示例一：

uint iPwmDuty;        double temp;                temp = (double)AdConvert(AN_TEMPERATURE);        temp = temp/250;                iPwmDuty = (int)(temp+0.5)>(int)temp?(int)temp+1:(int)temp;

如果参数在xx.5附近，易产生不稳定摆动

 

SMT（SF）

uint iPwmDuty;        uint temp,temp4,temp6;        static uint LastiPwmDuty;            temp = AdConvert(AN_TEMPERATURE);        temp = temp/25; //放大10倍，保留一位小数                temp6 = (temp+4)/10;        temp4 = (temp+6)/10;        temp = temp/10;                if(temp6 > temp)         {            iPwmDuty = temp6;        }        else if(temp4 == temp)        {            iPwmDuty = temp;        }        else        {            if(temp >= LastiPwmDuty)//由小到大            {                iPwmDuty = temp6;            }            else //(iPwmDuty < LastiPwmDuty)            {                iPwmDuty = temp4;            }        }        LastiPwmDuty = iPwmDuty;

 

 示例二：

uchar CanCharge(void){    uint temp;    static uchar ChgState = FALSE;        if(AdResult[AD_SUNBORD] > AdResult[AD_OPEN_BAT] )      {        temp = AdResult[AD_SUNBORD] - AdResult[AD_OPEN_BAT];    }    else     {        temp = 0;    } if (temp > 80)//   1V = 1/2.5/4.096*4096 = 400;         0.1V = 40;     {        ChgState = TRUE;                 }    else if(temp <= 0)    {        ChgState = FALSE;             }    return ChgState;}

 

  示例三：

//#include
     
      #include
      
       #include "adc.h"__CONFIG(FOSC_INTOSC&WDTE_OFF&PWRTE_ON&MCLRE_OFF&CP_ON&CPD_ON&BOREN_ON&CLKOUTEN_OFF&IESO_OFF&FCMEN_OFF);__CONFIG(WRT_ALL&PLLEN_OFF&STVREN_ON&LVP_OFF);#define uchar unsigned char#define uint unsigned int#define RLY1 LATA5#define RLY2 LATA4#define RLY3 LATC4#define RLY_ON 0#define RLY_OFF 1#define LED_ON 1#define LED_OFF 0#define TRUE 1#define FALSE 0#define LED1 LATC2  //LED1(DS3)-RLY1#define LED2 LATC1    //LED2(DS2)-RLY2#define LED3 LATC0   //LED3(DS1)-RLY3#define Connect3 262         //26.2V#define DisConnect3 238        //23.8V#define Connect2 260        #define DisConnect2 225#define Connect1 255        //25.5V#define DisConnect1 215        //21.5Vvoid DisplayLed(void);void main(){    uint BAT_SENSE ,BAT_VOLT;    static uint LoadConnect3,LoadConnect2,LoadConnect1;    static uint LoadDisConnect3,LoadDisConnect2,LoadDisConnect1;    static uchar RLY1_States,RLY2_States,RLY3_States;        init_a2d();        TRISA = 0x08; //MCLR = 1;    TRISC = 0x40;    ANSELC= 0x40; //set anolog in            BAT_SENSE = MiddleADValue(8);    BAT_VOLT = (uint)(BAT_SENSE*0.78125);//AD/1024*5*16 = (V);    5*160/1024 =800/1024 = 0.78125(参数放大10倍)    //Automatic system voltage recognition    if(BAT_VOLT <180){
   //12V            LoadConnect3 = Connect3>>1;                LoadDisConnect3 = DisConnect3>>1;            LoadConnect2 = Connect2>>1;                LoadDisConnect2 = DisConnect2>>1;            LoadConnect1 = Connect1>>1;                LoadDisConnect1 = DisConnect1>>1;     }else if(BAT_VOLT >360){
   //48V            LoadConnect3 = Connect3<<1;                LoadDisConnect3 = DisConnect3<<1;            LoadConnect2 = Connect2<<1;                    LoadDisConnect2 = DisConnect2<<1;            LoadConnect1 = Connect1<<1;                    LoadDisConnect1 = DisConnect1<<1;     }else{
   //24V            LoadConnect3 = Connect3;                    LoadDisConnect3 = DisConnect3;            LoadConnect2 = Connect2;                    LoadDisConnect2 = DisConnect2;            LoadConnect1 = Connect1;                    LoadDisConnect1 = DisConnect1;     }        RLY1_States = FALSE;        RLY2_States = FALSE;        RLY3_States = FALSE;        RLY1 = RLY_OFF;        RLY2 = RLY_OFF;        RLY3 = RLY_OFF;                LED1 = LED_OFF;        LED2 = LED_OFF;        LED3 = LED_OFF;    }    while(1)    {            BAT_SENSE = MiddleADValue(8);        BAT_VOLT = (uint)(BAT_SENSE*0.78125);//5*160/1024 =800/1024 = 0.78125                if(BAT_VOLT < LoadDisConnect1)        {            RLY1_States = FALSE;        }        else if(BAT_VOLT > LoadConnect1)        {            RLY1_States = TRUE;        }                if(BAT_VOLT < LoadDisConnect2)        {            RLY2_States = FALSE;        }        else if(BAT_VOLT > LoadConnect2)        {            RLY2_States = TRUE;        }                if(BAT_VOLT < LoadDisConnect3)        {            RLY3_States = FALSE;        }        else if(BAT_VOLT > LoadConnect3)        {            RLY3_States = TRUE;        }        //=====================================================        if(RLY1_States == TRUE)        {            RLY1 = RLY_ON;            }        else        {            RLY1 = RLY_OFF;            }        if(RLY2_States == TRUE)        {            RLY2 = RLY_ON;            }        else        {            RLY2 = RLY_OFF;            }        if(RLY3_States == TRUE)        {            RLY3 = RLY_ON;            }        else        {            RLY3 = RLY_OFF;            }        DisplayLed();        _delay(30000);    }}void DisplayLed(void){    //LED state set synchronization    if(RLY1_States == TRUE)    {                LED1 = LED_ON;        }    else    {        LED1 = !LED1;    }        if(RLY2_States == TRUE)    {            LED2 = LED_ON;    }    else    {        LED2 = !LED2;    }        if(RLY3_States == TRUE)    {        LED3 = LED_ON;    }    else     {        LED3 = !LED3; //One LED twinkle    }}
      
