diff options
author | Vishnu Easwaran E | 2020-05-14 21:53:38 +0530 |
---|---|---|
committer | Vishnu Easwaran E | 2020-05-14 21:53:38 +0530 |
commit | 1992b259a6323d90f69a02101ff83715922b972f (patch) | |
tree | 1dc03e5d7bcd44ee4dbc7a121c4e902a6ad5b1d8 /Resources/OpenPLCv2/firmware/ADC.test.arduino/one/libraries | |
parent | 577d86de54b99dc785cbce1824f9cafbf961532b (diff) | |
download | OpenPLC-1992b259a6323d90f69a02101ff83715922b972f.tar.gz OpenPLC-1992b259a6323d90f69a02101ff83715922b972f.tar.bz2 OpenPLC-1992b259a6323d90f69a02101ff83715922b972f.zip |
[vishnu] Replaced modules and OpenPLCv2 with gitmodules.
Diffstat (limited to 'Resources/OpenPLCv2/firmware/ADC.test.arduino/one/libraries')
-rwxr-xr-x | Resources/OpenPLCv2/firmware/ADC.test.arduino/one/libraries/vishnuADC.cpp | 51 | ||||
-rwxr-xr-x | Resources/OpenPLCv2/firmware/ADC.test.arduino/one/libraries/vishnuADC.h | 121 |
2 files changed, 0 insertions, 172 deletions
diff --git a/Resources/OpenPLCv2/firmware/ADC.test.arduino/one/libraries/vishnuADC.cpp b/Resources/OpenPLCv2/firmware/ADC.test.arduino/one/libraries/vishnuADC.cpp deleted file mode 100755 index 01d6931..0000000 --- a/Resources/OpenPLCv2/firmware/ADC.test.arduino/one/libraries/vishnuADC.cpp +++ /dev/null @@ -1,51 +0,0 @@ -#include "vishnuADC.h" -#include "Arduino.h" - -/** - * Constructor of the class - * @param io_pin_cs a byte indicating the pin to be use as the chip select pin (CS) - */ -ADS1118::ADS1118(uint8_t io_pin_cs) { - cs = io_pin_cs; -} - -/** - * This method initialize the SPI port and the config register - */ -void ADS1118::begin() { - pinMode(cs, OUTPUT); - digitalWrite(cs, HIGH); - SPI.begin(); - SPI.beginTransaction(SPISettings(SCLK, MSBFIRST, SPI_MODE1)); - configRegister.bits={RESERVED, VALID_CFG, PULLUP, ADC_MODE, RATE_8SPS, SINGLE_SHOT, FSR_0256, DIFF_0_1, START_NOW}; //Default values -} - -/** - * Getting the temperature in degrees celsius from the internal sensor of the ADS1118 - * @return A double (32bits) containing the temperature in degrees celsius of the internal sensor - */ -double ADS1118::getTemperature() { - uint16_t convRegister; - uint8_t dataMSB, dataLSB, configMSB, configLSB, count=0; - if(lastSensorMode==TEMP_MODE) - count=1; //Lucky you! We don't have to read twice the sensor - else - configRegister.bits.sensorMode=TEMP_MODE; //Sorry but we will have to read twice the sensor - do{ - digitalWrite(cs, LOW); - dataMSB = SPI.transfer(configRegister.byte.msb); - dataLSB = SPI.transfer(configRegister.byte.lsb); - configMSB = SPI.transfer(configRegister.byte.msb); - configLSB = SPI.transfer(configRegister.byte.lsb); - digitalWrite(cs, HIGH); - for(int i=0;i<CONV_TIME[configRegister.bits.rate];i++) //Lets wait the conversion time - delayMicroseconds(1000); - count++; - }while (count<=1); //We make two readings because the second reading is the temperature. - convRegister = ((dataMSB << 8) | (dataLSB))>>4; - if((convRegister<<2) >= 0x8000){ - convRegister=((~convRegister)>>2)+1; //Converting to right-justified and applying binary twos complement format - return (double)(convRegister*0.03125*-1); - } - return (double)convRegister*0.03125; -}
