#define LCD_RD   A0
#define LCD_WR   A1    
#define LCD_RS   A2       
#define LCD_CS   A3      
#define LCD_REST A4

void Lcd_Writ_Bus(unsigned char d)
{
 PORTD = (PORTD & B00000011) | ((d) & B11111100);
 PORTB = (PORTB & B11111100) | ((d) & B00000011);
 *(portOutputRegister(digitalPinToPort(LCD_WR))) &=  ~digitalPinToBitMask(LCD_WR);
 *(portOutputRegister(digitalPinToPort(LCD_WR)))|=  digitalPinToBitMask(LCD_WR);
}

void Lcd_Write_Com(unsigned char VH) 
{  
  *(portOutputRegister(digitalPinToPort(LCD_RS))) &=  ~digitalPinToBitMask(LCD_RS);//LCD_RS=0;
  Lcd_Writ_Bus(VH);
}

void Lcd_Write_Data(unsigned char VH)
{
  *(portOutputRegister(digitalPinToPort(LCD_RS)))|=  digitalPinToBitMask(LCD_RS);//LCD_RS=1;
  Lcd_Writ_Bus(VH);
}

void Lcd_Write_Com_Data(unsigned char com,unsigned char dat)
{
  Lcd_Write_Com(com);
  Lcd_Write_Data(dat);
}

void Address_set(unsigned int x1,unsigned int y1,unsigned int x2,unsigned int y2)
{
        Lcd_Write_Com(0x2a);
 Lcd_Write_Data(x1>>8);
 Lcd_Write_Data(x1);
 Lcd_Write_Data(x2>>8);
 Lcd_Write_Data(x2);
        Lcd_Write_Com(0x2b);
 Lcd_Write_Data(y1>>8);
 Lcd_Write_Data(y1);
 Lcd_Write_Data(y2>>8);
 Lcd_Write_Data(y2);
 Lcd_Write_Com(0x2c);        
}

void Lcd_Init(void)
{
  digitalWrite(LCD_REST,HIGH);
  delay(5);
  digitalWrite(LCD_REST,LOW);
  delay(15);
  digitalWrite(LCD_REST,HIGH);
  delay(15);

  digitalWrite(LCD_CS,HIGH);
  digitalWrite(LCD_WR,HIGH);
  digitalWrite(LCD_CS,LOW);  //CS

    Lcd_Write_Com(0xCB); 
    Lcd_Write_Data(0x39);
    Lcd_Write_Data(0x2C);
    Lcd_Write_Data(0x00);
    Lcd_Write_Data(0x34);
    Lcd_Write_Data(0x02);

    Lcd_Write_Com(0xCF); 
    Lcd_Write_Data(0x00);
    Lcd_Write_Data(0XC1);
    Lcd_Write_Data(0X30);

    Lcd_Write_Com(0xE8); 
    Lcd_Write_Data(0x85);
    Lcd_Write_Data(0x00);
    Lcd_Write_Data(0x78);

    Lcd_Write_Com(0xEA); 
    Lcd_Write_Data(0x00);
    Lcd_Write_Data(0x00);
 
    Lcd_Write_Com(0xED); 
    Lcd_Write_Data(0x64);
    Lcd_Write_Data(0x03);
    Lcd_Write_Data(0X12);
    Lcd_Write_Data(0X81);

    Lcd_Write_Com(0xF7); 
    Lcd_Write_Data(0x20);
 
    Lcd_Write_Com(0xC0);    //Power control
    Lcd_Write_Data(0x23);   //VRH[5:0]
 
    Lcd_Write_Com(0xC1);    //Power control
    Lcd_Write_Data(0x10);   //SAP[2:0];BT[3:0]

    Lcd_Write_Com(0xC5);    //VCM control
    Lcd_Write_Data(0x3e);   //Contrast
    Lcd_Write_Data(0x28);
 
    Lcd_Write_Com(0xC7);    //VCM control2
    Lcd_Write_Data(0x86);   //--
 
    Lcd_Write_Com(0x36);    // Memory Access Control
    Lcd_Write_Data(0x48);  

