code_value() is float but in some cases we can save memory when the expected output is only 1 or 2 bytes.
Changes save 182 bytes of flash memory on my end.
Unfortunately this increases flash usages by 212 bytes (same usage as in current release) It seems it is most memory effcient to use int16_t (int). int8_t requires more memory.
Partially revert previous change: cancelling a single loop would often
advance the gcode stream to the next wait-for loop if executed at the
beginning of an SD print, implicitly turning off the flag again.
Cancel the loop directly in UnconditionalStop() which stops the command
queue as well in an atomic way, handling this correctly.
Remove most of the duplicated code inside temp_runaway_stop(),
making it identical to the other temperature handlers.
Move the lower-level functions required to stop the entirety of the
machine into UnconditionalStop(). Reuse this function inside
lcd_print_stop().
Set the LCD alert message before calling Stop(), as done in other safety
handlers, so that the error is visible while the printer is stopping.
This also avoids other temporary status messages to appear before
the real issue is shown and/or STEALING the first CRITICAL alert
level before we do.
- Move D23 into it's own function inside Dcodes
- Correctly include a break in the switch statement
- Show the dumper status (enabled/disabled) after toggling
- Allow to generate an immediate dump via g-code using D23 E for
symmetry with D20 E
This avoids the "busy" output interleaving with regular output in very
rare scenarios.
We should focus in finding which calls are not using manage_inactivity()
properly instead of working it around.
Code running in the temperature ISR needs to be fully reentrant, which
is hard to track down.
Move autoreporting to the main processing loop. This can make the
autoreporting slower or pause at times, but removes the reentrant
restriction, which allows us to use printf_P.
The longpress function is currently called within the temperature ISR,
which is bogus. Calling the longpress function at the wrong moment
can corrupt the menu buffers.
Move the call to the main loop by changing the logic slightly:
- still sample the lcd buttons inside the temperature ISR, which keeps
scrollong/pressing responsive, but...
- set a flag to indicate that longpress has been triggered instead of
calling the function directly
- call the function on the next manage_inactivity run
Combined with #3180 this removes _most_ unsafe operations out of the ISR
which can happen during a normal run (max/mintemp warnings are still an
exception).
Instead of having to guess the PC where the SP was sampled, always take
both. This allows "seamless" stack decoding for both serial and xflash
dumps, since we don't have to guess which function generated the dump.
Make the core functions (doing the sampling) be ``noinline`` as well,
so that they always have valid frame.
Save SP which is closest to the crash location, which simplifies
debugging. For serial_dump, write SP just before the dump.
For xfdump, save SP in the dump header.
This makes xfdump_dump and xfdump_full_dump_and_reset() equivalent for
stack debugging.
Now that the stack_error function is truly minimal,
we can check for stack errors much more frequently.
Also move away stack_error from ultralcd to Marlin_main.
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.
When XFLASH is not available, allow users to request _online_ crash
dumps by using D23 (since these require active user cooperation).
Once enabled, instead of just rebooting, dump memory directly to
the serial.
As similarly done with EMERGENCY_DUMP, we have two features that can be
enabled:
EMERGENCY_SERIAL_DUMP: enables dumping on crash after being requested
MENU_SERIAL_DUMP: allow triggering the same manually through the support
menu.
As suggested by @3d-gussner, announce to the host that a dump is
available for retrieval using an action "dump_available".
Any kind of dump is announced (even if manually triggered).
To avoid reading from xflash twice, remove some duplication and return
the crash reason directly in xfdump_check_state().
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.
This requires expanding the dcode_core address type to 32bit type,
thus enlarges the D2/D3 implementation as a result.
Still allow to save all the original space if D6 is disabled, for now.
Farmers want to abuse a bug from the previous firmware releases
- they need to see the filename on the status screen instead of "Wait for user..."
So we won't update the message in farm mode...
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>
gcode_M600_filament_change_z_shift is almost useless, since it performs
what is already been done internally by filament_unload().
However it *does* cause the carriage to raise earlier during unload
compared to making the user wait after "press for unload".
Change it so the calculated Z height matches MIN_Z_FOR_SWAP.
This change restores the minimum extruder height for filament purge
during M600 from the current 50mm back to 27mm from FW 3.9.
We do this by introducing a new option for unload_filament() to indicate
that the unload is part of an automatic swap, and in such cases avoid
raising more than absolutely necessary (this will _also_ come in handy
to avoid the extra purge in PR #2318 during M600).
A new define MIN_Z_FOR_SWAP is introduced for this purpose.
MIN_Z_FOR_UNLOAD is still used for manual lcd unload and for M702 and
hasn't been changed.
mesh_bed_leveling_flag and homing_flag should be set only when the
planner is empty as a consequence of #3100, since any operation executed
*while* the mbl/homing flag is set is considered part of the compound
instruction that generated it (G80, G28, G30, G76).
Failure in doing so can result in instructions just prior being lost,
since they're incorrectly discarded (assumed to be redone).
G1 ; lost ..
G80 ; .. if PP happens here
Fix cmd overflow introduced in 186ce0f.
With a precision of %f being .6 and assuming a maximum (theoretical)
acceleration of 99999 we need 47 bytes including terminating byte.
Round it to 48
This is handled in the same way crash detection is handled: homing/mbl
invalidates saved_target _and_ current position.
Fixes PP recovery during MBL and homing.
At a higher level, crash detection will repeat the last gcode command.
Some commands such as G28 or G80 need to be repeated in full and require
special handling.
In such cases, do not store the saved target coordinate (which is fake
in such cases) and invalidate the saved position.
This fixes the last coordinate of the first G1 move after recovery.
We also avoid moving from the origin when the saved position is
invalidated, which is not strictly necessary, but saves some time.
Crash detection is handled at a higher level (which automatically
repeats the current command), however we still need to abort the current
command correctly.
Handle XY crashes by checking the planner status after st_synchronize().
No actual changes done in the function in this, besides break->return.
In G28, simply call the new function instead of using goto, making the
code more readable.
Also remove the senseless comments in G28 about command queuing (dating
back to when G80 was queued instead of being executed).
As done when initializing the printer from a cold start, we need to
clamp the starting position to software endstops before setting the
planner position since 0,0 is frequently out-of-bounds.
This avoids an useless move during recovery that can cause a crash:
- Initial X is set to be 0
- G1 performed by homing will clamp X>=0, resulting in a positive shift
- If X is already at max X (extruder being parked due to PP), this will
slam at X+, causing an immediate crash.
Attempt to workaround the M73 C0|D0 visual issue
This is an attempt to enable alternation of time to print finish and time
to color change even in the last minute of time to color change, i.e. be
able to print "0:00C".
The proposed solution leverages the capability of the current FW to read
float values from the C|D parameter. This could have the raw benefit of
being able still to alternate this time on the LCD as "0:00C" (or
"<1min") if the slicer sends a non-zero but <1 time right before the
color change.
Co-authored-by: D.R.racer <drracer@drracer.eu>
Co-authored-by: 3d-gussner <3d.gussner@gmail.com>
Further restrict babystep insertion when the lcd_update is enabled by
toggling homing_flag when probing Z (where Z shouldn't be touched
anyway as it would disrupt the measurement)
Also reset the encoder value during mesh leveling.
The code around these calls _requires_ that the steps are immediately
processed and/or added to the subsequent planner moves.
The only part that doesn't care about immediate insertion is the
direct user-insertion though the lcd encoder.
