ILI9341 TFT LCD and XPT2046 Touch Screen Does not Work Simultaneously

[bonezegei]

Problem

ILI9341 TFT LCD and XPT2046 Touch Screen Does not Work Simultaneously. LCD or TOuch Screen works fine when used alone.

[bonezegei]

Answer

Possible Solution is that the SPI is running at fast speed that the XPT2046 might not run. Specially on ESP32. Try Switching the SPI Speed when calling functions from each device.

for example:
If draw function is called switch the SPI Speed that is suitable for THE LCD.
and switch it back to to lower speed when calling touchscreen operation.

60MHz on LCD
1MHz on touchScreen