adc0809温度源程序 STC15F2K60S2单片机 -

#include "STC15F2K60S2.H"
sbit SEL0=P2^0; //定义引脚
sbit SEL1=P2^1;
sbit SEL2=P2^2;
sbit SEL3=P2^3;
sbit beep=P3^4; //蜂鸣器引脚
sbit s1=P4^1; //步进电机IO口
sbit s2=P4^2;
sbit s3=P4^3;
sbit s4=P4^4;
sbit key=P3^2; //开关按键
#define uint unsigned int //宏定义
#define ulint unsigned long
uint value=0x00; //LED显示
uint count=0;
uint i=1; //步进电机
bit flag=0; //开关
uint time=0; //延时
uint t=0; //执行温度的次数
ulint sumt=0; //温度AD值的总和
uint date_temp;
int temp=0; //温度值
uint abs_temp; //温度绝对值
//设置用于显示温度的三个变量
uint temp_bai=0; //百位
uint temp_shi=0; //十位
uint temp_ge =0; //个位
//数码管上显示0-F
char segtable[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
//温度值对应表
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); //延时函数
void weixuan(char i); //数码管位的选择
void SEG_Display(); //显示温度
void InitADC_temp(); //初始化温度ADC
void date_processtemp();
void Delay(int n) //延时函数
{
while(n--);
}
void weixuan(char i) //数码管位的选择
{
SEL2=i/4;
SEL1=i%4/2;
SEL0=i%2;
}
void SEG_Display() //显示温度
{
//用于设置温度的位数
SEL3=0; //数码管点亮
if(temp<0)
{
P0=0;
weixuan(5); //若温度为负，则首位显示‘-‘
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); //延时10ms，按键消抖
if(key==0)
{
while(key==0);
flag=~flag;
}
}
if(temp>30&&flag==0)
{
beep=~beep;
switch(i++) //控制步进电机不同IO口脉冲电平
{
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灯点亮
P0=value; //LED发光
Delay(500);
if(count==30)
{
value=~value;
count=0;
}
}
}
void T_L()
{
P0M1=0x00; //设置P0为推挽模式，点亮数码管
P0M0=0xff;
P2M1=0x00;
P2M0=0x08; //将P2^3设置为推挽模式，其余为准双向口模式
P3M1=0x00;
P3M0=0x10; //设置P3^4为推挽模式
SEL3=0; //熄灭LED灯
IE=0xa8; //EA=1打开总中断，EADC=1允许A/D转化中断，ET1=1允许T1中断
TMOD=0x10; //使用定时器1，16位不可重装载模式，TH1、TL1全用
TH1=(65535-40000)/256;//高8位赋初值，定时40000周期
TL1=(65535-40000)%256;//低8位赋初值
TR1=1; //启动定时器1
beep=0;
while(1)
{
SEG_Display();
}
}
void InitADC_temp() //初始化温度ADC
{
P1ASF=0xff; //将P1口作为模拟功能A/D使用
ADC_RES=0; //寄存器ADC_RES和ADC_RESL保存A/D转化结果
ADC_RESL=0; //初始赋值0
ADC_CONTR=0x8b; //ADC_POWER=1打开A/D转换器电源;ADC_START=1启动模拟转换器ADC;CHS=011选择P1^3作为A/D输入使用
CLK_DIV=0x20; //ADRJ=1：ADC_RES[1:0]存放高2位ADC结果，ADC_RESL[7:0]存放低8位ADC结果
}
//分别取出温度的百位、十位、个位
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为定时器1中断编号
{
IE=0x00; //关闭总中断
TR1=0; //定时器1停止
TH1=(65535-40000)/256;//重新赋值
TL1=(65535-40000)%256;
InitADC_temp(); //初始化温度
IE=0xa8; //打开总中断
TR1=1; //启动定时器1
}
//AD中断
void adc_isr() interrupt 5 using 1
{
time++;
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