usb enumaraion failed [I.MXRT1170]

Bharath_S — Thu, 02 Feb 2023 07:23:26 GMT

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

i.MX Processors中的主题 usb enumaraion failed [I.MXRT1170]