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64 lines
2.2 KiB
64 lines
2.2 KiB
The Micro:Bit is a very small ARM Cortex-M0 board designed by the BBC for
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computer education. It's fitted with a [Nordic
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nRF51](https://www.nordicsemi.com/eng/Products/Bluetooth-low-energy/nRF51822)
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Bluetooth enabled microcontroller and an embedded programmer. You can get it
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at:
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- [Pimoroni (UK/EU)](https://shop.pimoroni.com/collections/micro-bit/products/microbit)
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- [Kitronik (UK/EU)](https://www.kitronik.co.uk/5613-bbc-microbit-board-only.html)
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- [ThePiHut (UK/EU)](https://thepihut.com/collections/microbit/products/micro-bit)
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- [AdaFruit (US)](https://www.adafruit.com/products/3530)
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# How to setup the Ada development environment for the Micro:Bit
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GNAT Community now comes with micro:bit and pyOCD support built-in. So you only
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need to download the ARM ELF and the native package from
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[here](https://www.adacore.com/download)
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## pyOCD programmer
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The Micro:Bit comes with an embedded programming/debugging probe implementing
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the
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[CMSIS-DAP](https://docs.mbed.com/docs/mbed-os-handbook/en/latest/advanced/DAP/)
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protocol defined by ARM.
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To use it on Linux, you might need privileges to access the USB ports without
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which the flash program will say "No connected boards".
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On Ubuntu, you can do it by creating (as administrator) the file
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/etc/udev/rules.d/mbed.rules and add the line:
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```
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SUBSYSTEM=="usb", ATTR{idVendor}=="0d28", ATTR{idProduct}=="0204", MODE="0666"
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```
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then restarting the service by doing
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```shell
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$ sudo udevadm trigger
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```
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## Open one of example projects and build it
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Start GNAT Programming studio (GPS) and open the micro:bit example project:
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- [Text Scrolling](text_scrolling/)
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- [Buttons](buttons/)
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- [Digital Output](digital_out/)
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- [Digital Input](digital_in/)
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- [Analog Output](analog_out/)
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- [Analog Input](analog_in/)
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- [Music](music/)
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- [BLE beacon](BLE_beacon/)
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Press F4 and then press Enter to build the project.
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## Program the board
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Plug your micro:bit board with a USB cable, and wait for the system to
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recognize it. This can take a few seconds
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In the GPS toolbar, click on the "flash to board" button to program the
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micro:bit.
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After a few seconds, you should see a text scrolling on the LED matrix.
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That's it, you are ready to hack the micro:bit with Ada!
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