MAX30100_Registers.h

00001 /*
00002 Arduino-MAX30100 oximetry / heart rate integrated sensor library
00003 Copyright (C) 2016  OXullo Intersecans <x@brainrapers.org>
00004 This program is free software: you can redistribute it and/or modify
00005 it under the terms of the GNU General Public License as published by
00006 the Free Software Foundation, either version 3 of the License, or
00007 (at your option) any later version.
00008 This program is distributed in the hope that it will be useful,
00009 but WITHOUT ANY WARRANTY; without even the implied warranty of
00010 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00011 GNU General Public License for more details.
00012 You should have received a copy of the GNU General Public License
00013 along with this program.  If not, see <http://www.gnu.org/licenses/>.
00014 */
00015 
00016 #ifndef MAX30100_REGISTERS_H
00017 #define MAX30100_REGISTERS_H
00018 
00019 //#define MAX30100_I2C_ADDRESS                    0x57
00020 #define I2C_WRITE_ADDR 0xAE
00021 #define I2C_READ_ADDR 0xAF
00022 
00023 // Interrupt status register (RO)
00024 #define MAX30100_REG_INTERRUPT_STATUS           0x00
00025 #define MAX30100_IS_PWR_RDY                     (1 << 0)
00026 #define MAX30100_IS_SPO2_RDY                    (1 << 4)
00027 #define MAX30100_IS_HR_RDY                      (1 << 5)
00028 #define MAX30100_IS_TEMP_RDY                    (1 << 6)
00029 #define MAX30100_IS_A_FULL                      (1 << 7)
00030 
00031 // Interrupt enable register
00032 #define MAX30100_REG_INTERRUPT_ENABLE           0x01
00033 #define MAX30100_IE_ENB_SPO2_RDY                (1 << 4)
00034 #define MAX30100_IE_ENB_HR_RDY                  (1 << 5)
00035 #define MAX30100_IE_ENB_TEMP_RDY                (1 << 6)
00036 #define MAX30100_IE_ENB_A_FULL                  (1 << 7)
00037 
00038 // FIFO control and data registers
00039 #define MAX30100_REG_FIFO_WRITE_POINTER         0x02
00040 #define MAX30100_REG_FIFO_OVERFLOW_COUNTER      0x03
00041 #define MAX30100_REG_FIFO_READ_POINTER          0x04
00042 #define MAX30100_REG_FIFO_DATA                  0x05  // Burst read does not autoincrement addr
00043 
00044 // Mode Configuration register
00045 #define MAX30100_REG_MODE_CONFIGURATION         0x06
00046 #define MAX30100_MC_TEMP_EN                     (1 << 3)
00047 #define MAX30100_MC_RESET                       (1 << 6)
00048 #define MAX30100_MC_SHDN                        (1 << 7)
00049 typedef enum Mode {
00050     MAX30100_MODE_HRONLY    = 0x02,
00051     MAX30100_MODE_SPO2_HR   = 0x03
00052 } Mode;
00053 
00054 // SpO2 Configuration register
00055 // Check tables 8 and 9, p19 of the MAX30100 datasheet to see the permissible
00056 // combinations of sampling rates and pulse widths
00057 #define MAX30100_REG_SPO2_CONFIGURATION         0x07
00058 #define MAX30100_SPC_SPO2_HI_RES_EN             (1 << 6)
00059 typedef enum SamplingRate {
00060     MAX30100_SAMPRATE_50HZ      = 0x00,
00061     MAX30100_SAMPRATE_100HZ     = 0x01,
00062     MAX30100_SAMPRATE_167HZ     = 0x02,
00063     MAX30100_SAMPRATE_200HZ     = 0x03,
00064     MAX30100_SAMPRATE_400HZ     = 0x04,
00065     MAX30100_SAMPRATE_600HZ     = 0x05,
00066     MAX30100_SAMPRATE_800HZ     = 0x06,
00067     MAX30100_SAMPRATE_1000HZ    = 0x07
00068 } SamplingRate;
00069 
00070 typedef enum LEDPulseWidth {
00071     MAX30100_SPC_PW_200US_13BITS    = 0x00,
00072     MAX30100_SPC_PW_400US_14BITS    = 0x01,
00073     MAX30100_SPC_PW_800US_15BITS    = 0x02,
00074     MAX30100_SPC_PW_1600US_16BITS   = 0x03
00075 } LEDPulseWidth;
00076 
00077 // LED Configuration register
00078 #define MAX30100_REG_LED_CONFIGURATION          0x09
00079 typedef enum LEDCurrent {
00080     MAX30100_LED_CURR_0MA      = 0x00,
00081     MAX30100_LED_CURR_4_4MA    = 0x01,
00082     MAX30100_LED_CURR_7_6MA    = 0x02,
00083     MAX30100_LED_CURR_11MA     = 0x03,
00084     MAX30100_LED_CURR_14_2MA   = 0x04,
00085     MAX30100_LED_CURR_17_4MA   = 0x05,
00086     MAX30100_LED_CURR_20_8MA   = 0x06,
00087     MAX30100_LED_CURR_24MA     = 0x07,
00088     MAX30100_LED_CURR_27_1MA   = 0x08,
00089     MAX30100_LED_CURR_30_6MA   = 0x09,
00090     MAX30100_LED_CURR_33_8MA   = 0x0a,
00091     MAX30100_LED_CURR_37MA     = 0x0b,
00092     MAX30100_LED_CURR_40_2MA   = 0x0c,
00093     MAX30100_LED_CURR_43_6MA   = 0x0d,
00094     MAX30100_LED_CURR_46_8MA   = 0x0e,
00095     MAX30100_LED_CURR_50MA     = 0x0f
00096 } LEDCurrent;
00097 
00098 // Temperature integer part register
00099 #define MAX30100_REG_TEMPERATURE_DATA_INT       0x16
00100 // Temperature fractional part register
00101 #define MAX30100_REG_TEMPERATURE_DATA_FRAC      0x17
00102 
00103 // Revision ID register (RO)
00104 #define MAX30100_REG_REVISION_ID                0xfe
00105 // Part ID register
00106 #define MAX30100_REG_PART_ID                    0xff
00107 
00108 #endif