TINY13+HC163+18B20温度显示与控制 -

标题: TINY13+HC163+18B20温度显示与控制 [打印本页]

作者: ekun2006 时间: 2015-5-11 14:18
标题: TINY13+HC163+18B20温度显示与控制
//ICC-AVR application builder : 2012/6/19 下午 10:43:42
// Target : T13
// Crystal: 4.8000Mhz

#include <iot13v.h>
#include <macros.h>
#include "ds18b20.h"
#define CPL  PORTB &= ~(1<<PB4)
#define CPH  PORTB |=(1<<PB4)
#define DAL  PORTB &= ~(1<<PB3)
#define DAH  PORTB |=(1<<PB3)
#define FSL  PORTB &= ~(1<<PB1)
#define FSH  PORTB |=(1<<PB1)
char dsp,tdsp;
char adcdata=0;
flash char LED[]={
            0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F
//0xed,0x21,0x8f,0xab,0x63,0xea,0xee,0xa1,0xef,0xeb
};
void delay1ms(void) //误差 0us
{
   unsigned char a,b;
for(b=4;b>0;b--)
      for(a=248;a>0;a--);
}

void delay10ms(void) //误差 0us
{
unsigned char a,b;
for(b=215;b>0;b--)
      for(a=45;a>0;a--);
}
void beep(void)  //蜂鸣器响一声函数
{
  unsigned char i;
  for (i=0;i<100;i++)
{
FSH;
delay1ms();
FSL;    //BEEP取反
delay1ms();
}
for (i=0;i<100;i++)
{
FSH;
//delay1ms();
//FSL;    //BEEP取反
delay1ms();
}
}

void send(char a)
{
  char i;
  for(i=8;i>0;i--)
      {
   CPL;delay(1);
   if(a&0x80)
   {
   DAH;
   }
   else
   {
      DAL;
}

      CPH;delay(1);

   a=a<<1;
      }
}

void disp(void)
{
  //FSH;
  send(LED[dsp%10]+tdsp);
  send(LED[dsp/10]+tdsp);
  //delay(255);
  //delay(255);FSL;
}

void port_init(void)
{
PORTB = 0x00;
DDRB  = 0x1B;
}
void  adcstar(void)

{

      DIDR0=0x04;
/*

      ADMUX (ADC Multiplexer Select Register) PDF86?

      bit7  Res                ??

      bit6  REFS0             0=VCC????????;1=??????

      bit5  ADLAR             0=???;1=???(8bit??ADCH??)

      bit4:2  Res                ??

      bit1:0  MUX1,MUX0       ????,00=ADC0(PB5);01=ADC1(PB2);10=ADC2(PB4);11=ADC3 (PB3)

*/
      ADMUX=(1<<REFS0)|(0<<ADLAR)|(0<<MUX1)|(1<<MUX0);
      ADCSRA=(1<<ADEN)|(1<<ADSC)|(0<<ADATE)|(0<<ADIF)|(0<<ADIE)|(0<<ADPS2)|(1<<ADPS1)|(0<<ADPS0);

/*

      ADCSRA (ADC Control and Status Register A) PDF 87?

      bit7 ADEN ADC??=1

      bit6 ADSC ??ADC????=1

      bit5 ADATE ?????

      bit4 ADIF ADC????

      bit3 ADIE ADC????

      bit2:0 ADC ??????

*/

}
#pragma interrupt_handler eeprom_ready_isr:iv_EE_RDY
void eeprom_ready_isr(void)//内部EEPROM读写初始化
{
//eeprom ready event
}
//call this routine to initialize all peripherals
void init_devices(void)
{
//stop errant interrupts until set up
CLI(); //disable all interrupts
port_init();

MCUCR = 0x00;
TIMSK0 = 0x00; //timer interrupt sources
GIMSK = 0x00; //interrupt sources
SEI(); //re-enable interrupts
//all peripherals are now initialized
}
char key(void)
{

  if (ADCSRA&(1<<ADIF))

      {

         adcdata=ADC/4;

