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Diffstat (limited to 'Resources/OpenPLCv2/firmware/ADC.test.arduino/vishnuADC.h')
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1 files changed, 0 insertions, 121 deletions
diff --git a/Resources/OpenPLCv2/firmware/ADC.test.arduino/vishnuADC.h b/Resources/OpenPLCv2/firmware/ADC.test.arduino/vishnuADC.h deleted file mode 100644 index 2f2e7c5..0000000 --- a/Resources/OpenPLCv2/firmware/ADC.test.arduino/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 = 4000000;///< 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 |