LCD1602顯示字符

ID:85337 · 發(fā)表于 2015-7-12 22:18

#include <reg51.h>

void WriteData(unsigned char dat);         //液晶寫數(shù)據(jù)函數(shù)
void init();                               //初始化函數(shù)
void WriteCommand(unsigned char com);                         //液晶寫命令函數(shù)
void delay(int x);

sbit RS=P2^6;
sbit RW=P2^5;
sbit E=P2^7;

unsigned char code table1[]={"  Good morning "};
unsigned char code table2[]={" *WuGuoJun*  "};

void main(void)
{
int j;
init();
while(1)
{
j=0;
while(table1[j]!='\0')
{

WriteData(table1[j]);
j++;
delay(10);
}
j=0;
WriteCommand(0x80+0x40);
while(table2[j]!='\0')
{
WriteData(table2[j]);
j++;
delay(10);
}

WriteCommand(0x01);
delay(100);

}
}

void WriteData(unsigned char dat)
{
RS=1;
RW=0;
P0=dat;
delay(10);
E=1;
delay(10);
E=0;
}

void WriteCommand(unsigned char com)
{
RS=0;
RW=0;
P0=com;
delay(10);
E=1;
delay(10);
E=0;
}

void init()
{
WriteCommand(0x38);    //設(shè)置顯示模式（16*2顯示，5*7點(diǎn)陣，8位數(shù)據(jù)）
WriteCommand(0x0c);    //開顯示，不顯示光標(biāo)，光標(biāo)不閃爍
WriteCommand(0x06); //寫一個(gè)數(shù)據(jù)，指針加一（移動(dòng)光標(biāo)）
WriteCommand(0x01);                //顯示清屏（所有顯示清零）
WriteCommand(0x80);    //設(shè)置顯示初始坐標(biāo)

}

void delay(int x)
{
int i;
while(x--)
{
for(i=0;i<200;i++);

}
}