mirror of
https://github.com/taigrr/arduinolibs
synced 2025-01-18 04:33:12 -08:00
465 lines
60 KiB
HTML
465 lines
60 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
|
|
<meta name="generator" content="Doxygen 1.8.6"/>
|
|
<title>ArduinoLibs: DMD.cpp Source File</title>
|
|
<link href="tabs.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="jquery.js"></script>
|
|
<script type="text/javascript" src="dynsections.js"></script>
|
|
<link href="search/search.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="search/search.js"></script>
|
|
<script type="text/javascript">
|
|
$(document).ready(function() { searchBox.OnSelectItem(0); });
|
|
</script>
|
|
<link href="doxygen.css" rel="stylesheet" type="text/css" />
|
|
</head>
|
|
<body>
|
|
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
|
|
<div id="titlearea">
|
|
<table cellspacing="0" cellpadding="0">
|
|
<tbody>
|
|
<tr style="height: 56px;">
|
|
<td style="padding-left: 0.5em;">
|
|
<div id="projectname">ArduinoLibs
|
|
</div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<!-- end header part -->
|
|
<!-- Generated by Doxygen 1.8.6 -->
|
|
<script type="text/javascript">
|
|
var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
|
</script>
|
|
<div id="navrow1" class="tabs">
|
|
<ul class="tablist">
|
|
<li><a href="index.html"><span>Main Page</span></a></li>
|
|
<li><a href="pages.html"><span>Related Pages</span></a></li>
|
|
<li><a href="modules.html"><span>Modules</span></a></li>
|
|
<li><a href="annotated.html"><span>Classes</span></a></li>
|
|
<li class="current"><a href="files.html"><span>Files</span></a></li>
|
|
<li>
|
|
<div id="MSearchBox" class="MSearchBoxInactive">
|
|
<span class="left">
|
|
<img id="MSearchSelect" src="search/mag_sel.png"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
alt=""/>
|
|
<input type="text" id="MSearchField" value="Search" accesskey="S"
|
|
onfocus="searchBox.OnSearchFieldFocus(true)"
|
|
onblur="searchBox.OnSearchFieldFocus(false)"
|
|
onkeyup="searchBox.OnSearchFieldChange(event)"/>
|
|
</span><span class="right">
|
|
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
|
|
</span>
|
|
</div>
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
<div id="navrow2" class="tabs2">
|
|
<ul class="tablist">
|
|
<li><a href="files.html"><span>File List</span></a></li>
|
|
</ul>
|
|
</div>
|
|
<!-- window showing the filter options -->
|
|
<div id="MSearchSelectWindow"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
onkeydown="return searchBox.OnSearchSelectKey(event)">
|
|
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Friends</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(9)"><span class="SelectionMark"> </span>Groups</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(10)"><span class="SelectionMark"> </span>Pages</a></div>
|
|
|
|
<!-- iframe showing the search results (closed by default) -->
|
|
<div id="MSearchResultsWindow">
|
|
<iframe src="javascript:void(0)" frameborder="0"
|
|
name="MSearchResults" id="MSearchResults">
|
|
</iframe>
|
|
</div>
|
|
|
|
<div id="nav-path" class="navpath">
|
|
<ul>
|
|
<li class="navelem"><a class="el" href="dir_bc0718b08fb2015b8e59c47b2805f60c.html">libraries</a></li><li class="navelem"><a class="el" href="dir_6591a2127a29f6cea3994dcb5b0596d1.html">DMD</a></li> </ul>
|
|
</div>
|
|
</div><!-- top -->
|
|
<div class="header">
|
|
<div class="headertitle">
|
|
<div class="title">DMD.cpp</div> </div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
|
|
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2012 Southern Storm Software, Pty Ltd.</span></div>
|
|
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
|
|
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
|
|
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
|
|
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
|
|
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
|
|
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
|
|
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
|
|
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
|
|
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
|
|
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in all copies or substantial portions of the Software.</span></div>
|
|
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
|
|
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
|
|
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
|
|
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
|
|
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
|
|
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
|
|
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
|
|
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
|
|
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
|
|
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
|
|
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "DMD.h"</span></div>
|
|
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#if defined(ARDUINO) && ARDUINO >= 100</span></div>
|
|
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span><span class="preprocessor">#include <Arduino.h></span></div>
|
|
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#else</span></div>
|
|
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"></span><span class="preprocessor">#include <WProgram.h></span></div>
|
|
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#endif</span></div>
|
|
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"></span><span class="preprocessor">#include <pins_arduino.h></span></div>
|
|
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <avr/io.h></span></div>
|
|
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <avr/interrupt.h></span></div>
|
|
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <string.h></span></div>
