Support altering the extruder distance using the higher-level
rotation_distance. This is in preparation for removal of the
SET_EXTRUDER_STEP_DISTANCE command.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Commit 689231df changed the default step_pulse_duration to 100ns for
TMC drivers that are configured in UART/SPI mode, but it failed to
document that change in Config_Changes.md and Config_Reference.md.
Update those documents to reflect that change.
Update the code so that a user may specify a custom
step_pulse_duration even on TMC drivers that are configured in
UART/SPI mode. This may be useful for drivers that use a level
shifter on the step pin that requires more than a ~300ns to detect a
level change.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add an optimized step function for drivers that support stepping on
both rising and falling edges of the step pin. Enable this
optimization on 32bit ARM micro-controllers. Automatically detect
this capability in the host code and enable on TMC drivers running in
SPI/UART mode.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Remove the STEP_DELAY Kconfig option and replace it with a per-stepper
step_pulse_duration printer.cfg config option.
The AVR code will continue to have optimized code to step and "unstep"
in the same function (which is automatically activated when the step
delay is 40 ticks or less). This change removes the Kconfig option
for single function step/unstep on 32bit processors.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
When adding steppers to a `PrinterRail`, detect duplicated `endstop_pin`
settings and add them to the already-registered endstop.
Signed-off-by: Lasse Dalegaard <dalegaard@gmail.com>
Convert stepper.get_past_commanded_position() to the more general
stepper.mcu_to_commanded_position().
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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>
Kevin O'Connor
Lasse Dalegaard
David Smith
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