/*******************************************************************************
LCD_WR_REG: Set LCD Register Input: Register addr., Data
*******************************************************************************/
void LCD_WR_REG(unsigned short Reg, unsigned short Data)
{
LDC_DATA_OUT=Reg; //Reg. Addr.
LCD_RS_LOW(); //RS=0,Piont to Index Reg.
LCD_nWR_ACT(); //WR Cycle from 1 -> 0 -> 1
LCD_RS_HIGH(); //RS=1,Piont to object Reg.
LDC_DATA_OUT=Data; //Reg. Data
LCD_nWR_ACT(); //WR Cycle from 1 -> 0 -> 1
}
/*******************************************************************************
Point_SCR: Set display position Input: X, Y
*******************************************************************************/
void Point_SCR(unsigned short x0, unsigned short y0)
{
LCD_WR_REG(0x0020,y0);
LCD_WR_REG(0x0021,x0);
LDC_DATA_OUT=0x0022; //DRAM Reg.
LCD_RS_LOW();
LCD_nWR_ACT(); //WR Cycle from 1 -> 0 -> 1
LCD_nWR_ACT(); //WR Cycle from 1 -> 0 -> 1
LCD_RS_HIGH();
}
/*******************************************************************************
LCD_SET_WINDOW: 设置LCD模块上指定的窗口位置。 输入: x0、x1、y0、y1
*******************************************************************************/
void LCD_SET_WINDOW(short x1, short x2,short y1, short y2)
{
__LCD_WR_REG(0x0050, y1);
__LCD_WR_REG(0x0051, y2);
__LCD_WR_REG(0x0052, x1);
__LCD_WR_REG(0x0053, x2);
__LCD_WR_REG(0x0020, y1);
__LCD_WR_REG(0x0021, x1);
LDC_DATA_OUT=0x0022; //Reg. Addr.
LCD_RS_LOW(); //RS=0,Piont to Index Reg.
LCD_nWR_ACT(); //WR Cycle from 1 -> 0 -> 1
LCD_nWR_ACT(); //WR Cycle from 1 -> 0 -> 1
LCD_RS_HIGH(); //RS=1,Piont to object Reg.
}
/*******************************************************************************
Set_Pixel: Set a Pixel Input: Color
*******************************************************************************/
void Set_Pixel(unsigned short Color)
{
LDC_DATA_OUT=Color; //Color Data
LCD_nWR_ACT(); //WR Cycle from 1 -> 0 -> 1
}
/*******************************************************************************
LCD initializtion
*******************************************************************************/
void LCD_Initial(void)
{
//------------------------- Reset LCD Driver ---------------------//
LCD_DATA_BUS_OUT(); //Set LCD Data Bus as Output Mode
LCD_nWR_HIGH();
LCD_nRD_HIGH();
LCD_RS_HIGH(); //RS=1
LCD_nRST_HIGH();
Delayms(1); //RST=1£¬Delay 1ms
LCD_nRST_LOW();
Delayms(1); //RST=0 Reset LCD£¬Delay 1ms
LCD_nRST_HIGH();
Delayms(5); //RST=1£¬Delay 5 ms
//----------------ST7781 Internal Register Initial------------//
LCD_WR_REG(0x00FF, 0x0001);
LCD_WR_REG(0x00F3, 0x0008);
LDC_DATA_OUT=0x00F3;
LCD_RS_LOW();
LCD_nWR_ACT(); //Read Parameter
LCD_RS_HIGH();
//-------------------Display Control Setting-----------------//
LCD_WR_REG(0x0001, 0x0100); //Output Direct
LCD_WR_REG(0x0002, 0x0700); //Line Inversion
LCD_WR_REG(0x0003, 0x0030); //BGR=0,ID=11
LCD_WR_REG(0x0008, 0x0302); //Porch Setting
LCD_WR_REG(0x0009, 0x0000); //Scan Cycle
LCD_WR_REG(0x000A, 0x0000); //FMARK off
//----------------power Control Register Initial------------//
LCD_WR_REG(0x0010, 0x0790); //Power Control1
LCD_WR_REG(0x0011, 0x0005); //Power Control2
LCD_WR_REG(0x0012, 0x0000); //Power Control3
LCD_WR_REG(0x0013, 0x0000); //Power Control4
Delayms(100); //Delay 100ms
LCD_WR_REG(0x0010, 0x12B0); //Power Control1
Delayms(50); //delay 50ms
LCD_WR_REG(0x0011, 0x0007); //Power Control2
Delayms(50); //delay 50ms
LCD_WR_REG(0x0012, 0x008C); //Power Control3
LCD_WR_REG(0x0013, 0x1700); //Power Control4
LCD_WR_REG(0x0029, 0x001A); //VCOMH Setting
Delayms(50); //delay 50ms
//------------------GAMMA Cluster Setting-------------------//
LCD_WR_REG(0x0030, 0x0000);
LCD_WR_REG(0x0031, 0x0507);
LCD_WR_REG(0x0032, 0x0003);
LCD_WR_REG(0x0035, 0x0200);
LCD_WR_REG(0x0036, 0x0106);
LCD_WR_REG(0x0037, 0x0000);
LCD_WR_REG(0x0038, 0x0507);
LCD_WR_REG(0x0039, 0x0104);
LCD_WR_REG(0x003C, 0x0200);
LCD_WR_REG(0x003D, 0x0005);
//------------------Display Windows 240*320-----------------//
LCD_WR_REG(0x0050, 0x0000);
LCD_WR_REG(0x0051, 0x00EF);
LCD_WR_REG(0x0052, 0x0000);
LCD_WR_REG(0x0053, 0x013F);
//--------------------Frame Rate Setting--------------------//
LCD_WR_REG(0x0060, 0xA700);
LCD_WR_REG(0x0061, 0x0001);
LCD_WR_REG(0x0090, 0x0033);
LCD_WR_REG(0x0007, 0x0133);
Delayms(50); //delay 50ms
}