     

 

 

 

//#include
     
      #include
      
       #include "adc.h"__CONFIG(FOSC_INTOSC&WDTE_ON&PWRTE_OFF&MCLRE_OFF&CP_ON&CPD_ON&BOREN_ON&CLKOUTEN_OFF&IESO_OFF&FCMEN_OFF);__CONFIG(WRT_ALL&PLLEN_OFF&STVREN_ON&LVP_OFF);#define uchar unsigned char#define uint unsigned int#define RLY1 LATA5#define RLY2 LATA4#define RLY3 LATC4#define RLY_ON 0#define RLY_OFF 1#define LED_ON 1#define LED_OFF 0#define LED1 LATC2  //LED1(DS3)-RLY1#define LED2 LATC1    //LED2(DS2)-RLY2#define LED3 LATC0   //LED3(DS1)-RLY3#define Connect3 262         //26.2V#define DisConnect3 238        //23.8V#define Connect2 260        #define DisConnect2 225#define Connect1 255        //25.5V#define DisConnect1 215        //21.5Vvoid DisplayLed(void);void main(){    uchar flag;    uint BAT_SENSE ,BAT_VOLT;    static uint LoadConnect3,LoadConnect2,LoadConnect1;    static uint LoadDisConnect3,LoadDisConnect2,LoadDisConnect1;    init_a2d();        TRISA = 0x08; //MCLR = 1;    TRISC = 0x40;    ANSELC= 0x40; //set anolog in            BAT_SENSE = MiddleADValue(8);    BAT_VOLT = (uint)(BAT_SENSE*0.78125);//AD/1024*5*16 = (V);    5*160/1024 =800/1024 = 0.78125(参数放大10倍)    //Automatic system voltage recognition    if(BAT_VOLT <180){
   //12V            LoadConnect3 = Connect3>>1;                LoadDisConnect3 = DisConnect3>>1;            LoadConnect2 = Connect2>>1;                LoadDisConnect2 = DisConnect2>>1;            LoadConnect1 = Connect1>>1;                LoadDisConnect1 = DisConnect1>>1;     }else if(BAT_VOLT >360){
   //48V            LoadConnect3 = Connect3<<1;                LoadDisConnect3 = DisConnect3<<1;            LoadConnect2 = Connect2<<1;                    LoadDisConnect2 = DisConnect2<<1;            LoadConnect1 = Connect1<<1;                    LoadDisConnect1 = DisConnect1<<1;     }else{
   //24V            LoadConnect3 = Connect3;                    LoadDisConnect3 = DisConnect3;            LoadConnect2 = Connect2;                    LoadDisConnect2 = DisConnect2;            LoadConnect1 = Connect1;                    LoadDisConnect1 = DisConnect1;     }            flag = 0;        RLY1 = RLY_OFF;        RLY2 = RLY_OFF;        RLY3 = RLY_OFF;                LED1 = LED_OFF;        LED2 = LED_OFF;        LED3 = LED_OFF;    }    while(1)    {            BAT_SENSE = MiddleADValue(8);        BAT_VOLT = (uint)(BAT_SENSE*0.78125);//5*160/1024 =800/1024 = 0.78125                //Determine which range of BAT_VOLT        if(BAT_VOLT
       
        =LoadDisConnect1)&&(BAT_VOLT
        
          1)//由大到小            {                    //RLY1 = RLY1;                RLY2 = RLY_OFF;                    RLY3 = RLY_OFF;                }else if(flag <= 1){                }            flag = 1;        }        else if((BAT_VOLT>=LoadDisConnect2)&&(BAT_VOLT
         
           2)            {                    //RLY1 = RLY1;                //RLY2 = RLY2;                RLY3 = RLY_OFF;                    }            flag = 2;        }        /*-------------------------------------------------------*/        else if((BAT_VOLT>=LoadDisConnect3)&&(BAT_VOLT
          
           =LoadConnect1)&&(BAT_VOLT
           
            =LoadConnect2)&&(BAT_VOLT
            
             =LoadConnect3) { RLY1 = RLY_ON; RLY2 = RLY_ON; RLY3 = RLY_ON; flag = 6; } DisplayLed(); _delay(30000); }}void DisplayLed(void){ //LED state set synchronization if(RLY1 == RLY_ON) { LED1 = LED_ON; } else { LED1 = !LED1; } if(RLY2 == RLY_ON) { LED2 = LED_ON; } else { LED2 = !LED2; } if(RLY3 == RLY_ON) { LED3 = LED_ON; } else { LED3 = !LED3; //One LED twinkle }}
            
           
          
         
        
       
      
     

 

 

施密特算法