HC89F003温度采集显示分享

只看该作者 · 2017-12-5 09:45

本帖最后由芯圣电子官方QQ 于 2023-7-24 14:23 编辑

收到芯圣的仿真器，玩了一个星期，比较容易上手。下面是我自己写的一个温度检测程序，用LED显示的，完全可应用到产品上。借鉴官方例子里的看门狗，ADC，LED应用。现在正在研究驱动LCD液晶显示，过几天，写完程序，再跟大家分享。

#include "HC89F003.h"
/*********************************************************************************/
#define    u8    unsigned char
#define    u16    unsigned int
#define    u32    unsigned long
/***********************RAM太小，常量请放ROM中，加code.*放内部RAM加data*放外部RAM加xdata*不加默认放xdata********************/
  /***********************LED段码表***P2.1-A,P2.2-E,P2.3-D,P2.4-C,P2.5-G,P2.6-DP,P0.6-F,P0.7-B,P2.0-S2,P0.5-S3,P0.3-S1********/
u8 code ledDuan[16] = {0x20,0x6E,0x50,0x44,0x0E,0x84,0x80,0x6C,0x00,0x04,//0-9
                     0xFE,0xB0,0x90,0x98, 0xDA,0xB2};       //NULL,C,E,F,r,L

  /***********************温度表，扩大10倍**********************************************************/
  u16 code ntcPositive[250] =
{ 77,  82,  86,  91,  95, 101, 106, 111, 117, 123,       //1~10
130, 136, 143, 151, 158, 166, 174, 183, 192, 201,       //11~20
211, 221, 232, 243, 255, 267, 279, 292, 305, 319,       //21~30
334, 349, 365, 381, 398, 415, 433, 452, 471, 491,       //31~40
512, 534, 556, 579, 602, 627, 652, 678, 705, 733,       //41~50
761, 791, 821, 853, 885, 918, 952, 987, 1023,1059,       //51~60
1097,1136,1176,1217,1258,1301,1345,1390,1436,1483,       //61~70
1530,1579,1629,1680,1732,1785,1839,1894,1950,2007,       //71~80
2064,2123,2183,2243,2305,2367,2431,2495,2559,2625,       //81~90
2692,2759,2827,2895,2964,3034,3105,3176,3247,3319,       //91~100
3392,3465,3538,3612,3686,3761,3835,3910,3985,4061,       //101~110
4136,4211,4287,4363,4438,4514,4589,4664,4740,4815,       //111~120
4889,4964,5038,5112,5186,5259,5332,5404,5476,5548,       //121~130
5619,5689,5759,5829,5898,5966,6034,6101,6167,6233,       //131~140
6298,6363,6426,6489,6552,6613,6674,6734,6793,6852,       //141~150
6910,6967,7023,7079,7134,7188,7241,7293,7345,7396,       //151~160
7446,7496,7544,7592,7639,7686,7731,7776,7820,7864,       //161~170
7906,7948,7990,8030,8070,8109,8148,8186,8223,8259,       //171~180
8295,8330,8365,8399,8432,8465,8497,8529,8560,8590,       //181~190
8620,8649,8678,8706,8734,8761,8787,8814,8839,8864,       //191~200
8889,8913,8937,8960,8983,9005,9027,9049,9070,9091,       //201~210
9111,9131,9151,9170,9189,9207,9225,9243,9260,9277,       //211~220
9294,9310,9327,9342,9358,9373,9388,9402,9417,9431,       //221~230
9445,9458,9471,9484,9497,9510,9522,9534,9546,9557,       //231~240
9569,9580,9591,9601,9612,9622,9632,9642,9652,9662,       //241-250
};

/*********对应段里的位置************************************************************************/
#define NUL 10
#define C 11
#define E 12
#define F 13
#define r 14
#define L 15
sbit PTC=P1^0 ;
bit bCf=0;
bit bPowerOn=0;
u8 errNtc=0;
u8 realTemp=1;
/*********************************************************************************/
/***************************************************************************************
***************************************************************************************/
/*********端口设置************************************************************************/
void GPIOSysInit(void)
{
      P0M1 = 0x88;
      P0M2 = 0x88;
      P0M3 = 0x88;
      P2M0 = 0x88;
      P2M1 = 0x88;
      P2M2 = 0x88;
      P2M3 = 0x88;
}
/**************看门狗设置*******************************************************************/
void IWDG_Init(void)
{
/***********************************WDT配置初始化**************************************/
      WDTC = 0x57;             //允许WDT复位，允许掉电/空闲模式下运行，1024分频

      //WDT使用的是RC44K时钟，WDT_CLOCK_1024是1024分频，初值为0xFF
      //定时时间       = 1024 * 0xFF / 44000
      //                      = 5.93s

      WDTCCR = 0xFF;             //写入00时，将关闭WDT功能（但不关闭内部低频RC），
                              //即相当于禁止WDT。写入非0数据时，将启动WDT。
}
/*****************喂狗***********************************************************/
void CLRWDT(void)
{
  WDTC |= 0x10;                //喂狗
}
/************ADC设置*********************************************************************/
void ADC_Init(void)
{  /************************************ADC初始化*****************************************/
      P0M0 = P0M0|0x03;                                        //P00设置为模拟输入
      ADCC0 = 0x80;                                     //打开ADC转换电源
      ADCC1 = 0x00;                                     //选择外部通道0
      ADCC2 = 0xCD;                                     //转换结果10位数据，数据右对齐，ADC时钟16分频  ,1MHz
      ADCC0 |= 0x40;                                     //启动ADC转换
}

