TFTLCD屏，关于OTM8012A驱动问题，

唯有如此

清屏函数能用，画点函数画不出点，请求大佬们指导下

/*
****************************************************************
*功能: 清屏函数
*参数: 填充的颜色和位置       
****************************************************************
*/
void LCD_Clear(u16 color)
{
        u16 x=0,y=0;
        u32 index=0;
        u32 totalpoint = lcd_dev.width;
        totalpoint *= lcd_dev.height;

        LCD_WR_REG(0X2A00);                /* column address control set */  
        LCD_WR_DATA((x>>8)& 0xFF);       
        LCD_WR_REG(0X2A01);
        LCD_WR_DATA(x&0xff);
        LCD_WR_REG(0X2A02);
        LCD_WR_DATA(((lcd_dev.width-1) >>8)& 0xFF);
        LCD_WR_REG(0X2A03);
        LCD_WR_DATA((lcd_dev.width-1) &0xff);

        LCD_WR_REG(0X2B00);                /* page address control set */               
        LCD_WR_DATA((y>>8)& 0xFF);
        LCD_WR_REG(0X2B01);
        LCD_WR_DATA(y&0xff);
        LCD_WR_REG(0X2B02);
        LCD_WR_DATA(((lcd_dev.height-1) >>8)& 0xFF);
        LCD_WR_REG(0X2B03);                                       
        LCD_WR_DATA((lcd_dev.height-1) &0xff);
       
        LCD_WR_REG(0x2C00);               

        for( index=0;index < totalpoint; index++ )
        {
                LCD_WR_DATA( color );
        }
}

/*
****************************************************************
*功能: 画点
*参数: 横纵坐标值
****************************************************************
*/
void LCD_DrawPoint(u16 x,u16 y)
{

        BlockWrite(x,x+1,y,y+1); //设置光标位置
        LCD->LCD_RAM =  POINT_COLOR ;
}

void BlockWrite(unsigned int Xstart,unsigned int Xend,unsigned int Ystart,unsigned int Yend)
{


        WriteComm(0x2a00); WriteData(Xstart>>8);
        WriteComm(0x2a01); WriteData(Xstart&0xff);
        WriteComm(0x2a02); WriteData(Xend>>8);
        WriteComm(0x2a03); WriteData(Xend&0xff);

        WriteComm(0x2b00); WriteData(Ystart>>8);
        WriteComm(0x2b01); WriteData(Ystart&0xff);
        WriteComm(0x2b02); WriteData(Yend>>8);
        WriteComm(0x2b03); WriteData(Yend&0xff);

        WriteComm(0x2c00);
       
}