pid.cpp

pid C 元马 绝对好用 谢谢 大家 谢谢

#include <stdio.h>
#include <stdlib.h>
struct _pid {
int pv; /*integer that contains the process value*/
int sp; /*integer that contains the set point*/
float integral;
float pgain;
float igain;
float dgain;
int deadband;
int last_error;
};
struct _pid warm,*pid;
int process_point, set_point,dead_band;
float p_gain, i_gain, d_gain, integral_val,new_integ;;
/*------------------------------------------------------------------------
pid_init
　DESCRIPTION This function initializes the pointers in the _pid structure
　　to the process variable and the setpoint. *pv and *sp are
　　integer pointers.