#include<reg52.h>
#include<intrins.h>
#include "i2c.h"
sbit RS = P2^6;
sbit RW = P2^5;
sbit EN = P2^7;
sbit Beep = P3^0;
#define GPIO_KEY P1
#define RS_CLR RS=0
#define RS_SET RS=1
#define RW_CLR RW=0
#define RW_SET RW=1
#define EN_CLR EN=0
#define EN_SET EN=1
#define DataPort P0
char hour,min,sec;
unsigned int kkk;
unsigned char flag = 1;
unsigned char num = 0;
unsigned char local = 0;
unsigned char weizhi;
unsigned char KeyValue;
char clhour,clmin,clsec,clock = 0;
unsigned char KeyScan(void);
void DelayUs2x(unsigned char t)
{
while(--t);
}
void DelayMs(unsigned char t)
{
while(t--)
{
DelayUs2x(245);
DelayUs2x(245);
}
}
bit LCD_Check_Busy(void)
{
DataPort= 0xFF;
RS_CLR;
RW_SET;
EN_CLR;
_nop_();
EN_SET;
return (bit)(DataPort & 0x80);
}
void LCD_Write_Com(unsigned char com)
{
DelayMs(5);
RS_CLR;
RW_CLR;
EN_SET;
DataPort= com;
_nop_();
EN_CLR;
}
void LCD_Write_Data(unsigned char Data)
{
DelayMs(5);
RS_SET;
RW_CLR;
EN_SET;
DataPort= Data;
_nop_();
EN_CLR;
}
void LCD_Clear(void)
{
LCD_Write_Com(0x01);
DelayMs(5);
}
void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s)
{
if (y == 0)
{
LCD_Write_Com(0x80 + x);
}
else
{
LCD_Write_Com(0xC0 + x);
}
while (*s)
{
LCD_Write_Data( *s);
s ++;
}
}
void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data)
{
if (y == 0)
{
LCD_Write_Com(0x80 + x);
}
else
{
LCD_Write_Com(0xC0 + x);
}
LCD_Write_Data( Data);
}
void LCD_Init(void)
{
LCD_Write_Com(0x38);
DelayMs(5);
LCD_Write_Com(0x38);
DelayMs(5);
LCD_Write_Com(0x38);
DelayMs(5);
LCD_Write_Com(0x38);
LCD_Write_Com(0x08);
LCD_Write_Com(0x01);
LCD_Write_Com(0x06);
DelayMs(5);
LCD_Write_Com(0x0C);
}
void Delay(unsigned char i)
{
while(i--);
}
void main(void)
{
LCD_Init();
TMOD = 0x01;
TH0 = 0x3c;
TL0 = 0xb0;
EA = 1;
ET0 = 1;
TR0 = 1;
hour = 12;
min = 59;
sec = 55;
while(1)
{
num = KeyScan();
if(num == 1)
{
flag = 0;
}
if(num == 2)
{
flag = 1;
}
if(num == 3)
{
local++;
if(local == 6)
{
local = 0;
}
switch(local)
{
case 5:
LCD_Write_Char(14,0,' ');
DelayMs(50);
break;
case 4:
LCD_Write_Com(0x01);
LCD_Write_String(2,1,"change sec10");
break;
case 3:
LCD_Write_Com(0x01);
LCD_Write_String(2,1,"change min01");
break;
case 2:
LCD_Write_Com(0x01);
LCD_Write_String(2,1,"change min10");
break;
case 1:
LCD_Write_Com(0x01);
LCD_Write_String(2,1,"change hou01");
break;
case 0:
LCD_Write_Com(0x01);
LCD_Write_String(2,1,"change hou10");
break;
}
}
if(num == 4)
{
if(clock == 0)
{
switch(local)
{
case 5:sec++;
if(sec >= 60)
{
min++;
sec = 0;
}break;
case 4:sec += 10;
if(sec >= 60)
{
min++;
sec = 0;
}break;
case 3:min++;
if(min >= 60)
{
hour++;
min = 0;
}break;
case 2:min += 10;
if(min >= 60)
{
hour++;
min = 0;
}break;
case 1:hour++;
if(hour >= 24)
{
sec = 0;
min = 0;
hour = 0;
}break;
case 0:hour += 10;
if(hour >= 24)
{
sec = 0;
min = 0;
hour = 0;
}break;
}
}
else if(clock == 1)
{
switch(local)
{
case 5:clsec++;
if(clsec >= 60)
{
clmin++;
clsec = 0;
}break;
case 4:clsec += 10;
if(clsec >= 60)
