3DPrinting/MarlinFirmware
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fixed pwm generation at pin D12 and D13 when one of them is used as FAN_PIN on Sanguino, added soft pwm entry for FAN_PIN in temperature.cpp

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This commit is contained in:
oni303 2012-12-16 01:36:57 +01:00
parent 83ea7dc5b9
commit ab09fa4bbf
3 changed files with 22 additions and 0 deletions
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3
Marlin/pins.h
View File

@ -709,6 +709,9 @@
#define LED_PIN -1
#define FAN_PIN -1
#if FAN_PIN == 12 || FAN_PIN ==13
#define FAN_SOFT_PWM
#endif
#ifdef MELZI
#define LED_PIN 28

4
Marlin/planner.cpp
View File

@ -460,10 +460,12 @@ void check_axes_activity()
else
{
#if FAN_PIN > -1
#ifndef FAN_SOFT_PWM
if (fanSpeed != 0){
analogWrite(FAN_PIN,fanSpeed); // If buffer is empty use current fan speed
}
#endif
#endif
}
if((DISABLE_X) && (x_active == 0)) disable_x();
if((DISABLE_Y) && (y_active == 0)) disable_y();
@ -475,6 +477,7 @@ void check_axes_activity()
disable_e2();
}
#if FAN_PIN > -1
#ifndef FAN_SOFT_PWM
if((fanSpeed == 0) && (fan_speed ==0))
{
analogWrite(FAN_PIN, 0);
@ -484,6 +487,7 @@ void check_axes_activity()
{
analogWrite(FAN_PIN,tail_fan_speed);
}
#endif
#endif
#ifdef AUTOTEMP
getHighESpeed();

15
Marlin/temperature.cpp
View File

@ -96,6 +96,11 @@ static volatile bool temp_meas_ready = false;
#endif //PIDTEMPBED
static unsigned char soft_pwm[EXTRUDERS];
static unsigned char soft_pwm_bed;
#ifdef FAN_SOFT_PWM
static unsigned char soft_pwm_fan;
#endif
#if EXTRUDERS > 3
# error Unsupported number of extruders
@ -597,6 +602,9 @@ void tp_init()
#ifdef FAST_PWM_FAN
setPwmFrequency(FAN_PIN, 1); // No prescaling. Pwm frequency = F_CPU/256/8
#endif
#ifdef FAN_SOFT_PWM
soft_pwm_fan=(unsigned char)fanSpeed;
#endif
#endif
#ifdef HEATER_0_USES_MAX6675
@ -929,6 +937,10 @@ ISR(TIMER0_COMPB_vect)
soft_pwm_b = soft_pwm_bed;
if(soft_pwm_b > 0) WRITE(HEATER_BED_PIN,1);
#endif
#ifdef FAN_SOFT_PWM
soft_pwm_fan =(unsigned char) fanSpeed;
if(soft_pwm_fan > 0) WRITE(FAN_PIN,1);
#endif
}
if(soft_pwm_0 <= pwm_count) WRITE(HEATER_0_PIN,0);
#if EXTRUDERS > 1
@ -940,6 +952,9 @@ ISR(TIMER0_COMPB_vect)
#if HEATER_BED_PIN > -1
if(soft_pwm_b <= pwm_count) WRITE(HEATER_BED_PIN,0);
#endif
#ifdef FAN_SOFT_PWM
if(soft_pwm_fan <= pwm_count) WRITE(FAN_PIN,0);
#endif
pwm_count++;
pwm_count &= 0x7f;