Commit Graph

8 Commits

Author SHA1 Message Date
Kevin O'Connor acd165cbea stepcompress: Implement a step+dir+step filter
Some stepper motor drivers do not respond well to rapid "step +
direction change + step" events.  In particular, it is believed this
can cause "over current" events on the tmc2208 drivers when they are
in "stealthchop" mode.  Detect these events and remove them from the
generated step times.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2020-03-13 21:53:48 -04:00
Kevin O'Connor d86bf0b927 stepcompress: Move code around in stepcompress.c
Just code movement - no code changes.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2020-03-13 21:53:48 -04:00
Kevin O'Connor bc6c3ba92f stepcompress: Remove "queue append" abstraction
The queue_append system predates the iterative solver - it was useful
when many different kinematic functions directly added steps to the
step compression queues.  With the iterative solver being the only
source of step generation, it is simpler to directly add steps from
the iterative solver code.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2020-03-04 19:43:47 -05:00
Kevin O'Connor c3fe3d0d2c stepcompress: Remove no longer needed stepcompress_set_homing()
Now that homing is implemented via "drip moves", it is no longer
necessary for the stepcompress code to have special homing logic.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2019-07-10 10:43:20 -04:00
Kevin O'Connor 8f747e2720 kin_cartesian: Remove stepcompress_push_const()
All the kinematic code now uses the iterative solver to generate
steps.  Remove the old stepcompress_push_const() mechanism.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-06-20 09:26:10 -04:00
Kevin O'Connor 2511471b0d itersolve: Add kinematic iterative solver code
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-06-20 09:26:10 -04:00
Kevin O'Connor ba3428822d stepcompress: Allow stepcompress_alloc() to be called early
Don't require an mcu connection to allocate the stepcompress object.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-06-20 09:26:10 -04:00
Kevin O'Connor 9a2eb4bedd chelper: Move cartesian and delta kinematics code to their own C files
Move the cartesian and delta specific code to new files
kin_cartesian.c and kin_delta.c.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-06-20 09:26:10 -04:00