\ No newline at end of file diff --git a/Resources/OpenPLCv2/firmware/ADC.test.arduino/one/libraries/vishnuADC.h b/Resources/OpenPLCv2/firmware/ADC.test.arduino/one/libraries/vishnuADC.h deleted file mode 100755 index 33b0fb5..0000000 --- a/Resources/OpenPLCv2/firmware/ADC.test.arduino/one/libraries/vishnuADC.h +++ /dev/null @@ -1,121 +0,0 @@ -#ifndef vishnuADC -#define vishnuADC - -#include "Arduino.h" -#include <SPI.h> - -/** -* Union representing the "config register" in 3 ways: -* bits, word (16 bits) and nibbles (4 bits) -* (See the datasheet [1] for more information) -*/ -///Union configuration register -union Config { - ///Structure of the config register of the ADS1118. (See datasheet [1]) - struct { - uint8_t reserved:1; ///< "Reserved" bit - uint8_t noOperation:2; ///< "NOP" bits - uint8_t pullUp:1; ///< "PULL_UP_EN" bit - uint8_t sensorMode:1; ///< "TS_MODE" bit - uint8_t rate:3; ///< "DR" bits - uint8_t operatingMode:1;///< "MODE" bit - uint8_t pga:3; ///< "PGA" bits - uint8_t mux:3; ///< "MUX" bits - uint8_t singleStart:1; ///< "SS" bit - } bits; - uint16_t word; ///< Representation in word (16-bits) format - struct { - uint8_t lsb; ///< Byte LSB - uint8_t msb; ///< Byte MSB - } byte; ///< Representation in bytes (8-bits) format -}; - -/** - * Class representing the ADS1118 sensor chip - * @author Alvaro Salazar <alvaro@denkitronik.com> - */ -class ADS1118 { - public: - ADS1118(uint8_t io_pin_cs); ///< Constructor - void begin(); ///< This method initialize the SPI port and the config register - double getTemperature(); ///< Getting the temperature in degrees celsius from the internal sensor of the ADS1118 - uint16_t getADCValue(uint8_t inputs);///< Getting a sample from the specified input - double getMilliVolts(uint8_t inputs);//< Getting the millivolts from the specified inputs - double getMilliVolts(); ///< Getting the millivolts from the settled inputs - void decodeConfigRegister(union Config configRegister); ///< Decoding a configRegister structure and then print it out to the Serial port - void setSamplingRate(uint8_t samplingRate);///< Setting the sampling rate specified in the config register - void setFullScaleRange(uint8_t fsr);///< Setting the full scale range in the config register - void setContinuousMode(); ///< Setting to continuous adquisition mode - void setSingleShotMode(); ///< Setting to single shot adquisition and power down mode - void disablePullup(); ///< Disabling the internal pull-up resistor of the DOUT pin - void enablePullup(); ///< Enabling the internal pull-up resistor of the DOUT pin - void setInputSelected(uint8_t input);///< Setting the inputs to be adquired in the config register. - //Input multiplexer configuration selection for bits "MUX" - //Differential inputs - const uint8_t DIFF_0_1 = 0b000; ///< Differential input: Vin=A0-A1 - const uint8_t DIFF_0_3 = 0b001; ///< Differential input: Vin=A0-A3 - const uint8_t DIFF_1_3 = 0b010; ///< Differential input: Vin=A1-A3 - const uint8_t DIFF_2_3 = 0b011; ///< Differential input: Vin=A2-A3 - //Single ended inputs - const uint8_t AIN_0 = 0b100; ///< Single ended input: Vin=A0 - const uint8_t AIN_1 = 0b101; ///< Single ended input: Vin=A1 - const uint8_t AIN_2 = 0b110; ///< Single ended input: Vin=A2 - const uint8_t AIN_3 = 0b111; ///< Single ended input: Vin=A3 - - union Config configRegister; ///< Config register - - //Bit constants - const long int SCLK = 1000000;///< ADS1118 SCLK frequency: 4000000 Hz Maximum for ADS1018 (4Mhz) - - // Used by "SS" bit - const uint8_t START_NOW = 1; ///< Start of conversion in single-shot mode - - // Used by "TS_MODE" bit - const uint8_t ADC_MODE = 0; ///< External (inputs) voltage reading mode - const uint8_t TEMP_MODE = 1; ///< Internal temperature sensor reading mode - - // Used by "MODE" bit - const uint8_t CONTINUOUS = 0; ///< Continuous conversion mode - const uint8_t SINGLE_SHOT = 1; ///< Single-shot conversion and power down mode - - // Used by "PULL_UP_EN" bit - const uint8_t PULLUP = 1; ///< Internal pull-up resistor enabled for DOUT ***DEFAULT - const uint8_t NO_PULLUP = 0; ///< Internal pull-up resistor disabled - - // Used by "NOP" bits - const uint8_t VALID_CFG = 0b01; ///< Data will be written to Config register - const uint8_t NO_VALID_CFG= 0b00; ///< Data won't be written to Config register - - // Used by "Reserved" bit - const uint8_t RESERVED = 1; ///< Its value is always 1, reserved - - /*Full scale range (FSR) selection by "PGA" bits. - [Warning: this could increase the noise and the effective number of bits (ENOB). See tables above]*/ - const uint8_t FSR_6144 = 0b000; ///< Range: ±6.144 v. LSB SIZE = 187.5μV - const uint8_t FSR_4096 = 0b001; ///< Range: ±4.096 v. LSB SIZE = 125μV - const uint8_t FSR_2048 = 0b010; ///< Range: ±2.048 v. LSB SIZE = 62.5μV ***DEFAULT - const uint8_t FSR_1024 = 0b011; ///< Range: ±1.024 v. LSB SIZE = 31.25μV - const uint8_t FSR_0512 = 0b100; ///< Range: ±0.512 v. LSB SIZE = 15.625μV - const uint8_t FSR_0256 = 0b111; ///< Range: ±0.256 v. LSB SIZE = 7.8125μV - - /*Sampling rate selection by "DR" bits. - [Warning: this could increase the noise and the effective number of bits (ENOB). See tables above]*/ - const uint8_t RATE_8SPS = 0b000; ///< 8 samples/s, Tconv=125ms - const uint8_t RATE_16SPS = 0b001; ///< 16 samples/s, Tconv=62.5ms - const uint8_t RATE_32SPS = 0b010; ///< 32 samples/s, Tconv=31.25ms - const uint8_t RATE_64SPS = 0b011; ///< 64 samples/s, Tconv=15.625ms - const uint8_t RATE_128SPS = 0b100; ///< 128 samples/s, Tconv=7.8125ms - const uint8_t RATE_250SPS = 0b101; ///< 250 samples/s, Tconv=4ms - const uint8_t RATE_475SPS = 0b110; ///< 475 samples/s, Tconv=2.105ms - const uint8_t RATE_860SPS = 0b111; ///< 860 samples/s, Tconv=1.163ms - // const uint8_t RATE_3300SPS = 0b110; ///< 860 samples/s, Tconv=1.163ms - -private: - uint8_t lastSensorMode=3; ///< Last sensor mode selected (ADC_MODE or TEMP_MODE or none) - uint8_t cs; ///< Chip select pin (choose one) - const float pgaFSR[8] = {6.144, 4.096, 2.048, 1.024, 0.512, 0.256, 0.256, 0.256}; - const uint8_t CONV_TIME[8]={125, 63, 32, 16, 8, 4, 3, 2}; ///< Array containing the conversions time in ms - -}; - -#endif |