Linear Advance: Only change E DIR when needed (MarlinFirmware#18744)

vgadreau · Dec 9, 2020 · e2df165 · e2df165
1 parent 4ed1979
commit e2df165
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/Marlin/src/module/stepper.cpp b/Marlin/src/module/stepper.cpp
@@ -2277,14 +2277,14 @@ uint32_t Stepper::block_phase_isr() {
  #if ENABLED(MIXING_EXTRUDER)
  // We don't know which steppers will be stepped because LA loop follows,
  // with potentially multiple steps. Set all.
- if (LA_steps >= 0)
+ if (LA_steps > 0)
  MIXER_STEPPER_LOOP(j) NORM_E_DIR(j);
- else
+ else if (LA_steps < 0)
  MIXER_STEPPER_LOOP(j) REV_E_DIR(j);
  #else
- if (LA_steps >= 0)
+ if (LA_steps > 0)
  NORM_E_DIR(stepper_extruder);
- else
+ else if (LA_steps < 0)
  REV_E_DIR(stepper_extruder);
  #endif