真正的单片机程序框架------->小巧的软件定时器....O(∩_∩)O

#ifndef __PLC__H__

#include "plc.h"

#define __PLC__H__

#endif

TIME_RELAY T[16];

COUNTER C[16];

DI_FILTER DI[16];

void init_time_relay(TIME_RELAY *time_relay)

{

      time_relay->coil=0;

      time_relay->contact=0;

      time_relay->acc=0;

      time_relay->set=100;

}



void scan_time_relay(TIME_RELAY *time_relay)

{

    if(time_relay->coil)

    {

        time_relay->acc++;

        if(time_relay->acc>time_relay->set) time_relay->contact=1;

    }

    else

    {

          time_relay->acc=0;

          time_relay->contact=0;

    }

}



void init_counter(COUNTER *cu)

{

    cu->coil=0;

    cu->coil_old=1;

    cu->contact=0;

    cu->acc=0;

    cu->set=0;

}



void scan_counter(COUNTER *cu)

{

    //上升沿   

    if(cu->coil==1 && cu->coil_old==0) cu->acc++;

    //下降沿

    //if(cu->coil==0 && cu->coil_old==1) cu->acc++;

    cu->coil_old=cu->coil;

    if(cu->acc>cu->set) cu->contact=1; 

}



void init_digital_input(DI_FILTER *di)

{

    di->in=0;

    di->out=0;

    di->high_acc=0;

    di->low_acc=0;

    di->out_old=0;

    di->confirm_time=10;

}



void scan_digital_input(DI_FILTER *di)

{

    if(di->in)

    {

        di->high_acc++;

        if(di->high_acc>di->confirm_time) di->out=1; 

        di->low_acc=0;

    }

    else

    {

        di->low_acc++;

        if(di->low_acc>di->confirm_time) di->out=0;

        di->high_acc=0;

    }

    di->rise=(di->out_old==0 && di->out==1);

    di->fall=(di->out_old==1 && di->out==0); 

    di->out_old=di->out;

    

}



void init_plc(void)

{

    unsigned char j=0;

    for(j=0;j<16;j++) {

        init_time_relay(&T[j]); 

        init_counter(&C[j]);

        init_digital_input(&DI[j]);

    }

}



void scan_plc(void)

{

    unsigned char j=0;

    for(j=0;j<16;j++) {

        scan_time_relay(&T[j]);

        scan_counter(&C[j]);

        scan_digital_input(&DI[j]);

    }

}

typedef struct{

    unsigned char coil:1;

    unsigned char contact:1;

    unsigned int acc;

    unsigned int set;

}TIME_RELAY;



typedef struct{

    unsigned char coil:1;

    unsigned char coil_old:1;

    unsigned char contact:1;

    unsigned char overflow:1;

    unsigned int acc;

    unsigned int set;   

}COUNTER;



typedef struct {

    unsigned char in:1;

    unsigned char out:1;

    unsigned char out_old:1;

    unsigned char rise:1;

    unsigned char fall:1;

    unsigned char high_acc:8;        

    unsigned char low_acc:8;

    unsigned char confirm_time;

}DI_FILTER;



void init_time_relay(TIME_RELAY *time_relay);

void scan_time_relay(TIME_RELAY *time_relay);

void init_counter(COUNTER *cu);

void scan_counter(COUNTER *cu);

void init_digital_input(DI_FILTER *di);

void scan_digital_input(DI_FILTER *di);

void init_plc(void);

void scan_plc(void);

unsigned char is_fall(unsigned char new,unsigned char *old);

unsigned char is_rise(unsigned char new,unsigned char *old);