I encountered a problem while modifiying the STM32F746G-Discovery board.
I modified it like this:
- instead of the 4.3" display, I soldered a 5" display (24 bit RGB--> RGB888, 800x480) to the STM32F7 discovery board
- modified the LTDC settings to match the new display (Can there be an error?)
- set the LCD-TFT clock to 38.4 MHZ (according to the datasheet)
- used the touch controller FT5446 instead of the FT5336
- modified the driver code (it's really similar)
Everytime I touch the display, I get some a disrupted lines in the displayed image, but the touchscreen itself works completely fine. After lifting my finger off the display, the displayed image looks like it should.
See the photo I added.
Has anyone a hint for me, what could be wrong?
Thank you very much!