/**********************************************
函数名：Lcd全屏擦除函数
功能：将Lcd整屏擦为指定颜色
入口参数：color 指定Lcd全屏颜色 RGB(5-6-5)
返回值：无
***********************************************/
void LCD_Clear(unsigned int Color)
{
unsigned long index = 0;
LCD_WR_REG(0x0020,0x0000);//GRAM水平起始位置
LCD_WR_REG(0x0021,00000);
LCD_WR_REG(0x0050,0x00);//水平 GRAM起始位置
LCD_WR_REG(0x0051,239);//水平GRAM终止位置
LCD_WR_REG(0x0052,0x00);//垂直GRAM起始位置
LCD_WR_REG(0x0053,319);//垂直GRAM终止位置
LCD_WR_REG16(0x0022);
LCD_RD_H();
LCD_RS_H();
LCD_CS_L();
for(index = 0; index < 76800; index++)
{
// LCD_WR_DATA16(Color);
LCD_WR_L();
DATA_LCD_PORT=Color>>8;
LCD_WR_H();
LCD_WR_L();
DATA_LCD_PORT=Color&0XFF;
LCD_WR_H();
}
LCD_CS_H();
}
void LCD_WRITE_REG(unsigned int index)
{
int value_index; // uint -> int
LCD_RS_L();
LCD_CS_L();
value_index=index;
value_index =value_index>>8;
SPI0_communication((unsigned char)(value_index)); //00000000 000000000
value_index=index;
value_index &=0x00ff;
SPI0_communication((unsigned char)(index));
LCD_CS_H();
LCD_RS_H();
}
/******************************************************************************
* Function Name : LCD_WRITE_COMMAND
* Description : send command to LCD
* Input : index, data
* Output : None
* Return : None
******************************************************************************/
void LCD_WRITE_COMMAND(unsigned int index,unsigned int data)
{
//select command register
LCD_RS_L();
LCD_CS_L();
SPI0_communication((unsigned char)(index>>8)); //00000000 000000000
SPI0_communication((unsigned char)(index));
LCD_CS_H();
//send data
LCD_RS_H();
LCD_CS_L();
SPI0_communication((unsigned char)(data>>8)); //00000000 000000000
SPI0_communication((unsigned char)(data));
LCD_CS_H();
}
void LCD_WR_DATA16(unsigned int data)//写积存器数据
{
LCD_RD_H();
LCD_RS_H();
LCD_CS_L();
LCD_WR_L();
DATA_LCD_PORT=data>>8;
delay_us(1);
LCD_WR_H();
LCD_WR_L();
delay_us(1);
DATA_LCD_PORT=data&0XFF;
delay_us(1);
LCD_WR_H();
LCD_CS_H();
}