STM32的U盤移植注意點--重要！重要！重要！

錯誤：…\USB\STM32_USB_OTG_Driver\inc\usb_core.h(99): error: #101: 「URB_NOTREADY」 has already been declared in the current scope URB_NOTREADY, …\USB\STM32_USB_OTG_Driver\inc\usb_core.h(100): error: #101:

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