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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>RGB — Fomu Bootloader documentation</title>
<link rel="stylesheet" href="_static/alabaster.css" type="text/css" />
<link rel="stylesheet" href="_static/pygments.css" type="text/css" />
<script type="text/javascript" id="documentation_options" data-url_root="./" src="_static/documentation_options.js"></script>
<script type="text/javascript" src="_static/jquery.js"></script>
<script type="text/javascript" src="_static/underscore.js"></script>
<script type="text/javascript" src="_static/doctools.js"></script>
<script type="text/javascript" src="_static/language_data.js"></script>
<script type="text/javascript" src="_static/default.js"></script>
<script type="text/javascript" src="_static/WaveDrom.js"></script>
<link rel="index" title="Index" href="genindex.html" />
<link rel="search" title="Search" href="search.html" />
<link rel="next" title="TIMER0" href="timer0.html" />
<link rel="prev" title="REBOOT" href="reboot.html" />
<link rel="stylesheet" href="_static/custom.css" type="text/css" />
<meta name="viewport" content="width=device-width, initial-scale=0.9, maximum-scale=0.9" />
</head><body>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body" role="main">
<div class="section" id="rgb">
<h1>RGB<a class="headerlink" href="#rgb" title="Permalink to this headline">¶</a></h1>
<div class="section" id="register-listing-for-rgb">
<h2>Register Listing for RGB<a class="headerlink" href="#register-listing-for-rgb" title="Permalink to this headline">¶</a></h2>
<table class="docutils align-default">
<colgroup>
<col style="width: 48%" />
<col style="width: 52%" />
</colgroup>
<thead>
<tr class="row-odd"><th class="head"><p>Register</p></th>
<th class="head"><p>Address</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p><a class="reference internal" href="#rgb-dat"><span class="std std-ref">RGB_DAT</span></a></p></td>
<td><p><a class="reference internal" href="#rgb-dat"><span class="std std-ref">0xe0006800</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#rgb-addr"><span class="std std-ref">RGB_ADDR</span></a></p></td>
<td><p><a class="reference internal" href="#rgb-addr"><span class="std std-ref">0xe0006804</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#rgb-ctrl"><span class="std std-ref">RGB_CTRL</span></a></p></td>
<td><p><a class="reference internal" href="#rgb-ctrl"><span class="std std-ref">0xe0006808</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#rgb-raw"><span class="std std-ref">RGB_RAW</span></a></p></td>
<td><p><a class="reference internal" href="#rgb-raw"><span class="std std-ref">0xe000680c</span></a></p></td>
</tr>
</tbody>
</table>
<div class="section" id="rgb-dat">
<h3>RGB_DAT<a class="headerlink" href="#rgb-dat" title="Permalink to this headline">¶</a></h3>
<p><cite>Address: 0xe0006800 + 0x0 = 0xe0006800</cite></p>
<blockquote>
<div><p>This is the value for the <code class="docutils literal notranslate"><span class="pre">SB_LEDDA_IP.DAT</span></code> register. It is directly written
into the <code class="docutils literal notranslate"><span class="pre">SB_LEDDA_IP</span></code> hardware block, so you should refer to
<a class="reference external" href="http://www.latticesemi.com/view_document?document_id=50668">http://www.latticesemi.com/view_document?document_id=50668</a>. The contents of this
register are written to the address specified in <code class="docutils literal notranslate"><span class="pre">ADDR</span></code> immediately upon
writing this register.</p>
<div style="overflow-x:auto">
<script type="WaveDrom">
{
"reg": [
{"name": "dat[7:0]", "bits": 8}
], "config": {"hspace": 400, "bits": 8, "lanes": 1 }, "options": {"hspace": 400, "bits": 8, "lanes": 1}
}
</script>
</div>
</div></blockquote>
</div>
<div class="section" id="rgb-addr">
<h3>RGB_ADDR<a class="headerlink" href="#rgb-addr" title="Permalink to this headline">¶</a></h3>
<p><cite>Address: 0xe0006800 + 0x4 = 0xe0006804</cite></p>
<blockquote>
<div><p>This register is directly connected to <code class="docutils literal notranslate"><span class="pre">SB_LEDDA_IP.ADDR</span></code>. This register
controls the address that is updated whenever <code class="docutils literal notranslate"><span class="pre">DAT</span></code> is written. Writing to
this register has no immediate effect – data isn’t written until the <code class="docutils literal notranslate"><span class="pre">DAT</span></code>
register is written.</p>
<div style="overflow-x:auto">
<script type="WaveDrom">
{
"reg": [
{"name": "addr[3:0]", "bits": 4},
{"bits": 4},
], "config": {"hspace": 400, "bits": 8, "lanes": 1 }, "options": {"hspace": 400, "bits": 8, "lanes": 1}
}
</script>
</div>
</div></blockquote>
</div>
<div class="section" id="rgb-ctrl">
<h3>RGB_CTRL<a class="headerlink" href="#rgb-ctrl" title="Permalink to this headline">¶</a></h3>
<p><cite>Address: 0xe0006800 + 0x8 = 0xe0006808</cite></p>
<blockquote>
<div><p>Control logic for the RGB LED and LEDDA hardware PWM LED block.</p>
<div style="overflow-x:auto">
<script type="WaveDrom">
{
"reg": [
{"name": "exe", "bits": 1},
{"name": "curren", "bits": 1},
{"name": "rgbleden", "bits": 1},
{"name": "rraw", "bits": 1},
{"name": "graw", "bits": 1},
