Continue to sample the ADC input pins even if the MCU goes into a
shutdown state. This enables the printer to continue reporting
temperatures even on an mcu error.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Pass the sample_ticks and sample_count parameters directly in the
end_stop_home command instead. This simplifies the code.
Also, simplify calculation of next wakeup time in
end_stop_oversample_event().
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
It is possible to have an acceleration greater than max_z_accel on
XY+Z moves. That needs to be taken into account when calculating the
min_stop_interval. This prevents spurious "No next step" MCU errors.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
It appears some versions of Debian will load the PRU with firmware on
boot, so make sure to always deactivate the PRU before attempting to
activate it with new firmware.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Place a small notch on one side of the square. The notch provides
interesting information on the extruder performance, and it makes it
easier to compare with previous prints of the object.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
If the stepper phases are known then it is possible to arrange for the
0.0 position to occur at a full step. On cartesian style printer,
this makes it possible for the Z levels to occur at full steps (which
may help reduce "Z ribbing").
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Don't discard samples that are less than 500us from the prediction
regardless of the prediction variance. Also, don't use the prediction
variance in the external time estimate.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Several items were recently implemented. Remove the "cubic vs
quadratic" item as investigations into cubic compression weren't
promising.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Some printers can show occasional noise on the endstop pin. Support
sampling the endstop pin multiple times to attempt to filter out this
noise.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Implement a "moving" linear regression between the reported mcu clock
and the sent_time of the get_status message that generated that
report. Use this linear regression to make predictions on the
relationship between the system time and the mcu clock.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
On a retransmit, the sent_time of the command associated with the
given response message isn't accurate.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Revert commit f37fc775. It is not valid to pass a conservative
frequency to serialqueue.set_clock_est() as that function may not be
called for extended periods - a too low frequency would eventually
lead to "Timer too close" mcu errors.
Instead, increase the 1ms time offset to 5ms to avoid corner cases
that could lead to a message arriving too soon.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This prevents divide by zero errors during stats output if the stats
are generated before a connection completes.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Update the homing code to pass in the start of the homing operation to
toolhead.reset_print_time(). This prevents an error when batch
processing gcode files that contain multiple homing operations.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The logging module can build strings directly from printf syntax - no
need to build the string first.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Build a single (very large) logging message with the debug state.
This prevents the output from being fragmented.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Build a single (very large) logging message with the debug state.
This prevents the output from being fragmented.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Accuracy is not as important as ensuring a message is never sent
before it can be received in the serialqueue code. So, use the
smallest frequency ever seen and add the minimum rtt time when setting
set_clock_est().
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Use baud_adjust when determining the receive_time of a message read
from the serial port. This improves the accuracy of the clock
synchronization code.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Instead of tracking the minimum frequency ever observed, attempt to
track the actual frequency of the micro-controller (relative to the
host clock). This improves the stability of the secondary mcu clocks
when multiple mcus are configured.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add support for configuring and controlling the hardware specific to
the revision "B3" Replicape board.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Update the scripts used to install and "flash" the pru
micro-controller code. Also, add a "flash" script for the linux
micro-controller code. This makes it easier to install Klipper on a
Beaglebone board that uses a Replicape.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add support for reading analog values via the standard Linux IIO
interface. This can be used on Replicape boards to sample analog
input pins.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add support for sending SPI messages to devices via the standard Linux
SPI interface. This can be used to configure the shift registers on
Replicape boards.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add support for controlling pca9685 PWM drivers using the standard
Linux I2C interface. The pca9685 device is found on Replicape boards.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add support for compiling the Klipper micro-controller code as a
real-time process capable of running on standard Linux systems.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add initial support for controlling multiple independent
micro-controllers from a single Klippy host instance. Add basic
support for synchronizing the clocks of the additional mcus to the
main mcu's clock.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Don't directly access any of the mcu class variables externally from
the class. Add wrapper functions for those external callers that need
access to some internal state.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Kevin O'Connor