|
|
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <stdlib.h></span></div>
|
|
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment">// Pins on the DMD connector board.</span></div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="preprocessor">#define DMD_PIN_PHASE_LSB 6 // A</span></div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="preprocessor"></span><span class="preprocessor">#define DMD_PIN_PHASE_MSB 7 // B</span></div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="preprocessor"></span><span class="preprocessor">#define DMD_PIN_LATCH 8 // SCLK</span></div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="preprocessor"></span><span class="preprocessor">#define DMD_PIN_OUTPUT_ENABLE 9 // nOE</span></div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="preprocessor"></span><span class="preprocessor">#define DMD_PIN_SPI_SS SS // SPI Slave Select</span></div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="preprocessor"></span><span class="preprocessor">#define DMD_PIN_SPI_MOSI MOSI // SPI Master Out, Slave In (R)</span></div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="preprocessor"></span><span class="preprocessor">#define DMD_PIN_SPI_MISO MISO // SPI Master In, Slave Out</span></div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="preprocessor"></span><span class="preprocessor">#define DMD_PIN_SPI_SCK SCK // SPI Serial Clock (CLK)</span></div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment">// Dimension information for the display.</span></div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="preprocessor">#define DMD_NUM_COLUMNS 32 // Number of columns in a panel.</span></div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="preprocessor"></span><span class="preprocessor">#define DMD_NUM_ROWS 16 // Number of rows in a panel.</span></div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment">// Refresh times.</span></div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="preprocessor">#define DMD_REFRESH_MS 5</span></div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="preprocessor"></span><span class="preprocessor">#define DMD_REFRESH_US 5000</span></div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"><a class="line" href="classDMD.html#affd37accffe951c8878434dfa1245809"> 237</a></span> <a class="code" href="classDMD.html#affd37accffe951c8878434dfa1245809">DMD::DMD</a>(<span class="keywordtype">int</span> widthPanels, <span class="keywordtype">int</span> heightPanels)</div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  : <a class="code" href="classBitmap.html">Bitmap</a>(widthPanels * DMD_NUM_COLUMNS, heightPanels * DMD_NUM_ROWS)</div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  , _doubleBuffer(false)</div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  , phase(0)</div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  , fb0(0)</div>
|
|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  , fb1(0)</div>
|
|
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  , displayfb(0)</div>
|
|
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  , lastRefresh(millis())</div>
|
|
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> {</div>
|
|
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="comment">// Both rendering and display are to fb0 initially.</span></div>
|
|
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  fb0 = displayfb = fb;</div>
|
|
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div>
|
|
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="comment">// Initialize SPI to MSB-first, mode 0, clock divider = 2.</span></div>
|
|
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  pinMode(DMD_PIN_SPI_SCK, OUTPUT);</div>
|
|
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  pinMode(DMD_PIN_SPI_MOSI, OUTPUT);</div>
|
|
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  pinMode(DMD_PIN_SPI_SS, OUTPUT);</div>
|
|
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  digitalWrite(DMD_PIN_SPI_SCK, LOW);</div>
|
|
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  digitalWrite(DMD_PIN_SPI_MOSI, LOW);</div>
|
|
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  digitalWrite(DMD_PIN_SPI_SS, HIGH);</div>
|
|
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  SPCR |= _BV(MSTR);</div>
|
|
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  SPCR |= _BV(SPE);</div>
|
|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  SPCR &= ~(_BV(DORD)); <span class="comment">// MSB-first</span></div>
|
|
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  SPCR &= ~0x0C; <span class="comment">// Mode 0</span></div>
|
|
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  SPCR &= ~0x03; <span class="comment">// Clock divider rate 2</span></div>
|
|
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  SPSR |= 0x01; <span class="comment">// MSB of clock divider rate</span></div>
|
|
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> </div>
|
|
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="comment">// Initialize the DMD-specific pins.</span></div>
|
|
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  pinMode(DMD_PIN_PHASE_LSB, OUTPUT);</div>
|
|
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  pinMode(DMD_PIN_PHASE_MSB, OUTPUT);</div>
|
|
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  pinMode(DMD_PIN_LATCH, OUTPUT);</div>
|
|
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  pinMode(DMD_PIN_OUTPUT_ENABLE, OUTPUT);</div>
|
|
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  digitalWrite(DMD_PIN_PHASE_LSB, LOW);</div>
|
|
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  digitalWrite(DMD_PIN_PHASE_MSB, LOW);</div>
|
|
