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61b90393dcebfd18a2b5d31ad01ea9c845d4c8a5
ThermometerPro/thermometer.cpp
hg 61b90393dc store config in eeprom
2014-03-04 18:48:45 +01:00

348 lines
12 KiB
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#include "thermometer.h"
#include "fatal.h"
#include "AD7190.h"
#include "Streaming.h"
#include "Config.h"
const bool COMPILE_TIME_DEBUG = false;
const float INVALID_TEMPERATURE = -300.0;
String ThermConfig::exec(String params) {
String res = "done";
int space = params.indexOf(' ');
String p1 = "";
char pb1[128];
if (space != -1) {
params.toCharArray(pb1, 128, space+1);
}
if (params.startsWith("pm ") && (space != -1)) {
unsigned long v = atol(pb1);
m_thermometer->setPeriodMeasure(v);
} else if (params.startsWith("a ") && (space != -1)) {
float v = atof(pb1);
m_thermometer->setAlpha(v);
} else if (params.startsWith("debug ") && (space != -1)) {
m_thermometer->m_debug = (strcmp(pb1, "on") == 0);
} else if (params.startsWith("info ") && (space != -1)) {
m_thermometer->m_info = (strcmp(pb1, "on") == 0);
} else if (params.equalsIgnoreCase("show")) {
m_stream->print("PeriodMeasure (ms): "); m_stream->print(m_thermometer->getPeriodMeasure()); m_stream->println();
m_stream->print("Alpha: "); m_stream->print(m_thermometer->getAlpha()); m_stream->println();
for (unsigned int i = 0; i < NUM_OF_CHANNELS; i++) {
m_stream->print("Calibration: "); m_stream->print(i); m_stream->print(", ");
m_stream->print(m_thermometer->getCalibrateFactor(i), 6); m_stream->println();
}
m_stream->print("Info: "); m_stream->print(m_thermometer->m_info); m_stream->println();
m_stream->print("Debug: "); m_stream->print(m_thermometer->m_debug); m_stream->println();
m_stream->print("COMPILE_TIME_DEBUG: "); m_stream->print(COMPILE_TIME_DEBUG); m_stream->println();
} else {
res = "subcommand not found";
}
return res;
}
String ThermValues::exec(String params) {
m_stream->print("TimeOuts: "); m_stream->print(m_thermometer->m_timeOutFailureCnt); m_stream->println();
m_stream->print("Cycles: "); m_stream->print(m_thermometer->m_cylceCnt); m_stream->println();
m_stream->print("Period (ms): "); m_stream->print(m_thermometer->getPeriodMeasure()); m_stream->println();
m_stream->print("Alpha: "); m_stream->print(m_thermometer->getAlpha()); m_stream->println();
for (unsigned int i = 0; i < NUM_OF_CHANNELS; i++) {
m_stream->print("index: "); m_stream->print(i); m_stream->print(", ");
m_stream->print("cal: "); m_stream->print(m_thermometer->getCalibrateFactor(i), 6); m_stream->print(", ");
m_stream->print("t: "); m_stream->print(m_thermometer->m_temperature[i]); m_stream->print(", ");
m_stream->print("ts: "); m_stream->print(m_thermometer->m_smoothedTemperature[i]);
m_stream->println();
}
return "done";
}
ThermCalibrate::ThermCalibrate(Thermometer *thermometer) : m_thermometer(thermometer), m_enabled(false),
m_r_cal(1500.0), m_cycles(60) {
}
String ThermCalibrate::exec(String params) {
String res = "done";
int space = params.indexOf(' ');
String p1 = "";
char pb1[128];
if (space != -1) {
params.toCharArray(pb1, 128, space+1);
}
if (params.startsWith("enable ") && (space != -1)) {
m_enabled = true;
} else if (params.startsWith("disable ") && (space != -1)) {
m_enabled = false;
} else if (params.startsWith("help ") && (space != -1)) {
*m_stream << " enable : enable the calibration mode" << endl;
*m_stream << " disable : disable the calibration mode" << endl;
*m_stream << " show : show parameters for calibration process" << endl;
*m_stream << " r : set value of calibration resistor" << endl;
*m_stream << " start : start calibration" << endl;
*m_stream << " stop : stop calibration" << endl;
} else if (params.startsWith("r ") && (space != -1)) {
m_r_cal = atof(pb1);
