Problem when using with Adafruit ILI9341 (and ILI9341_t3) TFT library

[Hannes0O0]

Description

When I use this library in combination with the Adafruit_ILI9341.h library or the ILI9341_t3.h library, the display shows either white, or a combination of blue and black (with the Adafruit library). Everything related to touch works fine. If I upload the graphic test from Adafruit first and reupload the Sketch from before again, everything suddenly works just fine. When I power off and on the Teensy after that the TFT stops working.

Steps To Reproduce Problem

1. Connect the TFT to a Teensy 4.1.
2. Upload the Sketch.

Hardware & Software

Board: Teensy 4.1
Shields / modules used: 2.8 Inch SPI TFT
Arduino IDE version: 1.8.13
Teensyduino version (if using Teensy): 1.53
Operating system & version: Windows 10 home 64bit

Arduino Sketch

#include <Arduino.h>
#include "SPI.h"
#include "XPT2046_Touchscreen.h"
#include "Adafruit_GFX.h"
#include "Adafruit_ILI9341.h"

//Pin definitions
#define TFT_MOSI 11
#define TFT_MISO 12
#define TFT_CLK 13
#define TFT_DP_CS 10
#define TFT_DP_RST 8
#define TFT_DP_DC 9
#define TFT_TS_CS 7
#define TFT_TS_IRQ 6

Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_DP_CS, TFT_DP_DC, TFT_MOSI, TFT_CLK, TFT_DP_RST, TFT_MISO);
XPT2046_Touchscreen ts(TFT_TS_CS);

void setup() {
pinMode(TFT_DP_CS, OUTPUT);
pinMode(TFT_TS_CS, OUTPUT);
digitalWrite(TFT_DP_CS, HIGH);
digitalWrite(TFT_TS_CS, HIGH);
Serial.begin(38400);
//TFT init
tft.begin();
tft.setRotation(2);
//Tochscreen init
ts.begin();
ts.setRotation(2);
tft.fillScreen(0x0A0F);
}

void loop() {
if (ts.touched()) {
TS_Point p = ts.getPoint();
Serial.print("Pressure = ");
Serial.print(p.z);
Serial.print(", x = ");
Serial.print(p.x);
Serial.print(", y = ");
Serial.print(p.y);
delay(30);
Serial.println();
}
}
//This Sketch would normally change the color of the screen and Serial.print the Tochposition

//------------------------------------------------------------------------------------------------------------------------------------

//When I remove the code for the touch functionality it works as expected (=changes the coler of the screen):

#include "SPI.h"
#include "Adafruit_GFX.h"
#include "Adafruit_ILI9341.h"

//Pin definitions
#define TFT_MOSI 11
#define TFT_MISO 12
#define TFT_CLK 13
#define TFT_DP_CS 10
#define TFT_DP_RST 8
#define TFT_DP_DC 9

Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_DP_CS, TFT_DP_DC, TFT_MOSI, TFT_CLK, TFT_DP_RST, TFT_MISO);

void setup() {
pinMode(TFT_DP_CS, OUTPUT);
pinMode(TFT_TS_CS, OUTPUT);
digitalWrite(TFT_DP_CS, HIGH);
digitalWrite(TFT_TS_CS, HIGH);
Serial.begin(38400);
//TFT init
tft.begin();
tft.setRotation(2);
tft.fillScreen(0x0A0F);
}

void loop() {
}