MFG Tool is not detecting / ADB also not detecting via USB

[bruno07eee]

Hi All,

In detail  about the issue : (Platform - iMx6 sabresd)

1 . USB is working for Host/Mass storage (Mouse/Pendrive) But it is not working as a device

2 . PC is not detecting the board via USB(Even device manager, PC not able to recognize the usb)

3 . Hardware lines are proper which verified by probing the USB_ID line.

4 . Board is booting properly with last flashed images.

Please let us know how we can recover from this issue(Boot from emmc only is available)

Regards,

Bruno(bruno@zumisolutions.com)

[bruno07eee]

Hi Igor,

Thanks for your quick response.

yes we have verified USB_ID is high and _VBUS line is powered(3.3volts)

Can you please suggest me that how i can proceed to rule out this issue.

Regards,

Bruno

[igorpadykov]

Hi Bruno

could you try connection with windows xp computer.

What is full processor marking, what mfg tools

version was used (link) ?

Best regards

igor

[bruno07eee]

Hi Igor,

I was using windows 7 and (We have around 6 development board)It is working with all the board except one board.

Is that fine for your question/ Still you need the mfg tool and environment details?

Note : Issue board was working fine and Issue occured after N number of reflashing the image via mfg tool

Please let me know if you need any details.

Regards,

Bruno

[igorpadykov]

Hi Bruno

if this just one board then this may be soldering issue,

one can resolder processor.

Best regards

igor

[bruno07eee]

Hi Igor,

Thanks for your update and Let me check with my hardware team for the same.

Hope i will update the root cause and the issue fixed notes here.

Regards,

Bruno

[igorpadykov]

Hi Bruno

please check with oscilloscope that USB_ID is high and

USB_H1_VBUS or USB_OTG_VBUS are powered.

Recommended to look at i.MX6 System Development User’s Guide for usb items

http://cache.freescale.com/files/32bit/doc/user_guide/IMX6DQ6SDLHDG.pdf

Best regards

igor

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