bissen21/Marlin_Firmware
1
0
Fork 0
Code Issues Pull Requests Projects Releases 4 Wiki Activity

Make max_e_jerk an array to reduce CPU usage (#11118)

Browse Source
This commit is contained in:
Andy Shaw
2018-06-27 03:38:31 +01:00
committed by Scott Lahteine
parent d13f76b7da
commit 3b3029c4bf
5 changed files with 29 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
Marlin/src/module/planner.cpp
View File

@ -126,7 +126,11 @@ float Planner::max_feedrate_mm_s[XYZE_N], // (mm/s) M203 XYZE - Max speeds
#if ENABLED(JUNCTION_DEVIATION)
float Planner::junction_deviation_mm; // (mm) M205 J
#if ENABLED(LIN_ADVANCE)
float Planner::max_e_jerk_factor; // Calculated from junction_deviation_mm
#if ENABLED(DISTINCT_E_FACTORS)
float Planner::max_e_jerk[EXTRUDERS]; // Calculated from junction_deviation_mm
#else
float Planner::max_e_jerk;
#endif
#endif
#else
float Planner::max_jerk[XYZE]; // (mm/s^2) M205 XYZE - The largest speed change requiring no acceleration.
@ -2056,7 +2060,11 @@ bool Planner::_populate_block(block_t * const block, bool split_move,
#if ENABLED(LIN_ADVANCE)
#if ENABLED(JUNCTION_DEVIATION)
#define MAX_E_JERK (max_e_jerk_factor * max_acceleration_mm_per_s2[_EINDEX])
#if ENABLED(DISTINCT_E_FACTORS)
#define MAX_E_JERK max_e_jerk[extruder]
#else
#define MAX_E_JERK max_e_jerk
#endif
#else
#define MAX_E_JERK max_jerk[E_AXIS]
#endif
@ -2569,6 +2577,9 @@ void Planner::reset_acceleration_rates() {
if (AXIS_CONDITION) NOLESS(highest_rate, max_acceleration_steps_per_s2[i]);
}
cutoff_long = 4294967295UL / highest_rate; // 0xFFFFFFFFUL
#if ENABLED(JUNCTION_DEVIATION) && ENABLED(LIN_ADVANCE)
recalculate_max_e_jerk();
#endif
}
// Recalculate position, steps_to_mm if axis_steps_per_mm changes!