></td></tr></table></figure>
 </li>
@@ -199,7 +199,7 @@ <h4 id="2-2-GPIO" class="article-heading"><a href="#2-2-GPIO" class="headerlink"
 <li><p>To write the value of a pin</p>
 <figure class="highlight shell"><table><tr><td class="code"><pre><span class="line">echo 1 &gt; gpio497/value</span><br></pre></td></tr></table></figure></li>
 </ul>
-<h5 id="2-2-1-GPIO-Pin-Configurations" class="article-heading"><a href="#2-2-1-GPIO-Pin-Configurations" class="headerlink" title="2.2.1 GPIO Pin Configurations"></a>2.2.1 GPIO Pin Configurations<a onclick="parent.postMessage( {msg: '?page=GpioUtility.html#2-2-1-GPIO-Pin-Configurations'}, '*');" class="article-anchor" href="#2-2-1-GPIO-Pin-Configurations" aria-hidden="true"></a></h5><ul>
+<h5 id="2-2-1-GPIO-Pin-Configurations" class="article-heading"><a href="#2-2-1-GPIO-Pin-Configurations" class="headerlink" title="2.2.1 GPIO Pin Configurations"></a>2.2.1 GPIO Pin Configurations<a class="article-anchor" href="#2-2-1-GPIO-Pin-Configurations" aria-hidden="true"></a></h5><ul>
 <li><p>On CN1001 expansion connector E_GPIO and S_GPIO is available. These GPIO pins are mapped by to following numbers:</p>
 <p><strong>S_GPIO(MRAA) numbers are:</strong></p>
 <p>​    pin7 - 497</p>
@@ -219,7 +219,7 @@ <h5 id="2-2-1-GPIO-Pin-Configurations" class="article-heading"><a href="#2-2-1-G
 <p>​    pin40 - 469</p>
 </li>
 </ul>
-<h4 id="2-3-Storage" class="article-heading"><a href="#2-3-Storage" class="headerlink" title="2.3 Storage"></a>2.3 Storage<a onclick="parent.postMessage( {msg: '?page=GpioUtility.html#2-3-Storage'}, '*');" class="article-anchor" href="#2-3-Storage" aria-hidden="true"></a></h4><ul>
+<h4 id="2-3-Storage" class="article-heading"><a href="#2-3-Storage" class="headerlink" title="2.3 Storage"></a>2.3 Storage<a class="article-anchor" href="#2-3-Storage" aria-hidden="true"></a></h4><ul>
 <li><p>To read the storage area,</p>
 <p>hexdump &#x2F;sys&#x2F;bus&#x2F;nvmem&#x2F;devices&#x2F;<nvmem index>&#x2F;nvmem</nvmem></p>
 <p>For example:</p>
@@ -232,7 +232,7 @@ <h4 id="2-3-Storage" class="article-heading"><a href="#2-3-Storage" class="heade
 <p>Hexer will open a nvmem file in editor mode. To edit the data press <strong>r</strong> (replace) and enter new data then press <strong>ESC</strong> key and <strong>:wq</strong> to save. Then read the same file using hexdump to check saved changes.</p>
 </li>
 </ul>
-<h4 id="2-4-Backlight" class="article-heading"><a href="#2-4-Backlight" class="headerlink" title="2.4 Backlight"></a>2.4 Backlight<a onclick="parent.postMessage( {msg: '?page=GpioUtility.html#2-4-Backlight'}, '*');" class="article-anchor" href="#2-4-Backlight" aria-hidden="true"></a></h4><ul>
+<h4 id="2-4-Backlight" class="article-heading"><a href="#2-4-Backlight" class="headerlink" title="2.4 Backlight"></a>2.4 Backlight<a class="article-anchor" href="#2-4-Backlight" aria-hidden="true"></a></h4><ul>
 <li><p>Open the terminal type the following command,</p>
 <figure class="highlight shell"><table><tr><td class="code"><pre><span class="line">cd /sys/class/backlight</span><br></pre></td></tr></table></figure>
 </li>
@@ -262,7 +262,7 @@ <h4 id="2-4-Backlight" class="article-heading"><a href="#2-4-Backlight" class="h
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-                <ol class="toc"><li class="toc-item toc-level-1"><a class="toc-link" href="#40-Pin-I-x2F-O-Headers-Utility-on-I-Pi-SAMRC-IMX8M-Plus"><span class="toc-text">40-Pin I&#x2F;O Headers Utility on I-Pi SAMRC IMX8M Plus</span></a><ol class="toc-child"><li class="toc-item toc-level-2"><a class="toc-link" href="#Prerequisites"><span class="toc-text">Prerequisites</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#Linux-Host"><span class="toc-text">Linux Host</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#1-Getting-Started"><span class="toc-text">1. Getting Started</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#2-Utilizing-the-Pin-Headers-with-Linux"><span class="toc-text">2. Utilizing the Pin Headers with Linux</span></a><ol class="toc-child"><li class="toc-item toc-level-4"><a class="toc-link" href="#2-1-Voltage-Monitor"><span class="toc-text">2.1 Voltage Monitor</span></a></li><li class="toc-item toc-level-4"><a class="toc-link" href="#2-2-GPIO"><span class="toc-text">2.2 GPIO</span></a><ol class="toc-child"><li class="toc-item toc-level-5"><a class="toc-link" href="#2-2-1-GPIO-Pin-Configurations"><span class="toc-text">2.2.1 GPIO Pin Configurations</span></a></li></ol></li><li class="toc-item toc-level-4"><a class="toc-link" href="#2-3-Storage"><span class="toc-text">2.3 Storage</span></a></li><li class="toc-item toc-level-4"><a class="toc-link" href="#2-4-Backlight"><span class="toc-text">2.4 Backlight</span></a></li></ol></li></ol></li></ol></li></ol>
+                <ol class="toc"><li class="toc-item toc-level-1"><a class="toc-link" href="#40-Pin-I-x2F-O-Headers-Utility-on-I-Pi-SMARC-IMX8M-Plus"><span class="toc-text">40-Pin I&#x2F;O Headers Utility on I-Pi SMARC IMX8M Plus</span></a><ol class="toc-child"><li class="toc-item toc-level-2"><a class="toc-link" href="#Prerequisites"><span class="toc-text">Prerequisites</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#Linux-Host"><span class="toc-text">Linux Host</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#1-Getting-Started"><span class="toc-text">1. Getting Started</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#2-Utilizing-the-Pin-Headers-with-Linux"><span class="toc-text">2. Utilizing the Pin Headers with Linux</span></a><ol class="toc-child"><li class="toc-item toc-level-4"><a class="toc-link" href="#2-1-Voltage-Monitor"><span class="toc-text">2.1 Voltage Monitor</span></a></li><li class="toc-item toc-level-4"><a class="toc-link" href="#2-2-GPIO"><span class="toc-text">2.2 GPIO</span></a><ol class="toc-child"><li class="toc-item toc-level-5"><a class="toc-link" href="#2-2-1-GPIO-Pin-Configurations"><span class="toc-text">2.2.1 GPIO Pin Configurations</span></a></li></ol></li><li class="toc-item toc-level-4"><a class="toc-link" href="#2-3-Storage"><span class="toc-text">2.3 Storage</span></a></li><li class="toc-item toc-level-4"><a class="toc-link" href="#2-4-Backlight"><span class="toc-text">2.4 Backlight</span></a></li></ol></li></ol></li></ol></li></ol>
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