} else if (params.equalsIgnoreCase("show")) {
*m_stream << " enabled : " << m_enabled << endl;
*m_stream << " r_cal : " << m_r_cal << endl;
*m_stream << " cycles: " << m_cycles << endl;
} else {
res = "subcommand not found";
}
return res;
}
Thermometer::Thermometer() : m_period(DEFAULT_PERIOD), m_periodMillis(DEFAULT_PERIOD),
m_debug(DEBUG), m_info(INFO),
thermConfig(this), thermValues(this),
m_timeOutFailureCnt(0), m_cylceCnt(0), m_alpha(1.0)
{
for (unsigned int i = 0; i < NUM_OF_CHANNELS; i++) {
m_lastSmoothedTemperature[i] = INVALID_TEMPERATURE;
}
}
void Thermometer::setPeriodMeasure(unsigned long p) {
Config::setULong(Config::THERMOMETER_PERIOD, p);
m_periodMillis = p;
m_period = Metro(p);
}
unsigned long Thermometer::getPeriodMeasure() {
return m_periodMillis;
}
void Thermometer::setAlpha(float a) {
Config::setFloat(Config::THERMOMETER_ALPHA, a);
m_alpha = a;
}
float Thermometer::getAlpha() {
return m_alpha;
}
void Thermometer::setCalibrateFactor(unsigned int i, float c) {
Config::setFloat(Config::THERMOMETER_CAL[i], c);
m_calibrateFactor[i] = c;
}
float Thermometer::getCalibrateFactor(unsigned int i) {
return m_calibrateFactor[i];
}
float pt1000(float r) {
return (r / PT1000_R0 - 1) / PT1000_Coeff;
}
void Thermometer::setTemperature(unsigned int index, float t) {
m_temperature[index] = t;
if (m_lastSmoothedTemperature[index] == INVALID_TEMPERATURE) {
m_smoothedTemperature[index] = t;
} else {
m_smoothedTemperature[index] = getAlpha() * t + (1 - m_alpha) * m_lastSmoothedTemperature[index];
}
if (m_debug || m_info) {
Serial.print("setTemperature: i="); Serial.print(index); Serial.print(", t="); Serial.print(t);
Serial.print(", t_smoothed="); Serial.print(m_smoothedTemperature[index]);
Serial.println();
}
m_lastSmoothedTemperature[index] = m_smoothedTemperature[index];
}
void Thermometer::prepareAdc() {
unsigned long oldRegValue = AD7190_GetRegisterValue(AD7190_REG_CONF, 3, 1);
oldRegValue &= ~(AD7190_CONF_CHAN(0xFF));
unsigned long newRegValue = oldRegValue |
AD7190_CONF_CHAN(1 << AD7190_CH_AIN1P_AINCOM) |
AD7190_CONF_CHAN(1 << AD7190_CH_AIN2P_AINCOM) |
AD7190_CONF_CHAN(1 << AD7190_CH_AIN3P_AINCOM) |
AD7190_CONF_CHAN(1 << AD7190_CH_AIN4P_AINCOM);
if (COMPILE_TIME_DEBUG && m_debug) { Serial.print("CONF: "); Serial.print(newRegValue, 16); Serial.println(); }
AD7190_SetRegisterValue(AD7190_REG_CONF, newRegValue, 3, 1);
newRegValue = AD7190_MODE_SEL(AD7190_MODE_IDLE) |
AD7190_MODE_CLKSRC(AD7190_CLK_INT) |
AD7190_MODE_REJ60 |
AD7190_MODE_DAT_STA |
AD7190_MODE_RATE(0x060);
if (COMPILE_TIME_DEBUG && m_debug) { Serial.print("MODE: "); Serial.print(newRegValue, 16); Serial.println(); }
AD7190_SetRegisterValue(AD7190_REG_MODE, newRegValue, 3, 1);
}
void Thermometer::startSingleConv() {
unsigned long oldRegValue = AD7190_GetRegisterValue(AD7190_REG_MODE, 3, 0);
oldRegValue &= ~(AD7190_MODE_SEL(0x07));
unsigned long newRegValue = oldRegValue | AD7190_MODE_SEL(AD7190_MODE_SINGLE);
if (COMPILE_TIME_DEBUG && m_debug) { Serial.print("MODE: "); Serial.print(newRegValue, 16); Serial.println(); }
AD7190_SetRegisterValue(AD7190_REG_MODE, newRegValue, 3, 0);
}
void Thermometer::begin(CmdServer *cmdServer) {
thermConfig.registerYourself(cmdServer);
thermValues.registerYourself(cmdServer);
unsigned char ad7190Status = AD7190_Init();
if (ad7190Status != 1)
fatal(FATAL_ADC_NOTFOUND);
AD7190_RangeSetup(1, AD7190_CONF_GAIN_1);
AD7190_Calibrate(AD7190_MODE_CAL_INT_ZERO, AD7190_CH_AIN4P_AINCOM);
AD7190_Calibrate(AD7190_MODE_CAL_INT_FULL, AD7190_CH_AIN4P_AINCOM);
AD7190_Calibrate(AD7190_MODE_CAL_INT_ZERO, AD7190_CH_AIN3P_AINCOM);
AD7190_Calibrate(AD7190_MODE_CAL_INT_FULL, AD7190_CH_AIN3P_AINCOM);
AD7190_Calibrate(AD7190_MODE_CAL_INT_ZERO, AD7190_CH_AIN2P_AINCOM);
