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Did you managed to make a smaller firmware? I am also experiencing sketch-size problems with LCD support for Sanguinololu ATmega 644P. Would like to know what is possible. When it's to hard maybe it's an idea to just use a cheap tablet, I've heard there's a good app to send gcode and control reprap..
by
jordoo
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Firmware - mainstream and related support
ITS WORKING!!!!!!!!!
Tried a lot of combinations and every option I found on google.
only this worked for me;
Use arduino 0023 (and not any other version)
Use Sanguino libary 0023r3 (and not 0023r4)
Change bit per sec in device manager to 38400
Change bit rate also at arduino/hardware/sanguino/boards.txt in the line; atmega644.upload.speed=38400 (38400 instead of 57600)
Only this combination
by
jordoo
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General
I've also tried Sprinter firmware, only changed the motherboard line to '62' for sanguinolu. Same problem: avrdude: stk500_getsync(): not in sync: resp=0xcf
by
jordoo
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General
True first problem: x and y going wrong directions because going home is not the direction where the endstop is. They said it was tested as going to the right direction so little bit strange. But there are other ways to fix this (changing wires?) But main reason why I want to change firmware is to calibrate by myself (and change directions) and add LCD control (and that's why I choose Marlin firm
by
jordoo
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General
Good question, I assumed there should be a bootloader because of the firmware..
What hint's can I check?
- The led on the sanguino board lights up constantly when connecting a USB cable.
- (there is a firmware on the board)
- ..?
by
jordoo
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General
Ok I think for question 1, the jumper is installed. I think there is nothing like a jumper holder and a jumper it self, so this should be the jumper.
What's next? And can I assume what I asked in question 2?
by
jordoo
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General
Okay thanks!
Question 1: I had a look at the board and there is something over there. But it looks to me like it's only half of the jumper. Is it possible this is only the holder of the jumper and not the jumper itself (see attached picture)? If this is, can I make the jumper by a bended copper wire and just stick it in there?
I also tried just before uploading pressing the reset button at t
by
jordoo
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General
Hi everyone, I'm new on the RepRap Forum.
I bought a pre-build reprap Air 2 and I'm having problems with uploading firmware to the motherboard. I tried a lot but nothing really worked.
Want to change/upload new firmware
The printer came with a sanguinololu 1.3a board (ATmega 644P) and a firmware was already pre-loaded. I can move all of the axes with Pronterface. Unfortunately, the X and Y axi
by
jordoo
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General