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STM32 USB OTG and uc20

Question asked by sohrabloo.vahid on Oct 20, 2015
Latest reply on Oct 22, 2015 by Amel N
I use stm32f429-discovery board. I want to use uc20  (GPS/GPRS) module.
uc20 has usb interface. I want to connect uc20 to stm32f429 with usb interface. I dont now how to develop driver.
also uc20 has multi interface to send and recive data. send GPS and AT Command on one usb.