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Confused display when operating the touch screen on Renegade




I use the spi0 of Renegade to drive a 3.5-inch touchscreen, both the lcd and touchscreen use the same spi0, but different "CS". If I don't touch, the display is ok. But when touch the screen, the display gets messed up, looking like the colors are misaligned starting from an offset value. Anybody has experience of it ? Thank you!

(The first and second images get messed up as I touch on screen, the third image is ok as I don't touch.)




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