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| <li class="toctree-l3 current"><a class="current reference internal" href="#">Atmega1284P</a><ul> |
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| |
| <section id="atmega1284p"> |
| <h1>Atmega1284P<a class="headerlink" href="#atmega1284p" title="Permalink to this heading"></a></h1> |
| <p>The Atmega1284P is a chip from Microchip (“inherited” from Atmel) with the |
| following features:</p> |
| <blockquote> |
| <div><ul class="simple"> |
| <li><p>16MHz 8bit AVR RISC Processor</p></li> |
| <li><p>128Kbyte Flash</p></li> |
| <li><p>16Kbyte RAM</p></li> |
| <li><p>4Kbyte EEPROM</p></li> |
| <li><p>2 High Speed Serial Ports</p></li> |
| <li><p>2 8-bit Timer/Counters</p></li> |
| <li><p>2 16-bit Timer/Counter</p></li> |
| <li><p>1 Master/Slave SPI</p></li> |
| <li><p>1 I2C controller (aka Two-Wire interface)</p></li> |
| <li><p>8Ch 10bit Analog Input port</p></li> |
| <li><p>up to 32 GPIOs</p></li> |
| <li><p>Watchdog timer</p></li> |
| <li><p>Real Time Clock</p></li> |
| <li><p>JTAG/OCD Interface</p></li> |
| </ul> |
| </div></blockquote> |
| <section id="clock-configuration"> |
| <h2>Clock Configuration<a class="headerlink" href="#clock-configuration" title="Permalink to this heading"></a></h2> |
| </section> |
| <section id="system-timer"> |
| <h2>System Timer<a class="headerlink" href="#system-timer" title="Permalink to this heading"></a></h2> |
| </section> |
| <section id="peripheral-support"> |
| <h2>Peripheral Support<a class="headerlink" href="#peripheral-support" title="Permalink to this heading"></a></h2> |
| <p>The following list indicates peripherals supported in NuttX:</p> |
| <table class="docutils align-default"> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>Peripheral</p></th> |
| <th class="head"><p>Support</p></th> |
| <th class="head"><p>Notes</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p>GPIO</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>PWM</p></td> |
| <td><p>No</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>ADC</p></td> |
| <td><p>No</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>RTC</p></td> |
| <td><p>No</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>WTD</p></td> |
| <td><p>No</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>I2C</p></td> |
| <td><p>No</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>SPI</p></td> |
| <td><p>No</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>TIMER</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>UART</p></td> |
| <td><p>Yes</p></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| <section id="uart"> |
| <h3>UART<a class="headerlink" href="#uart" title="Permalink to this heading"></a></h3> |
| <p>UART is implemented using interrupts. The chip doesn’t support DMA.</p> |
| </section> |
| <section id="timer"> |
| <h3>TIMER<a class="headerlink" href="#timer" title="Permalink to this heading"></a></h3> |
| <p>The TIMER peripheral is exposed as standard timer.</p> |
| </section> |
| </section> |
| <section id="supported-boards"> |
| <h2>Supported Boards<a class="headerlink" href="#supported-boards" title="Permalink to this heading"></a></h2> |
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