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31 lines
1.8 KiB
Markdown
31 lines
1.8 KiB
Markdown
## Pre-built binaries
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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
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or you are unsure whether these apply to your board, please start a ticket or a discussion**. Do NOT attempt to flash these with an SWD programmer. They are not linked for the top of flash (0x08000000). Furthermore, they *must* be used in conjunction with the MAIANA bootloader and should only be written via the UART. The bootloader will checksum them, write their metadata in a dedicated flash page, and only then will it execute them.
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### How to select the right firmware
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Launch the MAIANA app and connect to the transponder. You may need to disable / disconnect MAIANA from Signal K first.
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- Your board's hardware revision (example: 11.6.0)
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- Your board's MCU model (example: STM32L422)
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- Your board's firmware revision (example: 4.0.0)
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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.
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## Firmware update history
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### Version 4.1.0
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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
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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)
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### Version 4.0.0
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This firmware release makes use of the new MAIANA bootloader.
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