LCD12864串口驅動
sbit LCD_RS = P2^5; //(RS)片選 高電平有效
sbit LCD_RW = P2^6; //(RW)數據
sbit LCD_EN = P2^7; //(EN)時鐘
//*12864液晶顯示屏串口驅動程序--------------------------------------------------------*/
uchar dat;
//*寫指令到LCD------------------------------------------------------------------------*/
void lcd_wcmd(uchar com)
{
uchar i,j,k;
LCD_RS=0; LCD_RS=1;
dat=0xf8;
for(i=1;i<=8;i++)
{
LCD_RW=(bit)(dat&0x80);
LCD_EN=0; LCD_EN=1;
LCD_EN=0; dat=dat<<1;
}
dat=com; dat=dat&0xf0;
for(j=1;j<=8;j++)
{
LCD_RW=(bit)(dat&0x80);
LCD_EN=0; LCD_EN=1;
LCD_EN=0; dat=dat<<1;
}
dat=com;
dat=_cror_(dat,4);// 此為高低四位交換
dat=dat&0xf0;
for(k=1;k<=8;k++)
{
LCD_RW=(bit)(dat&0x80);
LCD_EN=0; LCD_EN=1;
LCD_EN=0; dat=dat<<1;
}
}
//*寫數據到LCD------------------------------------------------------------------------*/
void lcd_wdat(uchar com1)
{
uchar i,j,k;
LCD_RS=0; LCD_RS=1;
dat=0xfa;
for(i=1;i<=8;i++)
{
LCD_RW=(bit)(dat&0x80);
LCD_EN=0; LCD_EN=1;
LCD_EN=0; dat=dat<<1;
}
dat=com1; dat=dat&0xf0;
for(j=1;j<=8;j++)
{
LCD_RW=(bit)(dat&0x80);
LCD_EN=0; LCD_EN=1;
LCD_EN=0; dat=dat<<1;
}
dat=com1;
dat=_cror_(dat,4);// 此為高低四位交換
dat=dat&0xf0;
for(k=1;k<=8;k++)
{
LCD_RW=(bit)(dat&0x80);
LCD_EN=0; LCD_EN=1;
LCD_EN=0; dat=dat<<1;
}
} |
樓主: h333
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下載了，學習，學習。
上圖為證，只是農歷好像還不對。