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  digitalWrite(DMD_PIN_LATCH, LOW);</div>
|
|
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  digitalWrite(DMD_PIN_OUTPUT_ENABLE, LOW);</div>
|
|
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  digitalWrite(DMD_PIN_SPI_MOSI, HIGH);</div>
|
|
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> }</div>
|
|
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> </div>
|
|
<div class="line"><a name="l00278"></a><span class="lineno"><a class="line" href="classDMD.html#a7b37e05584d3e0308163700920df99b2"> 278</a></span> <a class="code" href="classDMD.html#a7b37e05584d3e0308163700920df99b2">DMD::~DMD</a>()</div>
|
|
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> {</div>
|
|
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">if</span> (fb0)</div>
|
|
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  free(fb0);</div>
|
|
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordflow">if</span> (fb1)</div>
|
|
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  free(fb1);</div>
|
|
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  fb = 0; <span class="comment">// Don't free the buffer again in the base class.</span></div>
|
|
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> }</div>
|
|
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> </div>
|
|
<div class="line"><a name="l00314"></a><span class="lineno"><a class="line" href="classDMD.html#a6fbdcf8832f91d02500cb7a9b84d2723"> 314</a></span> <span class="keywordtype">void</span> <a class="code" href="classDMD.html#a6fbdcf8832f91d02500cb7a9b84d2723">DMD::setDoubleBuffer</a>(<span class="keywordtype">bool</span> doubleBuffer)</div>
|
|
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> {</div>
|
|
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">if</span> (doubleBuffer != _doubleBuffer) {</div>
|
|
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  _doubleBuffer = <a class="code" href="classDMD.html#aab1f3ba29c053d630ae12865d22166ec">doubleBuffer</a>;</div>
|
|
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">if</span> (doubleBuffer) {</div>
|
|
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="comment">// Allocate a new back buffer.</span></div>
|
|
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size = _stride * _height;</div>
|
|
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  fb1 = (uint8_t *)malloc(size);</div>
|
|
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div>
|
|
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">// Clear the new back buffer and then switch to it, leaving</span></div>
|
|
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="comment">// the current contents of fb0 on the screen.</span></div>
|
|
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keywordflow">if</span> (fb1) {</div>
|
|
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  memset(fb1, 0xFF, size);</div>
|
|
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  cli();</div>
|
|
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  fb = fb1;</div>
|
|
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  displayfb = fb0;</div>
|
|
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  sei();</div>
|
|
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// Failed to allocate the memory, so revert to single-buffered.</span></div>
|
|
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  _doubleBuffer = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  }</div>
|
|
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (fb1) {</div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="comment">// Disabling double-buffering, so forcibly switch to fb0.</span></div>
|
|
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  cli();</div>
|
|
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  fb = fb0;</div>
|
|
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  displayfb = fb0;</div>
|
|
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  sei();</div>
|
|
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div>
|
|
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="comment">// Free the unnecessary buffer.</span></div>
|
|
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  free(fb1);</div>
|
|
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  fb1 = 0;</div>
|
|
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  }</div>
|
|
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  }</div>
|
|
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> }</div>
|
|
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span> </div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"><a class="line" href="classDMD.html#a80269ccd44b3ef9ee15f0a1009b7a60a"> 363</a></span> <span class="keywordtype">void</span> <a class="code" href="classDMD.html#a80269ccd44b3ef9ee15f0a1009b7a60a">DMD::swapBuffers</a>()</div>
|
|
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> {</div>
|
|
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">if</span> (_doubleBuffer) {</div>
|
|
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="comment">// Turn off interrupts while swapping buffers so that we don't</span></div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="comment">// accidentally try to refresh() in the middle of this code.</span></div>
|
|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  cli();</div>
|
|
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordflow">if</span> (fb == fb0) {</div>
|
|
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  fb = fb1;</div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  displayfb = fb0;</div>
|
|
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  fb = fb0;</div>
|
|
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  displayfb = fb1;</div>
|
|
