Radxa Zero 3W Resistive TouchScreen XPT2046

[maximilian fletkar]

Hello

I have this display http://www.lcdwiki.com/4inch_HDMI_Display-C  and  touchscreen doesn't work.

I write dts file but apparently he is not a privelege and the touchscreen did not work.

Can  point out my mistakes when writing dts?

 

rockchip-ads7846.dts

Edited October 8, 2024 by maximilian fletkar

[robertoj]

Document everything in your DTS, including how you calculate the GPIO numbers and the describe the physical wiring

 

Make sure you use armbian-add-overlay correctly, and armbianEnv.txt doesn't include previous dtbo experiments.

 

Send a schematic of your touch chip pins and your ARM board

 

This is a reference on how it is done with an Allwinner H3 and spi-gpio.

https://forum.armbian.com/topic/27457-connecting-banana-pi-m2-zero-with-ili9341-display-over-spi-on-latest-armbian-image/?do=findComment&comment=202734

 

Try changing the active-high/active low/edge up/edge down parameters