Fix OCR / PWM calculation (MarlinFirmware#18094)

Fixes MarlinFirmware#17968
vgadreau · May 29, 2020 · 9b27c4a · 9b27c4a
1 parent 65660b1
commit 9b27c4a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Marlin/src/HAL/AVR/fast_pwm.cpp b/Marlin/src/HAL/AVR/fast_pwm.cpp
@@ -274,7 +274,7 @@ void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size/*=255
     else
       top = *timer.ICRn; // top = ICRn
 
-    _SET_OCRnQ(timer.OCRnQ, timer.q, v * float(top / v_size)); // Scale 8/16-bit v to top value
+    _SET_OCRnQ(timer.OCRnQ, timer.q, v * float(top) / float(v_size)); // Scale 8/16-bit v to top value
   }
 }