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  }</div>
|
|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  sei();</div>
|
|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  }</div>
|
|
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> }</div>
|
|
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div>
|
|
<div class="line"><a name="l00396"></a><span class="lineno"><a class="line" href="classDMD.html#a0b1771cf790b2b62eea55e56b02e3736"> 396</a></span> <span class="keywordtype">void</span> <a class="code" href="classDMD.html#a0b1771cf790b2b62eea55e56b02e3736">DMD::swapBuffersAndCopy</a>()</div>
|
|
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> {</div>
|
|
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <a class="code" href="classDMD.html#a80269ccd44b3ef9ee15f0a1009b7a60a">swapBuffers</a>();</div>
|
|
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keywordflow">if</span> (_doubleBuffer)</div>
|
|
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  memcpy(fb, displayfb, _stride * _height);</div>
|
|
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span> }</div>
|
|
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span> </div>
|
|
<div class="line"><a name="l00420"></a><span class="lineno"><a class="line" href="classDMD.html#a2c74a0845ef6080056b972d490648114"> 420</a></span> <span class="keywordtype">void</span> <a class="code" href="classDMD.html#a2c74a0845ef6080056b972d490648114">DMD::loop</a>()</div>
|
|
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span> {</div>
|
|
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> currentTime = millis();</div>
|
|
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keywordflow">if</span> ((currentTime - lastRefresh) >= DMD_REFRESH_MS) {</div>
|
|
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  lastRefresh = currentTime;</div>
|
|
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <a class="code" href="classDMD.html#a9e4bf2a9d247312d35c1401ff61261c8">refresh</a>();</div>
|
|
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  }</div>
|
|
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span> }</div>
|
|
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> </div>
|
|
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="comment">// Send a single byte via SPI.</span></div>
|
|
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> spiSend(byte value)</div>
|
|
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span> {</div>
|
|
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  SPDR = value;</div>
|
|
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keywordflow">while</span> (!(SPSR & _BV(SPIF)))</div>
|
|
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  ; <span class="comment">// Wait for the transfer to complete.</span></div>
|
|
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span> }</div>
|
|
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> </div>
|
|
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span> <span class="comment">// Flip the bits in a byte. Table generated by genflip.c</span></div>
|
|
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span> <span class="keyword">static</span> <span class="keyword">const</span> uint8_t flipBits[256] PROGMEM = {</div>
|
|
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0,</div>
|
|
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  0x30, 0xB0, 0x70, 0xF0, 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8,</div>
|
|
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8, 0x04, 0x84, 0x44, 0xC4,</div>
|
|
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  0x24, 0xA4, 0x64, 0xE4, 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4,</div>
|
|
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, 0x1C, 0x9C, 0x5C, 0xDC,</div>
|
|
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  0x3C, 0xBC, 0x7C, 0xFC, 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2,</div>
|
|
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2, 0x0A, 0x8A, 0x4A, 0xCA,</div>
|
|
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  0x2A, 0xAA, 0x6A, 0xEA, 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA,</div>
|
|
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, 0x16, 0x96, 0x56, 0xD6,</div>
|
|
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  0x36, 0xB6, 0x76, 0xF6, 0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE,</div>
|
|
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE, 0x01, 0x81, 0x41, 0xC1,</div>
|
|
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  0x21, 0xA1, 0x61, 0xE1, 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1,</div>
|
|
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, 0x19, 0x99, 0x59, 0xD9,</div>
|
|
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  0x39, 0xB9, 0x79, 0xF9, 0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5,</div>
|
|
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5, 0x0D, 0x8D, 0x4D, 0xCD,</div>
|
|
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  0x2D, 0xAD, 0x6D, 0xED, 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD,</div>
|
|
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, 0x13, 0x93, 0x53, 0xD3,</div>
|
|
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  0x33, 0xB3, 0x73, 0xF3, 0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB,</div>
|
|
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB, 0x07, 0x87, 0x47, 0xC7,</div>
|
|
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  0x27, 0xA7, 0x67, 0xE7, 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7,</div>
|
|
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, 0x1F, 0x9F, 0x5F, 0xDF,</div>
|
|
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  0x3F, 0xBF, 0x7F, 0xFF</div>
|
|
