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Added function for controlling controller cooling fan

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blddk 2011-10-16 15:55:42 +03:00
parent 01789743f6
commit 7eef273385
1 changed files with 34 additions and 0 deletions
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34
Sprinter/Sprinter.pde
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@ -245,6 +245,10 @@ void setup()
if(!E_ENABLE_ON) WRITE(E_ENABLE_PIN,HIGH);
#endif
#ifdef CONTROLLERFAN_PIN
SET_OUTPUT(CONTROLLERFAN_PIN); //Set pin used for driver cooling fan
#endif
//endstops and pullups
#ifdef ENDSTOPPULLUPS
#if X_MIN_PIN > -1
@ -1441,6 +1445,32 @@ int read_max6675()
}
#endif
#ifdef CONTROLLERFAN_PIN
unsigned long lastMotor = 0; //Save the time for when a motor was turned on last
unsigned long lastMotorCheck = 0;
void controllerFan()
{
if ((millis() - lastMotorCheck) >= 2500) //Not a time critical function, so we only check every 2500ms
{
lastMotorCheck = millis();
if(!digitalRead(X_ENABLE_PIN) || !digitalRead(Y_ENABLE_PIN) || !digitalRead(Z_ENABLE_PIN) || !digitalRead(E_ENABLE_PIN)) //If any of the drivers are enabled...
{
lastMotor = millis(); //... set time to NOW so the fan will turn on
}
if ((millis() - lastMotor) >= (CONTROLLERFAN_SEC*1000) || lastMotor == 0) //If the last time any driver was enabled, is longer since than CONTROLLERSEC...
{
digitalWrite(CONTROLLERFAN_PIN, LOW); //... turn the fan off
}
else
{
digitalWrite(CONTROLLERFAN_PIN, HIGH); //... turn the fan on
}
}
}
#endif
void manage_heater()
{
@ -1579,6 +1609,10 @@ void manage_heater()
WRITE(HEATER_1_PIN,HIGH);
}
#endif
#ifdef CONTROLLERFAN_PIN
controllerFan(); //Check if fan should be turned on to cool stepper drivers down
#endif
}
#if defined (HEATER_USES_THERMISTOR) || defined (BED_USES_THERMISTOR)