{
clmin++;
clsec = 0;
}break;
case 3:clmin++;
if(clmin >= 60)
{
clhour++;
clmin = 0;
}break;
case 2:clmin += 10;
if(clmin >= 60)
{
clhour++;
clmin = 0;
}break;
case 1:clhour++;
if(clhour >= 24)
{
clsec = 0;
clmin = 0;
clhour = 0;
}break;
case 0:clhour += 10;
if(clhour >= 24)
{
clsec = 0;
clmin = 0;
clhour = 0;
}break;
}
}
}
if(num == 5)
{
if(clock == 0)
{
switch(local)
{
case 5:sec--;
if(sec <= 0)
{
min--;
sec = 0;
}break;
case 4:sec -= 10;
if(sec <= 0)
{
min--;
sec = 0;
}break;
case 3:min--;
if(min <= 0)
{
hour--;
min = 59;
}break;
case 2:min -= 10;
if(min <= 0)
{
hour--;
min = 59;
}break;
case 1:hour--;
if(hour <= 0)
{
sec = 0;
min = 0;
hour = 0;
}break;
case 0:hour -= 10;
if(hour <= 0)
{
sec = 0;
min = 0;
hour = 0;
}break;
}
}
else if(clock == 1)
{
switch(local)
{
case 5:clsec--;
if(clsec <= 0)
{
clmin--;
clsec = 0;
}break;
case 4:clsec -= 10;
if(clsec <= 0)
{
clmin--;
clsec = 0;
}break;
case 3:clmin--;
if(clmin <= 0)
{
clhour--;
clmin = 59;
}break;
case 2:clmin -= 10;
if(clmin <= 0)
{
clhour--;
clmin = 59;
}break;
case 1:clhour--;
if(clhour <= 0)
{
clsec = 0;
clmin = 0;
clhour = 0;
}break;
case 0:clhour -= 10;
if(clhour <= 0)
{
clsec = 0;
clmin = 0;
clhour = 0;
}break;
}
}
}
if(num == 6)
{
clock = 1;
}
if(num == 7)
{
clock = 0;
}
if(clock == 0)
{
LCD_Write_String(0,0,"time :");
LCD_Write_Char(7,0,(hour/10)+ '0');
LCD_Write_Char(8,0,(hour%10)+ '0');
LCD_Write_Char(9,0,':');
LCD_Write_Char(10,0,(min/10)+ '0');
LCD_Write_Char(11,0,(min%10)+ '0');
LCD_Write_Char(12,0,':');
LCD_Write_Char(13,0,(sec/10)+ '0');
LCD_Write_Char(14,0,(sec%10)+ '0');
}
else
{
LCD_Write_String(0,0,"clock :");
LCD_Write_Char(7,0,(clhour/10)+ '0');
LCD_Write_Char(8,0,(clhour%10)+ '0');
LCD_Write_Char(9,0,':');
LCD_Write_Char(10,0,(clmin/10)+ '0');
LCD_Write_Char(11,0,(clmin%10)+ '0');
LCD_Write_Char(12,0,':');
LCD_Write_Char(13,0,(clsec/10)+ '0');
LCD_Write_Char(14,0,(clsec%10)+ '0');
}
if(sec >= 60)
{
sec = 0;
min++;
for(kkk = 0;kkk < 1000;kkk++)
{
Beep = !Beep;
Delay(50);
}
}
if(min >= 60)
{
min = 0;
hour++;
}
if(hour >= 24)
{
hour = 0;
min = 0;
sec = 0;
}
if((hour == clhour) && (min == clmin) && (sec == clsec))
{
for(kkk == 0;kkk < 500;kkk++)
{
Beep = !Beep;
Delay(50);
}
}
}
}
void ISR_T0(void) interrupt 1
{
unsigned char i;
TH0 = 0x3c;
TL0 = 0xb0;
if(flag == 1)
{
i++;
if(i == 20)
{
i = 0;
sec++;
}
}
}
unsigned char KeyScan(void)
{
char a = 0;
GPIO_KEY=0x0f;
if(GPIO_KEY!=0x0f)
{
DelayMs(10);
if(GPIO_KEY!=0x0f)
{
GPIO_KEY=0X0F;
switch(GPIO_KEY)
{
case(0X07): KeyValue=1;break;
case(0X0b): KeyValue=5;break;
case(0X0d): KeyValue=9;break;
case(0X0e): KeyValue=13;break;
}
GPIO_KEY=0XF0;
switch(GPIO_KEY)
{
case(0X70): KeyValue=KeyValue+3;break;
case(0Xb0): KeyValue=KeyValue+2;break;
case(0Xd0): KeyValue=KeyValue+1;break;
case(0Xe0): KeyValue=KeyValue;break;
}
while((a<50) && (GPIO_KEY!=0xf0))
{
DelayMs(10);
a++;
}
return KeyValue;
}
}
}
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