#include <stdio.h>
#include <string.h>
unsigned char one[2] = "A";
unsigned char one1[2] = "B";
unsigned char one12[2] = "c";
void lcd_init(void)
{
P7 = 0x00; //E=0,RS=0
P7 = 0x03;
P7 = 0x23; //E=1,RS=0
delay_micro(100);
P7 = 0x03; //E=0,RS=0
delay_msec(5);
P7 = 0x23; //E=1,RS=0
delay_micro(100);
P7 = 0x03; //E=0,RS=0
delay_msec(5);
P7 = 0x23; //E=1,RS=0
delay_micro(100);
P7 = 0x03; //E=0,RS=0
lcd_cout(0x02); //for 4-bit lcd intialization
delay_msec(5);
lcd_cout(0x28);
delay_msec(5);
lcd_cout(0x0C);
delay_msec(5);
}
int lcd_cout(unsigned char ccod) //for Lcd command
{
unsigned char ccod_msb;
unsigned char ccod_lsb;
ccod_msb = ccod / 0x10;
ccod_lsb = ccod & 0x0F;
P7 = ccod_msb;
P7 = ccod_msb | 0x20;
delay_micro(2);
P7 = ccod_msb;
delay_micro(2);
P7 = ccod_lsb;
P7 = ccod_lsb | 0x20;
delay_micro(2);
P7 = ccod_lsb;
delay_micro(50);
return 0;
}
int lcd_dout(unsigned char dcod) //for lcd_Data
{
unsigned char dcod_msb;
unsigned char dcod_lsb;
dcod_msb = dcod / 0x10;
dcod_lsb = dcod & 0x0F;
P7 = dcod_msb | 0x10;
P7 = dcod_msb | 0x30;
delay_micro(2);
P7 = dcod_msb | 0x10;
delay_micro(2);
P7 = dcod_lsb | 0x10;
P7 = dcod_lsb | 0x30;
delay_micro(2);
P7 = dcod_lsb | 0x10;
delay_micro(50);
}
void main()
{
while (1)
{
lcd_init();
display1();
}
}
void display1(void)
{
write_string(0, 7, one);
delay_msec(100);
write_string(1, 0, one1);
delay_msec(100);
write_string(1, 7, one12);
delay_msec(100);
}
void write_string(uint_fast8_t row, uint_fast8_t col, unsigned const char *str) {
int x,y;
if (row)
{
col |= 0x40;
}
col |= 0x80;
lcd_cout (col);
for (x=0; x!=0; x++) {
lcd_dout(one[x]);
delay_msec(5);
lcd_dout(one1[x]);
delay_msec(5);
lcd_dout(one12[x]);
}
}