u16 GUI_GetPoint(u16 xpos,u16 ypos)
{
LCD_WriteReg(0x20, ypos);
LCD_WriteReg(0x21, 319-xpos);
if(lcdid==0x4531)return (LCD_ReadRAM());
else return (LCD_BGR2RGB(LCD_ReadRAM()));
}
int ili9320_read_pixel(int x, int y)
{
int value;
write_reg(0x0020, x);
write_reg(0x0021, y);
WMLCDCOM(0x0022);
value = ILI9320_DATA_ADDRESS;
WMLCDCOM(0x0022);
value = ILI9320_DATA_ADDRESS;
return LCD_BGR2RGB(value);
}
int ili9320_read_pixel(int x, int y)
{
int value;
write_reg(0x0020, x);
write_reg(0x0021, y);
WR_CMD(0x0022);
value = RD_DATA();
WR_CMD(0x0022);
value = RD_DATA();
return LCD_BGR2RGB(value);
}
//读取个某点的颜色值
//x:0~239
//y:0~319
//返回值:此点的颜色
u16 LCD_ReadPoint(u16 x,u16 y)
{
u16 t;
if(x>=LCD_W||y>=LCD_H)return 0;//超过了范围,直接返回
LCD_SetCursor(x,y);
LCD_WR_REG(R34); //选择GRAM地址
GPIOB->CRL=0X88888888; //PB0-7 上拉输入
GPIOB->CRH=0X88888888; //PB8-15 上拉输入
GPIOB->ODR=0XFFFF; //全部输出高
#if LCD_FAST_IO==1 //快速IO
LCD_RS_SET;
LCD_CS_CLR;
//读取数据(读GRAM时,需要读2次)
LCD_RD_CLR;
LCD_RD_SET;
delay_us(2);//FOR 9320,延时2us
//dummy READ
LCD_RD_CLR;
delay_us(2);//FOR 8989,延时2us
LCD_RD_SET;
t=DATAIN;
LCD_CS_SET;
#else
LCD_RS=1;
LCD_CS=0;
//读取数据(读GRAM时,需要读2次)
LCD_RD=0;
LCD_RD=1;
//dummy READ
LCD_RD=0;
LCD_RD=1;
t=DATAIN;
LCD_CS=1;
#endif
GPIOB->CRL=0X33333333; //PB0-7 上拉输出
GPIOB->CRH=0X33333333; //PB8-15 上拉输出
GPIOB->ODR=0XFFFF; //全部输出高
if(DeviceCode==0X4535||DeviceCode==0X4531||DeviceCode==0X8989||DeviceCode==0XB505)return t;//这几种IC直接返回颜色值
else return LCD_BGR2RGB(t);
}