蓝桥杯c51单片机省赛温度记录器

た入场券 2022-04-04 06:54 260阅读 0赞

温度记录器

\#include <STC15F2K60S2.H>  
\#include “DS18b20.H”  
\#include <INTRINS.H>  
\#define Y(n) P2=P2&0x1F|(n<<5),P2=P2&0x1F  
unsigned char digit\[\]=\{0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xFF,0xBF,0xC6\};  
unsigned char num\[8\];  
unsigned char c;  
static unsigned long s=0;  
void buzz\_relay(char i,char j)  
\{  
if(i0&&j0)  
\{  
P0=~((1<<6)|(1<<4));  
Y(5);  
\}  
\}  
void led\_on(unsigned char n)  
\{  
if(n1)  
\{  
P0=0xFF;  
P00=0;  
Y(4);  
\}  
if(n2)  
\{  
P0=0xFF;  
P01=0;  
Y(4);  
\}  
if(n==3)  
\{  
P0=0xFF;  
P02=0;  
Y(4);  
\}

void digit0num(unsigned char a,unsigned long n)  
\{  
char i;  
for(i=7;i>=4;i–)  
\{  
num\[i\]=n%10;  
n/=10;  
\}  
num\[0\]=11;  
num\[1\]=a;  
num\[2\]=11;  
num\[3\]=10;  
\}  
void digit1num(unsigned long n)  
\{  
char i;  
for(i=6;i>=5;i–)  
\{  
num\[i\]=n%10;  
n/=10;  
\}  
num\[0\]=11;  
num\[1\]=4;  
num\[2\]=11;  
num\[3\]=10;  
num\[4\]=10;  
num\[7\]=12;

void display()  
\{  
static char i=0;

P0=0xFF;
    Y(7);
    
    P0=(1<<i);
    Y(6);
    
    P0=digit[num[i]];
    Y(7);
    
    if(++i==8)
        i=0;

\}  
unsigned short TH1\_H,TL1\_H,TH1\_L,TL1\_L;  
unsigned short W;  
bit keyflag0=0; //有时间就减  
bit keyflag1=0; //一秒一秒减

static unsigned short keycount0=0;

void timer0\_init()  
\{  
EA=1;  
ET0=1;  
ET1=1;  
TMOD=TMOD&0x00|0x11;  
TH0=(65536-2000)>>8;  
TL0=(65536-2000)&0x0F;  
TR0=1;  
TR1=0;

void timer0\_isr() interrupt 1  
\{  
TH0=(65536-2000)>>8;  
TL0=(65536-2000)&0x0F;  
display();  
if(++keycount0==500)  
\{  
keycount0=0;  
keyflag1=1;  
\}

\}  
void timer1\_isr() interrupt 3  
\{

if(P34==1)
        {
            TH1=TH1_H; 
            TL1=TL1_H;
            P34=0;
        }
        else 
        {
            TH1=TH1_L; 
            TL1=TL1_L;
            P34=1;
        }

\}  
unsigned char key\_id()  
\{  
unsigned char id=0;  
P3=P3|0x0F;  
if(P300)  
id=7;  
if(P310)  
id=6;  
if(P320)  
id=5;  
if(P330)  
id=4;  
return id;

\}  
unsigned char key\_id\_down()  
\{  
static unsigned char lastid=0;  
unsigned char thisid;  
static unsigned char ret=0;  
thisid=key\_id();  
if(lastid==0&&thisid!=0)  
ret=thisid;  
else  
ret=0;  
lastid=thisid;  
return ret;  
\}

void key\_proc(unsigned char id)  
\{

static unsigned char n=1;
    static unsigned char d=0;
    if(id==4)
    {
        n=n+1;
        if(n==4)
            n=1;                
    }
    if(id==5)
    {
        s=s+60;        
        keyflag0=1;                  
    }
    if(keyflag0==1)
    {
        if(keyflag1==1)
        {                    
            s--; 
            keyflag1=0;
            if(s==0)
            {
                keyflag0=0;  //当没时间，停止减
                TR1=0;
            }
                
        } 
               
    }
    if(id==6)
    {
        TR1=0;
        s=0;
        keyflag0=0;
        
        //led_off();
        
    
    } 
    if(id==7)
    {
        d=d+1; 
        if(d==2)
            d=0;
                 
    }
    if(d==1)
    {             
            digit1num(c);                                                                    
    }
    if(d==0)
    {
        digit0num(n,s);
    }
    if(n==1)
    { 
        led_on(n);
        W=200;
        TH1_H=(65536-W)>>8; 
        TL1_H=(65536-W)&0x00FF;
        
        TH1_L=(65536-(1000-W))>>8; 
        TL1_L=(65536-(1000-W))&0x00FF;
        TR1=1;
        
    }
    if(n==2)
    {
        led_on(n);
        W=300;
        TH1_H=(65536-W)>>8; 
        TL1_H=(65536-W)&0x00FF;
        
        TH1_L=(65536-(1000-W))>>8; 
        TL1_L=(65536-(1000-W))&0x00FF;
        TR1=1;
             
    }
    if(n==3)
    {
        led_on(n);
        W=700;
        TH1_H=(65536-W)>>8; 
        TL1_H=(65536-W)&0x00FF;
        
        TH1_L=(65536-(1000-W))>>8; 
        TL1_L=(65536-(1000-W))&0x00FF;
        TR1=1;
        
    }

int main()  
\{

buzz_relay(0,0); 
    digit0num(1,0);
    timer0_init();
    while(1)
    {          
        key_proc(key_id_down());
        c=ds18b20_read_value();  
                
    }