/*****************延时***********************************************************/
void Delayus(u8 us)
{
u8 i,j;
   for(i=0; i<us; i++)
      for(j=0; j<10; j++);
}

/*****************数码管显示***********************************************************/
void LedDisplay(u8 *dat)
{
u8 buff[4],i;
CLRWDT();
      for(i=0; i<4; i++)
         buff = *dat++;

         P0_3=1;
         P2_0=0;
               P0_5=0;
         P2= (P2&0XC1)|((ledDuan[buff[0]])&0x3E);
         P0= (P0&0X3F)|((ledDuan[buff[0]])&0xC0);
         Delayus(200);
         P2= 0XFE;
         P0= 0XC0;

            P0_3=0;
         P2_0=1;
            P0_5=0;
         if(buff[3] == F)
            P2_6= 0;
         else
            P2_6= 1;
         P2= (P2&0XC1)|((ledDuan[buff[1]])&0x3E);
         P0= (P0&0X3F)|((ledDuan[buff[1]])&0xC0);
            Delayus(200);
         P2= 0XFE;
         P0= 0XC0;

            P0_3=0;
         P2_0=0;
         P0_5=1;
         if(buff[3] == C)
            P2_6= 0;
               else
            P2_6= 1;
         P2= (P2&0XC1)|((ledDuan[buff[2]])&0x3E);
         P0= (P0&0X3F)|((ledDuan[buff[2]])&0xC0);
            Delayus(200);
         P2= 0XFE;
         P0= 0XC0;
}
/***************温度显示*************************************************************/
void DisplayTmp(u16 dat)
{
            u8 tmp[4];
            CLRWDT();
            tmp[0] = dat/100;
            tmp[1] = dat/10%10;
         // tmp[1]=tmp[1]%10;
            tmp[2] = dat%10;
            if(dat < 100)
            {
            tmp[0] = NUL;
                  if(dat<10)
               tmp[1] = NUL;
            }
            if(bCf)
            tmp[3] = F;
            else
            tmp[3] = C;
            LedDisplay(tmp);
}
/***************检测温度******************************************************************/
void AdcSampling(void)
{
u8 i=0;
static u8 j=0,p=0;
static u16 sum=0,k=0;
   CLRWDT();

   if(ADCC0&0x20)//ADC转换中断
      {
         ADCC0 &=~ 0x20;                                     //清除标志位
         if(j > 49) //50次
         {
         sum=sum/5;
         j = 0;
         if(sum >10000)       // < 0 故障
            {
            k=0;
               //if(!bPowerOn)//开机时
                  {
                     p++;
                     if(p > 20)                               //2s
                     {
                        p = 0;
                        errNtc = 1;//NTC 短路
                     }
            }
               //else
            {
                  // k=0;
                  // p=0;
                  // j=0;
                  }
               }
            else if(sum <20)
            {
            p=0;
               //if(!bPowerOn)//开机时
                  {
                     k++;
                     if(k > 1050)                               //30s
                     {
                        k = 0;
                        errNtc = 2;//NTC 开路
                     }
               }
               //else
            {
                  // k=0;
                  // j=0;
                  }
            }
            else//无故障
            {
                  if(sum<77)
                     realTemp = 0;
                     if(sum>9557)
                     realTemp =240;

               for(i=0; i<241; i++)//查询温度
               {
                  if(sum < (ntcPositive))
                     {
                        realTemp = i;
                        if(realTemp >= 240)//温度超限
                                 realTemp = 240;
                           break;
                     }

               }
               errNtc = 0;//故障解除
               k = 0;
                     p=0;
            }
               sum=0;
            }
            else
            {
               j++;
                  sum+=  ADCR;                      //获取ADC的值
            }
         ADCC0 |= 0x40;       //启动ADC转换
      }
}

/*************初始化********************************************************************/
void SystemInit(void)
{
/************************************系统初始化****************************************/
      WDTCCR = 0x00;                                              //关闭看门狗
      while((CLKCON&0x20)!=0x20);                      //等待内部高频晶振起振
      CLKSWR = 0x51;                                              //选择内部高频时钟为主时钟，内部高频RC2分频，Fosc=16MHz
      while((CLKSWR&0xC0)!=0x40);                      //等待内部高频切换完成
      CLKDIV = 0x01;                                              //Fosc1分频得到Fcpu，Fcpu=16MHz
/***********************************************************************/
      GPIOSysInit(); //端口初始化
         ADC_Init();
         //Tim1_Init();
         IWDG_Init();
}

void main()
{
u8 tmp[4];
//u16 data dat;

      SystemInit(); //系统初始化

      while(1)
      {
         CLRWDT();
         AdcSampling();//检测温度
         if(errNtc!=0)//故障时
         {
            tmp[0] = E;
         tmp[1] = r;
            tmp[2] = r;
         tmp[3] = NUL;
            LedDisplay(tmp);//Err
         }
         else
         DisplayTmp(realTemp);
      }

}