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Set FAST_PWM_FAN default frequency to 1KHz #23326

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Dec 21, 2021
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10 changes: 7 additions & 3 deletions Marlin/src/inc/Conditionals_post.h
Original file line number Diff line number Diff line change
Expand Up @@ -2668,10 +2668,14 @@
#endif

/**
* FAST PWM FAN Settings
* FAST PWM FAN default PWM frequency
*/
#if ENABLED(FAST_PWM_FAN) && !defined(FAST_PWM_FAN_FREQUENCY)
#define FAST_PWM_FAN_FREQUENCY ((F_CPU) / (2 * 255 * 1)) // Fan frequency default
#if !defined(FAST_PWM_FAN_FREQUENCY) && ENABLED(FAST_PWM_FAN)
#ifdef __AVR__
#define FAST_PWM_FAN_FREQUENCY ((F_CPU) / (2 * 255 * 1))
#else
#define FAST_PWM_FAN_FREQUENCY 1000U
#endif
#endif

/**
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