1 Topic by satman49

  • satman49
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Topic: Power supply during firmware upload

I am reading about uploading the firmware on:

http://www.solidoodle.com/how-to-2/how- … -firmware/ and

http://www.soliwiki.com/Updating_Solidoodle_Firmware


The first says to just have the usb only plugged in but the second doesn't say that.It does say:!!!!WARNING!!! Maintain a stable power connection, a UPS (Universal Power Supply) is best anytime you flash firmware to ensure stable power


Which is correct? LOL I dont want to make my SD3 a boat anchor.

SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.

2 Reply by lawsy

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Re: Power supply during firmware upload

The printer electronics are essentially Arduino boards. This means you don't need the external 12V usually required by the printer.

If you think about it, most Arduino projects will only have the USB power when being flashed.

lawsy's Website

3 Reply by satman49

  • satman49
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Re: Power supply during firmware upload

thanks , should have realized that as I using an arduino uno in a camera slider project and uploading test sketches without
the 12v plugged in.

SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.

4 Reply by satman49

  • satman49
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Re: Power supply during firmware upload

I am getting this error when I try to upload,   avrdude:stk500_getsync() :not in sync resp=0x89. Anybody know what that means and how to correct it? Ii compiles without error tho.I am assuming its sync problem from what the error says.

SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.

5 Reply by adrian

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Re: Power supply during firmware upload

check your PM's

6 Reply by satman49

  • satman49
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Re: Power supply during firmware upload

thanks, reading it now.

SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.

7 Reply by 3dcad

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Re: Power supply during firmware upload

satman49 wrote:

I am getting this error when I try to upload,   avrdude:stk500_getsync() :not in sync resp=0x89. Anybody know what that means and how to correct it? Ii compiles without error tho.I am assuming its sync problem from what the error says.


I have the same error, any suggestions?

thanks

8 Reply by tealvince

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Re: Power supply during firmware upload

3dcad wrote:
satman49 wrote:

I am getting this error when I try to upload,   avrdude:stk500_getsync() :not in sync resp=0x89. Anybody know what that means and how to correct it? Ii compiles without error tho.I am assuming its sync problem from what the error says.

I have the same error, any suggestions?

thanks

I had the same problem yesterday, but with resp=0x00.  I understand this error can be caused by almost any communications problem, but for me, I had to revert to installing manually with an older version of avrdude:

http://www.soliforum.com/topic/5344/syn … rdude-511/

Other suggestions I found online didn't work for me, but might work for you:

- set the default baud rate of the port to 38400 (in system device hardware settings on Windows)
- make sure auto-reset jumper is present (next to pin 9 of chip in middle of board)
- manually press reset button just when compile completes
- (re)install the usb serial drivers

Personally, I found it incredibly frustrating that the Arduino IDE recompiles the code every time you upload.  Running avrdude from the command line was a lot faster way to try out different settings and setups.