static inline unsigned short rd_dat (void) {
unsigned short val = 0;
LCD_RS(1)
LCD_WR(1)
//LCD_RD(0);
val = lcd_read();
//LCD_RD(1);
return val;
}
/**
* Waits until busy flag of LCD is cleared
*/
static void lcdBusyWait() {
LCD_RW(1);
LCD_RS(0);
LCD_DATA_DDR = 0x00; /* input */
delay_us(LCD_DELAY_SHORT); /* RS, RW Setup Time (Minimum: 60ns) */
lcdToggleEn();
loop_until_bit_is_clear(LCD_DATA_PIN,LCD_BUSY_FLAG);
lcdToggleEn();
}
/**
* Writes instructions to the LCD
*
* Inputs: db LCD instruction
* rs for commands, rs = 0
* for sending data, rs = 1
*/
static void lcdWrite(BYTE db, BYTE rs) {
lcdBusyWait();
LCD_RW(0);
LCD_RS(rs);
LCD_DATA_DDR = 0xFF; /* output */
LCD_DATA_PORT = db;
delay_us(LCD_DELAY_EN); /* RS, RW Setup Time (Minimum: 60ns) */
lcdToggleEn();
}
static void SendStartByte( unsigned char RW, unsigned char RS)
{
#define LCD_DEV_ID(v) (v<<2)
#define LCD_RS(v) (v<<1)
#define LCD_RW(v) (v<<0)
unsigned char StartByte = 0x70;
StartByte |= (LCD_DEV_ID(0) | LCD_RS(RS) | LCD_RW(RW));
SendByte( StartByte);
}
//写指令
void WriteCommandLCD(unsigned char WCLCD) //BuysC为0时忽略忙检测
{
ReadStatusLCD(); //根据需要检测忙
LCD_RS(0);
LCD_RW(0);
LCD_EN(0);
Delay_us(1);
LCD_WriteData(WCLCD);
LCD_EN(1);
Delay_us(1);
LCD_EN(0);
}
//写数据
void WriteDataLCD(unsigned char WDLCD)
{
ReadStatusLCD(); //检测忙
LCD_RS(1);
LCD_RW(0);
LCD_EN(0);
Delay_us(1);
LCD_WriteData(WDLCD);
LCD_EN(1);
Delay_us(1);
LCD_EN(0);
}
uint8_t
LCD_read(uint8_t RS)
{
volatile uint8_t buf = 0;
LCD_DATA_PORT->DIR &= ~(0xF0);
LCD_RS(RS);
LCD_RW(1);
LCD_EN(1);
LCD_EN(0);
buf = LCD_DATA_PORT->DATA & 0xF0;
LCD_EN(1);
LCD_EN(0);
buf |= LCD_DATA_PORT->DATA >> 4;
return buf;
}
void
__LCD_write(uint8_t RS,uint8_t data,uint8_t wait){
LCD_DATA_PORT->DIR |= 0xF0;
LCD_RS(RS);
LCD_RW(0);
LCD_DATA_PORT->DATA = (LCD_CONTROL_PORT->DATA & ~(0xF0))|(data&0xF0);
LCD_EN(1);
LCD_EN(0);
data <<=4;
LCD_DATA_PORT->DATA = (LCD_CONTROL_PORT->DATA & ~(0xF0))|(data&0xF0);
LCD_EN(1);
LCD_EN(0);
if(wait){
while(LCD_read(0) & 0x80);
}
}
//读状态
void ReadStatusLCD(void)
{
unsigned char lcd_status;
LCD_RS(0);
LCD_RW(1);
LCD_Data_In();
do
{
LCD_EN(1);
Delay_us(1);
lcd_status=GPIO_ReadInputData( LCD12864_GPIO);
LCD_EN(0);
}
while (lcd_status&Busy); //检测忙信号
LCD_Data_Out();
}
static inline void wr_dat (unsigned short c) {
LCD_RS(1)
LCD_RD(1)
lcd_send(c);
}
static inline void wr_cmd (unsigned char c) {
LCD_RS(0)
LCD_RD(1)
lcd_send(c);
}
LCD_WR(1)
//LCD_RD(0);
val = lcd_read();
//LCD_RD(1);
return val;
}
/*******************************************************************************
* Start of data writing to LCD controller *
* Parameter: *
* Return: *
*******************************************************************************/
static inline void wr_dat_start (void) {
LCD_RS(1)
}
/*******************************************************************************
* Stop of data writing to LCD controller *
* Parameter: *
* Return: *
*******************************************************************************/
static inline void wr_dat_stop (void) {
LCD_CS(1)
}
/**********************************************
Lcd初始化函数
Initial condition (DB0-15,RS,CSB,WRD,RDB,RESETB="L")
***********************************************/
void Lcd_Initialize(void)
{
int i;
SPI_CS(1);
WriteComm(0x0001);
Delay(100);
SPI_CS(0);
WriteComm(0x0011);
Delay(20);
WriteComm(0x00D0);
WriteData(0x0007);
WriteData(0x0041);
WriteData(0x001C);
WriteComm(0x00D1);
WriteData(0x0000);
WriteData(0x0036); //30 vcm
WriteData(0x001B); //15 vdv
WriteComm(0x00D2);
WriteData(0x0001); // AP0[2:0]
WriteData(0x0011); // DC10[2:0],DC00[2:0]
WriteComm(0x00C0); //****** *******
WriteData(0x0010); // REV & SM & GS
WriteData(0x003B); // NL[5:0]
WriteData(0x0000); // SCN[6:0]
WriteData(0x0012); //02 NDL , PTS[2:0]
WriteData(0x0001); //11 PTG , ISC[3:0]
WriteComm(0x00C5);
WriteData(0x0003);
WriteComm(0x00C8);
WriteData(0x0000);
WriteData(0x0057);
WriteData(0x0033);
WriteData(0x0000);
WriteData(0x0000);
WriteData(0x0000);
WriteData(0x0044);
WriteData(0x0002);
WriteData(0x0077);
WriteData(0x0000);
WriteData(0x0000);
WriteData(0x0000);
WriteComm(0x00F8);
WriteData(0x0001);
WriteComm(0x00FE);
WriteData(0x0000);
WriteData(0x0002);
WriteComm(0x0036); // Set_address_mode
WriteData(0x000A); // Bit3: RGB/BGR
Delay(20);
WriteComm(0x003a); // Set_address_mode
WriteData(0x0055); //05---16BIT,06---18BIT
Delay(20);
WriteComm(0x0029);
Delay(10);
WriteComm(0x36); //Set_address_mode
WriteData(0x68); //横屏，从左下角开始，从左到右，从下到上
Lcd_Light_ON;
// while(1)
{
WriteComm(0x36);//竖屏
WriteData(0x48);//
// while(!(SPI1->SR&0x0002));
for(i=0;i<320*480;i++)
{
LCD_RS(1);
SPI_I2S_SendData(SPI1, COLOR_BLUE>>8);
LCD_RS(1);
SPI_I2S_SendData(SPI1, COLOR_BLUE);
}
for(i=0;i<320*480;i++)
{
LCD_RS(1);
SPI_I2S_SendData(SPI1, COLOR_YELLOW>>8);
LCD_RS(1);
SPI_I2S_SendData(SPI1, COLOR_YELLOW);
}
WriteComm(0x36);
WriteData(0x28);//
}
}
WriteData(u16 tem_data)
{
LCD_RS(1);
SPI_I2S_SendData(SPI1, tem_data);
}
void WriteComm(u16 CMD)
{
LCD_RS(0);
SPI_I2S_SendData(SPI1, CMD);
}