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> };</div>
|
|
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span> </div>
|
|
<div class="line"><a name="l00478"></a><span class="lineno"><a class="line" href="classDMD.html#a9e4bf2a9d247312d35c1401ff61261c8"> 478</a></span> <span class="keywordtype">void</span> <a class="code" href="classDMD.html#a9e4bf2a9d247312d35c1401ff61261c8">DMD::refresh</a>()</div>
|
|
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> {</div>
|
|
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="comment">// Bail out if there is a conflict on the SPI bus.</span></div>
|
|
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="keywordflow">if</span> (!digitalRead(DMD_PIN_SPI_SS))</div>
|
|
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span> </div>
|
|
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="comment">// Transfer the data for the next group of interleaved rows.</span></div>
|
|
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <span class="keywordtype">int</span> stride4 = _stride * 4;</div>
|
|
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  uint8_t *data0;</div>
|
|
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  uint8_t *data1;</div>
|
|
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  uint8_t *data2;</div>
|
|
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  uint8_t *data3;</div>
|
|
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keywordtype">bool</span> flipRow = ((_height & 0x10) == 0);</div>
|
|
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> y = 0; y < _height; y += 16) {</div>
|
|
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="keywordflow">if</span> (!flipRow) {</div>
|
|
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  <span class="comment">// The panels in this row are the right way up.</span></div>
|
|
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  data0 = displayfb + _stride * (y + phase);</div>
|
|
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  data1 = data0 + stride4;</div>
|
|
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  data2 = data1 + stride4;</div>
|
|
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  data3 = data2 + stride4;</div>
|
|
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x = _stride; x > 0; --x) {</div>
|
|
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  spiSend(*data3++);</div>
|
|
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  spiSend(*data2++);</div>
|
|
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  spiSend(*data1++);</div>
|
|
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  spiSend(*data0++);</div>
|
|
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  }</div>
|
|
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  flipRow = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <span class="comment">// The panels in this row are upside-down and reversed.</span></div>
|
|
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  data0 = displayfb + _stride * (y + 16 - phase) - 1;</div>
|
|
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  data1 = data0 - stride4;</div>
|
|
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  data2 = data1 - stride4;</div>
|
|
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  data3 = data2 - stride4;</div>
|
|
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x = _stride; x > 0; --x) {</div>
|
|
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  spiSend(pgm_read_byte(&(flipBits[*data3--])));</div>
|
|
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  spiSend(pgm_read_byte(&(flipBits[*data2--])));</div>
|
|
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  spiSend(pgm_read_byte(&(flipBits[*data1--])));</div>
|
|
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  spiSend(pgm_read_byte(&(flipBits[*data0--])));</div>
|
|
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  }</div>
|
|
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  flipRow = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  }</div>
|
|
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  }</div>
|
|
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span> </div>
|
|
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="comment">// Latch the data from the shift registers onto the actual display.</span></div>
|
|
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  digitalWrite(DMD_PIN_OUTPUT_ENABLE, LOW);</div>
|
|
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  digitalWrite(DMD_PIN_LATCH, HIGH);</div>
|
|
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  digitalWrite(DMD_PIN_LATCH, LOW);</div>
|
|
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="keywordflow">if</span> (phase & 0x02)</div>
|
|
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  digitalWrite(DMD_PIN_PHASE_MSB, HIGH);</div>
|
|
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="keywordflow">else</span></div>
|
|
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  digitalWrite(DMD_PIN_PHASE_MSB, LOW);</div>
|
|
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="keywordflow">if</span> (phase & 0x01)</div>
|
|
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  digitalWrite(DMD_PIN_PHASE_LSB, HIGH);</div>
|
|
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="keywordflow">else</span></div>
|
|
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  digitalWrite(DMD_PIN_PHASE_LSB, LOW);</div>
|
|
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  digitalWrite(DMD_PIN_OUTPUT_ENABLE, HIGH);</div>
|
|
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  phase = (phase + 1) & 0x03;</div>
|
|
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span> }</div>
|
|
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span> </div>
