Devo 10 buttons and trims beep but do not function

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27 Jan 2019 09:00 - 27 Jan 2019 09:01 #72572 by Seven5555
My Devo 10 is not working. It turns on but all of the buttons and trims beep but do not have any effect on the screen. IE, no menu etc. The screen shows the percentages for the stick actions buit that's it. Anyone know how I might diagnose this or have a fix for this? I really need to get this working and I'm stuck.

Thanks in advance
Last edit: 27 Jan 2019 09:01 by Seven5555.

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27 Jan 2019 20:08 - 27 Jan 2019 20:17 #72576 by Seven5555
I found a short on 2 of the pins on the stm32f103 vtc6 chip. Could someone please tell me if they are supposed to be shorted? Could this be the problem?

I'm not sure the data sheet i found is correct but this one shows them being pins 19 VSSA and 20 VREF

Maybe someone has a Devo 10 open could take a peek and tell me if they are shorted on thiers. They are at the top left of the tx.

Thank you
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Last edit: 27 Jan 2019 20:17 by Seven5555.

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28 Jan 2019 16:06 #72585 by hexfet
Pin 20 is VREF- so it makes sense to be connected to Vss.

Will the tx boot into DFU or USB modes (EXT or ENT pressed at power-on)? That would indicate if those two switches are working or not.

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28 Jan 2019 16:13 #72587 by vlad_vy
Pins 19 and 20 are shorted on other Devo10 images.

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30 Jan 2019 15:41 #72624 by Seven5555
I was able get it into dfu mode once and I updated the firmware to a nightly but the problem still remains and I haven't been able to to it again.

Thank you very much for the help

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30 Jan 2019 15:43 #72625 by Seven5555
I see that now thank you and sorry I didn't find that until later.

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