    Lcd_Write_Com(0x3A);   
    Lcd_Write_Data(0x55);

    Lcd_Write_Com(0xB1);   
    Lcd_Write_Data(0x00); 
    Lcd_Write_Data(0x18);
 
    Lcd_Write_Com(0xB6);    // Display Function Control
    Lcd_Write_Data(0x08);
    Lcd_Write_Data(0x82);
    Lcd_Write_Data(0x27); 

    Lcd_Write_Com(0x11);    //Exit Sleep
    delay(120);
    
    Lcd_Write_Com(0x29);    //Display on
    Lcd_Write_Com(0x2c);
}

void H_line(unsigned int x, unsigned int y, unsigned int l, unsigned int c)                  
{ 
  unsigned int i,j;
  Lcd_Write_Com(0x02c); //write_memory_start
  digitalWrite(LCD_RS,HIGH);
  digitalWrite(LCD_CS,LOW);
  l=l+x;
  Address_set(x,y,l,y);
  j=l*2;
  for(i=1;i<=j;i++)
  {
    Lcd_Write_Data(c);
  }
  digitalWrite(LCD_CS,HIGH);  
}

void V_line(unsigned int x, unsigned int y, unsigned int l, unsigned int c)                  
{ 
  unsigned int i,j;
  Lcd_Write_Com(0x02c); //write_memory_start
  digitalWrite(LCD_RS,HIGH);
  digitalWrite(LCD_CS,LOW);
  l=l+y;
  Address_set(x,y,x,l);
  j=l*2;
  for(i=1;i<=j;i++)
  {
    Lcd_Write_Data(c);
  }
  digitalWrite(LCD_CS,HIGH);  
}

void Rect(unsigned int x,unsigned int y,unsigned int w,unsigned int h,unsigned int c)
{
  H_line(x  , y  , w, c);
  H_line(x  , y+h, w, c);
  V_line(x  , y  , h, c);
  V_line(x+w, y  , h, c);
}

void Rectf(unsigned int x,unsigned int y,unsigned int w,unsigned int h,unsigned int c)
{
  unsigned int i;
  for(i=0;i   {
    H_line(x  , y  , w, c);
    H_line(x  , y+i, w, c);
  }
}
int RGB(int r,int g,int b)
{return r << 16 | g << 8 | b;
}
void LCD_Clear(unsigned int j)                  
{ 
  unsigned int i,m;
 Address_set(0,0,240,320);
  //Lcd_Write_Com(0x02c); //write_memory_start
  //digitalWrite(LCD_RS,HIGH);
  digitalWrite(LCD_CS,LOW);;i++)

  for(i=0;i<240;i++)
    for(m=0;m<320;m++)
    {
      Lcd_Write_Data(j>>8);
      Lcd_Write_Data(j);

    }
  digitalWrite(LCD_CS,HIGH);  
}

void setup()
{
  for(int p=0;p<10;p++)
  {
    pinMode(p,OUTPUT);
  }
  pinMode(A0,OUTPUT);
  pinMode(A1,OUTPUT);
  pinMode(A2,OUTPUT);
  pinMode(A3,OUTPUT);
  pinMode(A4,OUTPUT);
  digitalWrite(A0, HIGH);
  digitalWrite(A1, HIGH);
  digitalWrite(A2, HIGH);
  digitalWrite(A3, HIGH);
  digitalWrite(A4, HIGH);
  Lcd_Init();
 //LCD_Clear(0xf800);
}

void loop()
{ 
   LCD_Clear(0xf800);
   LCD_Clear(0x07E0);
   LCD_Clear(0x001F);
  /*  
  for(int i=0;i<1000;i++)
  {
    Rect(random(300),random(300),random(300),random(300),random(65535)); // rectangle at x, y, with, hight, color
  }*/
 
//  LCD_Clear(0xf800);
}

 

 

Der Display muss nur auf den Arduinio draufgesteckt werden. Auf dem Display werden die Fraben rot, grün und blau abwechselnd angezeigt.

Erstellt: Eva Schwegle (05.02.2020) Letzte Änderung: Eva Schwegle (19.02.2020)