fl16: Change backlight PWM frequency to 24kHz
The default of 2048Hz causes loud audible noise. Signed-off-by: Daniel Schaefer <dhs@frame.work>
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@ -35,6 +35,8 @@
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#define BACKLIGHT_PWM_DRIVER PWMD4
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#define BACKLIGHT_PWM_CHANNEL RP2040_PWM_CHANNEL_B
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#define BACKLIGHT_BREATHING
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// Change PWM frequency to 24kHz, the default of 2048Hz causes loud noise
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#define BACKLIGHT_PWM_PERIOD BACKLIGHT_PWM_COUNTER_FREQUENCY / 24000
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// I2C for the RBG controller
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#define I2C_DRIVER I2CD1
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@ -35,7 +35,9 @@
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# define BACKLIGHT_PAL_MODE (PAL_MODE_ALTERNATE_PWM | PAL_RP_PAD_DRIVE12 | PAL_RP_GPIO_OE)
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# define BACKLIGHT_PWM_COUNTER_FREQUENCY 1000000
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#ifndef BACKLIGHT_PWM_PERIOD
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# define BACKLIGHT_PWM_PERIOD BACKLIGHT_PWM_COUNTER_FREQUENCY / 2048
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#endif
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# define AUDIO_PWM_PAL_MODE (PAL_MODE_ALTERNATE_PWM | PAL_RP_PAD_DRIVE12 | PAL_RP_GPIO_OE)
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# define AUDIO_PWM_COUNTER_FREQUENCY 500000
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