📄 news02.c
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#include <reg51.h>//加载头文件
#include <intrins.H>//装载
#define uchar unsigned char//变量类型的宏定义
#define uint unsigned int//变量类型的宏定义
#define SET 5
#define MON 4
#define DAY 3
#define HOU 2
#define MIN 1
#define PCF8583 0XA0
#define _Nop() _nop_() /*定义空指令*/
sbit SDA=P1^7; /*模拟I2C数据传送位*/
sbit SCL=P1^6; /*模拟I2C时钟控制位*/
/*状态标志*/
bit ack; /*应答标志位*/
uchar SEG7[10]={0x03,0x9f,0x25,0x0d,0x99,0x49,0x41,0x1f,0x01,0x09};/*0~9的数码管段码*/
uchar act[12]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x04,0x08,0x10,0x20};//12位数码管位码；
uchar MS,mon,day,hou,min,sec;
uchar key;
uchar discnt;
uint cnt,time_cnt;
uchar first;
sbit MSKEY=P0^5; /*功能键标志*/
sbit MONKEY=P0^4;//月按键
sbit DAYKEY=P0^3;//天按键
sbit HOUKEY=P0^2;//时按键
sbit MINKEY=P0^1;//分按键
//sbit CHECKKEY=P3^0;//查询按键
sbit CLK=P1^0;
sbit DATA=P1^1;
void TIMERIni(void);
void menu(void);
void delay(uint k);
void keyboard(void);
void send164(uchar m);
void dis_time(uchar m);
void dis_adjtime(uchar m);
uchar IRcvByte(uchar sla,uchar suba);
bit ISendByte(uchar sla,uchar suba,uchar c);
void Ack_I2c(bit a);
uchar RcvByte(void);
void SendByte(uchar c);
void Stop_I2c(void);
void Start_I2c(void);
uchar convert_BCD(uchar i)
{
uchar i1,i2;
i1=i%10;
i2=i/10;
i2=i2<<4;
i=i2+i1;
return i;
}
void menu(void)//扫描按键子函数
{
uchar i;
if(key==SET)
{MS++;
/*if(first==0)
{
ISendByte(PCF8583, 0X00,0x80);first=1;
}*/
if(MS==2)
{
MS=0;
/* i=convert_BCD(min);
ISendByte(PCF8583, 0X03,i);
i=convert_BCD(hou);
ISendByte(PCF8583, 0X04, i);
i=convert_BCD(day);
ISendByte(PCF8583, 0x05, i);
i=convert_BCD(mon);
ISendByte(PCF8583, 0x06, i);
ISendByte(PCF8583, 0X00,0x00);
//;*/
}
}// 调整模式
if(MS==1)
{
switch(key)
{
case (MIN):
{ ISendByte(PCF8583, 0X00,0x00);
min++;if(min>=60) min=0;
i=convert_BCD(min);
ISendByte(PCF8583, 0X03,i);
}break;
case (HOU):
{ ISendByte(PCF8583, 0X00,0x00);
hou++;if(hou>23) hou=0;
i=convert_BCD(hou);
ISendByte(PCF8583, 0X04, i);
} break;
case(DAY):
{ ISendByte(PCF8583, 0X00,0x00);
day++;if(day>31) day=1;
i=convert_BCD(day);
ISendByte(PCF8583, 0x05, i);
}break;
case(MON):
{
ISendByte(PCF8583, 0X00,0x00);
mon++;if(mon>12) mon=1;
i=convert_BCD(mon);
ISendByte(PCF8583, 0x06, i);
}break;
default:break;
}
}
key=0;
}
void delay(uint k)
{
uint i,j;
for(i=0;i<k;i++)
{
for(j=0;j<1000;j++) ;
}
}
void keyboard(void)
{
P0=0X3F;
if((P0&0x02)==0)
{ delay(5);
while((P0&0x02)==0);
key=MIN;
}
else
if((P0&0x04)==0)
{
delay(5);
while((P0&0x04)==0);
key=HOU;
}
else
if((P0&0x08)==0)
{
delay(5);
while((P0&0x08)==0);
key=DAY;
}
else
if((P0&0x10)==0)
{
delay(5);
while((P0&0x10)==0);
key=MON;
}
else
if((P0&0x20)==0)
{
delay(5);
