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Diff for: ‎ADS1231.cpp

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#include <Arduino.h>
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#include <limits.h>
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#include "ADS1231.h"
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unsigned long ads1231_last_millis = 0;
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int ads1231_offset = 0;
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/*
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* Initialize the interface pins
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*/
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ADS1231::ADS1231(uint8_t clkPin, uint8_t dataPin)
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{
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pData = dataPin;
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pClk = clkPin;
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}
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bool ADS1231::begin() {
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// Init clock pin
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pinMode(pClk, OUTPUT);
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// Init data pin
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pinMode(pData, INPUT);
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// Enable pullup to get a consistent state in case of disconnect
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digitalWrite(pData, HIGH);
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// Set CLK low to get the ADS1231 out of suspend
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digitalWrite(pClk, 0);
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if ((pClk > 1) && (pClk < 14) &&
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(pData > 1) && (pData < 14) &&
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(pData != pClk)) {
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return 1;
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} else {
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return 0;
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}
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}
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/*
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* GET raw ADC value. This call is blocking. up to 100ms in 10SPS, 12.5 ms in 80 SPS
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*/
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int ADS1231::getValue(long& val)
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{
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int i=0;
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unsigned long start;
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/* A high to low transition on the data pin for data ready*/
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start=millis();
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while(digitalRead(pData) != HIGH)
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{
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if(millis() > start+150)
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return ADS1231_ERROR_HIGH_TIMEOUT; // Timeout waiting for HIGH
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}
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start=millis();
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while(digitalRead(pData) != LOW)
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{
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if(millis() > start+150)
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return ADS1231_ERROR_LOW_TIMEOUT; // Timeout waiting for LOW
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}
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ads1231_last_millis = millis();
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// Read 24 bits
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for(i=23 ; i >= 0; i--) {
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digitalWrite(pClk, HIGH);
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val = (val << 1) + digitalRead(pData);
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digitalWrite(pClk, LOW);
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}
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/* Accomodate for sign bit */
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val = (val << 8) / 256;
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/* Force data pin low to catch rising edge on next read*/
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digitalWrite(pClk, HIGH);
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digitalWrite(pClk, LOW);
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return 1; // Success
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}
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Diff for: ‎ADS1231.h

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/*
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* Library for the TI ADS1231 24-Bit Analog-to-Digital Converter
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*/
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#ifndef ADS1231_H
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#define ADS1231_H
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#define ADS1231_ERROR_HIGH_TIMEOUT -1
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#define ADS1231_ERROR_LOW_TIMEOUT -2
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class ADS1231 {
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public:
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ADS1231(uint8_t clkPin,uint8_t dataPin);
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int getValue(long &val);
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bool begin();
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private:
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uint8_t pData;
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uint8_t pClk;
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};
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#endif

Diff for: ‎Board/pins_arduino.txt

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/*
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Copyright (c) 2014-2015 Arduino LLC. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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// API compatibility
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#include "variant.h"
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Diff for: ‎Board/variant.txt

