[WIP] Add basic FOTA capable bootloader #27
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jonlamb-gh
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Marking this as a WIP for now. Mostly I want to update the documentation, but also provide a path to opt-out for folks not interested in using the bootloader. |
This commit introduces a local lightweight bootloader that enables FOTA firmware updates.
It currently supports firmware updates over TCP via smoltcp IP stack, but stubs are in
place to support updates over CAN as well.
This is the new flash layout:
- first 8 bytes are used to store a sticky word for the bootloader flagging mechanism
- followed by the bootloader firmware at 0x2000_0008
- bootloader configurations are stored in sector 3, 0x0801_8000
- OxCC firmware stored in sector 4, 0x0802_0000
To enter the bootloader, reset the board with the user-button pressed or send the board
a bootloader reset CAN message.
A simple host-side `firmware-updater` Python script is provided as an example tool to
interract with the bootloader over a TCP connection.
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This commit introduces a local lightweight bootloader that enables FOTA firmware updates.
It currently supports firmware updates over TCP via smoltcp IP stack, but stubs are in
place to support updates over CAN as well.
This is the new flash layout:
To enter the bootloader, reset the board with the user-button pressed or send the board
a bootloader reset CAN message.
A simple host-side
firmware-updaterPython script is provided as an example tool tointeract with the bootloader over a TCP connection.