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>
The Trinamic specs aren't consistent with upper vs lower case, which
can be confusing. Improve clarity by using lower case names
consistently in the code. Register names will continue to use all
upper case naming in the code.
Update the SET_TMC_FIELD command to automatically convert field names
to lower case.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
With commit 53b10d3a the setup of sensorless homing could occur before
the driver was enabled which would cause the reinitialization of the
driver settings to undo the sensorless homing setup.
Use set_field() when setting the sensorless homing registers so that
it wont conflict with a driver init.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Check the status of all Trinamic stepper motor drivers once a second.
If the driver reports an error then invoke a shutdown. Also log any
serious warnings.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Send the full TMC stepper motor driver initialization sequence every
time the driver is enabled.
Don't raise an error on startup if unable to contact a tmc2208/tmc2209
driver. If the driver is still unavailable when it is enabled then a
shutdown will be issued. This allows users to troubleshoot (and
possibly bring up communication to the driver) prior to enabling the
driver.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Refactor the tmc driver implementations so that there is a single
implementation of the SET_TMC_CURRENT command.
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>
It's not valid to set the TPWMTHRS in a "klippy:connect" event handler
because the TMCVirtualPinHelper and TMCCommandHelper classes were
expecting that field to be set during the config reading phase.
Revert "tmc: Fix typo preventing stealthchop threshold from being set"
This reverts commit 7d76067ff9.
Revert "tmc: Query the stepper step_distance from the stepper object"
This reverts commit 67b2852249.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Collapse the "homing:move_begin", "homing:move_end", home_prepare(),
and home_finalize() into two new events: "homing:homing_move_begin"
and "homing:homing_move_end". This simplifies the homing code.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Don't obtain the step_distance from the config, instead obtain
step_distance from the instantiated stepper object.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Automatically detect if the stepper has a dedicated enable line. If
it does not, then automatically enable virtual enable support.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add support for enabling the stepper via the communication channel.
This improves support for boards with a shared enable line.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
A print_time of zero may translate to a negative clock on a secondary
micro-controller, which would cause an internal error. Change the
code to pass a real print_time or None if it is not needed.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Only the tmc2208 driver needs special read register translation logic.
Rework the code so a default implementation is available for all the
other drivers.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Kevin O'Connor
Trevor Jones