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/*
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Copyright (c) 2016 SODAQ. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "variant.h"
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/*
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* Pins descriptions
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*/
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const PinDescription g_APinDescription[]=
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{
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// 0..3 Main IO Pins (D0-D3) Digital Properties
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{ PORTA, 2, PIO_DIGITAL, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_2 },
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{ PORTA, 3, PIO_DIGITAL, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_3 },
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{ PORTB, 8, PIO_TIMER, (PIN_ATTR_DIGITAL | PIN_ATTR_PWM | PIN_ATTR_TIMER), No_ADC_Channel, PWM4_CH0, TC4_CH0, EXTERNAL_INT_8 }, // TC4/WO[0]
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{ PORTB, 9, PIO_TIMER, (PIN_ATTR_DIGITAL | PIN_ATTR_PWM | PIN_ATTR_TIMER), No_ADC_Channel, PWM4_CH1, TC4_CH1, EXTERNAL_INT_9 }, // TC4/WO[1]
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// 4..5 Other Digital Pins
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{ PORTA, 21, PIO_INPUT, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_5 }, // ACCEL_INT2
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{ PORTA, 20, PIO_INPUT, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_4 }, // ACCEL_INT1
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// 6..13 Main IO Pins (D6-D13) Digital Properties
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{ PORTA, 6, PIO_TIMER, (PIN_ATTR_DIGITAL | PIN_ATTR_PWM | PIN_ATTR_TIMER), No_ADC_Channel, PWM1_CH0, TCC1_CH0, EXTERNAL_INT_6 }, // TCC1/WO[0]
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{ PORTA, 7, PIO_TIMER, (PIN_ATTR_DIGITAL | PIN_ATTR_PWM | PIN_ATTR_TIMER), No_ADC_Channel, PWM1_CH1, TCC1_CH1, EXTERNAL_INT_7 }, // TCC1/WO[1]
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{ PORTA, 8, PIO_TIMER, (PIN_ATTR_DIGITAL | PIN_ATTR_PWM | PIN_ATTR_TIMER), No_ADC_Channel, PWM0_CH0, TCC0_CH0, EXTERNAL_INT_NMI }, // TCC0/WO[0]
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{ PORTA, 9, PIO_TIMER, (PIN_ATTR_DIGITAL | PIN_ATTR_PWM | PIN_ATTR_TIMER), No_ADC_Channel, PWM0_CH1, TCC0_CH1, EXTERNAL_INT_9 }, // TCC0/WO[1]
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{ PORTA, 10, PIO_TIMER_ALT, (PIN_ATTR_DIGITAL | PIN_ATTR_PWM | PIN_ATTR_TIMER_ALT), No_ADC_Channel, PWM0_CH2, TCC0_CH2, EXTERNAL_INT_10 }, // TCC0/WO[2]
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{ PORTA, 11, PIO_TIMER_ALT, (PIN_ATTR_DIGITAL | PIN_ATTR_PWM | PIN_ATTR_TIMER_ALT), No_ADC_Channel, PWM0_CH3, TCC0_CH3, EXTERNAL_INT_11 }, // TCC0/WO[3]
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{ PORTB, 2, PIO_DIGITAL, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_2 },
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{ PORTB, 3, PIO_DIGITAL, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_3 },
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// 14..21 Other Digital Pins
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{ PORTA, 15, PIO_OUTPUT, (PIN_ATTR_DIGITAL | PIN_ATTR_PWM | PIN_ATTR_TIMER), No_ADC_Channel, PWM3_CH1, TC3_CH1, EXTERNAL_INT_NONE }, // LED_BLUE
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{ PORTB, 10, PIO_OUTPUT, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // SARA_R4XX_TOGGLE
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{ PORTB, 11, PIO_INPUT, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // NC
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{ PORTA, 14, PIO_INPUT, (PIN_ATTR_DIGITAL | PIN_ATTR_PWM | PIN_ATTR_TIMER), No_ADC_Channel, PWM3_CH0, TC3_CH0, EXTERNAL_INT_NONE }, // LED_RED
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{ PORTA, 18, PIO_OUTPUT, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // GPS_ENABLE
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{ PORTA, 16, PIO_INPUT, (PIN_ATTR_DIGITAL | PIN_ATTR_PWM | PIN_ATTR_TIMER), No_ADC_Channel, PWM2_CH0, TCC2_CH0, EXTERNAL_INT_NONE }, // LED_GREEN
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{ PORTB, 22, PIO_INPUT, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE },
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{ PORTA, 17, PIO_INPUT, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_1 }, // GPS_TIMEPULSE
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// 22..33 Main IO Pins Analog Properties
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{ PORTA, 2, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel0, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_2 },
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{ PORTA, 3, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel1, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_3 },
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{ PORTB, 8, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel2, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_8 },
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{ PORTB, 9, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel3, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_9 },
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{ PORTA, 6, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel6, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_6 },
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{ PORTA, 7, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel7, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_7 },
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{ PORTA, 8, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel16, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NMI },
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{ PORTA, 9, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel17, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_9 },