|
|
<div class="line"><a name="l00563"></a><span class="lineno"><a class="line" href="classDMD.html#a4c3b04b384f3d656a9b59690836775e2"> 563</a></span> <span class="keywordtype">void</span> <a class="code" href="classDMD.html#a4c3b04b384f3d656a9b59690836775e2">DMD::enableTimer1</a>()</div>
|
|
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span> {</div>
|
|
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <span class="comment">// Number of CPU cycles in the display's refresh period.</span></div>
|
|
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> numCycles = (F_CPU / 2000000) * DMD_REFRESH_US;</div>
|
|
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span> </div>
|
|
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="comment">// Determine the prescaler to be used.</span></div>
|
|
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span> <span class="preprocessor"> #define TIMER1_RESOLUTION 65536UL</span></div>
|
|
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span> <span class="preprocessor"></span> uint8_t prescaler;</div>
|
|
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="keywordflow">if</span> (numCycles < TIMER1_RESOLUTION) {</div>
|
|
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="comment">// No prescaling required.</span></div>
|
|
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  prescaler = _BV(CS10);</div>
|
|
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (numCycles < TIMER1_RESOLUTION * 8) {</div>
|
|
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <span class="comment">// Prescaler = 8.</span></div>
|
|
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  prescaler = _BV(CS11);</div>
|
|
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  numCycles >>= 3;</div>
|
|
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (numCycles < TIMER1_RESOLUTION * 64) {</div>
|
|
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="comment">// Prescaler = 64.</span></div>
|
|
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  prescaler = _BV(CS11) | _BV(CS10);</div>
|
|
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  numCycles >>= 6;</div>
|
|
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (numCycles < TIMER1_RESOLUTION * 256) {</div>
|
|
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  <span class="comment">// Prescaler = 256.</span></div>
|
|
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  prescaler = _BV(CS12);</div>
|
|
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  numCycles >>= 8;</div>
|
|
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (numCycles < TIMER1_RESOLUTION * 1024) {</div>
|
|
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  <span class="comment">// Prescaler = 1024.</span></div>
|
|
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  prescaler = _BV(CS12) | _BV(CS10);</div>
|
|
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  numCycles >>= 10;</div>
|
|
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <span class="comment">// Too long, so set the maximum timeout.</span></div>
|
|
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  prescaler = _BV(CS12) | _BV(CS10);</div>
|
|
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  numCycles = TIMER1_RESOLUTION - 1;</div>
|
|
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  }</div>
|
|
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span> </div>
|
|
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <span class="comment">// Configure Timer1 for the period we want.</span></div>
|
|
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  TCCR1A = 0;</div>
|
|
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  TCCR1B = _BV(WGM13);</div>
|
|
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  uint8_t saveSREG = SREG;</div>
|
|
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  cli();</div>
|
|
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  ICR1 = numCycles;</div>
|
|
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  SREG = saveSREG; <span class="comment">// Implicit sei() if interrupts were on previously.</span></div>
|
|
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  TCCR1B = (TCCR1B & ~(_BV(CS12) | _BV(CS11) | _BV(CS10))) | prescaler;</div>
|
|
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span> </div>
|
|
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <span class="comment">// Turn on the Timer1 overflow interrupt.</span></div>
|
|
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  TIMSK1 |= _BV(TOIE1);</div>
|
|
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span> }</div>
|
|
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span> </div>
|
|
<div class="line"><a name="l00614"></a><span class="lineno"><a class="line" href="classDMD.html#a39af27e216f654ecc7e60b0614cb6b33"> 614</a></span> <span class="keywordtype">void</span> <a class="code" href="classDMD.html#a39af27e216f654ecc7e60b0614cb6b33">DMD::disableTimer1</a>()</div>
|
|
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span> {</div>
|
|
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="comment">// Turn off the Timer1 overflow interrupt.</span></div>
|
|
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  TIMSK1 &= ~_BV(TOIE1);</div>
|
|
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span> }</div>
|
|
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span> </div>
|
|
<div class="line"><a name="l00646"></a><span class="lineno"><a class="line" href="classDMD.html#a5469775db7fafebca2cdbc6a6372fb97"> 646</a></span> <span class="keywordtype">void</span> <a class="code" href="classDMD.html#a5469775db7fafebca2cdbc6a6372fb97">DMD::enableTimer2</a>()</div>
|
|
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span> {</div>
|
|
