maximilian fletkar Posted October 8 Posted October 8 (edited) 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 by maximilian fletkar 0 Quote
robertoj Posted October 8 Posted October 8 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 0 Quote
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