Hola, soy nuevo en el foro y por supuesto me he leído las normas de buenas prácticas para postear. 
Me compré este TFT2.4 240x320 v1.0 ILI9341: http://www.ebay.es/itm/Pantalla-LCD-TFT-2-4-Display-Touch-240x320-Arduino-UNO-Mega-2560-con-lector-SD/222596281648?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
Cuando ví que lo mejor era comprarse una shield, me compré esta: http://www.ebay.es/itm/Adaptador-TFT-LCD-2-4-shield-UNO-R3-expansion-board-SD-Adapter-Arduino-P0004/201592529190?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
Invertí horas y horas y días enteros buscando librerías y nada me funcionaba. Si os lelgo a decir el número de horas no me creeríais. He llegado a instalar toda clase de librerías, retocando configuraciones, etc.
El caso es que por fin aqui encontré este código que me funciona en mi Arduino Uno, pero NO ME FUNCIONA en el MEGA 2560. Ambos Arduinos son compatibles con el chip CH340.
/*================================================================
This demo code shows how to use the touch screen in TFT01
The LCD connection is the same as that in “8 Bit Pant Demo“
by Elecfreaks
================================================================*/
#define LCD_RS 19
#define LCD_WR 18
#define LCD_CS 17
#define LCD_REST 16
#define DCLK 15
#define DIN 14
#define CS 8
#define DOUT 9
//#define IRQ 8
unsigned int TP_X,TP_Y;
unsigned int TouchCount=0;
int pacy=0;
void spistar() //SPI Start
{
digitalWrite(CS,LOW);
digitalWrite(DCLK,HIGH);
digitalWrite(DIN,HIGH);
digitalWrite(DCLK,HIGH);
}
//**********************************************************
void WriteCharTo7843(unsigned char num) //SPI Write Data
{
unsigned char count=0;
unsigned char temp;
unsigned nop;
temp=num;
digitalWrite(DCLK,LOW);
for(count=0;count<8;count++)
{
if(temp&0x80)
digitalWrite(DIN,HIGH);
else
digitalWrite(DIN,LOW);
temp=temp<<1;
digitalWrite(DCLK,LOW);
nop++;
nop++;
digitalWrite(DCLK,HIGH);
nop++;
nop++;
}
}
//**********************************************************
unsigned int ReadFromCharFrom7843() //SPI Read Data
{
unsigned nop;
unsigned char count=0;
unsigned int Num=0;
for(count=0;count<12;count++)
{
Num<<=1;
digitalWrite(DCLK,HIGH);//DCLK=1; _nop_();_nop_();_nop_();
nop++;
digitalWrite(DCLK,LOW);//DCLK=0; _nop_();_nop_();_nop_();
nop++;
if(digitalRead(DOUT)) Num++;
}
return(Num);
}
void LCD_Writ_Bus(char VH,char VL)
{
PORTD = VH;
digitalWrite(LCD_WR,LOW);
digitalWrite(LCD_WR,HIGH);
PORTD = VL;
digitalWrite(LCD_WR,LOW);
digitalWrite(LCD_WR,HIGH);
}
void LCD_Write_COM(char VH,char VL)
{
digitalWrite(LCD_RS,LOW);
LCD_Writ_Bus(VH,VL);
}
void LCD_Write_DATA(char VH,char VL)
{
digitalWrite(LCD_RS,HIGH);
LCD_Writ_Bus(VH,VL);
}
void Lcd_Write_Com_Data(int com,int val) //发送数据命令
{
LCD_Write_COM(com>>8,com);
LCD_Write_DATA(val>>8,val);
}
void Address_set(unsigned int x1,unsigned int y1,unsigned int x2,unsigned int y2)
{
LCD_Write_COM(0x00,0x46);LCD_Write_DATA(x2,x1);
LCD_Write_COM(0x00,0x47);LCD_Write_DATA(y2>>8,y2);
LCD_Write_COM(0x00,0x48);LCD_Write_DATA(y1>>8,y1);
LCD_Write_COM(0x00,0x20);LCD_Write_DATA(x1>>8,x1);
LCD_Write_COM(0x00,0x21);LCD_Write_DATA(y1>>8,y1);
LCD_Write_COM(0x00,0x22);
}
void LCD_Init(void)
{
digitalWrite(LCD_REST,HIGH);
delay(5);
digitalWrite(LCD_REST,LOW);
delay(5);
digitalWrite(LCD_REST,HIGH);
delay(5);
