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jorimax avatar jorimax commented on July 30, 2024 1

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andymac4182 avatar andymac4182 commented on July 30, 2024

Hi @jorimax,
This repo is for the chrome app. https://chrome.google.com/webstore/detail/blheli-configurator/mejfjggmbnocnfibbibmoogocnjbcjnk

Have you given that a go?

Cheers,
Andrew

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jorimax avatar jorimax commented on July 30, 2024

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jorimax avatar jorimax commented on July 30, 2024

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andymac4182 avatar andymac4182 commented on July 30, 2024

Just confirming you have the ESCs powered up from the battery when you are attempting to connect?

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DieHertz avatar DieHertz commented on July 30, 2024

Looks like something wrong with passthrough or serial connection, I'll check my SPRF3 on BF3.1.5 tomorrow.

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jorimax avatar jorimax commented on July 30, 2024

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jorimax avatar jorimax commented on July 30, 2024

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jorimax avatar jorimax commented on July 30, 2024

Hi Andrew,

Thanks a lot for your time!

I forgot to mention that the quad is actually flying, I managed to configure the ESC's after the build.
One thing I noticed is that one ground wire from a ESC is "almost" touching the outer case of the USB port. Could this be the problem?

The strange thing is that I can connect just fine and use BetaFlight etc... so the USB port should be ok. But when I connect the battery it goes wrong.

Thanks a lot for your help!

Kr,
Joep

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jorimax avatar jorimax commented on July 30, 2024

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DieHertz avatar DieHertz commented on July 30, 2024

Checked SPRF3 on 3.1.5, passthrough and BFC work for me.
Your issue looks very similar to what happens when USB UART is shared with some other function as OSD or SPORT telemetry. Any chance you have something connected to UART1?

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jorimax avatar jorimax commented on July 30, 2024

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DieHertz avatar DieHertz commented on July 30, 2024

MSP should be enabled on UART1, and nothing should be connected to it, otherwise it interferes with normal USB operation, that usually happens when you apply power (e.g. connect your battery).

Do you have a logic analyzer? You could hook it up to UART1 and see what happens when you connect the battery.

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jorimax avatar jorimax commented on July 30, 2024

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DieHertz avatar DieHertz commented on July 30, 2024

Yes, precisely! Move the OSD to UART2 and leave UART1 alone, that should fix your issue.
Other way to do it is disconnect OSD while you're working with FC on the bench, e.g. by soldering a connector on the Tx line and disconnect it physically.

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jorimax avatar jorimax commented on July 30, 2024

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DieHertz avatar DieHertz commented on July 30, 2024

Sure, all 5V outputs are equal and internally connected.
The same applies to ground.

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jorimax avatar jorimax commented on July 30, 2024

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DieHertz avatar DieHertz commented on July 30, 2024

Glad you made it.
Apologies for not pin-pointing the cause earlier. I suggest you join BetaFlight Slack Channel via https://betaflight.nz, there are lots of knowledgeable people and BF devs.

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jorimax avatar jorimax commented on July 30, 2024

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