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Huawei 3G USB modem connect to STM32

Question asked by vasiliev.zhenya on Aug 15, 2016
Latest reply on Oct 19, 2016 by Clive One
Hello. I try connect USB modem to STM32F207. I'm used AT^U2DIAG=0 command for switch modem to CDC mode. But in debug i see interfeise with bInterfaceClass = 0xFF only on modem. What is the interface? How get CDC?
PC Sorry for my english