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96 lines
5.4 KiB
Markdown
96 lines
5.4 KiB
Markdown
# Converters
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Since many drop-in replacement controllers now exist, we've done our best to make them easy to use in existing designs.
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This page documents the handy automated process for converting keyboards.
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### Supported Converters
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Currently the following converters are available:
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| From | To |
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|------------|-------------------|
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| `promicro` | `proton_c` |
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| `promicro` | `kb2040` |
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| `promicro` | `promicro_rp2040` |
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See below for more in depth information on each converter.
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## Overview
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Each converter category is broken down by its declared `pin compatibility`.
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This ensures that only valid combinations are attempted.
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You can generate the firmware by appending `-e CONVERT_TO=<target>` to your compile/flash command. For example:
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```sh
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qmk flash -c -kb keebio/bdn9/rev1 -km default -e CONVERT_TO=proton_c
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```
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You can also add the same `CONVERT_TO=<target>` to your keymap's `rules.mk`, which will accomplish the same thing.
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?> If you get errors about `PORTB/DDRB`, etc not being defined, so you'll need to convert the keyboard's code to use the [GPIO Controls](gpio_control.md) that will work for both ARM and AVR. This shouldn't affect the AVR builds at all.
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### Conditional Configuration
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Once a converter is enabled, it exposes the `CONVERT_TO_<target_uppercase>` flag that you can use in your code with `#ifdef`s, For example:
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```c
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#ifdef CONVERT_TO_PROTON_C
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// Proton C code
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#else
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// Pro Micro code
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#endif
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```
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## Pro Micro
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If a board currently supported in QMK uses a [Pro Micro](https://www.sparkfun.com/products/12640) (or compatible board), the supported alternative controllers are:
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| Device | Target |
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|------------------------------------------------------------------------|-------------------|
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| [Proton C](https://qmk.fm/proton-c/) | `proton_c` |
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| [Adafruit KB2040](https://learn.adafruit.com/adafruit-kb2040) | `kb2040` |
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| [SparkFun Pro Micro - RP2040](https://www.sparkfun.com/products/18288) | `promicro_rp2040` |
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Converter summary:
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| Target | Argument | `rules.mk` | Condition |
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|-------------------|---------------------------------|------------------------------|-------------------------------------|
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| `proton_c` | `-e CONVERT_TO=proton_c` | `CONVERT_TO=proton_c` | `#ifdef CONVERT_TO_PROTON_C` |
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| `kb2040` | `-e CONVERT_TO=kb2040` | `CONVERT_TO=kb2040` | `#ifdef CONVERT_TO_KB2040` |
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| `promicro_rp2040` | `-e CONVERT_TO=promicro_rp2040` | `CONVERT_TO=promicro_rp2040` | `#ifdef CONVERT_TO_PROMICRO_RP2040` |
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### Proton C :id=proton_c
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The Proton C only has one on-board LED (C13), and by default, the TXLED (D5) is mapped to it. If you want the RXLED (B0) mapped to it instead, add this like to your `config.h`:
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```c
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#define CONVERT_TO_PROTON_C_RXLED
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```
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The following defaults are based on what has been implemented for STM32 boards.
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| Feature | Notes |
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|----------------------------------------------|------------------------------------------------------------------------------------------------------------------|
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| [Audio](feature_audio.md) | Enabled |
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| [RGB Lighting](feature_rgblight.md) | Disabled |
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| [Backlight](feature_backlight.md) | Forces [task driven PWM](feature_backlight.md#software-pwm-driver) until ARM can provide automatic configuration |
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| USB Host (e.g. USB-USB converter) | Not supported (USB host code is AVR specific and is not currently supported on ARM) |
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| [Split keyboards](feature_split_keyboard.md) | Partial - heavily dependent on enabled features |
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### Adafruit KB2040 :id=kb2040
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The following defaults are based on what has been implemented for [RP2040](platformdev_rp2040.md) boards.
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| Feature | Notes |
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|----------------------------------------------|------------------------------------------------------------------------------------------------------------------|
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| [RGB Lighting](feature_rgblight.md) | Enabled via `PIO` vendor driver |
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| [Backlight](feature_backlight.md) | Forces [task driven PWM](feature_backlight.md#software-pwm-driver) until ARM can provide automatic configuration |
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| USB Host (e.g. USB-USB converter) | Not supported (USB host code is AVR specific and is not currently supported on ARM) |
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| [Split keyboards](feature_split_keyboard.md) | Partial via `PIO` vendor driver - heavily dependent on enabled features |
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### SparkFun Pro Micro - RP2040 :id=promicro_rp2040
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Currently identical to [Adafruit KB2040](#kb2040).
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