Code

Linear advance advances#24533

Code

Merged

thinkyhead merged 21 commits intoMarlinFirmware:bugfix-2.1.xMarlinFirmware/Marlin:bugfix-2.1.xfrom tombrazier:linearadvanceadvancestombrazier/Marlin:linearadvanceadvancesCopy head branch name to clipboardJul 31, 2022

+305-351

Commits

Commits on Jul 16, 2022

• Use the correct extruder for LA

  tombrazier

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  092b84a

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• Removed redundant multiplications

  tombrazier

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  de35fbd

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• Generate only one extruder pulse train for linear advance

  tombrazier

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  4f3c183

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• Reduce ISR frequency to the minimum possible for LA

  tombrazier

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  0242cfb

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• Use the right step rate for the phase

  tombrazier

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  88bb808

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• Take ADVANCE_STEP_SMOOTHING into account in LIN_ADVANCE.

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  tombrazier

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• First step timing improvements

  tombrazier

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  aaf7d0e

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• Reduce E jitter when E steps count is small compared to block->step_event_count.

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• No need to copy la_advance_rate and la_scaling from current_block, but we do need to prevent a final call to Stepper::advance_isr() after the block is complete

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  7689153

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• Cleaner MIXING_EXTRUDER pulse preparation

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Commits on Jul 21, 2022

• Ensure advance steps do not accumulate over time due to rounding and timing errors

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• Save 1000 bytes of flash (on AVR) for slightly longer stepper ISR

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Commits on Jul 25, 2022

• cleanup

  thinkyhead

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• optimize calc_timer_interval

  thinkyhead

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• move non-inline to cpp

  thinkyhead

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• fix some header / dependencies

  thinkyhead

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Commits on Jul 27, 2022

• Merge remote-tracking branch 'upstream/bugfix-2.1.x' into pr/24533

  thinkyhead

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Commits on Jul 29, 2022

• Resolved step frequency alignment issues between pulse_phase_isr() and advance_isr()

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Commits on Jul 30, 2022

• Set delta_error.e in XYZEval::operator=() and set la_delta_error to the correct value (not XYZEval::operator bool())

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Commits on Jul 31, 2022

• Merge branch 'bugfix-2.1.x' into pr/24533

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• cleanup

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