while((P0&0x20)==0);
key=SET;
}
}
void time0(void) interrupt 1
{
TH0=0xF4;TL0=0x48;
if(discnt>11)discnt=0;// 显示为12位数码管
if(cnt>200)cnt=0;// 调整时的闪烁周期
switch(MS)
{
case 0:{dis_time(discnt);}break;// 显示走时
case 1:{dis_adjtime(discnt);}break;// 显示调时
default: break;
}
discnt++;cnt++;
}
void time1(void) interrupt 3 //50ms
{uchar temp1,temp2,temp;
TH1=0X3C;TL1=0XAF;
time_cnt++;
if(time_cnt>=20) // 1秒钟计时时间到，读PCF8583的各寄存器的值
{
time_cnt=0;
temp=IRcvByte(PCF8583, 0X02);
temp1=(temp/16)&0x0f;temp2=temp&0x0f;
sec=temp1*10+temp2;
temp=IRcvByte(PCF8583, 0X03);
temp1=temp>>4;temp2=temp&0x0f;
min=temp1*10+temp2;
temp=IRcvByte(PCF8583, 0X04);
temp1=(temp>>4)&0x03;temp2=temp&0x0f;
hou=temp1*10+temp2;
temp=IRcvByte(PCF8583, 0X05);
temp1=(temp>>4)&0x03;;temp2=temp&0x0f;
day=temp1*10+temp2;
temp=IRcvByte(PCF8583, 0X06);
temp1=(temp>>4)&0x01;temp2=temp&0x0f;
mon=temp1*10+temp2;
}
}
void send164(uchar m)
{uchar k,i,b;
k=SEG7[m];
i=8;
CLK=0;
while (i--)
{b=k>>i;
if((b&0x01)==0x01)DATA=1;//判断b的最低位的值是多少
else DATA=0;
CLK=1; _nop_();
CLK=0;
}
}
//P2 KOU //P1kou
void dis_time(uchar m)
{
P1&=0XC3;/// 等价于 P1=P1&0xc3；；准备送段码 ，位码口全部清零
P2=0X00;////准备送段码，位码口全部清零
{switch(m)
{case 0:{send164(mon/10);P2|=act[m];P1&=0XC3;}break;
case 1:{send164(mon%10);P2|=act[m];P1&=0XC3;}break;
case 2:{send164(day/10);P2|=act[m];P1&=0XC3;}break;
case 3:{send164(day%10);P2|=act[m];P1&=0XC3;}break;
case 4:{send164(hou/10);P2|=act[m];P1&=0XC3;}break;
case 5:{send164(hou%10);P2|=act[m];P1&=0XC3;}break;
case 6:{send164(min/10);P2|=act[m];P1&=0XC3;}break;
case 7:{send164(min%10);P2|=act[m];P1&=0XC3;}break;
case 8:{send164(sec/10);P1|=act[m];P2=0X00;}break;
case 9:{send164(sec%10);P1|=act[m];P2=0X00;}break;
case 10:{send164(0);P1|=act[m];P2=0X00;}break;
case 11:{send164(0);P1|=act[m];P2=0X00;}break;
default:break;}
}
}
void dis_adjtime(uchar m)
{
if(cnt>100)
{
P1&=0XC3;
P2=0X00;
switch(m)
{case 0:{send164(mon/10);P2|=act[m];P1&=0XC3;}break;
case 1:{send164(mon%10);P2|=act[m];P1&=0XC3;}break;
case 2:{send164(day/10);P2|=act[m];P1&=0XC3;}break;
case 3:{send164(day%10);P2|=act[m];P1&=0XC3;}break;
case 4:{send164(hou/10);P2|=act[m];P1&=0XC3;}break;
case 5:{send164(hou%10);P2|=act[m];P1&=0XC3;}break;
case 6:{send164(min/10);P2|=act[m];P1&=0XC3;}break;
case 7:{send164(min%10);P2|=act[m];P1&=0XC3;}break;
case 8:{send164(0);P1&=act[m];P2=0X00;}break;
case 9:{send164(0);P1&=act[m];P2=0X00;}break;
case 10:{send164(0);P1&=act[m];P2=0X00;}break;
case 11:{send164(0);P1&=act[m];P2=0X00;}break;
default:break;
}
}
else
{
P1&=0XC3;
P2=0X00;
}
}
void TIMERIni(void)
{
TMOD=0X11;
TH0=0xF4;TL0=0x48;TH1=0X3C;TL1=0XAF;
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