ii.c

完整的电波钟源码,采用MSC51单片机,C语言编写的高质量程序!

#include "c8051F330.h"  
#include "define.h"  

#ifndef 	IIC_C
#define 	IIC_C
#endif

#include <math.h>
#define MaxPress 1100 //1100Hpa
#define DELAY10US 2

long float MiddleData1;
long float MiddleData2;
long float MiddleData3;
long float MiddleData4;
//function declaration

void IIC_ReadCalData(void);
void ReadTemperaturePreesureAD(void);
unsigned int IIC_ReadTempretureAD(void);
unsigned int IIC_ReadPressureAD(void);
void CalculatePressTemp(void);
void CalculateAltitude(void);

void IIC_ReadCalData(void);
unsigned char IIC_ReadByte(void);
void IIC_WriteByte( unsigned char);
void IIC_Start(void);
void IIC_Stop(void);
void IIC_ACK(void);
void IIC_NoAck(void);
void IIC_SDA_HIGH(void);
void IIC_SDA_LOW(void);
void IIC_SCL_HIGH(void);
void IIC_SCL_LOW(void);
void IIC_XCLR_LOW(void);
void IIC_XCLR_HIGH(void);
void SysDelay2ms(unsigned int);
void SysDelay(unsigned int);

 unsigned int xdata C1 ;
 unsigned int xdata C2 ;
 unsigned int xdata C3 ;
 unsigned int xdata C4 ;
 unsigned int xdata C5 ;
 unsigned int xdata C6 ;
 unsigned int xdata C7 ;
 unsigned char xdata AA;
 unsigned char xdata BB ;
 unsigned char xdata CC ;
 unsigned char xdata DD ;
 unsigned int xdata D1 ;
 unsigned int xdata D2 ;
 long float xdata DUT;
 long float xdata OFF;
 long float xdata SENS;
long float xdata X;
//long float xdata Press;
//long float xdata Temp;
//long xdata  Altitude;


const long code Tab_BasicAltitude[80]={-6983,-6201,-5413,-4620,-3820,-3015,-2203,1385,-560, 270, //0.1m
// 1100 1090 1080 1070 1060 1050 1040 1030 1020 1010 //hpa
1108, 1953, 2805, 3664, 4224, 5403, 6284, 7172, 8068, 8972,
// 1000 990 980 970 960 950 940 930 920 910 //hpa
9885, 10805,11734,12671,13617,14572,15537,16510,17494,18486,
// 900 890 880 870 860 850 840 830 820 810//hpa
19489,20502,21526,22560,23605,24662,25730,26809,27901,29005,
// 800 790 780 770 760 750 740 730 720 710//hpa
30121,31251,32394,33551,34721,35906,37106,38322,39553,40800,
// 700 690 680 670 660 650 640 630 620 610//hpa
42060,43345,44644,45961,47296,48652,50027,51423,52841,54281,
// 600 590 580 570 560 550 540 530 520 510//hpa
55744,57231,58742,60280,61844,63436,65056,66707,68390,70105,
// 500 490 480 470 460 450 440 430 420 410//hpa
71854,73639,75461,77323,79226,81172,83164,85204,87294,89438};
// 400 390 380 370 360 350 340 330 320 310//hpa
/*
void main(void)
{SysDelay2ms(50);
IIC_ReadCalData( );
while(1)
{ReadTemperaturePreesureAD();
CalculatePressTemp( );
CalculateAltitude( );
SysDelay2ms(300);
}
}*/
U8 Test_Ack(Void)
{
 U8 Test;
 SCL=0;
 SDA=1;
 DelayUs(2);
SCL=1;
 DelayUs(3);
 Test=P0&0x02;
 SCL=0;
 DelayUs(3);
  return Test;//返回0表示收到应答
}	
//**********************************
//function: calculate power for 2
//**********************************
long int Get2_x(unsigned char i)
{
 long int uiData;
uiData=2;
i=i-1;
while(i)
{
uiData <<= 1;
i--;
}
return uiData;
}
//**********************************
//function:calculate press and temperature
//input :D1,D2,C1---C7,AA,BB,CC,DD
//output :Press, unit: 0.01hpa
// temp, unit: 0.1℃
//**********************************

