init_dac.c

/*
 * File:   init_opa.c
 * Author: M91406
 *
 * Created on May 19, 2020, 1:19 PM
 */
 
 
#include <xc.h> // include processor files - each processor file is guarded.  
#include <stdint.h> // include standard integer types header file
#include <stdbool.h> // include standard boolean types header file
 
#include "config/hal.h"
#include "init_dac.h"
#include "power_control/devices/dev_buck_typedef.h"
 
 
volatile uint16_t sysDacModule_Initialize(void) 
{
    volatile uint16_t retval=1;
    volatile struct P33C_DAC_MODULE_s* dac;
 
    dac = p33c_DacModule_GetHandle();
    retval &= p33c_DacModule_Dispose();
    retval &= p33c_DacModule_ConfigWrite(dacModuleDefault);
 
    return (retval);
    
}
 
 
volatile uint16_t sysDacOutput_Initialize(volatile uint16_t dacInstance)
{
    volatile uint16_t retval=1;
    volatile struct P33C_DAC_INSTANCE_s* dac;
    
    dac = p33c_DacInstance_GetHandle(dacInstance);
    retval &= p33c_DacInstance_Dispose(dacInstance);
    
    dac->DACxCONL.bits.DACOEN = 1; // Enable DAC output pin
    dac->DACxCONH.bits.TMCB  = BUCK_LEB_PERIOD;
    dac->DACxDATH.value = 0x07FF; // Set board current reference to VDD/2 (~1.650 V)
    
    return (retval);
}
 
 
volatile uint16_t sysDacOutput_Enable(volatile uint16_t dacInstance) {
    
    volatile uint16_t retval=1;
    volatile struct P33C_DAC_MODULE_s* dacmod;
    volatile struct P33C_DAC_INSTANCE_s* dacinst;
    
    // Capture DAC module SFR set
    dacmod = p33c_DacModule_GetHandle();
    dacmod->DacModuleCtrl1L.bits.DACON = true; // Ensure DAC module is enabled
 
    // Capture specified DAC instance SFR set
    dacinst = p33c_DacInstance_GetHandle(dacInstance);
    dacinst->DACxCONL.bits.DACEN = true; // Enable DAC instance
    dacinst->DACxCONL.bits.DACOEN = true; // Enable DAC output pin
    
    return (retval);
}
 
 
volatile uint16_t sysDacOutput_Disable(volatile uint16_t dacInstance) {
    
    volatile uint16_t retval=1;
    volatile struct P33C_DAC_INSTANCE_s* dacinst;
    
    // Capture specified DAC instance SFR set
    dacinst = p33c_DacInstance_GetHandle(dacInstance);
    dacinst->DACxCONL.bits.DACOEN = false; // Disable DAC output pin
    dacinst->DACxCONL.bits.DACEN = false; // Disable DAC instance
 
    return (retval);
} // end of group dac-initialization
 
// end of file