蓝桥杯单片机大赛第六届温度记录器源程序及赛题 -

#include <stc15f2k60s2.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit S4=P3^3;
sbit S5=P3^2;
sbit S6=P3^1;
sbit S7=P3^0;
sbit DQ = P1^4; //单总线接口
uchar SMG_duanma[12]={0XC0,0XF9,0XA4,0XB0,
0X99,0X92,0X82,0XF8,
0X80,0X90,0XFF,0XBF};
uchar SMG_pianxuan[8]={0X01,0X02,0X04,0X08,
0X10,0X20,0X40,0X80};
uchar SMG_huanchong[8]={10,10,10,10,10,11,0,1};
uchar SMGTIME_huanchong[8]={2,3,11,5,9,11,5,0};
uchar SMGWD_huanchong[8]={11,0,0,10,10,11,2,4};
uchar DS18B20[10]={0};
int flag,jiange_flag=1,jiange=1,qiehuan=0,cishu;
int miao=50,fen=59,xiaoshi=23,shanshuo,miao_flag,xuhao_flag;
void Delay1ms(int time) //@12.000MHz
{
unsigned char i, j;
while(time--)
{
i = 12;
j = 169;
do
{
while (--j);
} while (--i);
}
}
void Delay500us() //@12.000MHz
{
unsigned char i, j;
i = 6;
j = 211;
do
{
while (--j);
} while (--i);
}
void Delay80us() //@12.000MHz
{
unsigned char i, j;
i = 1;
j = 236;
do
{
while (--j);
} while (--i);
}
//通过单总线向DS18B20写一个字节
void Write_DS18B20(uchar dat)
{
uchar i;
for(i=0;i<8;i++)
{
DQ = 0;
DQ = dat&0x01;
Delay80us();
DQ = 1;
dat >>= 1;
}
Delay80us();
}
//从DS18B20读取一个字节
uchar Read_DS18B20()
{
uchar i;
uchar dat;
for(i=0;i<8;i++)
{
DQ = 0;
dat >>= 1;
DQ = 1;
if(DQ)
{
dat |= 0x80;
}
Delay80us();
}
return dat;
}
//DS18B20设备初始化
void init_ds18b20()
{
DQ = 0;
Delay500us();
DQ = 1;
Delay500us();
}
uchar DS18B20_qudong()
{
uchar low;
uchar high;
long temp;
init_ds18b20();
Write_DS18B20(0XCC); //忽略rom指令
Write_DS18B20(0X44); //温度转换
init_ds18b20();
Write_DS18B20(0XCC);
Write_DS18B20(0XBE); //读暂存器
low=Read_DS18B20();
high=Read_DS18B20();
temp=low>>4;
temp=temp|(high<<4);
return temp;
}
void AllInit()
{
P2=0XA0;
P0=0;
P2=0X80;
P0=0XFF;
}
void SEY_SCAN() //flag相应数字对应键盘标号
{
if(S4==0)
{
Delay1ms(3);
if(S4==0)
{
flag=4;
}
while(S4==0);
}
if(S5==0)
{
Delay1ms(3);
if(S5==0)
{
flag=5;
}
while(S5==0);
}
if(S6==0)
{
Delay1ms(3);
if(S6==0)
{
flag=6;
}
while(S6==0);
}
if(S7==0)
{
Delay1ms(3);
if(S7==0)
{
flag=7;
}
while(S7==0);
}
}
void zhixing() //执行键盘的操作
{
if(flag==4) //当s4被摁下
{
flag=0;
jiange_flag++;
if(jiange_flag==2)jiange=5;
if(jiange_flag==3)jiange=10;
if(jiange_flag==4)jiange=30;
if(jiange_flag==5)jiange=60;
if(jiange_flag==6){jiange_flag=1;jiange=1;}
SMG_huanchong[6]=jiange/10;
SMG_huanchong[7]=jiange%10;
}
if(flag==5) //当s5被摁下
{
flag=0;
qiehuan=1;
ET0=1;
}
if(flag==6)
{
flag=0;
if(cishu==10) //只有采集完十次之后才有效
{
cishu=0;
ET1=1; //开始显示温度
}
}
if(xuhao_flag==9) //摁键无效
{
if(flag==7) //初始化还原所有参数
{
flag=0;
miao=50;
fen=59;
xiaoshi=23;
qiehuan=0;
miao_flag=0;
xuhao_flag=0;
jiange=1;
ET0=0;
ET1=0;
SMGWD_huanchong[2]=0;
}
}
}
void JanGe_Display() //开机默认显示调整间隔页面 1 5 10 30s
{
int i;
for(i=0;i<8;i++)
{
P2=0XC0;
P0=SMG_pianxuan[i];
P2=0XE0;
P0=SMG_duanma[SMG_huanchong[i]];
Delay1ms(3);
}
}
void TIME_Display()
{
int i;
shanshuo++;
if(shanshuo==41)shanshuo=0;
for(i=0;i<8;i++)
{
if(i==2 | i==5)
{
if(shanshuo<20) //控制两个 - 闪烁
{
P2=0XC0;
P0=SMG_pianxuan[i];
P2=0XE0;
P0=SMG_duanma[10];
}
else
{
P2=0XC0;
P0=SMG_pianxuan[i];
P2=0XE0;
P0=SMG_duanma[11];
}
}
else
{
P2=0XC0;
P0=SMG_pianxuan[i];
P2=0XE0;
P0=SMG_duanma[SMGTIME_huanchong[i]];
}
Delay1ms(3);
}
}
void WenDu_Display()
{
int i;
shanshuo++;
if(shanshuo==41)shanshuo=0;
if(ET1==0&&xuhao_flag!=9)
{
if(shanshuo<20)
{
P2=0X80;
P0=0XFE;
}
else
{
P2=0X80;
P0=0XFF;
}
}
else
{
P2=0X80;
P0=0XFF;
}
for(i=0;i<8;i++)
{
P2=0XC0;
P0=SMG_pianxuan[i];
P2=0XE0;
P0=SMG_duanma[SMGWD_huanchong[i]];
Delay1ms(3);
}
}
void CaiJi()
{
if(miao_flag==jiange) //求余，到达一次设定时间记录一次
{
miao_flag=0;
DS18B20[cishu]=DS18B20_qudong();
cishu++;
if(cishu==10) //当温度记录到10次停止切换到温度显示界面
{
qiehuan=2;
//cishu=0;
ET0=0;
}
}
}
void Timer0Init() //5毫秒@12.000MHz
{
AUXR |= 0xC0; //定时器时钟1T模式
TMOD &= 0xFF; //设置定时器模式
TL0 = 0xA0; //设置定时初值
TH0 = 0x15; //设置定时初值
TF0 = 0; //清除TF0标志
TR0 = 1; //定时器0开始计时
EA=1;
ET0=0;
}
void Timer1Init() //5毫秒@12.000MHz
{
TL1 = 0xA0; //设置定时初值
TH1 = 0x15; //设置定时初值
TF1 = 0; //清除TF1标志
TR1 = 1; //定时器1开始计时
ET1=0;
}
void main()
{
AllInit();
Timer0Init();
Timer1Init();
while(1)
{
SEY_SCAN();
zhixing();
CaiJi();
if(qiehuan==0)
JanGe_Display();
if(qiehuan==1)
TIME_Display();
if(qiehuan==2)
WenDu_Display();
}
}
void Timer0() interrupt 1
{
uint num;
num++;
if(num==200)
……………………
…………限于本文篇幅余下代码请从51黑下载附件…………

复制代码