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@ -103,6 +103,10 @@
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#include <SPI.h>
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#endif
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#if ENABLED(MIXING_EXTRUDER)
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#include "../feature/mixing.h"
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#endif
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Stepper stepper; // Singleton
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// public:
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@ -158,12 +162,10 @@ uint32_t Stepper::advance_dividend[XYZE] = { 0 },
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Stepper::decelerate_after, // The point from where we need to start decelerating
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Stepper::step_event_count; // The total event count for the current block
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#if ENABLED(MIXING_EXTRUDER)
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int32_t Stepper::delta_error_m[MIXING_STEPPERS];
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uint32_t Stepper::advance_dividend_m[MIXING_STEPPERS],
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Stepper::advance_divisor_m;
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#elif EXTRUDERS > 1
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uint8_t Stepper::active_extruder; // Active extruder
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#if EXTRUDERS > 1 || ENABLED(MIXING_EXTRUDER)
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uint8_t Stepper::stepper_extruder;
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#else
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constexpr uint8_t Stepper::stepper_extruder;
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#endif
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#if ENABLED(S_CURVE_ACCELERATION)
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@ -301,7 +303,7 @@ int8_t Stepper::count_direction[NUM_AXIS] = { 0, 0, 0, 0 };
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#endif
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#if DISABLED(MIXING_EXTRUDER)
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#define E_APPLY_STEP(v,Q) E_STEP_WRITE(active_extruder, v)
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#define E_APPLY_STEP(v,Q) E_STEP_WRITE(stepper_extruder, v)
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#endif
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void Stepper::wake_up() {
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@ -340,21 +342,23 @@ void Stepper::set_directions() {
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#if DISABLED(LIN_ADVANCE)
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#if ENABLED(MIXING_EXTRUDER)
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// Because this is valid for the whole block we don't know
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// what e-steppers will step. Likely all. Set all.
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if (motor_direction(E_AXIS)) {
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MIXING_STEPPERS_LOOP(j) REV_E_DIR(j);
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MIXER_STEPPER_LOOP(j) REV_E_DIR(j);
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count_direction[E_AXIS] = -1;
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}
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else {
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MIXING_STEPPERS_LOOP(j) NORM_E_DIR(j);
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MIXER_STEPPER_LOOP(j) NORM_E_DIR(j);
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count_direction[E_AXIS] = 1;
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}
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#else
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if (motor_direction(E_AXIS)) {
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REV_E_DIR(active_extruder);
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REV_E_DIR(stepper_extruder);
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count_direction[E_AXIS] = -1;
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}
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else {
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NORM_E_DIR(active_extruder);
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NORM_E_DIR(stepper_extruder);
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count_direction[E_AXIS] = 1;
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}
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#endif
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@ -1387,39 +1391,27 @@ void Stepper::stepper_pulse_phase_isr() {
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PULSE_START(Z);
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#endif
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// Pulse E/Mixing extruders
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#if ENABLED(LIN_ADVANCE)
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// Pulse Extruders
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// Tick the E axis, correct error term and update position
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#if ENABLED(LIN_ADVANCE) || ENABLED(MIXING_EXTRUDER)
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delta_error[E_AXIS] += advance_dividend[E_AXIS];
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if (delta_error[E_AXIS] >= 0) {
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count_position[E_AXIS] += count_direction[E_AXIS];
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#if ENABLED(LIN_ADVANCE)
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delta_error[E_AXIS] -= advance_divisor;
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// Don't step E here - But remember the number of steps to perform
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motor_direction(E_AXIS) ? --LA_steps : ++LA_steps;
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#else // !LIN_ADVANCE && MIXING_EXTRUDER
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// Don't adjust delta_error[E_AXIS] here!
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// Being positive is the criteria for ending the pulse.
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E_STEP_WRITE(mixer.get_next_stepper(), !INVERT_E_STEP_PIN);
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#endif
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}
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#else // !LIN_ADVANCE - use linear interpolation for E also
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#if ENABLED(MIXING_EXTRUDER)
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// Tick the E axis
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delta_error[E_AXIS] += advance_dividend[E_AXIS];
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if (delta_error[E_AXIS] >= 0) {
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count_position[E_AXIS] += count_direction[E_AXIS];
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delta_error[E_AXIS] -= advance_divisor;
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}
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// Tick the counters used for this mix in proper proportion
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MIXING_STEPPERS_LOOP(j) {
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// Step mixing steppers (proportionally)
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delta_error_m[j] += advance_dividend_m[j];
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// Step when the counter goes over zero
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if (delta_error_m[j] >= 0) E_STEP_WRITE(j, !INVERT_E_STEP_PIN);
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}
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#else // !MIXING_EXTRUDER
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#else // !LIN_ADVANCE && !MIXING_EXTRUDER
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#if HAS_E_STEP
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PULSE_START(E);
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#endif
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#endif // !LIN_ADVANCE
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#endif
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#if MINIMUM_STEPPER_PULSE
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// Just wait for the requested pulse duration
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@ -1442,11 +1434,9 @@ void Stepper::stepper_pulse_phase_isr() {
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#if DISABLED(LIN_ADVANCE)
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#if ENABLED(MIXING_EXTRUDER)
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MIXING_STEPPERS_LOOP(j) {
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if (delta_error_m[j] >= 0) {
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delta_error_m[j] -= advance_divisor_m;
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E_STEP_WRITE(j, INVERT_E_STEP_PIN);
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}
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if (delta_error[E_AXIS] >= 0) {
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delta_error[E_AXIS] -= advance_divisor;
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E_STEP_WRITE(mixer.get_stepper(), INVERT_E_STEP_PIN);
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}
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#else // !MIXING_EXTRUDER
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PULSE_STOP(E);
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@ -1717,27 +1707,18 @@ uint32_t Stepper::stepper_block_phase_isr() {
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decelerate_after = current_block->decelerate_after << oversampling;
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#if ENABLED(MIXING_EXTRUDER)
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const uint32_t e_steps = (
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#if ENABLED(LIN_ADVANCE)
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current_block->steps[E_AXIS]
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#else
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step_event_count
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MIXER_STEPPER_SETUP();
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#endif
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);
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MIXING_STEPPERS_LOOP(i) {
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delta_error_m[i] = -int32_t(e_steps);
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advance_dividend_m[i] = current_block->mix_steps[i] << 1;
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}
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advance_divisor_m = e_steps << 1;
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#elif EXTRUDERS > 1
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active_extruder = current_block->active_extruder;
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#if EXTRUDERS > 1
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stepper_extruder = current_block->extruder;
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#endif
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// Initialize the trapezoid generator from the current block.