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  <span class="comment">// Configure Timer2 for the period we want. With the prescaler set</span></div>
|
|
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  <span class="comment">// to 128, then 256 increments of Timer2 gives roughly 4 ms between</span></div>
|
|
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="comment">// overflows on a system with a 16 MHz clock. We adjust the prescaler</span></div>
|
|
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  <span class="comment">// accordingly for other clock frequencies.</span></div>
|
|
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  TCCR2A = 0;</div>
|
|
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="keywordflow">if</span> (F_CPU >= 32000000)</div>
|
|
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  TCCR2B = _BV(CS22) | _BV(CS21); <span class="comment">// Prescaler = 256</span></div>
|
|
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (F_CPU >= 16000000)</div>
|
|
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  TCCR2B = _BV(CS22) | _BV(CS20); <span class="comment">// Prescaler = 128</span></div>
|
|
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (F_CPU >= 8000000)</div>
|
|
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  TCCR2B = _BV(CS22); <span class="comment">// Prescaler = 64</span></div>
|
|
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  <span class="keywordflow">else</span></div>
|
|
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  TCCR2B = _BV(CS21) | _BV(CS20); <span class="comment">// Prescaler = 32</span></div>
|
|
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span> </div>
|
|
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  <span class="comment">// Reset Timer2 to kick off the process.</span></div>
|
|
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  TCNT2 = 0;</div>
|
|
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span> </div>
|
|
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  <span class="comment">// Turn on the Timer2 overflow interrupt (also turn off OCIE2A and OCIE2B).</span></div>
|
|
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  TIMSK2 = _BV(TOIE2);</div>
|
|
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span> }</div>
|
|
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span> </div>
|
|
<div class="line"><a name="l00674"></a><span class="lineno"><a class="line" href="classDMD.html#a52fe885bfb380b74df54c96221811cff"> 674</a></span> <span class="keywordtype">void</span> <a class="code" href="classDMD.html#a52fe885bfb380b74df54c96221811cff">DMD::disableTimer2</a>()</div>
|
|
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span> {</div>
|
|
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  <span class="comment">// Turn off the Timer2 overflow interrupt.</span></div>
|
|
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  TIMSK2 &= ~_BV(TOIE2);</div>
|
|
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span> }</div>
|
|
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span> </div>
|
|
<div class="line"><a name="l00690"></a><span class="lineno"><a class="line" href="classDMD.html#a557412f734fc4596e1102bf71e110ea0"> 690</a></span> <a class="code" href="classBitmap.html#a88d386944a7017aa776a177b10d8b2ba">DMD::Color</a> <a class="code" href="classDMD.html#a557412f734fc4596e1102bf71e110ea0">DMD::fromRGB</a>(uint8_t r, uint8_t g, uint8_t b)</div>
|
|
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span> {</div>
|
|
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  <span class="keywordflow">if</span> (r || g || b)</div>
|
|
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="keywordflow">return</span> <a class="code" href="classBitmap.html#a39b6754cfe50a457bbfdb1980fd87eb7">White</a>;</div>
|
|
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  <span class="keywordflow">else</span></div>
|
|
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <span class="keywordflow">return</span> <a class="code" href="classBitmap.html#a2c7faeeb89d3624b5bbca58871785adc">Black</a>;</div>
|
|
<div class="line"><a name="l00696"></a><span class="lineno"> 696</span> }</div>
|
|
<div class="ttc" id="classDMD_html_a39af27e216f654ecc7e60b0614cb6b33"><div class="ttname"><a href="classDMD.html#a39af27e216f654ecc7e60b0614cb6b33">DMD::disableTimer1</a></div><div class="ttdeci">void disableTimer1()</div><div class="ttdoc">Disables Timer1 overflow interrupts. </div><div class="ttdef"><b>Definition:</b> <a href="DMD_8cpp_source.html#l00614">DMD.cpp:614</a></div></div>
|
|
<div class="ttc" id="classDMD_html_a2c74a0845ef6080056b972d490648114"><div class="ttname"><a href="classDMD.html#a2c74a0845ef6080056b972d490648114">DMD::loop</a></div><div class="ttdeci">void loop()</div><div class="ttdoc">Performs regular display refresh activities from the application's main loop. </div><div class="ttdef"><b>Definition:</b> <a href="DMD_8cpp_source.html#l00420">DMD.cpp:420</a></div></div>
|
|
<div class="ttc" id="classDMD_html_a52fe885bfb380b74df54c96221811cff"><div class="ttname"><a href="classDMD.html#a52fe885bfb380b74df54c96221811cff">DMD::disableTimer2</a></div><div class="ttdeci">void disableTimer2()</div><div class="ttdoc">Disables Timer2 overflow interrupts. </div><div class="ttdef"><b>Definition:</b> <a href="DMD_8cpp_source.html#l00674">DMD.cpp:674</a></div></div>
|
|
<div class="ttc" id="classBitmap_html"><div class="ttname"><a href="classBitmap.html">Bitmap</a></div><div class="ttdoc">Represents a monochrome bitmap within main memory. </div><div class="ttdef"><b>Definition:</b> <a href="Bitmap_8h_source.html#l00032">Bitmap.h:32</a></div></div>
|
|
