The old implementation would fail if the message was in progmem at address 0xffff or 0x0000 (both unlikely). It would also fail if the eeprom was initialized to some other random value, which could have been dangerous when displayed as a full screen message.
On printers without the MMU no error screen should occur and no attempts of communication with the MMU should be performed -> EEPROM_MMU_ENABLED should default to 0.
PFW-1418
- Move calibration status/declarations to util.h
- Allows to query the status of each step independently without assuming
any order
- Allows to extend the calibration with new steps transparently
If during a paused print, the preheat is canceled, keep the bed target temperature
Display bed temperatures only if bed is also heated
Remove not needed variables nTargetOld and nTargetBedOld from the mFilamentItem function
Define new Setting "HeatBedOnLoad" [Yes/No]
This currently bypasses the ConfigurationStore, which doesn't fit the
malin model nicely.
temp_model is using it's own private copy directly.
But maybe we should change this in the future.
There is a potential for 2*8 bytes of extra sparse eeprom space, plus a
few bytes saved if we remove the update calls, so add a notice that
these values are currently only written-to, but never actually used.
Rename EEPROM_CRASH_ACKNOWLEDGED to EEPROM_FW_CRASH_FLAG.
Use EEPROM_FW_CRASH_FLAG to always set the last crash reason, which
simplifies handling between the online/offline variants.
Make stack_error safe, by setting the flag and restarting immediately,
so that the error can be shown after restart.
If EMERGENCY_DUMP is defined, crash and dump using the new xflash dump
functionality instead of just continuing with an error message.
When an emergency crash is stored, the first restart after a crash
displays a message that debug data is available and to contact support
to submit the crash for analysis.
Scale extruder motor current linearly with speed.
49% less heating when running at low speed and standstill, 4% more torque at maximum extrusion rate (15mm^3/s), 15% more torque in high speed movements (un/retractions).
StealthChop mode is used for low speeds (below 900mm/min)
spreadCycle is used above. Transition speed is well above maximum extrusion rate of 15mm^3/s (275mm/min) so mode transition is not expected to be visible on printed surface.
StealthChop is expected to improve printed surface quality (less artifacts).
Warning you can burn extruder motor if it is not the same impedance as original Prusa i3 Extruder stepper motor. There is no current feedback in low speed so lower impedance motor can be burned by over current.
Even there is no direct current feedback, there is no risk for original motor thermal runaway, as motor resistance increases with temperature, current decreases.
Standstill peak phase current is expected to be 500 mA and linearly increase with speed to 970 mA at 900mm/min where spreadCycle constant current regulation takes over and keeps peak current at 805 mA to maximum speed possible.
As motor heating increases with current squared, lowering low speed current from 700mA to 500mA decreases heating 49% in thate mode, where motor spends most of the time.
Enable E-motor cool mode in farm mode only (and experimental menu) - the experimental menu is visible AND the EEPROM_ECOOL variable has a value of the universal answer to all problems of the universe - i.e. two conditions must be met at the start of the FW to enable the E-cool mode. If the user enables the experimental menu, sets the E-cool mode and disables the menu afterwards, on the next start of the FW the E-cool mode will be DISABLED. This is still subject to discussion how much obscure (security through obscurity) we'd like this option to have .
Additional stuff:
* Add serial debug msg to verify if E-cool mode is on
* Avoid access to E-cool mode switch on machines without TMC2130
* Do not allow only M907 E in case of E-cool mode+warn the user on the serial line that the command was skipped
Co-authored-by: D.R.racer <drracer@drracer.eu>
3d-gussner
Alex Voinea
Guðni Már Gilbert
Yuri D'Elia
D.R.racer
Panayiotis-git
Tomáš Jozífek
VintagePC
DRracer
metacollin
Panayiotis-git
Marek Bel