MPC574x SDK 0.9.0 usb_cdc_lwip demo usb did not work on devkit

[lognight]

Hello NXP,

 I imported the usb_cdc_lwip_mpc5748g demo from SDK v0.9.0, and downloded the code to devkit hardware, but the program can not run. When suspended the program, I found the program stoped in usb stack initialize routine, the detials show as below pic. It seems cannot reset usb successfully.

I'm fresh on USB. I don't know what's wrong with it. would you give me some help?  Thanks

[martin_kovar]

Hello,

have you correctly connect CDC-ECM compatible device to MPC5748G Devkit board? Please check the prerequisites to the example in SDK documentation.

Regards,

Martin