{"name": "braw", "bits": 1},
{"bits": 2}
], "config": {"hspace": 400, "bits": 8, "lanes": 1 }, "options": {"hspace": 400, "bits": 8, "lanes": 1}
}
</script>
</div>
</div></blockquote>
<table class="docutils align-default">
<colgroup>
<col style="width: 7%" />
<col style="width: 10%" />
<col style="width: 83%" />
</colgroup>
<thead>
<tr class="row-odd"><th class="head"><p>Field</p></th>
<th class="head"><p>Name</p></th>
<th class="head"><p>Description</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>[0]</p></td>
<td><p>EXE</p></td>
<td><p>Connected to <code class="docutils literal notranslate"><span class="pre">SB_LEDDA_IP.LEDDEXE</span></code>. Set this to <code class="docutils literal notranslate"><span class="pre">1</span></code> to enable the fading
pattern.</p></td>
</tr>
<tr class="row-odd"><td><p>[1]</p></td>
<td><p>CURREN</p></td>
<td><p>Connected to <code class="docutils literal notranslate"><span class="pre">SB_RGBA_DRV.CURREN</span></code>. Set this to <code class="docutils literal notranslate"><span class="pre">1</span></code> to enable the current
source.</p></td>
</tr>
<tr class="row-even"><td><p>[2]</p></td>
<td><p>RGBLEDEN</p></td>
<td><p>Connected to <code class="docutils literal notranslate"><span class="pre">SB_RGBA_DRV.RGBLEDEN</span></code>. Set this to <code class="docutils literal notranslate"><span class="pre">1</span></code> to enable the RGB PWM
control logic.</p></td>
</tr>
<tr class="row-odd"><td><p>[3]</p></td>
<td><p>RRAW</p></td>
<td><p>Set this to <code class="docutils literal notranslate"><span class="pre">1</span></code> to enable raw control of the red LED via the <code class="docutils literal notranslate"><span class="pre">RAW.R</span></code>
register.</p></td>
</tr>
<tr class="row-even"><td><p>[4]</p></td>
<td><p>GRAW</p></td>
<td><p>Set this to <code class="docutils literal notranslate"><span class="pre">1</span></code> to enable raw control of the green LED via the <code class="docutils literal notranslate"><span class="pre">RAW.G</span></code>
register.</p></td>
</tr>
<tr class="row-odd"><td><p>[5]</p></td>
<td><p>BRAW</p></td>
<td><p>Set this to <code class="docutils literal notranslate"><span class="pre">1</span></code> to enable raw control of the blue LED via the <code class="docutils literal notranslate"><span class="pre">RAW.B</span></code>
register.</p></td>
</tr>
</tbody>
</table>
</div>
<div class="section" id="rgb-raw">
<h3>RGB_RAW<a class="headerlink" href="#rgb-raw" title="Permalink to this headline">¶</a></h3>
<p><cite>Address: 0xe0006800 + 0xc = 0xe000680c</cite></p>
<blockquote>
<div><p>Normally the hardware <code class="docutils literal notranslate"><span class="pre">SB_LEDDA_IP</span></code> block controls the brightness of the LED,
creating a gentle fading pattern. However, by setting the appropriate bit in
<code class="docutils literal notranslate"><span class="pre">CTRL</span></code>, it is possible to manually control the three individual LEDs.</p>
<div style="overflow-x:auto">
<script type="WaveDrom">
{
"reg": [
{"name": "r", "bits": 1},
{"name": "g", "bits": 1},
{"name": "b", "bits": 1},
{"bits": 5}
], "config": {"hspace": 400, "bits": 8, "lanes": 1 }, "options": {"hspace": 400, "bits": 8, "lanes": 1}
}
</script>
</div>
</div></blockquote>
<table class="docutils align-default">
<colgroup>
<col style="width: 10%" />
<col style="width: 8%" />
<col style="width: 82%" />
</colgroup>
<thead>
<tr class="row-odd"><th class="head"><p>Field</p></th>
<th class="head"><p>Name</p></th>
<th class="head"><p>Description</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>[0]</p></td>
<td><p>R</p></td>
<td><p>Raw value for the red LED when <code class="docutils literal notranslate"><span class="pre">CTRL.RRAW</span></code> is <code class="docutils literal notranslate"><span class="pre">1</span></code>.</p></td>
</tr>
<tr class="row-odd"><td><p>[1]</p></td>
<td><p>G</p></td>
<td><p>Raw value for the green LED when <code class="docutils literal notranslate"><span class="pre">CTRL.GRAW</span></code> is <code class="docutils literal notranslate"><span class="pre">1</span></code>.</p></td>
</tr>
<tr class="row-even"><td><p>[2]</p></td>
<td><p>B</p></td>
<td><p>Raw value for the blue LED when <code class="docutils literal notranslate"><span class="pre">CTRL.BRAW</span></code> is <code class="docutils literal notranslate"><span class="pre">1</span></code>.</p></td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<script type="text/javascript">
function init() {
WaveDrom.ProcessAll();
}
window.onload = init;
</script>
</div>
</div>
</div>
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<h1 class="logo"><a href="index.html">Fomu Bootloader</a></h1>
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<li class="toctree-l1"><a class="reference internal" href="interrupts.html">Interrupt Controller</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#register-listing-for-rgb">Register Listing for RGB</a><ul>
<li class="toctree-l3"><a class="reference internal" href="#rgb-dat">RGB_DAT</a></li>
<li class="toctree-l3"><a class="reference internal" href="#rgb-addr">RGB_ADDR</a></li>
<li class="toctree-l3"><a class="reference internal" href="#rgb-ctrl">RGB_CTRL</a></li>
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