271 lines
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271 lines
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<ol class="chapter"><li class="affix"><a href="../index.html">Introduction</a></li><li class="affix"><a href="../background/index.html">Background</a></li><li class="affix"><a href="../requirements/index.html">Requirements</a></li><li><a href="../hardware/index.html" class="active"><strong aria-hidden="true">1.</strong> Meet your hardware</a></li><li><a href="../setup/index.html"><strong aria-hidden="true">2.</strong> Development environment setup</a></li><li><ol class="section"><li><a href="../setup/LINUX.html"><strong aria-hidden="true">2.1.</strong> Linux</a></li><li><a href="../setup/WINDOWS.html"><strong aria-hidden="true">2.2.</strong> Windows</a></li><li><a href="../setup/MACOS.html"><strong aria-hidden="true">2.3.</strong> macOS</a></li><li><a href="../setup/VERIFY.html"><strong aria-hidden="true">2.4.</strong> Verify the installation</a></li></ol></li><li><a href="../getting-started/00.00.README.html"><strong aria-hidden="true">3.</strong> Getting started</a></li><li><ol class="section"><li><a href="../getting-started/01.00.BUILD.html"><strong aria-hidden="true">3.1.</strong> Building</a></li><li><a href="../getting-started/02.00.FLASH.html"><strong aria-hidden="true">3.2.</strong> Flashing</a></li><li><a href="../getting-started/03.00.DEBUG.html"><strong aria-hidden="true">3.3.</strong> Debugging</a></li><li><a href="../getting-started/04.00.SOLUTION.html"><strong aria-hidden="true">3.4.</strong> Solution</a></li></ol></li><li><a href="../hello-world/00.00.README.html"><strong aria-hidden="true">4.</strong> Hello world</a></li><li><ol class="section"><li><a href="../hello-world/01.00.SEMIHOSTING.html"><strong aria-hidden="true">4.1.</strong> Semihosting</a></li><li><a href="../hello-world/02.00.UART.html"><strong aria-hidden="true">4.2.</strong> Serial communication</a></li><li><ol class="section"><li><a href="../hello-world/02.01.NIX.html"><strong aria-hidden="true">4.2.1.</strong> *nix</a></li><li><a href="../hello-world/02.02.WINDOWS.html"><strong aria-hidden="true">4.2.2.</strong> Windows</a></li></ol></li><li><a href="../hello-world/03.00.LED.html"><strong aria-hidden="true">4.3.</strong> GPIO and LEDs</a></li><li><ol class="section"><li><a href="../hello-world/03.01.SOLUTION.html"><strong aria-hidden="true">4.3.1.</strong> Solution</a></li></ol></li></ol></li><li><a href="../choice/00.00.README.html"><strong aria-hidden="true">5.</strong> Choose Your Own Adventure</a></li><li><a href="../microbit/00.00.README.html"><strong aria-hidden="true">6.</strong> micro:bit HAL basics</a></li><li><ol class="section"><li><a href="../microbit/01.00.BUTTONS.html"><strong aria-hidden="true">6.1.</strong> Buttons</a></li><li><a href="../microbit/02.00.DELAY.html"><strong aria-hidden="true">6.2.</strong> Delays</a></li><li><a href="../microbit/03.00.DISPLAY.html"><strong aria-hidden="true">6.3.</strong> Display</a></li></ol></li><li><a href="../serial/00.00.README.html"><strong aria-hidden="true">7.</strong> Serial UART - Blocking</a></li><li><ol class="section"><li><a href="../serial/01.00.ECHO.html"><strong aria-hidden="true">7.1.</strong> Echo Server</a></li><li><ol class="section"><li><a href="../serial/01.01.THEORY.html"><strong aria-hidden="true">7.1.1.</strong> Theory</a></li><li><a href="../serial/01.02.ECHO.html"><strong aria-hidden="true">7.1.2.</strong> Solution</a></li></ol></li><li><a href="../serial/02.00.html"><strong aria-hidden="true">7.2.</strong> Exercises</a></li><li><ol class="section"><li><a href="../serial/02.01.html"><strong aria-hidden="true">7.2.1.</strong> Reverse echo</a></li><li><ol class="section"><li><a href="../serial/02.01.SOLUTION.html"><strong aria-hidden="true">7.2.1.1.</strong> Solution</a></li></ol></li><li><a href="../serial/02.02.html"><strong aria-hidden="true">7.2.2.</strong> Countdown</a></li><li><ol class="section"><li><a href="../serial/02.02.SOLUTION.html"><strong aria-hidden="true">7.2.2.1.</strong> Solution</a></li></ol></li><li><a href="../serial/02.04.html"><strong aria-hidden="true">7.2.3.</strong> Quiz</a></li><li><ol class="section"><li><a href="../serial/02.04.SOLUTION.html"><strong aria-hidden="true">7.2.3.1.</strong> Solution</a></li></ol></li></ol></li></ol></li><li><a href="../display/00.00.README.html"><strong aria-hidden="true">8.</strong> LED display</a></li><li><ol class="section"><li><a href="../display/01.00.THEORY.html"><strong aria-hidden="true">8.1.</strong> Theory</a></li><li><a href="../display/02.00.PROBLEM.html"><strong aria-hidden="true">8.2.</strong> Problem</a></li><li><ol class="section"><li><a href="../display/02.01.LAYOUT.html"><strong aria-hidden="true">8.2.1.</strong> Layout</a></li><li><a href="../display/02.02.DELAY.html"><strong aria-hidden="true">8.2.2.</strong> Delays</a></li><li><a href="../display/02.03.MULT.html"><strong aria-hidden="true">8.2.3.</strong> Multiplexing</a></li></ol></li><li><a href="../display/03.00.SOLUTION.html"><strong aria-hidden="true">8.3.</strong> Solution</a></li><li><ol class="section"><li><a href="../display/03.01.LAYOUT.html"><strong aria-hidden="true">8.3.1.</strong> Layout</a></li><li><a href="../display/03.02.MULT.html"><strong aria-hidden="true">8.3.2.</strong> Multiplexing</a></li><li><a href="../display/03.03.FULL.html"><strong aria-hidden="true">8.3.3.</strong> Full Solution</a></li></ol></li></ol></li><li><a href="../sensors/00.00.README.html"><strong aria-hidden="true">9.</strong> WIP - Sensors and I²C</a></li><li><a href="../nb/00.00.README.html"><strong aria-hidden="true">10.</strong> WIP - Non-blocking</a></li><li><a href="../nb/00.00.README.html"><strong aria-hidden="true">11.</strong> WIP - Interrupts</a></li><li><a href="../rtfm/00.00.README.html"><strong aria-hidden="true">12.</strong> WIP - Real time</a></li><li><a href="../hal/00.00.README.html"><strong aria-hidden="true">13.</strong> WIP - Creating a HAL</a></li><li class="affix"><a href="../appendix/explore.html">Explore</a></li><li class="affix"><a href="../appendix/gdb.html">GDB cheatsheet</a></li><li class="affix"><a href="../appendix/troubleshooting.html">General troubleshooting</a></li></ol>
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<h1 class="menu-title">MicroRust</h1>
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<main>