void CalculatePressTemp(void)
{
//long float MiddleData1;
//long float MiddleData2;
//long float MiddleData3;
//long float MiddleData4;
//calculate the DUT value
if(D2<C5)
{
//DUT = D2-C5-((D2-C5)/Get2_x(7))*((D2-C5)/Get2_x(7))*BB/Get2_x(CC);
  MiddleData1 = (long)D2-C5;
  MiddleData2 = MiddleData1*MiddleData1/16384;
  MiddleData3 = MiddleData2*BB;
 MiddleData4 = Get2_x(CC);// MiddleData4 = Get2_x(CC);//(CC);
 MiddleData4 = MiddleData3/MiddleData4;
 DUT = MiddleData1 - MiddleData4; //MiddleData4 = MiddleData3/MiddleData4;
  //DUT = MiddleData1-MiddleData4;
}
else
{
//DUT = D2-C5-((D2-C5)/Get2_x(7))*((D2-C5)/Get2_x(7))*AA/Get2_x(C);
MiddleData1 = D2-C5;
MiddleData2 = MiddleData1*MiddleData1/16384;
MiddleData3 = MiddleData2*AA;
MiddleData4 = Get2_x(CC);
MiddleData4 = MiddleData3/MiddleData4;
DUT = MiddleData1 - MiddleData4;
}
//calculate the OFF value
//OFF = (C2+(C4-1024)*DUT/Get2_x(14))*4;
MiddleData1 = (long)C4-1024;
MiddleData2 = Get2_x(14);
MiddleData3 = DUT*MiddleData1;
MiddleData4 = MiddleData3/MiddleData2;
MiddleData4 = (long)C2+MiddleData4;
OFF = MiddleData4*4;

//calculate the SENS value
//SENS = C1+C3*DUT/Get2_x(10);
MiddleData1 = (long)C3*DUT;
MiddleData2 = Get2_x(10);
MiddleData3 = MiddleData1/MiddleData2;
SENS = C1+MiddleData3;

//calculate the X value
//X = SENS*(D1-7168)/Get2_x(14)-OFF;
MiddleData1 = Get2_x(14);
MiddleData2 = (long)D1-7168;
MiddleData3 = MiddleData2*SENS;
MiddleData4 = MiddleData3/MiddleData1;
X = MiddleData4-OFF;

//calculate the Press value,have two decimal fraction
//Press = X*100/Get2_x(5)+C7*10;
MiddleData1 = X*100;
MiddleData2 = Get2_x(5);
MiddleData3 = MiddleData1/MiddleData2;
MiddleData4 = C7*10;
Press = MiddleData3+MiddleData4;

//calculate the Temperature value
Temp = 250+DUT*C6/Get2_x(16)-DUT/Get2_x(DD);
}
//**********************************************
//function:calculate altitude
//input :Press value
//output :Altitude, unit:0.1m
//**********************************************
void CalculateAltitude(void)
{
char ucCount;
unsigned int uiBasicPress;
unsigned int uiBiasTotal;
unsigned int uiBiasPress;
unsigned int uiBiasAltitude;
for( ucCount=0; ; ucCount++ )
{
uiBasicPress = MaxPress-(ucCount*10);
if(uiBasicPress < (int)(Press/100)) break;
}
uiBiasTotal = Tab_BasicAltitude[ucCount] - Tab_BasicAltitude[ucCount-1];
uiBiasPress = Press - (long)(uiBasicPress*100);
uiBiasAltitude = (long)uiBiasTotal * uiBiasPress/1000;
Altitude = Tab_BasicAltitude[ucCount] - uiBiasAltitude;
ucCount = abs(Altitude % 10); // four lose and five up
if(Altitude < 0)
{
if(ucCount > 4)
Altitude -= 10-ucCount;
else
Altitude += ucCount;
}
else
{
if(ucCount > 4)
Altitude += 10-ucCount;
else
Altitude -= ucCount;
}
}

