Touch not working with Kentec Display BOOSTXL-K350QVG-S1 and EK-TM4C123GXL Launchpad.

DnThuy Vy

I am working with "grlib_demo" project using Kentec Displays BOOSTXL-K350QVG-S1 connected to a EK-TM4C123GXL Launchpad, the LCD displays correctly but only touch not woking. I don't know why touch isn't work with my EK-TM4C123GXL Launchpad?. There is have a error with "grlib_demo" project or the function touch is design really not work with EK-TM4C123GXL lauchpad?.
I have tried code in "MyWidget.txt" and "grlib_demo.c", but had the same result, touch not working. :(
I have removed resistor R10 form the launchpad.

Thank You! :)

over 10 years ago

0 Amit Ashara over 10 years ago

TI__Guru**** 244400 points

Hello Dn

Touch requires the ADC control. Can you check that it ADC is enabled, configured correctly and the routine being called via periodic interrupt?

Also check that when it is called does the value for X and Y change when it is not pressed and when it is pressed?

Regards
Amit

0 VARAD NITIN GOKHALE over 9 years ago in reply to Amit Ashara

Prodigy 140 points

Hello Amit,

I am having the same problem. I am using TIVA C series launchpad and picking up the code from grlib_demo.c from TIVAWARE - 2.1.2.111 but the touch doesn't seem to work.

I am referring to the TIVA C workbook. The workbook shows a Stellaris launchpad in the picture for demonstrating graphics library with Kentec LCD

Does this have something to do with my problem(using a TIVA C launchpad instead of a Stellaris one?)

Thanks,

Varad

0 Amit Ashara over 9 years ago in reply to VARAD NITIN GOKHALE

TI__Guru**** 244400 points

Hello Varad

No, I don;t think so. I would ask you to attach your project along with the driver files.

Regards
Amit

0 VARAD NITIN GOKHALE over 9 years ago in reply to Amit Ashara

Prodigy 140 points

;

0 Amit Ashara over 9 years ago in reply to VARAD NITIN GOKHALE

TI__Guru**** 244400 points

Hello Varad

Which booster pack are you using?

Regards
Amit

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Touch not working with Kentec Display BOOSTXL-K350QVG-S1 and EK-TM4C123GXL Launchpad.