/*******************************************************************************
   Header File for High-Resolution PWM with Fine Edge Placement Configuration

  File Name:
    pwm.h

  Summary:
    This header file lists routines to configure High-Resolution PWM with Fine 
    Edge Placement 

  Description:
    Definitions in the file are for dsPIC33CK256MP508 on Motor Control 
    Development board from Microchip

*******************************************************************************/
/*******************************************************************************
* Copyright (c) 2017 released Microchip Technology Inc.  All rights reserved.
*
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* 
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*******************************************************************************/
#ifndef _PWM_H
#define _PWM_H

#ifdef __cplusplus  // Provide C++ Compatability
    extern "C" {
#endif
// *****************************************************************************
// *****************************************************************************
// Section: Included Files
// *****************************************************************************
// *****************************************************************************
#include <xc.h>
#include <stdint.h>
#include "clock.h"
// *****************************************************************************
// *****************************************************************************
// Section: Constants
// *****************************************************************************
// *****************************************************************************
// OSCILLATOR Related Definitions

// MC PWM MODULE Related Definitions
#define INVERTERA_PWM_PDC1      PG1DC
#define INVERTERA_PWM_PDC2      PG2DC
#define INVERTERA_PWM_PDC3      PG4DC
        
#define INVERTERA_PWM_PHASE1    PG1PHASE 
#define INVERTERA_PWM_PHASE2    PG2PHASE
#define INVERTERA_PWM_PHASE3    PG4PHASE  
        
#define INVERTERA_PWM_TRIGA      PG1TRIGA 
#define INVERTERA_PWM_TRIGB      PG1TRIGB   
#define INVERTERA_PWM_TRIGC      PG1TRIGC         
        
#define _PWMInterrupt           _PWM1Interrupt
#define ClearPWMIF()            _PWM1IF = 0        
        
/* Specify PWM Frequency in Hertz */
#define PWMFREQUENCY_HZ         20000
/* Specify dead time in micro seconds */
#define DEADTIME_MICROSEC       1.0
/* Specify PWM Period in seconds, (1/ PWMFREQUENCY_HZ) */
#define LOOPTIME_SEC            0.00005
/* Specify PWM Period in micro seconds */
#define LOOPTIME_MICROSEC       50
        
// Specify bootstrap charging time in Seconds (mention at least 10mSecs)
#define BOOTSTRAP_CHARGING_TIME_SECS 0.01
  
// Calculate Bootstrap charging time in number of PWM Half Cycles
#define BOOTSTRAP_CHARGING_COUNTS (uint16_t)((BOOTSTRAP_CHARGING_TIME_SECS/LOOPTIME_SEC )* 2)
        
// Definition to enable or disable PWM Fault
#define ENABLE_PWM_FAULT
        
#define DDEADTIME               (uint16_t)(DEADTIME_MICROSEC*FOSC_MHZ)
// loop time in terms of PWM clock period
#define LOOPTIME_TCY            (uint16_t)(((LOOPTIME_MICROSEC*FOSC_MHZ)/2)-1)

/* Specify ADC Triggering Point w.r.t PWM Output for sensing Motor Currents */
#define ADC_SAMPLING_POINT      0x0000
        
#define MIN_DUTY            0x0000

        
// *****************************************************************************
// *****************************************************************************
// Section: Interface Routines
// *****************************************************************************
// *****************************************************************************
void InitPWMGenerators(void);        
        
#ifdef __cplusplus  // Provide C++ Compatibility
    }
#endif
#endif      // end of PWM_H


