loop stops when print after read on touchscreen

Projects Programming
1

I'm making a touchscreen controlled radio. Everything works fine until I want to print some information , using tft.print. The main loop stops after calling the function displayInfo() The shared pins are restored after reading the touchscreen so I can't figure out what's wrong. Anyone can tell me what I'm doing wrong ?

#include  <Adafruit_GFX.h>
#include <MCUFRIEND_kbv.h>
#include <TouchScreen.h>
#include <VMA11.h>
#include <Wire.h>

#define MINPRESSURE 200
#define MAXPRESSURE 1000

const int XP = 8, XM = A2, YP = A3, YM = 9; //320x480 ID=0x9486
const int TS_LEFT = 123, TS_RT = 908, TS_TOP = 944, TS_BOT = 91;

#define BLACK   0x0000
#define BLUE    0x001F
#define RED     0xF800
#define GREEN   0x07E0
#define CYAN    0x07FF
#define MAGENTA 0xF81F
#define YELLOW  0xFFE0
#define WHITE   0xFFFF

MCUFRIEND_kbv tft;

TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);

Adafruit_GFX_Button freq_btn, vol_btn, mute_btn, rds_btn, fup_btn, vup_btn, fdown_btn, vdown_btn;

int pixel_x, pixel_y;     //Touch_getXY() updates global vars

int resetPin = 2;
int SDIO = 20;
int SCLK = 21;

VMA11 radio(resetPin, SDIO, SCLK);
int channel;
int volume;
char rdsname[9];
char rdsrt[65];
char previousRadioText[65];
uint8_t lastChar;

void displayInfo()
{
  tft.setCursor(25, 230);
  tft.setTextSize(2);
  tft.setTextColor(BLACK);
  tft.print("Frequentie : "); tft.print(channel);
  tft.print("       Volume : "); tft.print(volume);
}

bool Touch_getXY(void)
{
  TSPoint p = ts.getPoint();
  pinMode(YP, OUTPUT);      //restore shared pins
  pinMode(XM, OUTPUT);
  digitalWrite(YP, HIGH);   //because TFT control pins
  digitalWrite(XM, HIGH);

  bool pressed = (p.z > MINPRESSURE && p.z < MAXPRESSURE);
  if (pressed)
  {
    pixel_x = map(p.y, TS_TOP, TS_BOT, 0, tft.width());  //Landscape
    pixel_y = map(p.x, TS_RT, TS_LEFT, 0, tft.height());
  }
  return pressed;
}

void setup()
{

  uint16_t ID = tft.readID();
  if (ID == 0xD3D3) ID = 0x9486; // write-only shield
  tft.begin(ID);
  tft.setRotation(1);            //PORTRAIT
  tft.fillScreen(BLACK);

  tft.setTextColor(WHITE);               //set text color white
  tft.setTextSize(2);                    //set text size to 2 (1-6)
  tft.println("            JoMoSoft FM Radio");  //print header to screen

  tft.drawRoundRect(10, 20, 460, 300, 6, WHITE); //draw screen outline
  freq_btn.initButton(&tft, 150, 60, 260, 50, WHITE, RED, WHITE, "FREQUENCY", 2);
  fup_btn.initButton(&tft, 375, 60, 50, 50, WHITE, RED, WHITE, "", 2);
  fdown_btn.initButton(&tft, 435, 60, 50, 50, WHITE, RED, WHITE, "", 2);
  vol_btn.initButton(&tft, 150, 120, 260, 50, WHITE, BLUE, WHITE, "VOLUME", 2);
  vup_btn.initButton(&tft, 375, 120, 50, 50, WHITE, BLUE, WHITE, "", 2);
  vdown_btn.initButton(&tft, 435, 120, 50, 50, WHITE, BLUE, WHITE, "", 2);
  mute_btn.initButton(&tft, 310, 120, 40, 50, WHITE, BLUE, WHITE, "X", 3);
  freq_btn.drawButton(false);
  vol_btn.drawButton(false);
  mute_btn.drawButton(false);
  fup_btn.drawButton(false);
  vup_btn.drawButton(false);
  fdown_btn.drawButton(false);
  vdown_btn.drawButton(false);
  tft.fillTriangle(375, 41, 354, 75, 395, 75, WHITE); //draw up triangle for station
  tft.fillTriangle(435, 75, 416, 41, 452, 41, WHITE); //draw down triangle for station
  tft.fillTriangle(375, 100, 354, 134, 395, 134, WHITE); //draw up triangle for volume
  tft.fillTriangle(435, 135, 416, 100, 452, 100, WHITE); //draw down triangle for volume
  tft.fillRoundRect(20, 230, 440, 75, 6, YELLOW); //info box

  radio.powerOn();
  radio.setVolume(1);
  volume = 1;
  channel = 1010;
  radio.setChannel(channel);

  memset(previousRadioText, 0, 65);
  memset(rdsrt, 0, 65);
  Serial.begin(9600);
}

void loop()
{
  bool down = Touch_getXY();
  vup_btn.press(down && vup_btn.contains(pixel_x, pixel_y));
  vdown_btn.press(down && vdown_btn.contains(pixel_x, pixel_y));
  mute_btn.press(down && mute_btn.contains(pixel_x, pixel_y));
  fup_btn.press(down && fup_btn.contains(pixel_x, pixel_y));
  fdown_btn.press(down && fdown_btn.contains(pixel_x, pixel_y));

  if (vup_btn.justReleased())
  {
    volume ++;
    if (volume >= 16) volume = 15;
    radio.setVolume(volume);
  }
  if (vdown_btn.justReleased())
  {
    volume --;
    if (volume < 0) volume = 0;
    radio.setVolume(volume);
  }
  if (mute_btn.justReleased())
  {
    volume = 0;
    radio.setVolume(volume);
  }
  if (fup_btn.justReleased())
  {
    channel = radio.seekUp();
  }
  if (fdown_btn.justReleased())
  {
    channel = radio.seekDown();
  }
  if (radio.readRDSRadioText(rdsrt))
  {

    if (strcmp(rdsrt, previousRadioText))
    {
      Serial.println(rdsrt);
      strcpy(previousRadioText, rdsrt);
    }
  }
  Serial.println(channel); 
  displayInfo();
}
2

Anyone can tell me what I'm doing wrong ?

The obvious is to post you sketch within </> code-tags and not as an attachment. That way we can all have a look without downloading anything.

3

Thanks, corrected..

4

I reset my tft pins like this :

pinMode(XM, OUTPUT);  // reset the pins after use.
  pinMode(YP, OUTPUT);
  pinMode(XP, OUTPUT);
  pinMode(YM, OUTPUT);

Try that instead of

pinMode(YP, OUTPUT);      //restore shared pins
  pinMode(XM, OUTPUT);
  digitalWrite(YP, HIGH);   //because TFT control pins
  digitalWrite(XM, HIGH);
5

sorry but no change....

6

Everything works fine until I want to print some information , using tft.print.

But you print stuff already in setup(), that was working wasn't it ?
I don't have the exact tft-touch as you (different pins different id), but could it be a conflict with the radio ?