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標(biāo)題: 酒精測試儀程序 [打印本頁]

作者: 1592281111 時(shí)間: 2017-11-27 20:54
標(biāo)題: 酒精測試儀程序
我現(xiàn)在有原理圖，實(shí)物已經(jīng)按照原理圖接線，程序現(xiàn)在有問題，望各位大神指教
#include "reg52.H"
#include <STC89c52.h>
#include <L1602.h>
#include <2402.h>

#define uchar unsigned char
#define uint  unsigned int

//聲明常量
#define ALCH    80    //醉駕標(biāo)準(zhǔn)80mg/L
//K_MG_MV和K_ZERO為傳感器校準(zhǔn)系數(shù)，要根據(jù)每個(gè)MQ-3模塊校準(zhǔn)
#define K_MG_MV 160/66  //傳感器靈敏度系數(shù)，每毫克/L對(duì)應(yīng)的10毫伏數(shù)
#define K_ZERO    15    //傳感器零點(diǎn)漂移，約130mV

//定義按鍵
sbit Key_Up = P3^6;
sbit Key_Down = P3^7;

//定義LED報(bào)警燈
sbit Led_Warn1 = P2^0;
sbit Led_Warn2 = P2^1;
sbit Led_Warn3 = P2^2;

//定義乙醇傳感器TTL電平輸出引腳
sbit DOUT = P1^4;

//定義標(biāo)識(shí)
volatile bit FlagStartAL = 0;  //開始轉(zhuǎn)換標(biāo)志
volatile bit FlagKeyPress = 0; //有鍵彈起標(biāo)志

//全局變量定義
uchar Threshold;             //酒精濃度上限報(bào)警值
uint  ALCounter;             //酒精轉(zhuǎn)換計(jì)時(shí)器
long ALValue;                //酒精測量值
float ALtemp;                   //計(jì)算臨時(shí)變量

uint keyvalue, keyUp, keyDown; //鍵值
char * pSave;                //EEPROM存盤用指針

//函數(shù)聲明
void Data_Init();
void Timer0_Init();
void Port_Init();
void ADC_Init();
uchar GetADVal();
void KeyProcess(uint );

//數(shù)據(jù)初始化
void Data_Init()
{
ALCounter = 0;
ALValue = 0;
Led_Warn1 = 1;
Led_Warn2 = 2;
Led_Warn3 = 3;
keyvalue = 0;
keyUp = 1;
keyDown = 1;
}

//定時(shí)器0初始化，中斷時(shí)間約2毫秒
//計(jì)算：晶振11.0592MHz，定時(shí)器時(shí)鐘11059200/12=921600，每毫秒922個(gè)脈沖
//    16位定時(shí)器初值65536-1844=63692=0xf8cc
void Timer0_Init()
{
ET0 = 1;       //允許定時(shí)器0中斷
TMOD = 1;    //定時(shí)器工作方式選擇
TL0 = 0xcc;    //
TH0 = 0xf8;    //定時(shí)器賦予初值，大約為2毫秒中斷1次
TR0 = 1;       //啟動(dòng)定時(shí)器
}

//定時(shí)器0中斷
void Timer0_ISR (void) interrupt 1 using 0
{
TL0 = 0xcc;
TH0 = 0xf8;    //定時(shí)器賦予初值

//每1秒鐘啟動(dòng)一次AD轉(zhuǎn)換
ALCounter ++;
if (ALCounter >= 500)
{
   FlagStartAL = 1;
   ALCounter = 0;
}
}

//存入設(shè)定值

void Save_Setting()
{
pSave =  (char *)&Threshold;    //地址低位對(duì)應(yīng)低8位，高位對(duì)應(yīng)高8位
wrteeprom(0, *pSave);       //存醉酒閾值低8位
DELAY(300);
pSave ++;
wrteeprom(1, *pSave);       //存醉酒閾值高8位
DELAY(300);
}

