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//#include <reg51.H>
#include <STC12C5A60S2.H>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
#define FOSC 11059200L
uint MAX6675_Temper;
unsigned char EC11_Dir = 0;//方向標(biāo)志
unsigned char TestValue = 0;
sbit PIN_EC11_A = P1^6;
sbit PIN_EC11_B = P1^4;
sbit PIN_EC11_c = P1^5;
sbit PIN_EC11_key = P1^7;
sbit P2_0 = P2^0;
sbit P2_1 = P2^1;
sbit P2_2 = P2^2;
sbit P2_3 = P2^3;
sbit sh=P3^0;
sbit st=P3^1;
sbit oe=P3^2;
sbit ds=P3^3;
sbit MAX6675_CS = P3^5;
sbit MAX6675_CLK = P3^6;
sbit MAX6675_DAT = P3^4;
sbit jiare = P3^7;
sbit beep = P0^1;
bit wdbg;//設(shè)定溫度變更標(biāo)志位
uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x80};
uint num;
uint shedingwd,sdjs;
uint shijiwd;
void Delay2us() //@11.0592MHz
{
unsigned char i;
_nop_();
_nop_();
i = 2;
while (--i);
}
void Delay2ms() //@11.0592MHz
{
unsigned char i, j;
i = 22;
j = 128;
do
{
while (--j);
} while (--i);
}
void Timer0Init(void) //1毫秒@11.0592MHz
{
//TMOD &= 0xF0; //設(shè)置定時器模式
TMOD &= 0xF0; //設(shè)置定時器模式
TMOD |= 0x01; //設(shè)置定時器模式
TL0 = 0x91; //設(shè)置定時初始值
TH0 = 0xFF; //設(shè)置定時初始值
TF0 = 0; //清除TF0標(biāo)志
TR0 = 1; //定時器0開始計時
}
void Timer1Init(void) //1毫秒@11.0592MHz
{
AUXR |= 0x40; //定時器時鐘1T模式
TMOD &= 0x0F; //設(shè)置定時器模式
TL1 = 0xCD; //設(shè)置定時初始值
TH1 = 0xD4; //設(shè)置定時初始值
TF1 = 0; //清除TF1標(biāo)志
TR1 = 1; //定時器1開始計時
}
void HC595SendData(unsigned char Data)
{
unsigned char i;
st=0;
sh=0;
for(i=0;i<8;i++)
{
ds=Data&0x80;
Data=Data<<1;
sh=1;
sh=0;
}
st=1;
st=0;
}
uint MAX6675_ReadDat()
{
uint d;
uchar i;
MAX6675_CS=0;
MAX6675_CLK=0;
Delay2us();
for(i=0;i<16;i++)
{
d<<=1;
Delay2us();
MAX6675_CLK=1;
if(MAX6675_DAT)
d++;
Delay2us();
MAX6675_CLK=0;
}
MAX6675_CS=1;
return d;
}
void MAX6675_ReadTemper()
{
uint d;
d=MAX6675_ReadDat();//讀取MAX6675當(dāng)前的溫度值
MAX6675_Temper=((d>>3)&0x0fff)*0.25;
}
void display(void);
void _ec11_drives(void);
uint a,b;
void delay(uchar t) // 延時函數(shù)
{
uchar t1;
unsigned long t2;
for(t1=0;t1<t;t1++)
{
for(t2=0;t2<b;t2++);
}
}
uint sd;
void beep2()
{
b=11;
for(a=0;a<300;a++)
{
beep=~beep;
delay(1);
}
}
/***************************************/
/***************************************/
/***************************************/
void main()
{
b=25;
for(a=0;a<600;a++)
{
beep=~beep;
delay(1);
}
b=20;
for(a=0;a<850;a++)
{
beep=~beep;
delay(1);
}
b=15;
for(a=0;a<1000;a++)
{
beep=~beep;
delay(1);
}
beep=1;
Timer0Init();
Timer1Init();
EA=1;
ET0=1;
oe=0;
shedingwd=20;
jiare=1;
PIN_EC11_c = 0;
sd=shedingwd;
while(1)
{
if(wdbg==1)
{
ET1=1;
num=shedingwd;
}
else
{
num= MAX6675_Temper;
}
if(MAX6675_Temper+2<shedingwd)
jiare=0;
else
jiare=1;
display();
if(!PIN_EC11_key)
shedingwd=100;
if(shedingwd>=280)
shedingwd=280;
if(shedingwd<=10)
shedingwd=10;
if(sd!=shedingwd)
{beep2();
sd=shedingwd;
beep=1;
}
}
}
void time0(void) interrupt 1
{
uint i;
TL0 = 0x91; //設(shè)置定時初始值
TH0 = 0xFF; //設(shè)置定時初始值
_ec11_drives();
i++;
if(i==5000)
{i=0;
MAX6675_ReadTemper();
}
}
void time1(void) interrupt 3
{
uint j,k;
TL1 = 0xCD; //設(shè)置定時初始值
TH1 = 0xD4; //設(shè)置定時初始值
if(k++>1000)
{
k=0;
sdjs++;
j++;
}
if(j<3)
oe=1;
else
oe=0;
if(j>5)
j=0;
if(sdjs>30)
{
sdjs=0;
ET1=0;
wdbg=0;
oe=0;
}
}
void display(void)
{
HC595SendData(table[num%10]);
P2_3=0;
Delay2ms();
P2_3=1;
HC595SendData(table[num%100/10]);
P2_2=0;
Delay2ms();
P2_2=1;
HC595SendData(table[num%1000/100]);
P2_1=0;
Delay2ms();
P2_1=1;
HC595SendData(table[num/1000]);
P2_0=0;
Delay2ms();
P2_0=1;
}
void _ec11_drives(void)//中斷10us中調(diào)用
{
static unsigned char CheckCnt,EC11Status=0;
if(PIN_EC11_A)
{
if(++CheckCnt > 10)//在中斷中調(diào)用值為2即可，快速掃描，適當(dāng)加長可提高防抖效果。
{
CheckCnt = 12;
if(EC11Status==0)
{
if(PIN_EC11_B)
{
EC11_Dir = 0x55;
shedingwd-=5;
}
}
EC11Status =1;
}
}
else
{
wdbg=1;sdjs=0;
if(CheckCnt)
{
CheckCnt--;
}
else
{
if(EC11Status)
{
EC11Status=0;
if(PIN_EC11_B)
{
EC11_Dir = 0xaa;
shedingwd+=5;
}
}
}
}
}

復(fù)制代碼