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embeme
2018-02-25, 15:29
Hi,

I'm in front of a strange behavior:

My system RaspBerry PI 3 (with piCoreplayer 3.22) & HifiBerry AMP+ & 3," Waveshare touchscreen.

If the LIRC modul in TAB 'Tweaks' on the webinterface of picoreplayer isn't active the touchscreen run very well.

If I install the LIRC-Module in TAB 'Tweaks', and after reboot, the IR comands are recognized .
As soon as I activate the LIRC, the touch function doesn't work anymore.
The IR-Receiver is connected on GPIO 26.

Any idee what could be the why it's not running ?

24617


Embeme

paul-
2018-02-25, 15:46
Which screen?

Take a look at your screen documentation.....if it is this one, then it uses GPIO 26. https://www.waveshare.com/product/mini-pc/raspberry-pi/displays/3.5inch-rpi-lcd-a.htm

Before you reassign, you need to look at the hifiberry docs too, as it does use GPIO too. https://www.hifiberry.com/build/documentation/gpio-usage-of-hifiberry-boards/

embeme
2018-02-25, 20:00
Which screen?

Take a look at your screen documentation.....if it is this one, then it uses GPIO 26. https://www.waveshare.com/product/mini-pc/raspberry-pi/displays/3.5inch-rpi-lcd-a.htm

Before you reassign, you need to look at the hifiberry docs too, as it does use GPIO too. https://www.hifiberry.com/build/documentation/gpio-usage-of-hifiberry-boards/

Hi Paul,

thanks for the hint, but I've take account of that.

The display isn't connected on this area (see Picture)
Strangely, the documentation contradicts my hardware: The area is not connected at all. The connector of the display is shorter than that of the RaspBerry.


And the used HifiBerry AMP+ don't use GPIO 26

Embeme
2461824619

paul-
2018-02-25, 20:50
Are you changing the lirc setup to use GPIO26?

It defaults to GPIO 25.

embeme
2018-02-26, 04:25
Are you changing the lirc setup to use GPIO26?

It defaults to GPIO 25.

Paul,

Yes, GPIO26 was defined as receiver PIN.

But as I said before, the IR reception works. As soon as I activate LIRC, the touch function on the display doesn't work anymore.
I have no idea what the is connection beetween

Embeme