Firmware 3.3.1 for Original Prusa i3 MK3  

Re: Firmware 3.3.1 for Original Prusa i3 MK3

I also have the flickering screen...i opened an issue on github...here is what it looks like https://drive.google.com/open?id=1FCD4KI_knWb5RYr5cKG9GhpJK-c9VO19 ( @4-5sec ).

However i noticed a constant interval between the flickers...10-11seconds.. so it is definitely firmware...

I got mine as a kit last thursday...

Another issue is that plastic is always squished on the left than on the right.... got a bed replacement , new rods, new bearings, new carriage... with the new carriage is better...but the effect is the same... so i am starting to suspect software too since i am pretty sure hardware is OK...

Re: Firmware 3.3.1 for Original Prusa i3 MK3

new version of firmware 3.3.1 is out! This is a final version recommended to all MK3 and MK2.5 owners 😉

This firmware is already quite old, I wonder why this thread is still sticky?

Re: Firmware 3.3.1 for Original Prusa i3 MK3

Got my PRUSA i3 end of November, and am worried flashing firmware upgrade will screw something up. It clearly messed things up for others. My printer is working perfectly. Why should I upgrade the firmware?

Re: Firmware 3.3.1 for Original Prusa i3 MK3

There are 3700 words in the changelog since 3.3.1, read it and decide if any of the new features would be beneficial/make your printer safer.

https://github.com/prusa3d/Prusa-Firmware/releases

Re: Firmware 3.3.1 for Original Prusa i3 MK3

Thanks David.

Re: Firmware 3.3.1 for Original Prusa i3 MK3

Just flashed the firmware now is making a constant whine.

Found out I had selected the wrong file.. had assumed the first link was the one I had wanted.

Re: Firmware 3.3.1 for Original Prusa i3 MK3

Hi there!

Please, I need some help in order to compile the Firmware 3.3.1 using Arduino 1.8.5.
I tried to follow all the instructions found in https://github.com/prusa3d/Prusa-Firmware , but I'm still getting compiling errors before making any changes to the original firmware.

The error messages show up like this:
---------------------------------------------------------------------------------------------------------------------------------------
Archiving built core (caching) in: C:\Users\4TM\AppData\Local\Temp\arduino_cache_331160\core\core_rambo_avr_rambo_0c812875ac70eb4a9b385d8fb077f54c.a
sketch\Marlin_main.cpp: In function 'gcode_M45.constprop':

Marlin_main.cpp:3088: error: unrecognizable insn:

}

^

(insn 796 795 797 28 (set (reg:QI 950)

(subreg:QI (mem/v/c:SI (plus:HI (reg/f:HI 949)

(const_int 8 [0x8])) [6 count_position+8 S4 A8]) 3)) sketch\xyzcal.cpp:773 -1

(nil))

sketch\Marlin_main.cpp:3088:1: internal compiler error: in extract_insn, at recog.c:2202

libbacktrace could not find executable to open

Please submit a full bug report,

with preprocessed source if appropriate.

See < http://gcc.gnu.org/bugs.html > for instructions.

lto-wrapper: C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-gcc returned 1 exit status

c:/program files (x86)/arduino/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ld.exe: error: lto-wrapper failed

collect2.exe: error: ld returned 1 exit status

exit status 1
unrecognizable insn:
---------------------------------------------------------------------------------------------------------------------------

I don't know what to do in order to compile the firmware without errors. The only thing I couldn't check was the C/C++ compiler (GCC) version.

I did all other changes and checks before my last try to compile the firmware:
- download and install Arduion 1.8.5.
- add the RAMBo board following the instructions.
- modify platform.txt to enable float printf support.
- copy and rename the variant "1_75mm_MK3-EINSy10a-E3Dv6full.h" to "Configuration_prusa.h" into the "Firmware/" directory.
- set LANG_MODE to 0 in file "config.h".
- open "Firmware.ino" in Arduion 1.8.5.
- select the board "RAMBo".
- execute "Verify" and getting always the error message showed above.

I will appreciate any help to make it run. Thank you!

Re: Firmware 3.3.1 for Original Prusa i3 MK3

Hi again!

I finally got a way to check my C/C++ compiler (GCC) version... it seems to be 4.9.2.
Could it be the main problem? You point in https://github.com/prusa3d/Prusa-Firmware that should be 4.8.1.

I got that info locating the file "builtin_tools_versions.txt" in the folder "Arduino/hardware/tools/avr/" but I have not a clue regarding how to change its version to the 4.8.1 recommended.

Please help me with all these. Thank you!

Re: Firmware 3.3.1 for Original Prusa i3 MK3

Hello there!

Sorry for disturbing you all, I finally saw this Firmware version was very old and downloaded the final 3.6.0 version.
I could open it with Arduino 1.8.5 and Verify/Compile without problems, so I will be able to try my own changes at last.

Thank you!

Re: Firmware 3.3.1 for Original Prusa i3 MK3

Hello there!

Sorry for disturbing you all, I finally saw this Firmware version was very old and downloaded the final 3.6.0 version.
I could open it with Arduino 1.8.5 and Verify/Compile without problems, so I will be able to try my own changes at last.

Thank you!

I was wondering why anyone was caring about such an old version of FW, but figured you had your reasons. I guess not. 😆
BTW, there is a RC1 release of 3.7.0 available on github. You may also want to try your changes on that as well.