Home › Forums › Everything about the Baby Tricopter › F3FC Racing (baby pcb) bootloader problem

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  • 24 July, 2016 at 14:14 #31398
    Deepnine
    Participant

    Hi,
    this is my first flight controller with vcp. As always i ordered two.

    The first one behaves as expected.
    Plug in usb-> led blinking-> com port detected -> cleanflight connect -> voila works.
    Hold boot button & connect -> no led blinking -> STM Bootloader detected, no comport, cleanflight switches to DFU -> flashing works.

    Connecting normal & push flash in cleanflight app works too.

    So the second one. Same board same procedure different behavior.
    Plug in usb-> led blinking-> com port detected -> cleanflight connect -> voila works.
    Hold boot button & connect -> leds still blink like normal mode. No STM Bootlader still STM Virtual Comport.

    Hitting flash in cleanflight changes the mode to STM Bootloader but cleanflight won’t switch to DFU mode.

    In Zadig Winusb is loaded.

    Any idea? I think it is a broken board, because boot button not working.

    Jan

    24 July, 2016 at 15:19 #31405
    lauka
    Participant

    You might need to zadig the drivers for both boards separately. I have to do that for each board.

    If the boot button is not getting it to DFU mode, it’s defective.

    24 July, 2016 at 21:41 #31435
    Deepnine
    Participant

    I tried it on a fresh computer (my wife’s laptop) where no zadic and no lots of different driver are installed.
    Didn’t worked either.

    25 July, 2016 at 00:03 #31440
    GAntonjo
    Moderator

    To me it sounds like the boot button on your board number 2 is not working. The board itself is not entering boot loader, hence there is not need to check on another PC. Is the boot button correctly soldered to the F3FC Race board? Does it really connect the needed pads when pressed?

    25 July, 2016 at 00:37 #31441
    Deepnine
    Participant

    Soldering looks good.
    When i connect both pin with a wire it enters bootmode but it won’t be recognized by cleanflight.

    The board has two problems. One is the button, i don’t care.
    But it wont be recognized as dfu.

    Attachments:

    1. Mon-Jul-25-00-20-38.jpg

    2. Mon-Jul-25-00-21-56.jpg

    29 July, 2016 at 09:27 #31611
    RCExplorer – David
    Keymaster

    It’s very strange that the board isn’t recognised as in DFU mode if the boot loader is shorted.
    When shorted does only the green LED light up and no other LEDs flash when booted up?
    How is the device displayed in the device manager on the computer?

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