A library for ADS1015 and ADS1115 from Texas Instruments.

Fork of ADS1015 by Arve Seljebu

v1.3 - Added ADS1115_REG_CONFIG_DR & m_dataRate Jul 21. 2014 - Corrected m_conversionDelay - Now there is readADC() that returns counts and readADC_V() that returns voltage

Revision:
2:976073ea60df
Parent:
1:a628fdaed351
--- a/Adafruit_ADS1015.h	Wed May 21 13:12:24 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,151 +0,0 @@
-/**************************************************************************/
-/*!
-    @file       Adafruit_ADS1015.h
-    @author     K. Townsend (Adafruit Industries)
-    @license    BSD (see LICENSE.txt)
-    
-    Ported to mbed by Arve Seljebu - arve0.github.io
-
-    This is a library for the Adafruit ADS1015 breakout board
-    ----> https://www.adafruit.com/products/1083
-
-    Adafruit invests time and resources providing this open source code,
-    please support Adafruit and open-source hardware by purchasing
-    products from Adafruit!
-
-    @section  HISTORY
-
-    v1.0   - First release
-    v1.1   - Added ADS1115 support - W. Earl
-    v1.1.1 - Ported to mbed - Arve Seljebu
-    v1.2   - Fixed error in readADC_SingleEnded() sign bit - Sam Berjawi
-*/
-/**************************************************************************/
-
-#include <mbed.h>
-
-/*=========================================================================
-    I2C ADDRESS/BITS
-    -----------------------------------------------------------------------*/
-    #define ADS1015_ADDRESS                 (0x48)    // 1001 000 (ADDR = GND)
-/*=========================================================================*/
-
-/*=========================================================================
-    CONVERSION DELAY (in mS)
-    -----------------------------------------------------------------------*/
-    #define ADS1015_CONVERSIONDELAY         (1)
-    #define ADS1115_CONVERSIONDELAY         (8)
-/*=========================================================================*/
-
-/*=========================================================================
-    POINTER REGISTER
-    -----------------------------------------------------------------------*/
-    #define ADS1015_REG_POINTER_MASK        (0x03)
-    #define ADS1015_REG_POINTER_CONVERT     (0x00)
-    #define ADS1015_REG_POINTER_CONFIG      (0x01)
-    #define ADS1015_REG_POINTER_LOWTHRESH   (0x02)
-    #define ADS1015_REG_POINTER_HITHRESH    (0x03)
-/*=========================================================================*/
-
-/*=========================================================================
-    CONFIG REGISTER
-    -----------------------------------------------------------------------*/
-    #define ADS1015_REG_CONFIG_OS_MASK      (0x8000)
-    #define ADS1015_REG_CONFIG_OS_SINGLE    (0x8000)  // Write: Set to start a single-conversion
-    #define ADS1015_REG_CONFIG_OS_BUSY      (0x0000)  // Read: Bit = 0 when conversion is in progress
-    #define ADS1015_REG_CONFIG_OS_NOTBUSY   (0x8000)  // Read: Bit = 1 when device is not performing a conversion
-
-    #define ADS1015_REG_CONFIG_MUX_MASK     (0x7000)
-    #define ADS1015_REG_CONFIG_MUX_DIFF_0_1 (0x0000)  // Differential P = AIN0, N = AIN1 (default)
-    #define ADS1015_REG_CONFIG_MUX_DIFF_0_3 (0x1000)  // Differential P = AIN0, N = AIN3
-    #define ADS1015_REG_CONFIG_MUX_DIFF_1_3 (0x2000)  // Differential P = AIN1, N = AIN3
-    #define ADS1015_REG_CONFIG_MUX_DIFF_2_3 (0x3000)  // Differential P = AIN2, N = AIN3
-    #define ADS1015_REG_CONFIG_MUX_SINGLE_0 (0x4000)  // Single-ended AIN0
-    #define ADS1015_REG_CONFIG_MUX_SINGLE_1 (0x5000)  // Single-ended AIN1
-    #define ADS1015_REG_CONFIG_MUX_SINGLE_2 (0x6000)  // Single-ended AIN2
-    #define ADS1015_REG_CONFIG_MUX_SINGLE_3 (0x7000)  // Single-ended AIN3
-
-    #define ADS1015_REG_CONFIG_PGA_MASK     (0x0E00)
-    #define ADS1015_REG_CONFIG_PGA_6_144V   (0x0000)  // +/-6.144V range = Gain 2/3
-    #define ADS1015_REG_CONFIG_PGA_4_096V   (0x0200)  // +/-4.096V range = Gain 1