         ADCSRA|=(1<<ADSC)|(1<<ADIF); // ???ADC ???? ADIF?1???????1??0

      }//delay(100);
return(adcdata);
}

void main(void)
{
  char stmp,mode=0;
  init_devices();
  Init_DS18B20();
  adcstar();
  ReadTemp();
  stmp=EEPROMread(0);//读取EEPROM预设温度数据
   FSH;
// delay10ms();
//tmp=0;
while(1)
{

if(key()==0)
{
mode++;
if(mode>1)
{
mode=0;
}
while(key()==0);
}
delay10ms();

if(mode==1)
{
tdsp=0x80;
delay10ms();
if(key()==101)
{
stmp++;
if(stmp>99)
{
stmp=99;
}
EEPROMwrite(0,stmp);//向EEPROM写入预设温度数据
while(key()==101);
}
delay10ms();
if(key()==173)
{
stmp--;
if(stmp<1)
{
stmp=1;
}
EEPROMwrite(0,stmp);//向EEPROM写入预设温度数据
while(key()==173);
}
if(dsp!=stmp)
{
dsp=stmp;
disp();
}
  }
ReadTemp();
  delay10ms();
  if(mode==0)
{
tdsp=0x00;
if(tmp>stmp)
{
   beep();
   }
   else
   {
   FSH;
   }

if(dsp!=tmp)
{
dsp=tmp;
disp();
}
}
  //delay10ms();
}
}

/**************************************************************************

               THE ds18b20 LIB

File Name:    ds18b20.h

***************************************************************************/

#ifndef ds18b20_2005_4_9
#define ds18b20_2005_4_9
#define uchar unsigned char
#define DQL  PORTB &= ~(1<<PB0)
#define DQH  PORTB |=(1<<PB0)
#define DQ  PINB&(1<<PB0)
#define DO DDRB|= (1<<PB0)       //PB0定义成输出
#define DI DDRB&=~(1<<PB0)       //PB0定义成输入
uchar tmp;             //

/***********ds18b20延迟子函数（晶振12MHz ）*******/
/*
void delay_18B20(unsigned int i)
{
   unsigned char a,b;
for(b=9;b>0;b--)
      for(a=i;a>0;a--);
}
*/
void delay(unsigned char i)
{
   unsigned char a,b;
for(b=2;b>0;b--)
      for(a=i;a>0;a--);
}

/**********ds18b20初始化函数**********************/

void Init_DS18B20(void)
{
   unsigned char x=0;
   DO;
   DQH;       //拉高总线
   delay(30);
   DQL;       //单片机将DQ拉低
   delay(255);delay(50); //精确延时大于 480us
   DQH;       //拉高总线
   DI;
      if(DQ)
      {x=0;}else{x=1;}
DO;
DQL;delay(55);
DQH;       //拉高总线
delay(55);
}

/***********ds18b20读一个字节**************/

unsigned char ReadOneChar(void)
{
uchar i=0;
uchar dat = 0;
for (i=8;i>0;i--)
   {

   DO;
   DQL;    // 给脉冲信号
   delay(1);
   dat>>=1;    //数据右移一位
   DQH;
   DI;
   if(DQ)
   { dat|=0x80;} //按位或，取最高位
   delay(20);
   }
return(dat);
}

/*************ds18b20写一个字节****************/

void WriteOneChar(uchar dat)
{
unsigned char i=0;
DO;
for (i=8; i>0; i--)
{
    DQL;
delay(0);
if(dat&0x01)
{DQH;}
else
{DQL;}
delay(25);
DQH;          //上升沿将数据送入

dat>>=1;delay(1);
}//DQH;delay(1);
}

/**************读取ds18b20当前温度************/

void ReadTemp(void)
{
unsigned char a=0;
unsigned char b=0;
//unsigned char t=0;

Init_DS18B20();
WriteOneChar(0xCC); // 跳过读序号列号的操作
WriteOneChar(0x44); // 启动温度转换

delay(255);delay(150);    // this message is wery important

Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0xBE); //读取温度寄存器等（共可读9个寄存器）前两个就是温度

delay(255);delay(150);

a=ReadOneChar(); //读取温度值低位
b=ReadOneChar();    //读取温度值高位
//temp_value=b<<4;       //左移四位，扩大16倍，变为一个字节的高四位
//temp_value+=(a&0xf0)>>4;//取温度值的地位的高四位，右移四位后与温度的高四位相加得到温度值
//delay(150);
tmp=(b<<4)+((a&0xf0)>>4);
}
//void temp_to_str() //温度数据转换成液晶字符显示
//{

//tmp=temp_value;

//}
#endif

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