//========================================================
void IIC_ReadCalData(void)
{
unsigned char ucValue;
//do{
IIC_Start();
IIC_WriteByte(0xa0);
//SysDelay(DELAY10US);
  //}
//while(!(Test_Ack()==0)); 
IIC_WriteByte(16);
  SysDelay(DELAY10US);
// Test_Ack();
IIC_Start();
IIC_WriteByte(0xa1);
SysDelay(DELAY10US);
//Test_Ack();
ucValue = IIC_ReadByte();
IIC_ACK();
C1=ucValue;
ucValue = IIC_ReadByte();
IIC_ACK();
C1 <<= 8;
C1 |= ucValue;

ucValue = IIC_ReadByte();
IIC_ACK();
C2=ucValue;
ucValue = IIC_ReadByte();
IIC_ACK();
C2 <<= 8;
C2 |= ucValue;

ucValue = IIC_ReadByte();
IIC_ACK();
C3=ucValue;
ucValue = IIC_ReadByte();
IIC_ACK();
C3 <<= 8;
C3 |= ucValue;


ucValue = IIC_ReadByte();
IIC_ACK();
C4=ucValue;
ucValue = IIC_ReadByte();
IIC_ACK();
C4 <<= 8;
C4 |= ucValue;

ucValue = IIC_ReadByte();
IIC_ACK();
C5=ucValue;
ucValue = IIC_ReadByte();
IIC_ACK();
C5 <<= 8;
C5 |= ucValue;

ucValue = IIC_ReadByte();
IIC_ACK();
C6=ucValue;
ucValue = IIC_ReadByte();
IIC_ACK();
C6 <<= 8;
C6 |= ucValue;

ucValue = IIC_ReadByte();
IIC_ACK();
C7=ucValue;
ucValue = IIC_ReadByte();
IIC_ACK();
C7 <<= 8;
C7 |= ucValue;

ucValue = IIC_ReadByte();
IIC_ACK();
AA=ucValue;
ucValue = IIC_ReadByte();
IIC_ACK();
BB= ucValue;

ucValue = IIC_ReadByte();
IIC_ACK();
CC=ucValue;
ucValue = IIC_ReadByte();
IIC_NoAck();
IIC_Stop();
DD= ucValue;
}
//===============================================
void MCLKOn(void)
{
MCLK=0;

}
//===============================================
void MCLKOff(void)
{
MCLK=1;
}
//===============================================
void ReadTemperaturePreesureAD(void)
{
long uiSumADValue;
 uiSumADValue = 0;
IIC_XCLR_HIGH();
MCLKOn();
SysDelay2ms(1);

D1 = IIC_ReadPressureAD();
uiSumADValue += D1;
D1 = IIC_ReadPressureAD();
uiSumADValue += D1;
D1 = IIC_ReadPressureAD();
uiSumADValue += D1;
D1 = IIC_ReadPressureAD();
uiSumADValue += D1;
D1 = uiSumADValue >>2;

D2 = IIC_ReadTempretureAD();
uiSumADValue =0;// D2;
D2 = IIC_ReadTempretureAD();
uiSumADValue += D2;
D2 = IIC_ReadTempretureAD();
uiSumADValue += D2;
D2 = IIC_ReadTempretureAD();
uiSumADValue += D2;
D2 = uiSumADValue/3 ;//>>2;

SDA=0;
SCL=0;
MCLKOff();
IIC_XCLR_LOW();
}
//===============================================
unsigned int IIC_ReadTempretureAD(void)
{
unsigned char ucData;
unsigned int wADT;

//do{
IIC_Start();
IIC_WriteByte(0xEE);
Test_Ack();
// }
//while(!(Test_Ack()==0)); 
IIC_WriteByte(0xff);
Test_Ack();
IIC_WriteByte(0xE8);//(0xd0);//0xE8);
Test_Ack();
IIC_Stop();
SysDelay2ms(20);

IIC_Start();
IIC_WriteByte(0xEE);
Test_Ack();
IIC_WriteByte(0xFD);
Test_Ack();
IIC_Start();
IIC_WriteByte(0xEF);
Test_Ack();

ucData = IIC_ReadByte();
IIC_ACK();
// UartSend(CCC);
wADT = ucData;
wADT <<= 8;

ucData = IIC_ReadByte();
IIC_NoAck();
IIC_Stop();
wADT |= ucData;
//UartSend(DD);
return wADT;
}
//===============================================
unsigned int IIC_ReadPressureAD(void)
{
unsigned char ucData;
unsigned int wADp;
//do{
IIC_Start();
IIC_WriteByte(0xEE);
//Test_Ack();
 // }
//while(!(Test_Ack()==0));
//do{
IIC_WriteByte(0xff);
 //Test_Ack();
//  }
//while(!(Test_Ack()==0)); 
//do{
IIC_WriteByte(0xF0);
//Test_Ack();
 // }
//while(!(Test_Ack()==0)); 
IIC_Stop();
SysDelay2ms(20);

