usb enumaraion failed [I.MXRT1170]

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usb enumaraion failed [I.MXRT1170]

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Bharath_S
Contributor I

Unable to communicate between host [i.mxrt] & device [Quectel EC200U] with USB Protocol

* We have a Custom Board [i.mxrt1170] with quectel module[EC200U] mounted on it.

* Communication b/w host[i.mxrt] & device [EC200U] using UART working fine.

* But while using USB Protocol we are unable communicate.

    -We tested externally by connecting the device[EC200U] through the PC [USB],

      tera term as the input source for AT Commands, & we got the response from                device.

* Below is the error log we are getting.

       host init done

        enumeration failed

      - host init done

        device cdc attached

        pid = 0x901

        vid = 0x2c7c

        address = 1

        cdc device attached

        data transfer error = 0, status

        set control interface error

       

 

 

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