Touchscreen Issue

Hi,

I am setting up an application using the Xylon reference design for the MicroZed + Avnet 7" touchscreen. The graphics work fine but the touchscreen is not working.

I managed to find this text in the boot sequence so it may help shed light on the issue:

tmg120_ts 0-0020: tmg120_ts: failed to read firmware version
tmg120_ts: probe of 0-0020 failed with error -5

Is anyone know what is/could be wrong and what I should do about it?

Thanks,

Tim

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0 zedhed over 10 years ago

Hi Tim,

The issue you are seeing stems from a Linux driver that was never updated for this reference design to support the newer ALI3 touch controller command set.

Since this appears to be targeted to your MicroZed, one simple option would be to connect a mouse to MicroZed USB host port in order to gain access to the pointer in order to launch demos from the icons on the home screen.

I see that your local Avnet FAE is also involved so I can work with them to we can see if there are any other options that can help get your demo working.

Regards,

-Kevin
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0 Former Member over 10 years ago in reply to zedhed

Hi, Kevin

I've also been troubled with the same issue for days. So according to what you explained, the newer ALI3 touch controller is actually not supported by even the latest Linux driver. So when is Avnet going to update the Linux driver to support the newer ALI3 touch controller? It is very important to me because my project requires that the touch screen must be supported under a Linux OS. Thanks.
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0 Former Member over 10 years ago in reply to Former Member

Hello,

Has the issue been solved? I also want to use this touch screen. Do you get new Linux driver of tms120?
thanks.
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0 Former Member over 10 years ago in reply to Former Member

Hello,

Has the issue been solved? I also want to use this touch screen. Do you get new Linux driver of tms120?
thanks.
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