Constant errors

A Former User

I did not have the jumpper on, still did the reset and erase again and no luck

dc42

Looks like the MCU is not coming out of Erase mode. Try the following:

Put the Erase jumper on
Press the Reset button on the Duet
Remove the jumper
Press Reset again
Reconnect Bossa (you can normally just click on the COM port dropdown and select the same COM port again)
Ensure that Erase All, Lock and Boot to Flash are checked (but not the other boxes)
Press Write
Press Verify

The Write operation should display a progress bar and take 15 seconds or longer.

A Former User

@dc42
Does not work

dc42

Are you using VIN power to the Duet, USB power, or powering it some other way?

A Former User

BOSSA just wont write.

And USB power

dc42

USB power alone may be insufficient. Please read the notes on avoiding USB ground loop problems at https://duet3d.dozuki.com/Wiki/USB_ground_loops and try again with VIN power. I assume that you have the 5V regulator on the Duet enabled.

A Former User

Running on VIN and a laptop results in the same problem.

dc42

Make sure that the PC and the Duet PSU are plugged into the same power distribution block then. Usually it's not a problem if they are not, but occasionally a home has faulty mains wiring.

A Former User

Not gonna risk it, unless duet waranty cowers a 5000€ pc.

A Former User

What i have tried so far.
USB power only: Does not work
USB power only nothing connected exept the USB: Does not work
VIN and USB via a laptop: Does not work

Used the jumppers and reset multiple times.

Nothing works just like i expected.

A Former User

Found the real problem, its a bad solder joint in the sd card slot, multimeter temp probe reads 67C.

A Former User

@Torppa said in Constant errors:

Found the real problem, its a bad soder joint in the sd card slot, multimeter temp probe reads 67C.

What does "soder" mean ?

A Former User

@CaLviNx

https://dictionary.cambridge.org/dictionary/english/nitpicker

Thanks now the world is saved.

English is not my first nor my second language.