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    STM32F103VET6 and CH340G

    Hi people !
    I have a problem with my PCB. I recieved it a few days ago and it is already completly presoldered. If i connect it via USB-TYPE B to my pc it is showing me nothing in device menager.... The CH340G should be visible to be able to programm it via usb....


    If i connect it via micro-usb unknown device is popping up. But that does not help me :).

    I have added the schematic. Hope someone can help me.

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    Re: STM32F103VET6 and CH340G

    It is likely you don`t have the driver installed.
    Refer to this link:

    https://www.arduined.eu/tag/ch340g/
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    Re: STM32F103VET6 and CH340G

    The driver is installed. If i connect an arduino Mega with ch340 it is showing up....



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    Re: STM32F103VET6 and CH340G

    If i connect an arduino Mega with ch340 it is showing up....
    Do you see it as a COM device ?

    Click image for larger version. 

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    Re: STM32F103VET6 and CH340G

    CH340G 3.3V bypass capacitor missing.



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  6. #6
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    Re: STM32F103VET6 and CH340G

    bypass capacitor is installed but still no function....



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