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{ PORTA, 10, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel18, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_10 },
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{ PORTA, 11, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel19, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_11 },
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{ PORTB, 2, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel10, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_2 },
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{ PORTB, 3, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel11, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_3 },
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// 34..36 Other Analog Pins
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{ PORTA, 2, PIO_ANALOG, (PIN_ATTR_ANALOG), DAC_Channel0, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_2 }, // DAC/VOUT
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{ PORTA, 3, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel1, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // AREF
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{ PORTA, 5, PIO_ANALOG, (PIN_ATTR_ANALOG), ADC_Channel5, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // BAT_VOLT
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// 37..38 USB Pins
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{ PORTA, 24, PIO_COM, (PIN_ATTR_NONE), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB_N
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{ PORTA, 25, PIO_COM, (PIN_ATTR_NONE), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB_P
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// 39..40 Serial
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{ PORTB, 3, PIO_SERCOM_ALT, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_3 }, // SERIAL_RX
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{ PORTB, 2, PIO_SERCOM_ALT, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_2 }, // SERIAL_TX
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// 41..42 Serial1
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{ PORTA, 13, PIO_SERCOM, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_13 }, // SERIAL1_RX
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{ PORTA, 12, PIO_SERCOM, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_12 }, // SERIAL1_TX
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// 43..46 SPI
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{ PORTA, 8, PIO_SERCOM, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NMI }, // SPI_MISO
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{ PORTA, 9, PIO_SERCOM, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_9 }, // SPI_SS
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{ PORTA, 10, PIO_SERCOM, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_10 }, // SPI_MOSI
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#ifdef ENABLE_BASE_SPI
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{ PORTA, 7, PIO_SERCOM_ALT, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_7 }, // SPI_SCK
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#else
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{ PORTA, 11, PIO_SERCOM, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_11 }, // SPI_SCK
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#endif
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// 47..48 I2C
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{ PORTA, 22, PIO_SERCOM, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_6 }, // I2C_SDA
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{ PORTA, 23, PIO_SERCOM, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_7 }, // I2C_SCL
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// 49
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{ PORTA, 4, PIO_OUTPUT, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // SARA_ENABLE
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// 50..52
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{ PORTA, 19, PIO_INPUT, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_3 }, // MAG_INT
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{ PORTA, 27, PIO_DIGITAL, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // SARA_TX_ENABLE
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{ PORTA, 28, PIO_DIGITAL, (PIN_ATTR_DIGITAL), No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // BUZZER
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} ;
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const void* g_apTCInstances[TCC_INST_NUM+TC_INST_NUM]={ TCC0, TCC1, TCC2, TC3, TC4, TC5 } ;
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// Multi-serial objects instantiation
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SERCOM sercom0( SERCOM0 ) ; // SPI
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SERCOM sercom1( SERCOM1 ) ;
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SERCOM sercom2( SERCOM2 ) ; // Serial1
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SERCOM sercom3( SERCOM3 ) ; // I2C
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SERCOM sercom4( SERCOM4 ) ;
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SERCOM sercom5( SERCOM5 ) ; // Serial
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Uart Serial(&sercom5, PIN_SERIAL_RX, PIN_SERIAL_TX, PAD_SERIAL_RX, PAD_SERIAL_TX ) ;
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Uart Serial1(&sercom2, PIN_SERIAL1_RX, PIN_SERIAL1_TX, PAD_SERIAL1_RX, PAD_SERIAL1_TX);
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void SERCOM2_Handler()
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{
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Serial1.IrqHandler();
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}
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void SERCOM5_Handler()
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{
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Serial.IrqHandler();
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}
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