Move BACKLIGHT_PWM_PERIOD to correct docs section (#22480)
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@ -40,7 +40,6 @@ Add the following to your `config.h`:
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|`BACKLIGHT_DEFAULT_ON` |`true` |Enable backlight upon clearing the EEPROM |
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|`BACKLIGHT_DEFAULT_BREATHING`|`false` |Whether to enable backlight breathing upon clearing the EEPROM |
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|`BACKLIGHT_DEFAULT_LEVEL` |`BACKLIGHT_LEVELS`|The default backlight level to use upon clearing the EEPROM |
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|`BACKLIGHT_PWM_PERIOD` |2048Hz |Defaults to `BACKLIGHT_PWM_COUNTER_FREQUENCY / 2048`, which results in a PWM frequency of 2048Hz. |
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Unless you are designing your own keyboard, you generally should not need to change the `BACKLIGHT_PIN` or `BACKLIGHT_ON_STATE`.
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@ -174,11 +173,13 @@ Depending on the ChibiOS board configuration, you may need to enable PWM at the
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The following `#define`s apply only to the `pwm` driver:
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|Define |Default |Description |
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|-----------------------|--------|-----------------------------------|
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|`BACKLIGHT_PWM_DRIVER` |`PWMD4` |The PWM driver to use |
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|`BACKLIGHT_PWM_CHANNEL`|`3` |The PWM channel to use |
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|`BACKLIGHT_PAL_MODE` |`2` |The pin alternative function to use|
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|Define |Default |Description |
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|-----------------------|-------------|---------------------------------------------------------------|
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|`BACKLIGHT_PWM_DRIVER` |`PWMD4` |The PWM driver to use |
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|`BACKLIGHT_PWM_CHANNEL`|`3` |The PWM channel to use |
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|`BACKLIGHT_PAL_MODE` |`2` |The pin alternative function to use |
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|`BACKLIGHT_PWM_PERIOD` |*Not defined*|The PWM period in counter ticks - Default is platform dependent|
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Refer to the ST datasheet for your particular MCU to determine these values. For example, these defaults are set up for pin `B8` on a Proton-C (STM32F303) using `TIM4_CH3` on AF2. Unless you are designing your own keyboard, you generally should not need to change them.
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