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[ARM] STM32F107 USB Device not recognized

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chiart

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Hi All,

Currently i'm building the cicuit to test the connectivity of the STM32F107VCT6, however currently my problem is, the PC will display 'USB not recognized' whenever plugged in. Using the MikroProg, the chip can be programmed and reprogrammed with no issue. The only problem is the USB not recognized. As seen in the photo attached, I've connected the Vbus to PA9, the D+ to PA12 and the D- to the PA11 with a series resistor attached, but for some reason, it cannot be recognized.

Any help will be much appreciated.

Thank you
 

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  • STM32F107 USB-page-001.jpg
    STM32F107 USB-page-001.jpg
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