AD7190_Calibrate(AD7190_MODE_CAL_INT_FULL, AD7190_CH_AIN2P_AINCOM);
AD7190_Calibrate(AD7190_MODE_CAL_INT_ZERO, AD7190_CH_AIN1P_AINCOM);
AD7190_Calibrate(AD7190_MODE_CAL_INT_FULL, AD7190_CH_AIN1P_AINCOM);
if (! Config::isInitialized()) {
Serial << "Initializing EEPROM" << endl;
Config::setFloat(Config::THERMOMETER_ALPHA, 1.0);
Config::setULong(Config::THERMOMETER_PERIOD, 1000);
for (int i = 0; i < 4; i++) {
Config::setFloat(Config::THERMOMETER_CAL[i], 1.0);
}
Config::setMagic();
}
setAlpha(Config::getFloat(Config::THERMOMETER_ALPHA));
setPeriodMeasure(Config::getULong(Config::THERMOMETER_PERIOD));
for (int i = 0; i < 4; i++) {
setCalibrateFactor(i, Config::getFloat(Config::THERMOMETER_CAL[i]));
}
//setCalibrateFactor(0, 1.002999);
//setCalibrateFactor(1, 1.001804);
//setCalibrateFactor(2, 1.000794);
//setCalibrateFactor(3, 1.001071);
// prepare
prepareAdc();
}
void Thermometer::exec() {
static uint8_t state = 0;
static unsigned long timeOutCnt;
unsigned long command;
float r;
static unsigned int channelCnt;
switch (state) {
case 0:
if (COMPILE_TIME_DEBUG && m_debug) { Serial.println(); }
if (COMPILE_TIME_DEBUG && m_debug) { Serial.println("State 0"); }
// start conversion
SPI_Enable(AD7190_SLAVE_ID);
startSingleConv();
state = 1;
if (COMPILE_TIME_DEBUG && m_debug) { Serial.println("Switching to State 1"); }
timeOutCnt = CONV_TIMEOUT;
m_cylceCnt++;
channelCnt = 0;
break;
case 1:
if (timeOutCnt == 0) {
state = 9;
} else if (digitalRead(MISO) != HIGH) {
unsigned long n = AD7190_GetRegisterValue(AD7190_REG_DATA, 4, 0);
unsigned int channelIndex = (n & 0xff) - 4;
unsigned long adcValue = (n & 0xffffff00) >> 8;
m_n[channelIndex] = adcValue;
if (COMPILE_TIME_DEBUG && m_debug) { Serial.print("m_n["); Serial.print(channelIndex); Serial.print("]="); Serial.print(m_n[channelIndex], 16); Serial.println(); }
channelCnt++;
if (channelCnt >= 4) {
state = 10;
if (COMPILE_TIME_DEBUG && m_debug) { Serial.println("Switching to State 10"); }
}
timeOutCnt = CONV_TIMEOUT;
}
timeOutCnt--;
break;
case 9:
if (COMPILE_TIME_DEBUG && m_debug) { Serial.println("State 9"); }
// end cycle
SPI_Disable(AD7190_SLAVE_ID);
// increase failure counter
m_timeOutFailureCnt++;
state = 0;
break;
case 10:
if (COMPILE_TIME_DEBUG && m_debug) { Serial.println("State 10"); }
SPI_Disable(AD7190_SLAVE_ID);
for (unsigned int i = 0; i < NUM_OF_CHANNELS; i++) {
if (COMPILE_TIME_DEBUG && m_debug) { Serial.print("i="); Serial.print(i); Serial.print(", "); }
if (COMPILE_TIME_DEBUG && m_debug) { Serial.print("m_n="); Serial.print(m_n[i]); Serial.print(", "); }
if (COMPILE_TIME_DEBUG && m_debug) { Serial.print(""); Serial.print((m_n[i] - ((i == 3) ? 0 : m_n[i + 1]))); Serial.print(", "); }
if (COMPILE_TIME_DEBUG && m_debug) { Serial.print("calibrateFactor="); Serial.print(getCalibrateFactor(i), 6); Serial.print(", "); }
float r = (((float)(m_n[i] - ((i == 3) ? 0 : m_n[i + 1]))) / ((float)N_MAX)) * R_REF * getCalibrateFactor(i);
if (COMPILE_TIME_DEBUG && m_debug) { Serial.print("r="); Serial.print(r); Serial.print(", "); }
float t = pt1000(r);
if (COMPILE_TIME_DEBUG && m_debug) { Serial.print("t="); Serial.print(t); Serial.print(", "); }
if (COMPILE_TIME_DEBUG && m_debug) { Serial.println(); }
setTemperature(i, t);
}
if (COMPILE_TIME_DEBUG && m_debug) { Serial.print("timeOuts="); Serial.print(m_timeOutFailureCnt); Serial.print(", "); }
if (COMPILE_TIME_DEBUG && m_debug) { Serial.print("cycles="); Serial.print(m_cylceCnt); Serial.print(", "); }
if (COMPILE_TIME_DEBUG && m_debug) { Serial.println(); }
if (COMPILE_TIME_DEBUG && m_debug) { Serial.println("Switching to state 11"); }
state = 11;
break;
case 11:
if (m_period.check() == 1)
state = 0;
break;
default:
fatal(FATAL_ILLEGAL_STATE);
break;
}
}
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