digitalWrite(LCD_CS,LOW);
Lcd_Write_Com_Data(0x11,0x2004);
Lcd_Write_Com_Data(0x13,0xCC00);
Lcd_Write_Com_Data(0x15,0x2600);
Lcd_Write_Com_Data(0x14,0x252A);
Lcd_Write_Com_Data(0x12,0x0033);
Lcd_Write_Com_Data(0x13,0xCC04);
delay(1);
Lcd_Write_Com_Data(0x13,0xCC06);
delay(1);
Lcd_Write_Com_Data(0x13,0xCC4F);
delay(1);
Lcd_Write_Com_Data(0x13,0x674F);
Lcd_Write_Com_Data(0x11,0x2003);
delay(1);
Lcd_Write_Com_Data(0x30,0x2609);
Lcd_Write_Com_Data(0x31,0x242C);
Lcd_Write_Com_Data(0x32,0x1F23);
Lcd_Write_Com_Data(0x33,0x2425);
Lcd_Write_Com_Data(0x34,0x2226);
Lcd_Write_Com_Data(0x35,0x2523);
Lcd_Write_Com_Data(0x36,0x1C1A);
Lcd_Write_Com_Data(0x37,0x131D);
Lcd_Write_Com_Data(0x38,0x0B11);
Lcd_Write_Com_Data(0x39,0x1210);
Lcd_Write_Com_Data(0x3A,0x1315);
Lcd_Write_Com_Data(0x3B,0x3619);
Lcd_Write_Com_Data(0x3C,0x0D00);
Lcd_Write_Com_Data(0x3D,0x000D);
Lcd_Write_Com_Data(0x16,0x0007);
Lcd_Write_Com_Data(0x02,0x0013);
Lcd_Write_Com_Data(0x03,0x0003);
Lcd_Write_Com_Data(0x01,0x0127);
delay(1);
Lcd_Write_Com_Data(0x08,0x0303);
Lcd_Write_Com_Data(0x0A,0x000B);
Lcd_Write_Com_Data(0x0B,0x0003);
Lcd_Write_Com_Data(0x0C,0x0000);
Lcd_Write_Com_Data(0x41,0x0000);
Lcd_Write_Com_Data(0x50,0x0000);
Lcd_Write_Com_Data(0x60,0x0005);
Lcd_Write_Com_Data(0x70,0x000B);
Lcd_Write_Com_Data(0x71,0x0000);
Lcd_Write_Com_Data(0x78,0x0000);
Lcd_Write_Com_Data(0x7A,0x0000);
Lcd_Write_Com_Data(0x79,0x0007);
Lcd_Write_Com_Data(0x07,0x0051);
delay(1);
Lcd_Write_Com_Data(0x07,0x0053);
Lcd_Write_Com_Data(0x79,0x0000);
LCD_Write_COM(0x00,0x22);
digitalWrite(LCD_CS,HIGH);
}
void Pant(char VH,char VL)
{
int i,j;
digitalWrite(LCD_CS,LOW);
Address_set(0,0,240,320);
for(i=0;i<=320;i++)
{
for (j=0;j<=240;j++)
{
LCD_Write_DATA(VH,VL);
}
}
digitalWrite(LCD_CS,HIGH);
}
void AD7843(void)
{
digitalWrite(CS,LOW);
WriteCharTo7843(0x90);
digitalWrite(DCLK,HIGH);
digitalWrite(DCLK,LOW);
TP_Y=ReadFromCharFrom7843();
WriteCharTo7843(0xD0);
digitalWrite(DCLK,HIGH);
digitalWrite(DCLK,LOW);
TP_X=ReadFromCharFrom7843();
digitalWrite(CS,HIGH);
}
void setup()
{
unsigned char p;
int i,j,k;
for(p=0;p<20;p++)
{
pinMode(p,OUTPUT);
}
pinMode(DOUT,INPUT);
// pinMode(IRQ,INPUT);
LCD_Init();
Pant(0x00,0x00);
}
void loop()
{ TouchCount++;
unsigned char flag;
unsigned char ss[6];
unsigned int lx,ly;
spistar();
if(TouchCount==200)
{
pacy=random(0, 7);
TouchCount=0;
}
// while(digitalRead(IRQ)==0)
// {
digitalWrite(LCD_CS,LOW);
AD7843();
lx=240-((TP_X-220)/16);
ly=320-((TP_Y-400)/11);
Address_set(lx,ly,lx+2,ly+2);
switch(pacy)
{
case 0: for(int i=0; i<5; i++) LCD_Write_DATA(0xF8,0x00); break; //Red
case 1: for(int i=0; i<5; i++) LCD_Write_DATA(0xFF,0xE0); break; //Yellow
case 2: for(int i=0; i<5; i++) LCD_Write_DATA(0xFF,0xFF); break; //White
case 3: for(int i=0; i<5; i++) LCD_Write_DATA(0x05,0x1F); break; //Blue
case 4: for(int i=0; i<5; i++) LCD_Write_DATA(0x00,0x1F); break; //Blue-2
case 5: for(int i=0; i<5; i++) LCD_Write_DATA(0xF8,0x1F); break; //Magenta
case 6: for(int i=0; i<5; i++) LCD_Write_DATA(0x07,0xE0); break; //Green
case 7: for(int i=0; i<5; i++) LCD_Write_DATA(0x7F,0xFF); break; //Cyan
defoult:for(int i=0; i<5; i++) LCD_Write_DATA(0x00,0x00); break; //Black
}
digitalWrite(LCD_CS,HIGH);
// }
}
El código lo encontré aquí. micro:bit Accessories Store | ELECFREAKS
¿alguien puede darme una pista? Gracias!
