I use Quectle-EC25 LTE/4g module i want to connect it with stm32f407 by using usb port but, the bInterfaceClass is Vendor-specific ( 0xFF ) and i can't know the usb class that i use it.
The attached file contain the Descriptors for EC25.
I use Quectle-EC25 LTE/4g module i want to connect it with stm32f407 by using usb port but, the bInterfaceClass is Vendor-specific ( 0xFF ) and i can't know the usb class that i use it.
The attached file contain the Descriptors for EC25.