Tweak fan kickstart / speed code

.travis.yml

@@ -188,7 +188,7 @@ script:
   - opt_set_adv FAN_MIN_PWM 50
   - opt_set_adv FAN_KICKSTART_TIME 100
   - opt_set_adv XY_FREQUENCY_LIMIT  15
-  - opt_enable_adv SHOW_TEMP_ADC_VALUES HOME_Y_BEFORE_X EMERGENCY_PARSER
+  - opt_enable_adv SHOW_TEMP_ADC_VALUES HOME_Y_BEFORE_X EMERGENCY_PARSER FAN_KICKSTART_TIME
   - opt_enable_adv ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED ADVANCED_OK
   - opt_enable_adv VOLUMETRIC_DEFAULT_ON NO_WORKSPACE_OFFSETS ACTION_ON_KILL
   - opt_enable_adv EXTRA_FAN_SPEED FWERETRACT Z_DUAL_STEPPER_DRIVERS Z_DUAL_ENDSTOPS

Marlin/src/module/planner.cpp

@@ -421,76 +421,35 @@ void Planner::check_axes_activity() {
   unsigned char axis_active[NUM_AXIS] = { 0 },
                 tail_fan_speed[FAN_COUNT];
 
-  #if FAN_COUNT > 0
-    for (uint8_t i = 0; i < FAN_COUNT; i++) tail_fan_speed[i] = fanSpeeds[i];
-  #endif
-
   #if ENABLED(BARICUDA)
     #if HAS_HEATER_1
-      uint8_t tail_valve_pressure = baricuda_valve_pressure;
+      uint8_t tail_valve_pressure;
     #endif
     #if HAS_HEATER_2
-      uint8_t tail_e_to_p_pressure = baricuda_e_to_p_pressure;
+      uint8_t tail_e_to_p_pressure;
     #endif
   #endif
 
   if (blocks_queued()) {
 
-    #if FAN_COUNT > 0
-      for (uint8_t i = 0; i < FAN_COUNT; i++) tail_fan_speed[i] = block_buffer[block_buffer_tail].fan_speed[i];
-    #endif
-
-    block_t* block;
-
-    #if ENABLED(BARICUDA)
-      block = &block_buffer[block_buffer_tail];
-      #if HAS_HEATER_1
-        tail_valve_pressure = block->valve_pressure;
-      #endif
-      #if HAS_HEATER_2
-        tail_e_to_p_pressure = block->e_to_p_pressure;
-      #endif
-    #endif
-
-    for (uint8_t b = block_buffer_tail; b != block_buffer_head; b = next_block_index(b)) {
-      block = &block_buffer[b];
-      LOOP_XYZE(i) if (block->steps[i]) axis_active[i]++;
-    }
-  }
-  #if ENABLED(DISABLE_X)
-    if (!axis_active[X_AXIS]) disable_X();
-  #endif
-  #if ENABLED(DISABLE_Y)
-    if (!axis_active[Y_AXIS]) disable_Y();
-  #endif
-  #if ENABLED(DISABLE_Z)
-    if (!axis_active[Z_AXIS]) disable_Z();
-  #endif
-  #if ENABLED(DISABLE_E)
-    if (!axis_active[E_AXIS]) disable_e_steppers();
-  #endif
-
     #if FAN_COUNT > 0
 
-    #ifdef FAN_MIN_PWM
-      #define CALC_FAN_SPEED(f) (tail_fan_speed[f] ? ( FAN_MIN_PWM + (tail_fan_speed[f] * (255 - FAN_MIN_PWM)) / 255 ) : 0)
-    #else
-      #define CALC_FAN_SPEED(f) tail_fan_speed[f]
-    #endif
+      for (uint8_t i = 0; i < FAN_COUNT; i++)
+        tail_fan_speed[i] = block_buffer[block_buffer_tail].fan_speed[i];
 
       #ifdef FAN_KICKSTART_TIME
 
         static millis_t fan_kick_end[FAN_COUNT] = { 0 };
 
         #define KICKSTART_FAN(f)                         \
-        if (tail_fan_speed[f]) { \
+          if (tail_fan_speed[f]) {                       \ // is the fan turned on?
             millis_t ms = millis();                      \
-          if (fan_kick_end[f] == 0) { \
-            fan_kick_end[f] = ms + FAN_KICKSTART_TIME; \
-            tail_fan_speed[f] = 255; \
-          } else if (PENDING(ms, fan_kick_end[f])) \
-            tail_fan_speed[f] = 255; \
-        } else fan_kick_end[f] = 0
+            if (fan_kick_end[f] == 0) {                  \ // not yet kickstarted?
+              fan_kick_end[f] = ms + FAN_KICKSTART_TIME; \ // kickstart until this time
+              tail_fan_speed[f] = 255;                   \ // full speed
+            } else if (PENDING(ms, fan_kick_end[f]))     \ // kickstart in progress?
+              tail_fan_speed[f] = 255;                   \ // keep full speed going
+          } else fan_kick_end[f] = 0                       // fan off? kick next time
 
         #if HAS_FAN0
           KICKSTART_FAN(0);
@@ -504,6 +463,12 @@ void Planner::check_axes_activity() {
 
       #endif // FAN_KICKSTART_TIME
 
+      #ifdef FAN_MIN_PWM
+        #define CALC_FAN_SPEED(f) (tail_fan_speed[f] ? ( FAN_MIN_PWM + (tail_fan_speed[f] * (255 - FAN_MIN_PWM)) / 255 ) : 0)
+      #else
+        #define CALC_FAN_SPEED(f) tail_fan_speed[f]
+      #endif
+
       #if ENABLED(FAN_SOFT_PWM)
         #if HAS_FAN0
           thermalManager.soft_pwm_amount_fan[0] = CALC_FAN_SPEED(0);
@@ -528,6 +493,51 @@ void Planner::check_axes_activity() {
 
     #endif // FAN_COUNT > 0
 
+    block_t* block;
+
+    #if ENABLED(BARICUDA)
+      block = &block_buffer[block_buffer_tail];
+      #if HAS_HEATER_1
+        tail_valve_pressure = block->valve_pressure;
+      #endif
+      #if HAS_HEATER_2
+        tail_e_to_p_pressure = block->e_to_p_pressure;
+      #endif
+    #endif
+
+    for (uint8_t b = block_buffer_tail; b != block_buffer_head; b = next_block_index(b)) {
+      block = &block_buffer[b];
+      LOOP_XYZE(i) if (block->steps[i]) axis_active[i]++;
+    }
+  }
+  else {
+    #if FAN_COUNT > 0
+      for (uint8_t i = 0; i < FAN_COUNT; i++) tail_fan_speed[i] = fanSpeeds[i];
+    #endif
+
+    #if ENABLED(BARICUDA)
+      #if HAS_HEATER_1
+        tail_valve_pressure = baricuda_valve_pressure;
+      #endif
+      #if HAS_HEATER_2
+        tail_e_to_p_pressure = baricuda_e_to_p_pressure;
+      #endif
+    #endif
+  }
+
+  #if ENABLED(DISABLE_X)
+    if (!axis_active[X_AXIS]) disable_X();
+  #endif
+  #if ENABLED(DISABLE_Y)
+    if (!axis_active[Y_AXIS]) disable_Y();
+  #endif
+  #if ENABLED(DISABLE_Z)
+    if (!axis_active[Z_AXIS]) disable_Z();
+  #endif
+  #if ENABLED(DISABLE_E)
+    if (!axis_active[E_AXIS]) disable_e_steppers();
+  #endif
+
   #if ENABLED(AUTOTEMP)
     getHighESpeed();
   #endif