/*
 * ads1210.cpp
 *
 *  Created on: Nov 2, 2014
 *      Author: wn
 */

// #include <Arduino.h>
#include <SPI.h>
#include "ads1210.h"

ADS1210::ADS1210(uint8_t csPin) : m_csPin(csPin) {
}

void ADS1210::enableCS() const {
	digitalWrite(m_csPin, LOW);
}
void ADS1210::disableCS() const {
	digitalWrite(m_csPin, HIGH);
}

void ADS1210::writeCMR (const uint8_t cmr3, const uint8_t cmr2,
		                const uint8_t cmr1, const uint8_t cmr0) const {
	uint8_t instr = INSR_MB1 | INSR_MB0 | ADDR_CMR3;
	enableCS();
	SPI.transfer(instr);
	SPI.transfer(cmr3);
	SPI.transfer(cmr2);
	SPI.transfer(cmr1);
	SPI.transfer(cmr0);
	disableCS();

}

void ADS1210::begin() const {
	// initialization of SPI
	pinMode(m_csPin, OUTPUT);
	digitalWrite(m_csPin, HIGH);
	SPI.begin();
	SPI.setBitOrder(MSBFIRST);
	SPI.setClockDivider(SPI_CLOCK_DIV2);
	SPI.setDataMode(SPI_MODE0);

	// initialization of the ADS1210
}