Calculate the "homing position" using the endstop trigger time instead
of the position of the steppers.
This is in preparation for multi-mcu homing.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Track the offset between driver phase and mcu position. This offset
should be constant as long as neither the driver nor the mcu is reset.
If the offset ever changes, log a warning.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Try to keep the host mcu_position synchronized with the
micro-controller by querying during startup and after every homing
event.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Using sc->last_step_clock for the last position marker does not work
properly, because the stepper.py code calls stepcompress_reset() prior
to calling stepcompress_set_last_position(). Fix by passing an
explicit clock to stepcompress_set_last_position().
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Pass a print_time instead of a clock to get_past_commanded_position().
Fix calculation on steppers that home and use an inverted direction
pin.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The min_stop_interval safety check is fragile and leads to a notable
amount of complexity. Avoid these issues by not programming this
safety check.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
If neither rotation_distance nor step_distance is present, then
generate an error saying rotation_distance is needed (instead of an
error about step_distance).
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Some internal code treats the message ids as encoded "variable length
quantities", while other internal code assumes the message id is
always one byte long. Continue using this scheme, but convert the VLQ
users to use the name "msgtag" while the 1-byte users use "msgid".
Increase the number of available msgids from 96 to 127 - the higher
values get encoded as negative "msgtags".
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add support for automatically calculating the internal step_distance
from new config parameters - rotation_distance, microsteps,
full_steps_per_rotation, and gear_ratio.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Update callers to use the printer.command_error reference instead of
directly using homing.CommandError() when raising or catching errors.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add a new "on_restart" parameter to mcu.add_config_cmd() and only send
those commands on a host restart that does not involve a
micro-controller restart.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Rename try_load_module() so that it uses consistent naming for
"printer objects". Change the function to raise an error by default
if the specified module does not exist.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Use new mcu.lookup_query_command() for all commands that query
information from the micro-controller.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The STEPPER_BUZZ command needs to know if the axis is using radians
instead of millimeters so that it can move a more appropriate
distance.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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>
Now that the homing code does not use get_commanded_position(), it is
no longer necessary to alter the low-level commanded position after a
homing move.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Rename calc_position() to calc_tag_position() and have it calculate
the value of the position from the last stepper set_tag_position()
call. This enables the calc_tag_position() code to be more flexible
as it can be run with arbitrary positions.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Now that the PrinterStepper and MCU_stepper classes have been merged,
there is no need for the add_to_endstop() method.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Move the enable line tracking out of the main stepper.py code. This
simplifies the main kinematic code.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Directly disable all the stepper motors on a global motor_off() from
the StepperEnable() class in stepper_enable.py. This simplifies the
toolhead and kinematic classes.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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>
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>
Kevin O'Connor