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<a class="header" href="#meet-your-hardware" id="meet-your-hardware"><h1>Meet your hardware</h1></a>
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<p>Let's get familiar with the hardware we'll be working with.</p>
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<a class="header" href="#bbc-microbit-the-microbit" id="bbc-microbit-the-microbit"><h2>BBC micro:bit (the "microbit")</h2></a>
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<p align="center">
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<img title="microbit" src="http://tech.microbit.org/docs/hardware/assets/microbit-overview.png">
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</p>
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<p>What does this board contain? For full details see the <a href="http://tech.microbit.org/hardware">microbit hardware page</a>.</p>
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<ul>
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<li>
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<p>A Nordic nRF51822 microcontroller. This microcontroller has</p>
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<ul>
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<li>
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<p>A single core ARM Cortex-M0 processor with a maximum clock frequency of 16 MHz.</p>
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</li>
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<li>
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<p>256 KB of flash memory. (1 KB = 10<strong>24</strong> bytes)</p>
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</li>
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<li>
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<p>16 KB of static RAM.</p>
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</li>
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<li>
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<p>many "peripherals": timers, GPIO, I2C, SPI, UART, etc.</p>
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</li>
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<li>
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<p>This microcontroller operates at (around) 3.3V.</p>
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</li>
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</ul>
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</li>
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<li>
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<p>2 user buttons on the front and 1 reset button on the back.</p>
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</li>
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<li>
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<p>A 5x5 array of user LEDs.</p>
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</li>
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<li>
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<p>A configureable 23-pin edge connector</p>
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</li>
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<li>
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<p>A 2.4GHz radio transciever with support for <a href="https://en.wikipedia.org/wiki/Bluetooth_Low_Energy">bluetooth low energy</a> (BLE).</p>
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</li>
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</ul>
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<ul>
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<li>
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<p>An on-core nRF51 temperature sensor.</p>
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</li>
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<li>
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<p>An NXP/Freescale MMA8652 3-axis <a href="https://en.wikipedia.org/wiki/Accelerometer">accelerometer</a>.</p>
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</li>
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</ul>
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<ul>
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<li>An NXP/Freescale MAG3110 3-axis <a href="https://en.wikipedia.org/wiki/Magnetometer">magnetometer</a>.</li>
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</ul>
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<ul>
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<li>A second microcontroller: NXP/Freescale KL26Z. This microcontroller handles the USB interface,
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communication between your computer and the main microcontroller,
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and converting the USB's input voltage from 5V to 3.3V.</li>
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</ul>
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<a class="header" href="#micro-usb-cable" id="micro-usb-cable"><h2>Micro-USB Cable</h2></a>
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<p>This comes with your microbit but can be any generic cable,
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and is used to connect the microbit to your computer.</p>
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<a class="header" href="#external-battery-pack" id="external-battery-pack"><h2>External battery pack</h2></a>
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<p>The external battery pack that comes with the microbit will not be used explicitly as part of this guide,
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but feel free to use it to test your software without being tethered to a computer.</p>
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<a class="header" href="#plugging-it-in" id="plugging-it-in"><h2>Plugging it in</h2></a>
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<p>You can use the micro-USB cable to power the micro:bit, and to transfer data.
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When you power up a new micro:bit you will see the display light up as the factory-installed program is executed.
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Otherwise, the last program will automatically be executed.
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The black reset button next to the USB input will restart the program being run.</p>
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