51单片机的LCD1602液晶密码锁C语言程序

void t0(void) interrupt 1 using 0

{ tcount++;

if(tcount==20)

{second++;

tcount=0;

if(second==30)

{second=0;

gg=0;

display3();

}

}

}

void display(void)

{

switch(kk)

{case 1:

write_order(0x91);

write_date(0xa3);

write_date(0xaa);

break;

case 2:

write_order(0x92);

write_date(0xa3);

write_date(0xaa);

break;

case 3:

write_order(0x93);

write_date(0xa3);

write_date(0xaa);

break;

case 4:

write_order(0x94);

write_date(0xa3);

write_date(0xaa);

break;

case 5:

write_order(0x95);

write_date(0xa3);

write_date(0xaa);

break;

case 6:

write_order(0x96);

write_date(0xa3);

write_date(0xaa);

break;

}

}

void display0(void)

{

write_order(0x80);

write_date(0xc7);

write_date(0xeb);

write_date(0xca);

write_date(0xe4);

write_date(0xc8);

write_date(0xeb);

write_date(0xc3);

write_date(0xdc);

write_date(0xc2);

write_date(0xeb);

}

void display1(void)

{

write_order(0x8a);

write_date(0xc3);

write_date(0xdc);

write_date(0xc2);

write_date(0xeb);

write_date(0xd5);

write_date(0xfd);

write_date(0xc8);

write_date(0xb7);

write_date(0xa3);

write_date(0xa1);

}

void display2(void)

{

write_order(0x8a);

write_date(0xc3);

write_date(0xdc);

write_date(0xc2);

write_date(0xeb);

write_date(0xb4);

write_date(0xed);

write_date(0xce);

write_date(0xf3);

write_date(0xa3);

write_date(0xa1);

}

void display3(void)

{

write_order(0x98);

write_date(0xca);

write_date(0xe4);

write_date(0xc8);

write_date(0xeb);

write_date(0xc3);

write_date(0xdc);

write_date(0xc2);

write_date(0xeb);

write_date(0xca);

write_date(0xb1);

write_date(0xbc);

write_date(0xe4);

write_date(0xd2);

write_date(0xd1);

write_date(0xb5);

write_date(0xb9);

}

void lcd_int(void)

{ret=0;

delay(10);

ret=1;

_nop_();

psb=1;

_nop_();

}

void functionset(void)

{

write_order(0x34);

write_order(0x30);

write_order(0x01);

write_order(0x06);

write_order(0x0c);

}

void clear_lcd(void)

{

write_order(0x01);

write_order(0x34);

write_order(0x30);

}

void write_order(uchar command)

{

delay(100);

rs=0;

rw=0;

P0=command;

en=1;

_nop_();

_nop_();

en=0;

}

void write_date(uchar date)

{

delay(100);

rs=1;

rw=0;

P0=date;

en=1;

_nop_();

_nop_();

en=0;

}