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MaaXBoard Mini HyperPixel 4.0 Square(720x720) with touch

dario.budimir@gmail.com

I have RPi HAT HyperPixel 4.0 Square(720x720) with touch and wanna make it working on MaaxBoard Mini

I have gone trough source code from https://github.com/pimoroni/hyperpixel4/tree/square-pi4

So there is few steps I need to be done

- Enable all GPIO on 40 pin header (disable I2C and SPI)
- Make hyperpixel4-init source code to initi LCD (do bitbang)
- Edit dts to disable I2C/SPI 


Now few steps that I don't quite understand is how to map parallel LCD to GPIO

Is there anyone that can help me with that part as is most challenging to me? Any help, guide or how to would be helpful 

Thanks a lot

  • Not sure I understand how you expect this to work. The Pi enables a parallel interface for such TFT screens. That parallel interface is driven by specific hardware in the SoC (GPU or similar, inside the Pi chip). The MaaxBoard Mini doesn't use a Pi BCM.. chip, it uses a NXP chip, and that will have a different GPU or display driving hardware.

    If you want to make such a display work with non-Pi hardware, you'll need to either find a driver (if it exists) for your specific hardware, or write one. The GitHub link that you refer to, doesn't contain that driver.