DA.cpp

/*
 * DA.cpp
 *
 *  Created on: Feb 9, 2017
 *      Author: nem1
 *  Modified on: Mar 13, 2019
 *		Author: Nathan Klapstien
 */

#include "DA.h"
#include <sim.h>
#include <iosys.h>

DA::DA() {
	// TODO Auto-generated constructor stub
}

DA::~DA() {
	// TODO Auto-generated destructor stub
}

/**
 * Initializes the DA converters
 */
void DA::Init(void) {
	BYTE err = OS_NO_ERR;
	err = display_error("DA::Init Sem", OSSemInit(&DA_lock_sem,1));

	sim1.ccm.dactsr = 0x0;        // DAC trigger select register in CCM
	sim2.adc.cal = ADC_CAL_DAC0;  // Selects the source of the ADCA3 input as DAC0 output.
	sim2.dac[0].data = 0;         // Init data value to 0

	sim1.ccm.misccr2 &= ~(MISCCR2_ADC3EN);   // Disable ADC3 function on J2.9
	sim1.ccm.misccr2 |= MISCCR2_DAC0SEL;     // Enable DAC0 output drive on J2.9/Pin 4 of the
											 // AD/DA 10 pin connector

	sim2.dac[0].cr &= ~DAC_CR_PDN;           // Enable DAC0 output
}

/**
 * Method for sending output to the DA converter.
 */
void DA::DACOutput(float millivolts) {
	sim2.dac[0].data = (int) millivolts;
}

/**
* Manages resource sharing of DAC0 to make sure
* only one task can use the DAC at any time. Call lock to make use of the
* DA converter
*
* @note Call Unlock once the DAC has finished writing.
*/
void DA::Lock(void) {
	display_error("DA::Lock ", OSSemPend(&DA_lock_sem, WAIT_FOREVER));
}

/**
 * Manages resource sharing of DAC0 to make sure
 * only one task can use the DAC at any time. Call lock to make use of the
 * DA converter
 *
 * @note Call Unlock once the DAC has finished writing.
 */
void DA::Unlock(void) {
	display_error("DA::Unlock ", OSSemPost(&DA_lock_sem));
}