/*----------------------------------------
 * @File:     ads1112_defs.h
 * @Brief:    
 * @Author:   jwm
 * @Date:     Aug-07
 *
 *  ADS1112 characteristics
 *      playing around with some stuff for moment.
 *----------------------------------------*/


// These define both the ADC index # (0-3) with their I2C addresses

#define ADCxy0 0x48         // level sensors
#define ADCxy1 0x4A
#define ADCxy2 0x4C
#define ADCxy3 0x4E

#define ADC0 0x49           // PAR sensors
#define ADC1 0x4B
#define ADC2 0x4D
#define ADC3 0x4F

#define READ15HZ 0x8c       // Command to Read, Single, 15hz, Rate Bits 2,3
#define READ30HZ 0x88       // Command to Read, Single, 15hz, losing 1bit of resolution...
#define READ60HZ 0x84       // Command to Read, Single, 15hz
#define READ240HZ 0x80      // Command to Read, Single, 15hz

#define GAIN0 0             // Gain Bits 0,1
#define GAIN2 1
#define GAIN4 2 
#define GAIN8 3

#define CHAN_SE0 0x40       // Channel Bits 5,6
#define CHAN_SE1 0x60
#define CHAN_SE2 0x20
#define CHAN_DIFF0 0x00
#define CHAN_DIFF1 0x20     // Same a SE2

#define CONTINUOUS_CONVERSION 0x00      // bit4 'sc' mask =0 for this
#define SINGLE_CONVERSION 0x10          // bit4 'sc' mask =1 for this

    // These may be redundant, only for menuing/doc perhaps
    // because the index is what's actually used in the ADS1112 config.reg.
    struct adsPGAvals {uint8_t setting; uint8_t gain; }
        adsPGA[4] = {
            {0,1},                  // 0-2.048 (in se mode)
            {1,2},                  // 0-1.024
            {2,4},                  // 0-0.512
            {3,8}};                 // 0-0.256vdc

    struct adsRangeStuff { uint8_t hz; uint8_t cfgRateBitMask; int minVal; uint16_t maxVal; }
        adsRange[4] = { 
            {15, READ15HZ, 0x8000, 0x7fff},     // -32768, 32767}, 
            {30, READ30HZ, 0xc000, 0x3fff},     // -16384, 16383}, 
            {60, READ60HZ, 0xe000, 0x1fff},     // -8192, 8191}, 
            {240, READ240HZ, 0xf800, 0x07ff}}; // -2048, 2047