Move routine of direction signal of ADVANCE and LIN_ADVANCE from Stepper::isr() to Stepper::advance_isr()
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				| @ -91,7 +91,7 @@ volatile uint32_t Stepper::step_events_completed = 0; // The number of step even | ||||
| 
 | ||||
| #if ENABLED(ADVANCE) || ENABLED(LIN_ADVANCE) | ||||
| 
 | ||||
|   unsigned char Stepper::old_OCR0A; | ||||
|   unsigned char Stepper::old_OCR0A = 0; | ||||
|   volatile unsigned char Stepper::eISR_Rate = 200; // Keep the ISR at a low rate until needed
 | ||||
| 
 | ||||
|   #if ENABLED(LIN_ADVANCE) | ||||
| @ -299,14 +299,16 @@ void Stepper::set_directions() { | ||||
|     SET_STEP_DIR(Z); // C
 | ||||
|   #endif | ||||
| 
 | ||||
|   if (motor_direction(E_AXIS)) { | ||||
|     REV_E_DIR(); | ||||
|     count_direction[E_AXIS] = -1; | ||||
|   } | ||||
|   else { | ||||
|     NORM_E_DIR(); | ||||
|     count_direction[E_AXIS] = 1; | ||||
|   } | ||||
|   #if DISABLED(ADVANCE) && DISABLED(LIN_ADVANCE) | ||||
|     if (motor_direction(E_AXIS)) { | ||||
|       REV_E_DIR(); | ||||
|       count_direction[E_AXIS] = -1; | ||||
|     } | ||||
|     else { | ||||
|       NORM_E_DIR(); | ||||
|       count_direction[E_AXIS] = 1; | ||||
|     } | ||||
|   #endif // !ADVANCE && !LIN_ADVANCE
 | ||||
| } | ||||
| 
 | ||||
| // "The Stepper Driver Interrupt" - This timer interrupt is the workhorse.
 | ||||
| @ -680,15 +682,29 @@ void Stepper::isr() { | ||||
|     old_OCR0A += eISR_Rate; | ||||
|     OCR0A = old_OCR0A; | ||||
| 
 | ||||
|     #define SET_E_STEP_DIR(INDEX) \ | ||||
|       if (e_steps[INDEX]) E## INDEX ##_DIR_WRITE(e_steps[INDEX] < 0 ? INVERT_E## INDEX ##_DIR : !INVERT_E## INDEX ##_DIR) | ||||
| 
 | ||||
|     #define START_E_PULSE(INDEX) \ | ||||
|       if (e_steps[INDEX]) E## INDEX ##_STEP_WRITE(!INVERT_E_STEP_PIN) | ||||
| 
 | ||||
|     #define STOP_E_PULSE(INDEX) \ | ||||
|       if (e_steps[INDEX]) { \ | ||||
|         e_steps[INDEX] <= 0 ? ++e_steps[INDEX] : --e_steps[INDEX]; \ | ||||
|         e_steps[INDEX] < 0 ? ++e_steps[INDEX] : --e_steps[INDEX]; \ | ||||
|         E## INDEX ##_STEP_WRITE(INVERT_E_STEP_PIN); \ | ||||
|       } | ||||
| 
 | ||||
|     SET_E_STEP_DIR(0); | ||||
|     #if E_STEPPERS > 1 | ||||
|       SET_E_STEP_DIR(1); | ||||
|       #if E_STEPPERS > 2 | ||||
|         SET_E_STEP_DIR(2); | ||||
|         #if E_STEPPERS > 3 | ||||
|           SET_E_STEP_DIR(3); | ||||
|         #endif | ||||
|       #endif | ||||
|     #endif | ||||
| 
 | ||||
|     #define CYCLES_EATEN_BY_E 60 | ||||
| 
 | ||||
|     // Step all E steppers that have steps
 | ||||
|  | ||||
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