<div class="ttc" id="classDMD_html_aab1f3ba29c053d630ae12865d22166ec"><div class="ttname"><a href="classDMD.html#aab1f3ba29c053d630ae12865d22166ec">DMD::doubleBuffer</a></div><div class="ttdeci">bool doubleBuffer() const </div><div class="ttdoc">Returns true if the display is double-buffered; false if single-buffered. The default is false...</div><div class="ttdef"><b>Definition:</b> <a href="DMD_8h_source.html#l00034">DMD.h:34</a></div></div>
|
|
<div class="ttc" id="classDMD_html_a80269ccd44b3ef9ee15f0a1009b7a60a"><div class="ttname"><a href="classDMD.html#a80269ccd44b3ef9ee15f0a1009b7a60a">DMD::swapBuffers</a></div><div class="ttdeci">void swapBuffers()</div><div class="ttdoc">Swaps the buffers that are used for rendering to the display. </div><div class="ttdef"><b>Definition:</b> <a href="DMD_8cpp_source.html#l00363">DMD.cpp:363</a></div></div>
|
|
<div class="ttc" id="classDMD_html_a4c3b04b384f3d656a9b59690836775e2"><div class="ttname"><a href="classDMD.html#a4c3b04b384f3d656a9b59690836775e2">DMD::enableTimer1</a></div><div class="ttdeci">void enableTimer1()</div><div class="ttdoc">Enables Timer1 overflow interrupts for updating this display. </div><div class="ttdef"><b>Definition:</b> <a href="DMD_8cpp_source.html#l00563">DMD.cpp:563</a></div></div>
|
|
<div class="ttc" id="classDMD_html_a7b37e05584d3e0308163700920df99b2"><div class="ttname"><a href="classDMD.html#a7b37e05584d3e0308163700920df99b2">DMD::~DMD</a></div><div class="ttdeci">~DMD()</div><div class="ttdoc">Destroys this dot matrix display handler. </div><div class="ttdef"><b>Definition:</b> <a href="DMD_8cpp_source.html#l00278">DMD.cpp:278</a></div></div>
|
|
<div class="ttc" id="classBitmap_html_a88d386944a7017aa776a177b10d8b2ba"><div class="ttname"><a href="classBitmap.html#a88d386944a7017aa776a177b10d8b2ba">Bitmap::Color</a></div><div class="ttdeci">uint8_t Color</div><div class="ttdoc">Type that represents the color of a pixel in a bitmap. </div><div class="ttdef"><b>Definition:</b> <a href="Bitmap_8h_source.html#l00040">Bitmap.h:40</a></div></div>
|
|
<div class="ttc" id="classDMD_html_a0b1771cf790b2b62eea55e56b02e3736"><div class="ttname"><a href="classDMD.html#a0b1771cf790b2b62eea55e56b02e3736">DMD::swapBuffersAndCopy</a></div><div class="ttdeci">void swapBuffersAndCopy()</div><div class="ttdoc">Swaps the buffers that are used for rendering to the display and copies the former back buffer conten...</div><div class="ttdef"><b>Definition:</b> <a href="DMD_8cpp_source.html#l00396">DMD.cpp:396</a></div></div>
|
|
<div class="ttc" id="classDMD_html_affd37accffe951c8878434dfa1245809"><div class="ttname"><a href="classDMD.html#affd37accffe951c8878434dfa1245809">DMD::DMD</a></div><div class="ttdeci">DMD(int widthPanels=1, int heightPanels=1)</div><div class="ttdoc">Constructs a new dot matrix display handler for a display that is widthPanels x heightPanels in size...</div><div class="ttdef"><b>Definition:</b> <a href="DMD_8cpp_source.html#l00237">DMD.cpp:237</a></div></div>
|
|
<div class="ttc" id="classDMD_html_a5469775db7fafebca2cdbc6a6372fb97"><div class="ttname"><a href="classDMD.html#a5469775db7fafebca2cdbc6a6372fb97">DMD::enableTimer2</a></div><div class="ttdeci">void enableTimer2()</div><div class="ttdoc">Enables Timer2 overflow interrupts for updating this display. </div><div class="ttdef"><b>Definition:</b> <a href="DMD_8cpp_source.html#l00646">DMD.cpp:646</a></div></div>
|
|
<div class="ttc" id="classDMD_html_a557412f734fc4596e1102bf71e110ea0"><div class="ttname"><a href="classDMD.html#a557412f734fc4596e1102bf71e110ea0">DMD::fromRGB</a></div><div class="ttdeci">static Color fromRGB(uint8_t r, uint8_t g, uint8_t b)</div><div class="ttdoc">Converts an RGB value into a pixel color value. </div><div class="ttdef"><b>Definition:</b> <a href="DMD_8cpp_source.html#l00690">DMD.cpp:690</a></div></div>
|
|
<div class="ttc" id="classBitmap_html_a39b6754cfe50a457bbfdb1980fd87eb7"><div class="ttname"><a href="classBitmap.html#a39b6754cfe50a457bbfdb1980fd87eb7">Bitmap::White</a></div><div class="ttdeci">static const Color White</div><div class="ttdoc">Color value corresponding to "white". If the bitmap is displayed on a LED array, then it may have a d...</div><div class="ttdef"><b>Definition:</b> <a href="Bitmap_8h_source.html#l00045">Bitmap.h:45</a></div></div>
|
|
<div class="ttc" id="classDMD_html_a9e4bf2a9d247312d35c1401ff61261c8"><div class="ttname"><a href="classDMD.html#a9e4bf2a9d247312d35c1401ff61261c8">DMD::refresh</a></div><div class="ttdeci">void refresh()</div><div class="ttdoc">Refresh the display. </div><div class="ttdef"><b>Definition:</b> <a href="DMD_8cpp_source.html#l00478">DMD.cpp:478</a></div></div>
|
|
<div class="ttc" id="classDMD_html_a6fbdcf8832f91d02500cb7a9b84d2723"><div class="ttname"><a href="classDMD.html#a6fbdcf8832f91d02500cb7a9b84d2723">DMD::setDoubleBuffer</a></div><div class="ttdeci">void setDoubleBuffer(bool doubleBuffer)</div><div class="ttdoc">Enables or disables double-buffering according to doubleBuffer. </div><div class="ttdef"><b>Definition:</b> <a href="DMD_8cpp_source.html#l00314">DMD.cpp:314</a></div></div>
|
|
<div class="ttc" id="classBitmap_html_a2c7faeeb89d3624b5bbca58871785adc"><div class="ttname"><a href="classBitmap.html#a2c7faeeb89d3624b5bbca58871785adc">Bitmap::Black</a></div><div class="ttdeci">static const Color Black</div><div class="ttdoc">Color value corresponding to "black". </div><div class="ttdef"><b>Definition:</b> <a href="Bitmap_8h_source.html#l00044">Bitmap.h:44</a></div></div>
|
|
</div><!-- fragment --></div><!-- contents -->
|
|
<!-- start footer part -->
|
|
<hr class="footer"/><address class="footer"><small>
|
|
Generated on Fri Nov 3 2017 10:48:52 for ArduinoLibs by  <a href="http://www.doxygen.org/index.html">
|
|
<img class="footer" src="doxygen.png" alt="doxygen"/>
|
|
</a> 1.8.6
|
|
</small></address>
|
|
</body>
|
|
</html>
|