#define LCD_W 240
#define LCD_H 198

void LCD_RESET(void)
{
	LCD_RST_SET;
	delay_ms(20);
	LCD_RST_CLR;
	delay_ms(20);	
	LCD_RST_SET;
	delay_ms(20);
}

void LCD_direction(uint8_t direction)
{ 
	lcddev.setxcmd=0x2A;
	lcddev.setycmd=0x2B;
	lcddev.wramcmd=0x2C;
	lcddev.dir = direction%4;
	switch(lcddev.dir){		  
		case 0:						 	 		
			lcddev.width=LCD_W;
			lcddev.height=LCD_H;	
			lcddev.xoffset=0;
			lcddev.yoffset=0;
			LCD_WriteReg(0x36,0);//BGR==1,MY==0,MX==0,MV==0
		break;
		case 1:
			lcddev.width=LCD_H;
			lcddev.height=LCD_W;
			lcddev.xoffset=0;
			lcddev.yoffset=0;
			LCD_WriteReg(0x36,(1<<6)|(1<<5));//BGR==1,MY==1,MX==0,MV==1
		break;
		case 2:						 	 		
			lcddev.width=LCD_W;
			lcddev.height=LCD_H;
      			lcddev.xoffset=0;
			lcddev.yoffset=122;			
			LCD_WriteReg(0x36,(1<<6)|(1<<7));//BGR==1,MY==0,MX==0,MV==0
		break;
		case 3:
			lcddev.width=LCD_H;
			lcddev.height=LCD_W;
			lcddev.xoffset=122;
			lcddev.yoffset=0;
			LCD_WriteReg(0x36,(1<<7)|(1<<5));//BGR==1,MY==1,MX==0,MV==1
		break;	
		default:break;
	}		
}		

void LCD_SetWindows(uint16_t xStar, uint16_t yStar,uint16_t xEnd,uint16_t yEnd)
{	
	LCD_WR_REG(lcddev.setxcmd);	
	LCD_WR_DATA((xStar+lcddev.xoffset)>>8);
	LCD_WR_DATA(xStar+lcddev.xoffset);		
	LCD_WR_DATA((xEnd+lcddev.xoffset)>>8);
	LCD_WR_DATA(xEnd+lcddev.xoffset);

	LCD_WR_REG(lcddev.setycmd);	
	LCD_WR_DATA((yStar+lcddev.yoffset)>>8);
	LCD_WR_DATA(yStar+lcddev.yoffset);		
	LCD_WR_DATA((yEnd+lcddev.yoffset)>>8);
	LCD_WR_DATA(yEnd+lcddev.yoffset);

	LCD_WR_REG(lcddev.wramcmd);	//开始写入GRAM			
}   

void LCD_Init(void)
{  
	LCD_RESET(); //LCD 复位
//************* ST7789 IPS初始化**********//	
	LCD_WR_REG(0x36); 
	LCD_WR_DATA(0x00);

	LCD_WR_REG(0x3A); 
	LCD_WR_DATA(0x05);

	LCD_WR_REG(0xB2);
	LCD_WR_DATA(0x0C);
	LCD_WR_DATA(0x0C);
	LCD_WR_DATA(0x00);
	LCD_WR_DATA(0x33);
	LCD_WR_DATA(0x33);

	LCD_WR_REG(0xB7); 
	LCD_WR_DATA(0x35);  

	LCD_WR_REG(0xBB);
	LCD_WR_DATA(0x17);

	LCD_WR_REG(0xC0);
	LCD_WR_DATA(0x2C);

	LCD_WR_REG(0xC2);
	LCD_WR_DATA(0x01);

	LCD_WR_REG(0xC3);
	LCD_WR_DATA(0x12);   

	LCD_WR_REG(0xC4);
	LCD_WR_DATA(0x20);  

	LCD_WR_REG(0xC6); 
	LCD_WR_DATA(0x0F);    

	LCD_WR_REG(0xD0); 
	LCD_WR_DATA(0xA4);
	LCD_WR_DATA(0xA1);

	LCD_WR_REG(0xE0);
	LCD_WR_DATA(0xD0);
	LCD_WR_DATA(0x04);
	LCD_WR_DATA(0x0D);
	LCD_WR_DATA(0x11);
	LCD_WR_DATA(0x13);
	LCD_WR_DATA(0x2B);
	LCD_WR_DATA(0x3F);
	LCD_WR_DATA(0x54);
	LCD_WR_DATA(0x4C);
	LCD_WR_DATA(0x18);
	LCD_WR_DATA(0x0D);
	LCD_WR_DATA(0x0B);
	LCD_WR_DATA(0x1F);
	LCD_WR_DATA(0x23);

	LCD_WR_REG(0xE1);
	LCD_WR_DATA(0xD0);
	LCD_WR_DATA(0x04);
	LCD_WR_DATA(0x0C);
	LCD_WR_DATA(0x11);
	LCD_WR_DATA(0x13);
	LCD_WR_DATA(0x2C);
	LCD_WR_DATA(0x3F);
	LCD_WR_DATA(0x44);
	LCD_WR_DATA(0x51);
	LCD_WR_DATA(0x2F);
	LCD_WR_DATA(0x1F);
	LCD_WR_DATA(0x1F);
	LCD_WR_DATA(0x20);
	LCD_WR_DATA(0x23);

	LCD_WR_REG(0x21); 

	LCD_WR_REG(0x11); 
	//Delay (120); 

	LCD_WR_REG(0x29); 	
        LCD_direction(0);//设置LCD显示方向 
}