emeter_3phase.h

基于MSPF449的三相电压表功率的开发程序

#include <target_device.h>     // Standard Definition Control Register


int sinne_gen(int *phase,int phaser_rate);
int FIR(int FIR_params[],int input);
extern long SIGNED_MUL(int operand1, int operand2);
extern int FRACTIONAL_SIGNED_MUL(int operand1, int operand2);
int power_conversion(long total_power, float scale_factor);
void extract_dc_bias(long* channel_long_params, int* channel_int_params, int* voltage, int* current);
void calibrate_starts(int* int_params, long* long_params);
double calc_phase_shift(double ratio);
void sync_with_reference(void);
void system_setup(void);    // Initialization of System/Control Registers
                            //tell whether current AC value is POS or NEG
int calibrate_CT(int* int_params, long* long_params);                            
extern void DISPLAY_1DIGIT(int hex_number, int position);
extern void DISPLAY(int hex_number, int position);
//--------------------------------------------------------------------------


//long chan1_long_params[12]
#define V_accum           0           //accumulates voltage samples 
#define logged_V_accum    1           //stores accumulator after a number of cycles
#define I_accum           2           //accumulates current samples  
#define logged_I_accum    3           //stores accumulator after a number of cycles 
#define P_accum           4           //accumulates power samples    
#define logged_P_accum    5           //stores accumulator after a number of cycles  
#define E_accum           6           //stores the current accumulated energy
#define E_accum_threshold 7           //stores the threshold when a pulse is issued
#define E_accum_count     8           //stores the electricity count.
#define PS_P_accum         9           //accumulates phase shifted power samples    
#define logged_PS_P_accum  10           //stores phase shifted accumulator after a number of cycles  
#define POWER_SCALE_FACTOR 11

//int chan1_int_params[22]    

#define  V_cycle_counter  0 //         contains number of voltage cycles
#define  I_cycle_counter  1 //       contains number of current cycles
#define  P_cycle_counter  2 //      contains number of power cycles
      
#define  V_count          3 //      contains number of voltage samples accumulated
#define  logged_V_count   4 //      stores number of sampples after a number of cycles   
        
#define  I_count          5 //      contains number of current samples accumulated
#define  logged_I_count   6 //      stores number of sampples after a number of cycles
        
#define  P_count          7 //      contains number of power samples accumulated
#define  logged_P_count   8 //      stores number of sampples after a number of cycles        
          
#define  V_bias           9 //      contains uptodate voltage dc_bias level     
#define  I_bias           10 //       contians uptodate current dc_bias level       
            
#define  channel_status   11 //       contains status use for detecting a threshold
#define  V_POS          0x1   // these are flags defined for channel_status
#define  I_POS          0x2
#define  NEW_V_LOG      0x4
#define  NEW_I_LOG      0x8
#define  NEW_P_LOG      0x10
#define  E_TICK         0x20
#define  CURRENT_HIGH_GAIN 0x40

#define  PS_P_count          12 //      contains number of phase shifted power samples accumulated
#define  logged_PS_P_count   13 //      stores number of phase shifted samples after a number of cycles 

#define  FIR_POINTER         14 //      points to the FIR entrance in the table
                                //      Use these levels to decide range switching
#define  FIR_TAP             15
#define  FIR_BETA            16
#define  FIR_GAIN            17
#define  I_above_threshold_counter 18
#define  logged_I_above_threshold_counter  19
#define  ENERGY_PERIOD			   20
#define  LAST_TAR                          21

//int FIR_current1[3];
//#define TAP   0
//#define BETA  1
//#define GAIN  2
#define FIR_UNITY_LOAD    63*2        //element 63 is for no CT phase shift

//int voltage_buffer_chan1[64];
//int current_buffer_chan1[64];

#define SAMPLE_BUFFER_SIZE  64

//TIMER_B sample timing
                              //every 10 32768Hz clock generate interrupt routine
#define SAMPLE_PERIOD     9
                              //Start sampling at 8th clock
                              //This gives it 2 clock cycles for the conversion to be done
                              //this is 61us
                              //11 input conversion needs 11/200K = 55uS
#define RESULT_READY_TIME 7

//LED SETUP for power pulses
#define   CHAN1_PULSE   BIT0    //P3.0
#define   CHAN2_PULSE   BIT1    //P3.1
#define   CHAN3_PULSE   BIT2    //P3.2

//Flash programming
#define   FSEG_A 0x01080    /* Flash Segment A start address */
#define   FSEG_B 0x01000    /* Flash Segment B start address */

void Flash_wb( char *Data_ptr, char byte );
void Flash_ww( int *Data_ptr, int byte );
void Flash_wl( long *Data_ptr, long byte );
void Flash_clr( int *Data_ptr );
void Flash_secure(void);
void replace_flash_word(int *Data_ptr, int word );
void replace_flash_long(long *Data_ptr, long word );

#define   FLASH_ADDRESS_CHAN1_E_ACCUM_THRESHOLD FSEG_A+2

//Display
#define D_CLEAR 16
#define D_MINUS 17
#define D_P     18
#define D_S     19
#define D_r     20
#define D_a     21

//Current gain Switching threshold
//Current changes from +2047 to -2048
//From Vref to external will change the gain by 4.
//So pk-pk for switching = 2048/4 * 1/3 = 170
#define   I_SWITCHING_THRESHOLD  170

#define   I_GAIN_LO_HI_THRESHOLD 240  //From high current to low current threshold is 0.05Vrms
#define   I_GAIN_HI_LO_THRESHOLD 1800 //From low current to high current threshold is 0.1Vrms

//Global SIMULATE FLAG
#define SIMULATED_INPUT   0