Use an unversioned root to store dependencies, so that they can be cached more easily.
Do not re-download archives if the build environment has already been set up.
Attempt to cache dependencies with the travis cache. This avoids
redownloading avr-gcc for each stage of the pipeline.
This /might/ improve the download failures we're seeing recently,
although the travis cache is also networked.
The printer shouldn't continue endlessly asking for a version if an old MMU is detected.
Also if the protocol is supposed to be turned off, it
shouldn't be sending S0 queries.
In M600 and M702, the Z-lift is taken care of outside this function
so it makes no sense to have a Z-lift within unload_filament()
Only exception to this is in the wizard, there I moved the Z-lift to
happen before we start heating the nozzle.
Change in memory:
Flash: -12 bytes
SRAM: 0 bytes
Ensure that fan checks are reset and use the new speed at each step of
the calibration.
This also gives extra time to the fan to ramp-up from a cold start,
when a fancheck could previously start right *after* the speed change.
Should fix#3791
Since M310 cannot change the heaters, allowing M310 S0 (and changing
parameters) allows to recover a usb-controlled printer which has been
locked-out due to bad model settings.
This prevents the ability to run gcode from the SD card.
In a thermal error with faulty values, and without serial access, this
is the only way to process an M310 instruction and recover.
- Correctly sequence the enqueued commands in order to check for the
real calibration result.
- Perform autocalibration with self-check enabled.
- Only save/continue the wizard if autocalibration succeeds.
- Ensures repeated autotune attempts with self-check can't succeed due
to different starting conditions.
- Allows for a simpler workflow during selftest and wizard if autotune
fails.
Provide average calibrated values for all fan levels for MK3/MK3S
variants and enable the model by default.
This ensures the calibration step is not skipped unless explicitly
disabled.
Force-clear fan values during autotune to restore the previous
calibration behavior, as fan resistance levels can be too big and
prevent the autotune-with-selfcheck to fail.