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#include "STC15F2K60S2.H"
sbit SEL0=P2^0; //定義引腳
sbit SEL1=P2^1;
sbit SEL2=P2^2;
sbit SEL3=P2^3;
sbit beep=P3^4; //蜂鳴器引腳
sbit s1=P4^1; //步進(jìn)電機(jī)IO口
sbit s2=P4^2;
sbit s3=P4^3;
sbit s4=P4^4;
sbit key=P3^2; //開關(guān)按鍵
#define uint unsigned int //宏定義
#define ulint unsigned long
uint value=0x00; //LED顯示
uint count=0;
uint i=1; //步進(jìn)電機(jī)
bit flag=0; //開關(guān)
uint time=0; //延時(shí)
uint t=0; //執(zhí)行溫度的次數(shù)
ulint sumt=0; //溫度AD值的總和
uint date_temp;
int temp=0; //溫度值
uint abs_temp; //溫度絕對(duì)值
//設(shè)置用于顯示溫度的三個(gè)變量
uint temp_bai=0; //百位
uint temp_shi=0; //十位
uint temp_ge =0; //個(gè)位
//數(shù)碼管上顯示0-F
char segtable[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
//溫度值對(duì)應(yīng)表
int code tempdata[]={239,197,175,160,150,142,135,129,124,120,116,113,109,107,104,101,
99, 97, 95, 93, 91, 90, 88, 86, 85, 84, 82, 81, 80, 78, 77, 76,
75, 74, 73, 72, 71, 70, 69, 68, 67, 67, 66, 65, 64, 63, 63, 62,
61, 61, 60, 59, 58, 58, 57, 57, 56, 55, 55, 54, 54, 53, 52, 52,
51, 51, 50, 50, 49, 49, 48, 48, 47, 47, 46, 46, 45, 45, 44, 44,
43, 43, 42, 42, 41, 41, 41, 40, 40, 39, 39, 38, 38, 38, 37, 37,
36, 36, 36, 35, 35, 34, 34, 34, 33, 33, 32, 32, 32, 31, 31, 31,
30, 30, 29, 29, 29, 28, 28, 28, 27, 27, 27, 26, 26, 26, 25, 25,
24, 24, 24, 23, 23, 23, 22, 22, 22, 21, 21, 21, 20, 20, 20, 19,
19, 19, 18, 18, 18, 17, 17, 16, 16, 16, 15, 15, 15, 14, 14, 14,
13, 13, 13, 12, 12, 12, 11, 11, 11, 10, 10, 9, 9, 9, 8, 8, 8, 7,
7, 7, 6, 6,5, 5, 54,4, 3, 3,3, 2, 2, 1, 1, 1, 0, 0, -1, -1, -1,
-2, -2, -3, -3, -4, -4, -5, -5, -6, -6, -7, -7, -8, -8, -9, -9,
-10, -10, -11, -11, -12, -13, -13, -14, -14, -15, -16, -16, -17,
-18, -19, -19, -20, -21, -22, -23, -24, -25, -26, -27, -28, -29,
-30, -32, -33, -35, -36, -38, -40, -43, -46, -50, -55, -63, 361};
void Delay(int n); //延時(shí)函數(shù)
void weixuan(char i); //數(shù)碼管位的選擇
void SEG_Display(); //顯示溫度
void InitADC_temp(); //初始化溫度ADC
void date_processtemp();
void Delay(int n) //延時(shí)函數(shù)
{
while(n--);
}
void weixuan(char i) //數(shù)碼管位的選擇
{
SEL2=i/4;
SEL1=i%4/2;
SEL0=i%2;
}
void SEG_Display() //顯示溫度
{
//用于設(shè)置溫度的位數(shù)
SEL3=0; //數(shù)碼管點(diǎn)亮
if(temp<0)
{
P0=0;
weixuan(5); //若溫度為負(fù)，則首位顯示‘-‘
P0=0x40;
Delay(500);
}
else
{
P0=0;
weixuan(5);
P0=segtable[temp_bai];
Delay(500);
}
P0=0;
weixuan(6);
P0=segtable[temp_shi];
Delay(500);
P0=0;
weixuan(7);
P0=segtable[temp_ge];
Delay(500);
if(key==0)
{
Delay(15000); //延時(shí)10ms，按鍵消抖
if(key==0)
{
while(key==0);
flag=~flag;
}
}
if(temp>30&&flag==0)
{
beep=~beep;
switch(i++) //控制步進(jìn)電機(jī)不同IO口脈沖電平
{
case 1: s1=1;s2=0;s3=0;s4=0;break;
case 2: s1=0;s2=1;s3=0;s4=0;break;
case 3: s1=0;s2=0;s3=1;s4=0;break;
case 4: s1=0;s2=0;s3=0;s4=1;break;
}
if(i==5)
i=1;
count++;
SEL3=1; //LED燈點(diǎn)亮
P0=value; //LED發(fā)光
Delay(500);
if(count==30)
{
value=~value;
count=0;
}
}
}
void T_L()
{
P0M1=0x00; //設(shè)置P0為推挽模式，點(diǎn)亮數(shù)碼管
P0M0=0xff;
P2M1=0x00;
P2M0=0x08; //將P2^3設(shè)置為推挽模式，其余為準(zhǔn)雙向口模式
P3M1=0x00;
P3M0=0x10; //設(shè)置P3^4為推挽模式
SEL3=0; //熄滅LED燈
IE=0xa8; //EA=1打開總中斷，EADC=1允許A/D轉(zhuǎn)化中斷，ET1=1允許T1中斷
TMOD=0x10; //使用定時(shí)器1，16位不可重裝載模式，TH1、TL1全用
TH1=(65535-40000)/256;//高8位賦初值，定時(shí)40000周期
TL1=(65535-40000)%256;//低8位賦初值
TR1=1; //啟動(dòng)定時(shí)器1
beep=0;
while(1)
{
SEG_Display();
}
}
void InitADC_temp() //初始化溫度ADC
{
P1ASF=0xff; //將P1口作為模擬功能A/D使用
ADC_RES=0; //寄存器ADC_RES和ADC_RESL保存A/D轉(zhuǎn)化結(jié)果
ADC_RESL=0; //初始賦值0
ADC_CONTR=0x8b; //ADC_POWER=1打開A/D轉(zhuǎn)換器電源;ADC_START=1啟動(dòng)模擬轉(zhuǎn)換器ADC;CHS=011選擇P1^3作為A/D輸入使用
CLK_DIV=0x20; //ADRJ=1：ADC_RES[1:0]存放高2位ADC結(jié)果，ADC_RESL[7:0]存放低8位ADC結(jié)果
}
//分別取出溫度的百位、十位、個(gè)位
void date_processtemp()
{
if(temp<0)
abs_temp=-temp;
else
abs_temp=temp;
temp_bai=abs_temp%1000/100;
temp_shi=abs_temp%100/10;
temp_ge =abs_temp%10;
}
void Timer1_Routine() interrupt 3 //3為定時(shí)器1中斷編號(hào)
{
IE=0x00; //關(guān)閉總中斷
TR1=0; //定時(shí)器1停止
TH1=(65535-40000)/256;//重新賦值
TL1=(65535-40000)%256;
InitADC_temp(); //初始化溫度
IE=0xa8; //打開總中斷
TR1=1; //啟動(dòng)定時(shí)器1
}
//AD中斷
void adc_isr() interrupt 5 using 1
{
time++;
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