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//****80c52***时钟程序//***手把手教你学单片
***//**2012/9/7***23:02***# include
typedef unsigned char uint8;typedef unsigned int uint16;typedef unsigned long uint32;
uint8 block[]={0xc0,0xf9,0xa4,0xb0,0x99,
0x92,0x82,0xf8,0x80,0x90};//显示数组
uint8 a[6];
uint16 counter=0;
uint32 sec=0;
#define
tr
40
//发声值bit
MS = 1; //状态字；sbit
A
0 = P1^0; //A0****sbit
ADDR1 = P1^1; //A1*****sbit
ADDR2 = P1^2; //A2*****sbit
ADDR3 = P1^3; //E1|E2**sbit
ENLED = P1^4; //E3****38译码器sbit
BUZZ = P1^6; //
sbit keyout1 = P2^3; //按键公共端sbit
keyin1 = P2^4; //k1 长安0.1S进入时间调节；sbit
keyin2 = P2^5;
//k2 时间调节断码选择sbit
keyin3 = P2^6;
//k3 调节时间加sbit
keyin4 = P2^7; //k4 调节时间减
void refresh_LS();
//
扫描函数void timer1_int();
//定时器1中断函数void keying();
//按键读取函数void display();
//数码管显示函数void buzzer();
//
蜂鸣器发声函数void delay(uint16 n);
//延时函数
main(){
keyout1 = 0;
keyin1 = 1; keyin2 = 1; keyin3 = 1; keyin4 = 1;
ENLED = 0; ADDR3 = 1;
timer1_int();
display(); while(1)
{
if(keyin1 == 0)
{
delay(100000);
if(keyin1 == 0)
{
MS = ~MS;
buzzer();
while(!keyin1);
}
}
if(MS == 0)keying();
}
}void buzzer(){
static uint8 i=0;
for(i=0;i<tr;i++)
{
BUZZ =~BUZZ;
delay(100);
} BUZZ = 1;}void delay(uint16 n){
while(n--);}void timer1_int(){
TMOD |= 0X10;
TMOD &= 0xdf;
TH1 = 0xfc;
= 0x67;
TR1 = 1;
EA = 1;
ET1 = 1;
}void interrupt_tiner1() interrupt 3
{
TH1 = 0xfc;
TL1 = 0x67;
counter++;
if(counter == 1000)
display();
refresh_LS();}void display(){
counter = 0;
if(sec>=86400)sec=0;
a[0] = 0x7f&block[sec%10];
a[1] = block[sec/10%6];
a[2] = 0x7f&block[sec/60%10];
a[3] = block[sec/600%6];
a[4] = 0x7f&block[sec/3600%10];
a[5] = block[sec/36000%3];
if(MS ==1)sec++;
}
void keying(){
static uint8 i=0,y,y1;
if(keyin2 == 0)
{
i+=2;
if(i == 6)i=0;
delay(500);
}
else if(keyin3 == 0)
{
if(i == 0)sec++;
else
if(i == 2)sec+=60;
else
if(i == 4)sec+=3600;
delay(1000);
}
else if(keyin4 == 0)
{
if(i == 0)sec--;
else
if(i == 2)sec-=60;
else
if(i == 4)sec-=3600;
delay(500);
}
display();
if((keyin1 == 0)||(keyin2 == 0)||(keyin3 == 0)||(keyin4 == 0))buzzer();
while((keyin1 == 0)||(keyin2 == 0)||(keyin3 == 0)||(keyin4 == 0));
y = a[i];
y1 = a[i+1];
a[i] = 0xff;
a[i+1]=0xff;
delay(5000);
a[i] = y;
a[i+1]=y1;
delay(5000);}void refresh_LS(){
static uint8 j=0;
switch(j)
{
case 0: ADDR0 = 0; ADDR1 = 0; ADDR2 = 0; P0=a[0]; j++; break;
case 1: ADDR0 = 1; ADDR1 = 0; ADDR2 = 0; P0=a[1]; j++; break;
case 2: ADDR0 = 0; ADDR1 = 1; ADDR2 = 0; P0=