SOLVED: Waveshare touch screen not working

Hardware
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1

Hey Guys,

I’m building a second zynthian. Something very small for taking around. I have one of these waveshare screens

It connects to the Pi’s GPIO pins and hdrmi, I’m wondering if there’s a display profile I can use. I’ve tried all of the waveshare 3xx ones and they don’t really work. The display only works if I use waveshare 4 or waveshare 5, but I can’t get the touch screen to work.

Is there a way to map the gpio pins to the touchscreen in the zynthian config or is this something I need to configure on the raspberry pi’s /boot/config.txt?

Thanks.

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Problem solved. I should have done a bit more reading. Waveshare provided instructions on the display settings.

hdmi_group=2hdmi_mode=87hdmi_cvt 640 480 75 6 0 0 0hdmi_drive=2dtparam=i2c_arm=ondtoverlay=waveshare-35dpi-3bdtoverlay=waveshare-35dpi-4bdtoverlay=waveshare-35dpi-5b

I also copied over the .dtbo files they provided. https://files.waveshare.com/upload/d/d0/3.5HDMI_E_DTBO.zip

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Thanks for sharing the Solution-Answer!