Dear Forum,

i tried to connect the new Teensy 4 with the ILI9341(DISPLAY_ILI9341_TOUCH). The LCD works fine and runs perfectly with the ILI9341_t3 Library from Paul Stoffregen. As soon as i connect the t_clk the screen turns completly white. I would like to use the touchscreen too.

Teensy 4 ILI9341
VIN VCC
GND GND
10 CS
3.3V RESET
9 DC
11 SDI(MOSI)
13 SCK
VIN with 100 ohm resistor LED
12 SDO(MISO)
SCK T_CLK
10 T_CS
11 T_DIN
12 T_DO
2 T_IRQ

I am new to microcontrollers and would be happy if someone could give me a tip on how to find a solution. Thank you really much.

Kind regards,

Jonas