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Support for multiple PWM fans

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This commit is contained in:
Scott Lahteine
2016-03-05 18:27:45 -08:00
parent 637cc03686
commit 4bbea5124d
11 changed files with 312 additions and 75 deletions
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101
Marlin/planner.cpp
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@@ -93,6 +93,10 @@ unsigned long axis_steps_per_sqr_second[NUM_AXIS];
bool autotemp_enabled = false;
#endif
#if ENABLED(FAN_SOFT_PWM)
extern unsigned char fanSpeedSoftPwm[FAN_COUNT];
#endif
//===========================================================================
//============ semi-private variables, used in inline functions =============
//===========================================================================
@@ -399,7 +403,12 @@ void plan_init() {
void check_axes_activity() {
unsigned char axis_active[NUM_AXIS] = { 0 },
tail_fan_speed = fanSpeed;
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)
unsigned char tail_valve_pressure = ValvePressure,
tail_e_to_p_pressure = EtoPPressure;
@@ -408,13 +417,19 @@ void check_axes_activity() {
block_t* block;
if (blocks_queued()) {
uint8_t block_index = block_buffer_tail;
tail_fan_speed = block_buffer[block_index].fan_speed;
#if FAN_COUNT > 0
for (uint8_t i = 0; i < FAN_COUNT; i++) tail_fan_speed[i] = block_buffer[block_index].fan_speed[i];
#endif
#if ENABLED(BARICUDA)
block = &block_buffer[block_index];
tail_valve_pressure = block->valve_pressure;
tail_e_to_p_pressure = block->e_to_p_pressure;
#endif
while (block_index != block_buffer_head) {
block = &block_buffer[block_index];
for (int i = 0; i < NUM_AXIS; i++) if (block->steps[i]) axis_active[i]++;
@@ -439,32 +454,65 @@ void check_axes_activity() {
}
#endif
#if HAS_FAN
#ifdef FAN_KICKSTART_TIME
static millis_t fan_kick_end = 0;
if (tail_fan_speed) {
millis_t ms = millis();
if (fan_kick_end == 0) {
fan_kick_end = ms + FAN_KICKSTART_TIME;
tail_fan_speed = 255; // Starting up.
}
else if (ms < fan_kick_end)
tail_fan_speed = 255; // Still spinning up.
else
fan_kick_end = 0;
}
#endif //FAN_KICKSTART_TIME
#if FAN_COUNT > 0
#if defined(FAN_MIN_PWM)
#define CALC_FAN_SPEED (tail_fan_speed ? ( FAN_MIN_PWM + (tail_fan_speed * (255 - (FAN_MIN_PWM))) / 255 ) : 0)
#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 tail_fan_speed
#endif // FAN_MIN_PWM
#define CALC_FAN_SPEED(f) tail_fan_speed[f]
#endif
#ifdef FAN_KICKSTART_TIME
static millis_t fan_kick_end[FAN_COUNT] = { 0 }, ms = millis();
#define KICKSTART_FAN(f) \
if (tail_fan_speed[f]) { \
if (fan_kick_end[f] == 0) { \
fan_kick_end[f] = ms + FAN_KICKSTART_TIME; \
tail_fan_speed[f] = 255; \
} \
else if (fan_kick_end[f] > ms) \
tail_fan_speed[f] = 255; \
else \
fan_kick_end[f] = 0; \
}
#if HAS_FAN0
KICKSTART_FAN(0);
#endif
#if HAS_FAN1
KICKSTART_FAN(1);
#endif
#if HAS_FAN2
KICKSTART_FAN(2);
#endif
#endif //FAN_KICKSTART_TIME
#if ENABLED(FAN_SOFT_PWM)
fanSpeedSoftPwm = CALC_FAN_SPEED;
#if HAS_FAN0
fanSpeedSoftPwm[0] = CALC_FAN_SPEED(0);
#endif
#if HAS_FAN1
fanSpeedSoftPwm[1] = CALC_FAN_SPEED(1);
#endif
#if HAS_FAN2
fanSpeedSoftPwm[2] = CALC_FAN_SPEED(2);
#endif
#else
analogWrite(FAN_PIN, CALC_FAN_SPEED);
#endif // FAN_SOFT_PWM
#endif // HAS_FAN
#if HAS_FAN0
analogWrite(FAN_PIN, CALC_FAN_SPEED(0));
#endif
#if HAS_FAN1
analogWrite(FAN1_PIN, CALC_FAN_SPEED(1));
#endif
#if HAS_FAN2
analogWrite(FAN2_PIN, CALC_FAN_SPEED(2));
#endif
#endif
#endif // FAN_COUNT > 0
#if ENABLED(AUTOTEMP)
getHighESpeed();
@@ -576,7 +624,10 @@ float junction_deviation = 0.1;
// Bail if this is a zero-length block
if (block->step_event_count <= dropsegments) return;
block->fan_speed = fanSpeed;
#if FAN_COUNT > 0
for (uint8_t i = 0; i < FAN_COUNT; i++) block->fan_speed[i] = fanSpeeds[i];
#endif
#if ENABLED(BARICUDA)
block->valve_pressure = ValvePressure;
block->e_to_p_pressure = EtoPPressure;