AVR447: Sine wave driving of three phase motor: pid.h Source File

00001 /* This file has been prepared for Doxygen automatic documentation generation.*/
00029 #ifndef PID_H
00030 #define PID_H
00031 
00037 #define SCALING_FACTOR  256
00038 
00039 
00044 typedef struct pidData{
00046   int16_t lastProcessValue;
00048   int32_t sumError;
00050   int16_t P_Factor;
00052   int16_t I_Factor;
00054   int16_t D_Factor;
00056   int16_t maxError;
00058   int32_t maxSumError;
00059 } pidData_t;
00060 
00061 
00063 #define MAX_INT         32767
00064 
00066 #define MAX_LONG        2147483647L
00067 
00075 #define MAX_I_TERM      (MAX_LONG - (2 * (int32_t)MAX_INT))
00076 
00077 // Boolean values
00079 #define FALSE           0
00080 
00082 #define TRUE            (!FALSE)
00083 
00084 
00085 //Prototypes
00086 void PID_Init(int16_t p_factor, int16_t i_factor, int16_t d_factor, pidData_t *pid);
00087 int16_t PID_Controller(int16_t setPoint, int16_t processValue, pidData_t *pid_st);
00088 void PID_Reset_Integrator(pidData_t *pid_st);
00089 
00090 #endif