void lcd_write(bit start, uchar in_data)
{
uchar Hdata,Ldata;
while(lcd_busy());
Hdata=in_data&0xf0; //取高四位
Ldata=(in_data<<4)&0xf0; //取低四位
if(start==0)
LCD_RS = 0; //写入命令
else
LCD_RS = 1; //写入数据
LCD_RW = 0;
LCD_EN = 0;
delayNOP();
P0 = Hdata; //发送高四位
LCD_EN = 1;
delayNOP();
LCD_EN = 0;
delayNOP();
P0 = Ldata; //发送低四位
LCD_EN = 1;
delayNOP();
LCD_EN = 0;
delayNOP();
}
void lcd_tx_char(char character) {
while (lcd_busy());
PTH = character;
PORTK |= CHARACTER_WRITE;
PORTK &= REST_STATE;
}
void lcd_tx_control(unsigned char control) {
while (lcd_busy());
PTH = control;
PORTK |= CONTROL_WRITE;
PORTK &= REST_STATE;
}
/*写指令*/
void WriteComm(u8 comm)
{
lcd_busy();
RSL;
RWL;
OutPutData(comm); //列地址赋值，x取值0----64
ENH;
Delay(2);
ENL;
}
/* Schreibt ein Char auf das Display */
int lcd_wchar(int data)
{
int ret,temp;
ret=0;
if(!lcd_busy()) {
temp = data >> 4;
ret = lcd_write_nibble(LCD_DR,temp);
temp = data & 0xf;
ret = lcd_write_nibble(LCD_DR,temp);
}
/*写数据*/
void WriteData(u8 data)
{
lcd_busy();
RSH;
RWL;
OutPutData(data); //数据送显
ENH;
Delay(2);
ENL;
OutPutData(0xff);
}
/*写数据 */
void write_data(uchar dat)
{
while(lcd_busy());
LCD_RS = 1;
LCD_RW = 0;
LCD_EN = 0;
P2 = dat;
delayNOP();
LCD_EN = 1;
delayNOP();
LCD_EN = 0;
}
void lcd_wdat(uchar dat)
{
while(lcd_busy());
LCD_RS = 1;
LCD_RW = 0;
LCD_EN = 0;
P0 = dat;
delayNOP();
LCD_EN = 1;
delayNOP();
LCD_EN = 0;
}
/*写指令数据到LCD */
void lcd_wcmd(uchar cmd)
{
while(lcd_busy());
LCD_RS = 0;
LCD_RW = 0;
LCD_EN = 0;
_nop_();
_nop_();
P2 = cmd;
delayNOP();
LCD_EN = 1;
delayNOP();
LCD_EN = 0;
}
