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-rw-r--r--docs/proton_c_conversion.md10
-rw-r--r--quantum/stm32/proton_c.mk6
2 files changed, 15 insertions, 1 deletions
diff --git a/docs/proton_c_conversion.md b/docs/proton_c_conversion.md
index be7d50a9f..8014a35e0 100644
--- a/docs/proton_c_conversion.md
+++ b/docs/proton_c_conversion.md
@@ -19,3 +19,13 @@ Before being able to compile, you may get some errors about `PORTB/DDRB`, etc no
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`:
#define CONVERT_TO_PROTON_C_RXLED
+
+## Feature Conversion
+
+These are defaults based on what has been implemented for ARM boards.
+
+| Feature | Notes |
+|-------------------------------------|------------------------------------------------------------------------------------------------------------------|
+| [Audio](feature_audio.md) | Enabled |
+| [RGB Lighting](feature_rgblight.md) | Disabled |
+| [Backlight](feature_backlight.md) | Forces [task driven PWM](feature_backlight.md#software-pwm-driver) until ARM can provide automatic configuration |
diff --git a/quantum/stm32/proton_c.mk b/quantum/stm32/proton_c.mk
index a65e283d3..193e09ca1 100644
--- a/quantum/stm32/proton_c.mk
+++ b/quantum/stm32/proton_c.mk
@@ -3,7 +3,11 @@
# These are defaults based on what has been implemented for ARM boards
AUDIO_ENABLE = yes
RGBLIGHT_ENABLE = no
-BACKLIGHT_ENABLE = no
+
+# Force task driven PWM until ARM can provide automatic configuration
+ifneq ($(strip $(BACKLIGHT_ENABLE)), no)
+ BACKLIGHT_ENABLE = software
+endif
# The rest of these settings shouldn't change