Commit Graph

16 Commits

Author SHA1 Message Date
Kevin O'Connor 56cd39f038 itersolve: Support step generation in lead up to and after stepper activity
Add support for generating steps from kinematic functions that
calculate step times based on a range of the motion queue.  It
requires scanning for step generation during the lead up to stepper
activity (when the stepper would nominally be idle).  And it requires
scanning for step generation just after a stepper has nominally become
idle.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2019-11-21 13:17:45 -05:00
Kevin O'Connor 4dbe795ac2 trapq: Implement sentinel nodes on the trapq list
Use sentinels to make list traversal code simpler.  Also add in null
moves so that there are no time gaps in the list.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2019-11-21 13:17:45 -05:00
Kevin O'Connor d39142139e stepper: Remove set_commanded_position() call
Now that the only caller to set_commanded_position() is
set_position(), remove the set_commanded_position() method and pass
the set_position() call directly to the itersolve.c code.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2019-11-13 19:35:26 -05:00
Kevin O'Connor bdc7383e51 itersolve: Improve numerical stability of itersolve_generate_steps() loop
Minor rework of the loop to reduce the chance that numerical stability
could cause an infinite loop.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2019-11-08 14:17:35 -05:00
Kevin O'Connor 1acaaa98c2 trapq: Remove move_fill()
Now that all callers use the trapq system to queue moves, it is no
longer necessary to individually allocate and fill a 'struct move'.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2019-11-06 15:51:51 -05:00
Kevin O'Connor 797dcfcb12 itersolve: Remove unused gen_steps()
Eliminate the old gen_steps() call now that all callers have been
converted to the newer trapq based generate_steps().

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2019-11-06 15:51:51 -05:00
Kevin O'Connor f3ef9c1889 itersolve: Add support for generating steps from a trapq
Support associating a stepper_kinematics with a trapq.  Support
generating steps from a time range on the given trapq.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2019-11-06 15:51:51 -05:00
Kevin O'Connor fdbdb3c707 trapq: Add new trapq.c file with code for trapezoidal velocity handling
Move the "struct move" code from itersolve.c to new file trapq.c.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2019-11-06 15:51:51 -05:00
Kevin O'Connor 374eb98765 polar: Implement bed angle wrapping adjustments in chelper code
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2019-11-06 15:51:51 -05:00
Kevin O'Connor 92993c062b itersolve: Rename calc_position to calc_position_cb
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2019-11-06 15:51:51 -05:00
Kevin O'Connor 9945cc0f46 itersolve: Fix possible infinite loop in itersolve_gen_steps()
If the kinematic position calculation function had an error in it (if
it produces sudden position changes) then it could lead to an infinite
loop in itersolve_gen_steps().

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2019-11-06 15:51:51 -05:00
Kevin O'Connor cb29143939 itersolve: Support calculating a stepper position from a cartesian coordinate
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-07-18 11:51:28 -04:00
Kevin O'Connor 890298d34d itersolve: Support setting the stepper position via a cartesian coordinate
Add support for an itersolve_set_position() function that sets a
stepper position from a cartesian coordinate.  This eliminates the
need for both the python and C code to be able to translate from a
cartesian coordinate to a stepper position.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-06-22 14:09:01 -04:00
Kevin O'Connor 926829e737 itersolve: Move tracking of commanded position to itersolve code
Track the commanded position in just the itersolve.c code instead of
in mcu.py.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-06-20 09:26:10 -04:00
Kevin O'Connor bbe53cf8e5 extruder: Convert to using iterative solver
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