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59 lines
1.6 KiB
59 lines
1.6 KiB
# kaleidoscope::driver::bootloader
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We rarely have to work with or care about the bootloader from the user firmware,
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but there's one scenario when we do: if we want to reset the device, and put it
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into bootloader (programmable) mode, we need to do that in a bootloader-specific
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manner.
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This driver provides a number of helpers that implement the reset functionality
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for various bootloaders.
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## Using the driver
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To use the driver, we need to include the appropriate header, from the hardware plugin of
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our keyboard:
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```c++
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#include <kaleidoscope/driver/bootloader/avr/Caterina.h>
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```
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Next, we set up the device `Properties` so that it includes the override for our
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bootloader:
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```c++
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struct OurBoardProps : kaleidoscope::device::BaseProps {
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typedef kaleidoscope::driver::bootloader::avr::Caterina Bootloader;
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};
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```
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The base classes will do all the rest.
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## Methods provided by all bootloader drivers
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### `.rebootBootloader()`
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> Resets the device, and forces it into bootloader (programmable) mode.
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## List of bootloaders
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All of the drivers below live below the `kaleidoscope::driver::bootloader`
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namespace.
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## `avr::Caterina`:
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Used by many (most?) arduino MCUs. Provided by
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`kaleidoscope/driver/bootloader/avr/Caterina.h`.
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### `avr::HalfKay`
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Used by the Teensy2. Provided by `kaleidoscope/driver/bootloader/avr/HalfKay.h`.
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### `avr::FLIP`
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Used by the ATMega32U4 MCUs by default, unless another bootloader has been
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flashed on them. Provided by `kaleidoscope/driver/bootloader/avr/FLIP.h`.
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For this driver to work, one also needs to define the
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`KALEIDOSCOPE_BOOTLOADER_FLIP_WORKAROUND` macro before including the driver
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header, for technical reasons.
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