//do{
IIC_Start();
IIC_WriteByte(0xEE);
Test_Ack();
// }
//while(!(Test_Ack()==0)); 
//do{
IIC_WriteByte(0xFD);
Test_Ack();
 // }
//while(!(Test_Ack()==0)); 
//do{
IIC_Start();
IIC_WriteByte(0xEF);
Test_Ack();
//  }
//while(!(Test_Ack()==0)); 
ucData = IIC_ReadByte();
IIC_ACK();
wADp = ucData;
wADp <<=8;
//UartSend(AA);

ucData = IIC_ReadByte();
IIC_NoAck();
IIC_Stop();
wADp |= ucData;

//UartSend(BB);

return wADp;

}
//===============================================
unsigned char IIC_ReadByte(void)
{
unsigned char ucValue;
unsigned char ucIndex;

IIC_SDA_HIGH();
SysDelay(DELAY10US);
for ( ucIndex = 0; ucIndex < 8; ucIndex++ )
{
ucValue <<= 1;
IIC_SCL_LOW();
SysDelay(DELAY10US);
IIC_SCL_HIGH();
SysDelay(DELAY10US);
if(SDA)
ucValue |=1;
SysDelay(DELAY10US);

IIC_SCL_LOW();
SysDelay(DELAY10US);

}
return ucValue;
}
//===============================================
void IIC_WriteByte( unsigned char ucData )
{
unsigned char i;
for( i = 0; i < 8; i++ )
{
IIC_SCL_LOW();
SysDelay(DELAY10US);
if((ucData & 0x80) == 0x80)
{
IIC_SDA_HIGH();
SysDelay(DELAY10US);
}
else
{
IIC_SDA_LOW();
SysDelay(DELAY10US);
}


IIC_SCL_HIGH();
SysDelay(DELAY10US);
ucData <<= 1;
IIC_SCL_LOW();
}

IIC_SDA_HIGH();
SysDelay(DELAY10US);
IIC_SCL_LOW();
SysDelay(DELAY10US);
IIC_SCL_HIGH();
SysDelay(DELAY10US);
IIC_SCL_LOW();
SysDelay(DELAY10US);
}
//===============================================
void IIC_Start(void)
{
IIC_SDA_HIGH();
SysDelay(DELAY10US);
IIC_SCL_HIGH();
SysDelay(DELAY10US);
IIC_SDA_LOW();
SysDelay(DELAY10US);

IIC_SCL_LOW();
SysDelay(DELAY10US);

}
//===============================================
void IIC_Stop(void)
{
 IIC_SCL_LOW();
SysDelay(DELAY10US);
IIC_SDA_LOW();
SysDelay(DELAY10US);
IIC_SCL_HIGH();
SysDelay(DELAY10US);
IIC_SDA_HIGH();
SysDelay(DELAY10US);

}
//===============================================
void IIC_ACK(void)
{
IIC_SDA_LOW();
SysDelay(DELAY10US);
IIC_SCL_HIGH();
SysDelay(DELAY10US);
IIC_SCL_LOW();
SysDelay(DELAY10US);
}
//===============================================
void IIC_NoAck(void)
{
IIC_SDA_HIGH();
SysDelay(DELAY10US);
IIC_SCL_HIGH();
SysDelay(DELAY10US);
IIC_SCL_LOW();
SysDelay(DELAY10US);
}
//===============================================
void IIC_SDA_HIGH(void)
{
SDA=1;
}
//===============================================
//===============================================
void IIC_SDA_LOW(void)
{
SDA=0;
}
//===============================================
//===============================================
void IIC_SCL_HIGH(void)
{
SCL=1;
}
//===============================================
//===============================================
void IIC_SCL_LOW(void)
{
SCL=0;
}
//===============================================
void IIC_XCLR_LOW(void)
{
XCLR=0;
}
//===============================================
//===============================================
void IIC_XCLR_HIGH(void)
{
XCLR=1;
}
//===============================================
void SysDelay2ms( unsigned int t)
{
/*unsigned int i,j;
while(t--)
{for (i =0; i < 125; i++);
for (i = 0; j < 1500; j++);
}*/
	START_TIMER1;
   DelayMs(t);
   STOP_TIMER1;
}
//===============================================

//===============================================
//===============================================
void SysDelay(unsigned int t)
{
//t*=10;
while(t--);
}
//===============================================
//===============================================