TSC2014: TSC2014 issue

Jenny Lu69

Part Number: TSC2014
Other Parts Discussed in Thread: TSC2004

Hi engineers，

There is a question to confirm, TSC2014 touch function in Linux system can be used normally is our board. But use cat/proc/interrupts to see interrupt information,no matter touch the screen or not, the interruption of the touch screen has been counting, For example, touch the screen once, in a few seconds it has triggered dozens of interruptions, whether this phenomenon is normal or not?

Thank you in advance.

Best Regards,

Jenny

over 6 years ago

0 Jenny Lu69 over 6 years ago

Expert 1810 points

This is the screenshot.

0 José Luis over 6 years ago in reply to Jenny Lu69

TI__Mastermind 20085 points

Hi Jenny,

I think that It is a driver issue. I could provide you a Linux driver for this device.
Please let me know your comments.

Best Regards
José Luis Figueroa
Applications Engineer

0 HUA JIN over 6 years ago in reply to José Luis

Prodigy 20 points

Hi ，

Thanks for your reply.

You means IRQ will not count if not touch the panel,right? Where could I download the linux driver? Is it the same with TSC2004?

0 José Luis over 6 years ago in reply to HUA JIN

TI__Mastermind 20085 points

Hi HUA JIN,

Do you mean PENIRQ? if so, when you touch the panel the PENIRQ output is forced low.
Yes, it is. TSC2014 and TSC2004 share the same Linux driver. You can get the code in the next link:
elixir.free-electrons.com/.../tsc2004.c

Best Regards
José Luis Figueroa
Applications Engineer

0 HUA JIN over 6 years ago in reply to José Luis

Prodigy 20 points

Hi，

Might be the BIOS issue of X86 platform . Thanks a lot !

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TSC2014: TSC2014 issue