TFT-LCD液晶显示

STM32菜鸟 · 发表于 2012-2-8 21:41:05

关于液晶显示实验有以下几个问题：
1、ILI9320跟LCD在原子大哥的开发板中是怎么连接的？
2、else if(DeviceCode==0x9320||DeviceCode==0x9300)
{
  LCD_WriteReg(0x00,0x0000);
  LCD_WriteReg(0x01,0x0100); //Driver Output Contral.
  LCD_WriteReg(0x02,0x0700); //LCD Driver Waveform Contral.
  LCD_WriteReg(0x03,0x1030);//Entry Mode Set.
  //LCD_WriteReg(0x03,0x1018); //Entry Mode Set.

  LCD_WriteReg(0x04,0x0000); //Scalling Contral.
  LCD_WriteReg(0x08,0x0202); //Display Contral 2.(0x0207)
  LCD_WriteReg(0x09,0x0000); //Display Contral 3.(0x0000)
  LCD_WriteReg(0x0a,0x0000); //Frame Cycle Contal.(0x0000)
  LCD_WriteReg(0x0c,(1<<0)); //Extern Display Interface Contral 1.(0x0000)
  LCD_WriteReg(0x0d,0x0000); //Frame Maker Position.
  LCD_WriteReg(0x0f,0x0000); //Extern Display Interface Contral 2.
  delay_ms(50);
  LCD_WriteReg(0x07,0x0101); //Display Contral.
  delay_ms(50);
  LCD_WriteReg(0x10,(1<<12)|(0<<8)|(1<<7)|(1<<6)|(0<<4)); //Power Control 1.(0x16b0)
  LCD_WriteReg(0x11,0x0007);        //Power Control 2.(0x0001)
  LCD_WriteReg(0x12,(1<<8)|(1<<4)|(0<<0));    //Power Control 3.(0x0138)
  LCD_WriteReg(0x13,0x0b00);        //Power Control 4.
  LCD_WriteReg(0x29,0x0000);        //Power Control 7.

  LCD_WriteReg(0x2b,(1<<14)|(1<<4));
  LCD_WriteReg(0x50,0); //Set X Star
  //水平GRAM终止位置Set X End.
  LCD_WriteReg(0x51,239); //Set Y Star
  LCD_WriteReg(0x52,0); //Set Y End.t.
  LCD_WriteReg(0x53,319); //

  LCD_WriteReg(0x60,0x2700); //Driver Output Control.
  LCD_WriteReg(0x61,0x0001); //Driver Output Control.
  LCD_WriteReg(0x6a,0x0000); //Vertical Srcoll Control.

  LCD_WriteReg(0x80,0x0000); //Display Position? Partial Display 1.
  LCD_WriteReg(0x81,0x0000); //RAM Address Start? Partial Display 1.
  LCD_WriteReg(0x82,0x0000); //RAM Address End-Partial Display 1.
  LCD_WriteReg(0x83,0x0000); //Displsy Position? Partial Display 2.
  LCD_WriteReg(0x84,0x0000); //RAM Address Start? Partial Display 2.
  LCD_WriteReg(0x85,0x0000); //RAM Address End? Partial Display 2.

  LCD_WriteReg(0x90,(0<<7)|(16<<0)); //Frame Cycle Contral.(0x0013)
  LCD_WriteReg(0x92,0x0000); //Panel Interface Contral 2.(0x0000)
  LCD_WriteReg(0x93,0x0001); //Panel Interface Contral 3.
  LCD_WriteReg(0x95,0x0110); //Frame Cycle Contral.(0x0110)
  LCD_WriteReg(0x97,(0<<8)); //
  LCD_WriteReg(0x98,0x0000); //Frame Cycle Contral.
  LCD_WriteReg(0x07,0x0173); //(0x0173)
}关于这一大堆关于LCD的初使化函数，原子大哥是看着数据手册写出来的，还是这些芯片有这部分的程序给我们的？？
3、#define MAX_CHAR_POSX 232
#define MAX_CHAR_POSY 312
这两个不是最大值分别是240，320吗？这里为什么要设置成这些值呢？？
4、void LCD_ShowChar(u16 x,u16 y,u8 num,u8 size,u8 mode)
{
#if USE_HORIZONTAL==1
#define MAX_CHAR_POSX 312
#define MAX_CHAR_POSY 232
#else
#define MAX_CHAR_POSX 232
#define MAX_CHAR_POSY 312
#endif
    u8 temp;
    u8 pos,t;
u16 x0=x;
u16 colortemp=POINT_COLOR;
    if(x>MAX_CHAR_POSX||y>MAX_CHAR_POSY)return;
//设置窗口
num=num-' ';//得到偏移后的值     这里是什么意思？？
if(!mode) //非叠加方式
{
  for(pos=0;pos<size;pos++)
  {
   if(size==12)temp=asc2_1206[num][pos];//调用1206字体
   else temp=asc2_1608[num][pos];   //调用1608字体
   for(t=0;t<size/2;t++)          这里为什么是1/2呢？？
      {
          if(temp&0x01)POINT_COLOR=colortemp;
    else POINT_COLOR=BACK_COLOR;
    LCD_DrawPoint(x,y);
    temp>>=1;
    x++;
      }
   x=x0;
   y++;
  }
}else//叠加方式
{
  for(pos=0;pos<size;pos++)
  {
   if(size==12)temp=asc2_1206[num][pos];//调用1206字体
   else temp=asc2_1608[num][pos];   //调用1608字体
   for(t=0;t<size/2;t++)
      {
          if(temp&0x01)LCD_DrawPoint(x+t,y+pos);//画一个点
          temp>>=1;
      }
  }
}

OINT_COLOR=colortemp;
}