//載入設(shè)定值
void Load_Setting()
{
pSave =  (char *)&Threshold;
*pSave++ = rdeeprom(0);
*pSave = rdeeprom(1);
if ((Threshold>=255)||(Threshold<0)) Threshold = 80;
}

//按鍵處理程序，參數(shù)為鍵值，1為Up鍵，2為Down鍵
void KeyProcess(uint num)
{
switch (num)
{
   case 1:
      if (Threshold<255) Threshold++;
      break;
   case 2:
      if (Threshold>1) Threshold--;
      break;
   default:
      break;
}
L1602_int(2,9,Threshold);
Save_Setting();
}

void main()
{
uint i,j;

EA = 0;
Data_Init();    //數(shù)據(jù)初始化
Timer0_Init(); //定時(shí)器0初始化
Port_Init();    //端口初始化
ADC_Init();    //ADC初始化
EA = 1;
L1602_init();
L1602_string(1,1,"Welcome to ALCT! ");
L1602_string(2,1,"Designed by AAA  ");
//延時(shí)
for (i=0;i<1000;i++)
   for (j=0;j<1000;j++)
      {;}
//清屏
L1602_string(1,1,"             ");
L1602_string(2,1,"             ");
L1602_string(1,1,"Alcohol: mg/L");
L1602_string(2,1,"Thresho: mg/L");
//載入設(shè)定值
Load_Setting();
L1602_int(2,9,Threshold);
while(1)
{
   //如果FlagStartAL標(biāo)志置位，則進(jìn)行AD轉(zhuǎn)換
   if (FlagStartAL == 1)
   {
      //酒精濃度換算，50mg/L=62.5ppm，傳感器靈敏度應(yīng)事先校準(zhǔn)
      ALValue = 500 * GetADVal() / 256;       //8位ADC，首先得到電壓值，單位10毫伏
      ALValue = ALValue - K_ZERO;             //首先減去零點(diǎn)漂移，一般是130mV
   if (ALValue < 0) ALValue = 0;
   ALValue = ALValue * K_MG_MV;          //將mV轉(zhuǎn)變成mg/L，K_MG_MV系數(shù)需要校準(zhǔn)
      L1602_int(1,9,ALValue);
   if (ALValue > Threshold) Led_Warn1 = 0;  //超過閾值，則 Led_Warn1燈報(bào)警，否則報(bào)警燈滅。
   else Led_Warn1 = 1;
   FlagStartAL = 0;
   }
   //查詢乙醇傳感器TTL電平，該指示燈為傳感器模塊報(bào)警
   if (DOUT == 0)  Led_Warn2 = 0;
   //鍵盤查詢，在彈起時(shí)響應(yīng)
   if ((Key_Up)&&(keyUp==0)) {FlagKeyPress = 1; keyvalue = 1;}
   else if ((Key_Down)&&(keyDown==0)) {FlagKeyPress = 1; keyvalue = 2;}
   if (FlagKeyPress == 1)
   {
      KeyProcess(keyvalue);
      FlagKeyPress = 0;
   }
   if (!Key_Up) keyUp = 0;
   else keyUp = 1;
   if (!Key_Down) keyDown = 0;
   else keyDown = 1;
   DELAY(100);
}
}

$0DCJ[BSD`$$))DS{NRNUVR.png (161.41 KB, 下載次數(shù): 62)

原理圖

作者: 055441 時(shí)間: 2019-4-26 17:30
看不懂

作者: kaixin999 時(shí)間: 2019-4-28 20:03
感謝分享

作者: 老頑固 時(shí)間: 2020-12-12 23:46
wrteeprom這個(gè)報(bào)錯(cuò)了

作者: 湖南 時(shí)間: 2020-12-30 17:02
是顯示問題嗎

作者: 君子之膠淡如水 時(shí)間: 2024-5-18 20:06
ALValue = 500 * GetADVal() / 256; //8位ADC，首先得到電壓值，單位10毫伏

這個(gè)500和256有什么說法

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