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Nava 909 alternative firmware

Based on the 1.028b firmware by e-licktronics. This branch contains the source code of the original firmware. If you want to check out the additional features, switch to the features branch!

Setup the development environment

I use Arduino IDE 2.0 for development, here is how I set it up:

  • Open the project (Nava_v1_028beta\Nava_v1_028beta.ino)
  • Open Preferences and paste the following link into Additional boards manager URLs: https://mcudude.github.io/MightyCore/package_MCUdude_MightyCore_index.json
  • Open the Board Manager, search for MightyCore and download the package
  • Select the ATmega1284 board
  • Open the Library Manager and install the LiquidCrystal library

You are now ready to develop and compile the project.

Compile and upload the firmware

Here is how I do it using MIDI SysEx:

  • Compile and export the source code (Sketch/Export compiled Binary). This creates a build/MightyCore.avr.1284 directory inside your project directory where your compiled binaries are.
  • Open a command line interface at the root of the repository and execute the following command (I use Python 2.7 so it probably doesn't work with 3.x right off the bat):

python tools/hex2sysex/hex2sysex.py -o Nava_v1_028beta/build/MightyCore.avr.1284/firmware.syx Nava_v1_028beta/build/MightyCore.avr.1284/Nava_v1_028beta.ino.with_bootloader.hex -s

  • Open MIDI-OX, set the SysEx buffer size to 64 bytes
  • Turn on the Nava with the step buttons 1, 3 and 5 pressed
  • Send the firmware.syx file to the MIDI input of the Nava (this will take a couple minutes, you should see the step buttons showing the progress)