-    #define ADS1015_REG_CONFIG_PGA_2_048V   (0x0400)  // +/-2.048V range = Gain 2 (default)
-    #define ADS1015_REG_CONFIG_PGA_1_024V   (0x0600)  // +/-1.024V range = Gain 4
-    #define ADS1015_REG_CONFIG_PGA_0_512V   (0x0800)  // +/-0.512V range = Gain 8
-    #define ADS1015_REG_CONFIG_PGA_0_256V   (0x0A00)  // +/-0.256V range = Gain 16
-
-    #define ADS1015_REG_CONFIG_MODE_MASK    (0x0100)
-    #define ADS1015_REG_CONFIG_MODE_CONTIN  (0x0000)  // Continuous conversion mode
-    #define ADS1015_REG_CONFIG_MODE_SINGLE  (0x0100)  // Power-down single-shot mode (default)
-
-    #define ADS1015_REG_CONFIG_DR_MASK      (0x00E0)  
-    #define ADS1015_REG_CONFIG_DR_128SPS    (0x0000)  // 128 samples per second
-    #define ADS1015_REG_CONFIG_DR_250SPS    (0x0020)  // 250 samples per second
-    #define ADS1015_REG_CONFIG_DR_490SPS    (0x0040)  // 490 samples per second
-    #define ADS1015_REG_CONFIG_DR_920SPS    (0x0060)  // 920 samples per second
-    #define ADS1015_REG_CONFIG_DR_1600SPS   (0x0080)  // 1600 samples per second (default)
-    #define ADS1015_REG_CONFIG_DR_2400SPS   (0x00A0)  // 2400 samples per second
-    #define ADS1015_REG_CONFIG_DR_3300SPS   (0x00C0)  // 3300 samples per second
-
-    #define ADS1015_REG_CONFIG_CMODE_MASK   (0x0010)
-    #define ADS1015_REG_CONFIG_CMODE_TRAD   (0x0000)  // Traditional comparator with hysteresis (default)
-    #define ADS1015_REG_CONFIG_CMODE_WINDOW (0x0010)  // Window comparator
-
-    #define ADS1015_REG_CONFIG_CPOL_MASK    (0x0008)
-    #define ADS1015_REG_CONFIG_CPOL_ACTVLOW (0x0000)  // ALERT/RDY pin is low when active (default)
-    #define ADS1015_REG_CONFIG_CPOL_ACTVHI  (0x0008)  // ALERT/RDY pin is high when active
-
-    #define ADS1015_REG_CONFIG_CLAT_MASK    (0x0004)  // Determines if ALERT/RDY pin latches once asserted
-    #define ADS1015_REG_CONFIG_CLAT_NONLAT  (0x0000)  // Non-latching comparator (default)
-    #define ADS1015_REG_CONFIG_CLAT_LATCH   (0x0004)  // Latching comparator
-
-    #define ADS1015_REG_CONFIG_CQUE_MASK    (0x0003)
-    #define ADS1015_REG_CONFIG_CQUE_1CONV   (0x0000)  // Assert ALERT/RDY after one conversions
-    #define ADS1015_REG_CONFIG_CQUE_2CONV   (0x0001)  // Assert ALERT/RDY after two conversions
-    #define ADS1015_REG_CONFIG_CQUE_4CONV   (0x0002)  // Assert ALERT/RDY after four conversions
-    #define ADS1015_REG_CONFIG_CQUE_NONE    (0x0003)  // Disable the comparator and put ALERT/RDY in high state (default)
-/*=========================================================================*/
-
-typedef enum
-{
-  GAIN_TWOTHIRDS    = ADS1015_REG_CONFIG_PGA_6_144V,
-  GAIN_ONE          = ADS1015_REG_CONFIG_PGA_4_096V,
-  GAIN_TWO          = ADS1015_REG_CONFIG_PGA_2_048V,
-  GAIN_FOUR         = ADS1015_REG_CONFIG_PGA_1_024V,
-  GAIN_EIGHT        = ADS1015_REG_CONFIG_PGA_0_512V,
-  GAIN_SIXTEEN      = ADS1015_REG_CONFIG_PGA_0_256V
-} adsGain_t;
-
-class Adafruit_ADS1015
-{
-protected:
-   // Instance-specific properties
-   uint8_t   m_i2cAddress;
-   uint8_t   m_conversionDelay;
-   uint8_t   m_bitShift;
-   adsGain_t m_gain;
-   I2C*      m_i2c;
-   
-
- public:
-  Adafruit_ADS1015(I2C* i2c = 0, uint8_t i2cAddress = ADS1015_ADDRESS); // set i2c adress = 0 to allow ADS1115 to use this as default constructor
-  uint16_t  readADC_SingleEnded(uint8_t channel);
-  int16_t   readADC_Differential_0_1(void);
-  int16_t   readADC_Differential_2_3(void);
-  void      startComparator_SingleEnded(uint8_t channel, int16_t threshold);
-  int16_t   getLastConversionResults();
-  void      setGain(adsGain_t gain);
-  adsGain_t getGain(void);
-
- private:
-  uint16_t readRegister(uint8_t i2cAddress, uint8_t reg);
-  void writeRegister(uint8_t i2cAddress, uint8_t reg, uint16_t value);
-};
-
-// Derive from ADS1105 & override construction to set properties
-class Adafruit_ADS1115 : public Adafruit_ADS1015
-{
- public:
-  Adafruit_ADS1115(I2C* i2c, uint8_t i2cAddress = ADS1015_ADDRESS);
-
- private:
-};
\ No newline at end of file