TSC2007: Calibration tips

Furkan Fehmi Sefiloglu

Part Number: TSC2007

Hi Team,

Can you please check and advise with following request:

When we touch the screen it gives falling interrupt but when it stops pressing it generates a random signal with the longest interrupt pin 3us. the interrupt pin is unstable.

Do you have example code about calibrations or different documents.

Thanks in advance

Best Regards

Furkan Sefiloglu

over 3 years ago

0 Aaron Estrada over 3 years ago

TI__Mastermind 22950 points

Hi Furkan,

What internal pull up resistor value being set to? 90k or 50k?

I think it would also be helpful if you can provide a schematic.

Regards,

Aaron Estrada

0 Mustafa Torbali over 3 years ago in reply to Aaron Estrada

Prodigy 20 points

Hi Aoron,

This Problem is my problem. I used resistor 50k before tried pull up resistor 90k also but result is same.

Link of Schematics, https://drive.google.com/file/d/1RXsIY1_ugx9IuM14MnwhwI3ah0UlUpJ8/view?usp=sharing

0 Aaron Estrada over 3 years ago in reply to Mustafa Torbali

TI__Mastermind 22950 points

Hi Mustafa,

I have linked a application note about using the PENIRQ function here. I hope that this document helps.

Regards,

Aaron Estrada

Data converters

Data converters forum

TSC2007: Calibration tips