imx6q Automotive boad Rev C(red color): lvds touchscreen is not work

[GaoJianzhong]

I buy the new imx6q AI board (Rev C), it is red color.

But i found that with this cpu board, touchscreen is not work.(I use the lastest BSP).

Is there anyone have already confirm the touchscreen of rev C imx6q AI cpu board?

Thank you!

[lily_zhang · Accepted solution]

Hello, Mr Gao:

There was one known hardware issue which may impact touch screen interrupt.

Some information are FYI:

Applies to CPU Cards: MCIMX6QAICPU1 and MCIMX6DLAICPU1

Defect Description

The processor never receives the LVDS touch panel interrupt. A buffer has its power pin unconnected.

Resolution

Connect interrupt buffer U1514 pin 5 to power rail P3V3_DELAYED.

[GaoJianzhong]

Thank you very much.

I had close this issue follow your resolution.

And I think it's better to update this to freescale's documents.

Many of my customers haven't know about this.

Thank you.

[david_babin]

The document is now available on Community. See SABRE-AI_Touch_Int_Bulletin_v1.pdf.

[david_babin]

We are working on the document. Thank you for your feedback.

[david_babin]

The document is now available on Community. See SABRE-AI_Touch_Int_Bulletin_v1.pdf.

[lily_zhang]

Glad to see it's helpful.

I will consult with hardware team whether this information was published into the formal document.

[david_babin]

The document is now available on Community. See SABRE-AI_Touch_Int_Bulletin_v1.pdf.

[david_babin]

The document is now available on Community. See SABRE-AI_Touch_Int_Bulletin_v1.pdf.

[david_babin]

We are working on the document. It will be released soon. I will tell the customer.