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#if ENABLED(LIN_ADVANCE)
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#if DISABLED(MIXING_EXTRUDER) && E_STEPPERS > 1
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// If the now active extruder wasn't in use during the last move, its pressure is most likely gone.
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if (active_extruder != last_moved_extruder) LA_current_adv_steps = 0;
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if (stepper_extruder != last_moved_extruder) LA_current_adv_steps = 0;
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#endif
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if ((LA_use_advance_lead = current_block->use_advance_lead)) {
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@ -1752,14 +1733,14 @@ uint32_t Stepper::stepper_block_phase_isr() {
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if (current_block->direction_bits != last_direction_bits
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#if DISABLED(MIXING_EXTRUDER)
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|| active_extruder != last_moved_extruder
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|| stepper_extruder != last_moved_extruder
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#endif
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) {
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last_direction_bits = current_block->direction_bits;
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#if DISABLED(MIXING_EXTRUDER) && EXTRUDERS > 1
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last_moved_extruder = active_extruder;
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#endif
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set_directions();
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#if EXTRUDERS > 1
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last_moved_extruder = stepper_extruder;
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#endif
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}
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// At this point, we must ensure the movement about to execute isn't
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@ -1827,15 +1808,17 @@ uint32_t Stepper::stepper_block_phase_isr() {
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interval = LA_ADV_NEVER;
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#if ENABLED(MIXING_EXTRUDER)
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// We don't know which steppers will be stepped because LA loop follows,
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// with potentially multiple steps. Set all.
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if (LA_steps >= 0)
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MIXING_STEPPERS_LOOP(j) NORM_E_DIR(j);
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MIXER_STEPPER_LOOP(j) NORM_E_DIR(j);
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else
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MIXING_STEPPERS_LOOP(j) REV_E_DIR(j);
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MIXER_STEPPER_LOOP(j) REV_E_DIR(j);
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#else
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if (LA_steps >= 0)
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NORM_E_DIR(active_extruder);
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NORM_E_DIR(stepper_extruder);
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else
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REV_E_DIR(active_extruder);
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REV_E_DIR(stepper_extruder);
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#endif
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// Get the timer count and estimate the end of the pulse
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@ -1848,14 +1831,9 @@ uint32_t Stepper::stepper_block_phase_isr() {
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// Set the STEP pulse ON
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#if ENABLED(MIXING_EXTRUDER)
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MIXING_STEPPERS_LOOP(j) {
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// Step mixing steppers (proportionally)
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delta_error_m[j] += advance_dividend_m[j];
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// Step when the counter goes over zero
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if (delta_error_m[j] >= 0) E_STEP_WRITE(j, !INVERT_E_STEP_PIN);
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}
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E_STEP_WRITE(mixer.get_next_stepper(), !INVERT_E_STEP_PIN);
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#else
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E_STEP_WRITE(active_extruder, !INVERT_E_STEP_PIN);
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E_STEP_WRITE(stepper_extruder, !INVERT_E_STEP_PIN);
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#endif
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// Enforce a minimum duration for STEP pulse ON
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@ -1871,14 +1849,9 @@ uint32_t Stepper::stepper_block_phase_isr() {
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// Set the STEP pulse OFF
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#if ENABLED(MIXING_EXTRUDER)
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MIXING_STEPPERS_LOOP(j) {
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if (delta_error_m[j] >= 0) {
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delta_error_m[j] -= advance_divisor_m;
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E_STEP_WRITE(j, INVERT_E_STEP_PIN);
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}
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}
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E_STEP_WRITE(mixer.get_stepper(), INVERT_E_STEP_PIN);
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#else
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E_STEP_WRITE(active_extruder, INVERT_E_STEP_PIN);
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E_STEP_WRITE(stepper_extruder, INVERT_E_STEP_PIN);
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#endif
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// For minimum pulse time wait before looping
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@ -2106,8 +2079,6 @@ void Stepper::init() {
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endstops.enable(true); // Start with endstops active. After homing they can be disabled
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sei();
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set_directions(); // Init directions to last_direction_bits = 0
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}
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/**
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AnHardt
6 years ago
committed by