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This directory contains binaries for boards 11.3 and newer *purchased through the OpenMarine store*. If you do not use OpenPlotter This directory contains binaries for boards 11.3 and newer *purchased through the OpenMarine store*. If you do not use OpenPlotter
or you are unsure whether these apply to your board, please start a ticket or a discussion. or you are unsure whether these apply to your board, please start a ticket or a discussion.
### FW 4.1.0 ### How to select the right firmware
Launch the MAIANA app and connect to the transponder. You may need to disable / disconnect MAIANA from Signal K first.
- Your board's hardware revision (example: 11.6.0)
- Your board's MCU model (example: STM32L422)
- Your board's firmware revision (example: 4.0.0)
Locate the appropriate binary in this directory. Ignore the last digit of your board's revision -- it doesn't matter. So if you have board 11.3.0 with an STM32L422 processor, the right binary is maiana-stm32l422-hw11.3-fwXXX.bin where XXX is the latest revision you see here. If you already have this firmware on your board, there is no update.
## Firmware update history
### Version 4.1.0
This firmware release corrects the tuning of the crystal oscillator for the Si4467 chips. This applies to boards made after November 2021 which contain the following This firmware release corrects the tuning of the crystal oscillator for the Si4467 chips. This applies to boards made after November 2021 which contain the following
crystal: crystal:
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The tuning changed by 5 KHz when the design had to migrate to this crystal due to supply problems. See issue [#103](https://github.com/peterantypas/maiana/issues/103) The tuning changed by 5 KHz when the design had to migrate to this crystal due to supply problems. See issue [#103](https://github.com/peterantypas/maiana/issues/103)
### Version 4.0.0
This firmware release makes use of the new MAIANA bootloader.