Merge pull request #1742 from XPila/MK3-bed_pwm_revert

Bed high frequency PWM disabled

Firmware/system_timer.h

@@ -4,7 +4,7 @@
 #define FIRMWARE_SYSTEM_TIMER_H_
 
 #include "Arduino.h"
-#define SYSTEM_TIMER_2
+//#define SYSTEM_TIMER_2
 
 #ifdef SYSTEM_TIMER_2
 #include "timer02.h"