88 lines
1.8 KiB
C++
88 lines
1.8 KiB
C++
/*
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* ads1210.cpp
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*
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* Created on: Nov 2, 2014
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* Author: wn
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*/
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// #include <Arduino.h>
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#include <SPI.h>
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#include "Streaming.h"
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#include "ads1210.h"
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ADS1210::ADS1210() {
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}
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void ADS1210::enableCS() const {
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digitalWrite(m_csPin, LOW);
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}
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void ADS1210::disableCS() const {
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digitalWrite(m_csPin, HIGH);
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}
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void ADS1210::writeCMR () const {
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uint8_t instr = INSR_MB1 | INSR_MB0 | ADDR_CMR3;
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enableCS();
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SPI.transfer(instr);
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SPI.transfer(m_cmrWriteShadow[3]);
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SPI.transfer(m_cmrWriteShadow[2]);
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SPI.transfer(m_cmrWriteShadow[1]);
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SPI.transfer(m_cmrWriteShadow[0]);
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disableCS();
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}
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void ADS1210::readCMR () {
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uint8_t instr = INSR_MB1 | INSR_MB0 | ADDR_CMR3 | INSR_RW;
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enableCS();
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SPI.transfer(instr);
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m_cmrReadShadow[3] = SPI.transfer(0);
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m_cmrReadShadow[2] = SPI.transfer(0);
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m_cmrReadShadow[1] = SPI.transfer(0);
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m_cmrReadShadow[0] = SPI.transfer(0);
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disableCS();
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}
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void ADS1210::begin(uint8_t csPin) {
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static bool onlyOnce = false;
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m_csPin = csPin;
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// initialization of SPI
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pinMode(m_csPin, OUTPUT);
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digitalWrite(m_csPin, HIGH);
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SPI.begin();
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SPI.setBitOrder(MSBFIRST);
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SPI.setClockDivider(SPI_CLOCK_DIV16);
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SPI.setDataMode(SPI_MODE1);
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if (! onlyOnce) {
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// initialization of the ADS1210
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m_cmrWriteShadow[3] |= CMR_SDL;
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m_cmrWriteShadow[2] = 0;
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m_cmrWriteShadow[1] = 0;
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m_cmrWriteShadow[0] = 0;
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writeCMR();
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// onlyOnce = true;
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}
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// static bool toggleRefO = false;
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// if (toggleRefO) {
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// toggleRefO = false;
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// m_cmrWriteShadow[3] |= CMR_REFO;
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// } else {
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// toggleRefO = true;
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// m_cmrWriteShadow[3] &= ~CMR_REFO;
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// }
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// writeCMR();
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readCMR();
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Serial << "CMR3: " << _HEX(m_cmrReadShadow[3]) <<
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", CMR2: " << _HEX(m_cmrReadShadow[2]) <<
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", CMR1: " << _HEX(m_cmrReadShadow[1]) <<
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", CMR0: " << _HEX(m_cmrReadShadow[0]) << endl;
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}
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