?? 1602main.c
字號:
#include <reg51.h>
#include <string.h>
#define uchar unsigned char
#define uint unsigned int
sbit RS=P3^0;
sbit RW=P3^1;
sbit E=P3^2;
uchar code table[]=" Pathfinder";
delay_ms(int ms)
{uchar i;
uint j;
for(j=2*ms;j>0;j--)
for(i=250;i>0;i--);
}
void write_cmd(uchar cmd)
{
RS=0;
RW=0;
E=0;
P2=cmd;
delay_ms(2);
E=1;
delay_ms(2);
E=0;
}
void write_data(uchar d)
{
RS=1;
RW=0;
E=0;
P2=d;
delay_ms(2);
E=1;
delay_ms(2);
E=0;
}
void init_lcd()
{
write_cmd(0x38);
write_cmd(0x0f);//不顯示光標
write_cmd(0x06);//指針自加一,整屏顯示不移動
write_cmd(0x01);//清屏
}
void lcd_display_xy(char *string , uchar x, uchar y)
{ uchar i;
write_cmd(0x80+0x40*y+x);
for (i=0;i<strlen(string);i++)
write_data(string[i]);
}
void main()
{
init_lcd();
lcd_display_xy("abc",2,0);
lcd_display_xy("efghij",0,1);
delay_ms(500);
write_cmd(0x07);
write_cmd(0x80+0x0);
write_data('a');
delay_ms(500);
write_cmd(1);
while(1);
}
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