單片機液晶顯示代碼

//***************************************以下單片機液晶顯示****************************************************

void waitLcd() //just wait until 液晶不忙為止

{

char temp;

bit flag=1;

while(flag==1)

{

temp=XBYTE[rc];

if (temp>>7==0) flag=0;

P1=temp;

}

P1=0xff;

}

//just wait until 液晶不忙為止

void WriteCommand_Lcd(bit isCheck,char c)

{

if (isCheck==1) waitLcd();

XBYTE[wc]=c;

}

void writedata(char c)

{

waitLcd();

XBYTE[wd]=c;

}

void LcdInit()

{

delay5ms();

delay5ms();

delay5ms();

WriteCommand_Lcd(0,0x38); //三次顯示模式設置,不檢測忙信號

delay5ms();

WriteCommand_Lcd(0,0x38);

delay5ms();

WriteCommand_Lcd(0,0x38);

delay5ms();

WriteCommand_Lcd(1,0x38); //顯示模式設置,開始要求每次檢測忙信號,8位2行5*7

WriteCommand_Lcd(1,0x08); //關閉顯示

WriteCommand_Lcd(1,0x01); //清顯示

WriteCommand_Lcd(1,0x06); // 文字不動,光標右移

WriteCommand_Lcd(1,0x0C); // 顯示開及光標設置

}

void displayListChar(unsigned char X, unsigned char Y, uchar DData)

{

Y = 0x1;

X = 0xF;

if (X = 0xF)

{

Y = 0x1;

X = 0xF;

if (Y) X = 0x40;

X = 0x80;

WriteCommand_Lcd(0,X);

writedata(dispbuf[DData]);

}

}

//****************************************以上單片機液晶顯示驅動*****************************************************

//*************************************************

//**********************************以下顯示時間*****************************************************

void Show_Time(void)

{

displayListChar(0,0,hour/10);

displayListChar(1,0,hour%10);

displayListChar(2,0,10);

displayListChar(3,0,minute/10);

displayListChar(4,0,minute%10);

displayListChar(5,0,10);

displayListChar(6,0,second/10);

displayListChar(7,0,second%10);

}

//**********************************以上顯示時間*****************************************************