Revision 1:02f411fefe6f, committed 2016-06-21

Comitter:

Filea

Date:

Tue Jun 21 09:43:15 2016 +0000

Parent:

0:e1e1947a9882

Commit message:

Modified the code from the library MAX30100 to work with MAX30102 pulse oximeter.

Changed in this revision

--- a/max30100.cpp	Sun Apr 03 13:43:19 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,167 +0,0 @@
-/*
- Library for the Maxim MAX30100 pulse oximetry system
- */
-
-#include "max30100.h"
-#include "functions.h"
-
-static Serial pc(SERIAL_TX, SERIAL_RX);
-
-void MAX30100::setLEDs(pulseWidth pw, ledCurrent red, ledCurrent ir){
-    char data_read[1];
-    char data_write[1];
-    i2c_read(MAX30100_ADDRESS, MAX30100_SPO2_CONFIG, data_read, 1);
-    data_read[0] = data_read[0] & 0xFC; // Set LED_PW to 00
-    data_write[0] = data_read[0] | pw;
-    i2c_write(MAX30100_ADDRESS, MAX30100_SPO2_CONFIG, data_write, 1);     // Mask LED_PW
-    data_write[0] = ((red<<4) | ir);
-    i2c_write(MAX30100_ADDRESS, MAX30100_LED_CONFIG, data_write, 1); // write LED configs
-}
-
-void MAX30100::setSPO2(sampleRate sr, high_resolution hi_res){
-    char data_read[1];
-    char data_write[1];
-    i2c_read(MAX30100_ADDRESS, MAX30100_SPO2_CONFIG, data_read, 1);
-    data_read[0] = data_read[0] & 0xA3; // Set SPO2_SR to 000 and SPO2_HI_RES_EN to 0
-    data_write[0] = data_read[0] | (sr<<2) | (hi_res<<6);
-    i2c_write(MAX30100_ADDRESS, MAX30100_SPO2_CONFIG, data_write, 1); // Mask SPO2_SR
-    i2c_read(MAX30100_ADDRESS, MAX30100_CONFIG, data_read, 1);
-    data_write[0] = data_read[0] & 0xF8; // Set Mode to 000
-    i2c_write(MAX30100_ADDRESS, MAX30100_CONFIG, data_write, 1); // Mask MODE
-}
-
-void MAX30100::setInterruptSPO2(void){
-    char data_read[1];
-    char data_write[1];
-    i2c_read(MAX30100_ADDRESS, MAX30100_INT_ENABLE, data_read, 1);
-    data_write[0] = data_read[0] | 0x10; // Set Interrupt enable for SPO2
-    i2c_write(MAX30100_ADDRESS, MAX30100_INT_ENABLE, data_write, 1); // Mask ENB_SPO2_RDY
-}
-
-int MAX30100::getNumSamp(void){
-    char data_read[1];
-    i2c_read(MAX30100_ADDRESS, MAX30100_FIFO_W_POINTER, data_read, 1);
-    char wrPtr = data_read[0];
-    i2c_read(MAX30100_ADDRESS, MAX30100_FIFO_R_POINTER, data_read, 1);
-    char rdPtr = data_read[0];
-    return (abs( 16 + (int)wrPtr - (int)rdPtr ) % 16);
-}
-
-void MAX30100::setTemp(void){
-    char data_read[1];
-    char data_write[1];
-    i2c_read(MAX30100_ADDRESS, MAX30100_CONFIG, data_read, 1);
-    data_write[0] = data_read[0] | 0x0B;    // Set SPO2 Mode and enable temperature
-    i2c_write(MAX30100_ADDRESS, MAX30100_CONFIG, data_write, 1); // Mask MODE
-    i2c_read(MAX30100_ADDRESS, MAX30100_CONFIG, data_read, 1);
-}
-
-void MAX30100::setSPO2mode(void){
-    char data_read[1];
-    char data_write[1];
-    i2c_read(MAX30100_ADDRESS, MAX30100_CONFIG, data_read, 1);
-    data_write[0] = data_read[0] | 0x03;    // Set SPO2 Mode
-    i2c_write(MAX30100_ADDRESS, MAX30100_CONFIG, data_write, 1);
-}
-
-int MAX30100::readTemp(void){
-    char data_read[1];
-    char temp_int, temp_fract;
-    int temp_measured;
-    i2c_read(MAX30100_ADDRESS, MAX30100_TEMP_INTEGER, data_read, 1);
-    temp_int = data_read[0];
-    i2c_read(MAX30100_ADDRESS, MAX30100_TEMP_FRACTION, data_read, 1);
-    temp_fract = data_read[0] & 0x0F;
-    temp_measured = ((int)temp_int)+(((int)temp_fract) >> 4);
-    return temp_measured;
-}
-
-void MAX30100::readSensor(void){
-    char data_read[4];
-    i2c_read(MAX30100_ADDRESS, MAX30100_FIFO_DATA_REG, data_read, 4);  // Read four times from the FIFO
-    HR = (data_read[0]<<8) | data_read[1];    // Combine values to get the actual number
-    SPO2 = (data_read[2]<<8) | data_read[3];  // Combine values to get the actual number
-}
-
-void MAX30100::shutdown(void){
-    char data_read[1];
-    char data_write[1];
-    i2c_read(MAX30100_ADDRESS, MAX30100_CONFIG, data_read, 1);  // Get the current register
-    data_write[0] = data_read[0] | 0x80;
-    i2c_write(MAX30100_ADDRESS, MAX30100_CONFIG, data_write, 1);   // mask the SHDN bit
-}
-
-void MAX30100::reset(void){
-    char data_read[1];
-    char data_write[1];
-    i2c_read(MAX30100_ADDRESS, MAX30100_CONFIG, data_read, 1);  // Get the current register
-    data_write[0] = data_read[0] | 0x40;
-    i2c_write(MAX30100_ADDRESS, MAX30100_CONFIG, data_write, 1);   // mask the RESET bit
-}
-
-void MAX30100::startup(void){
-    char data_read[1];
-    char data_write[1];
-    i2c_read(MAX30100_ADDRESS, MAX30100_CONFIG, data_read, 1);  // Get the current register
-    data_write[0] = data_read[0] & 0x7F;
-    i2c_write(MAX30100_ADDRESS, MAX30100_CONFIG, data_write, 1);   // mask the SHDN bit
-}
-
-char MAX30100::getRevID(void){
-    char data_read[1];
-    i2c_read(MAX30100_ADDRESS, MAX30100_REVISION_ID, data_read, 1);
-    return data_read[0];
-}
-
-char MAX30100::getPartID(void){
-    char data_read[1];
-    i2c_read(MAX30100_ADDRESS, MAX30100_PART_ID, data_read, 1);
-    return data_read[0];
-}
-
-void MAX30100::begin(pulseWidth pw, ledCurrent ir, sampleRate sr){
-    char data_write[1];
-    data_write[0] = 0x03;
-    i2c_write(MAX30100_ADDRESS, MAX30100_CONFIG, data_write, 1); // Heart rate only
-    data_write[0] = ir;
-    i2c_write(MAX30100_ADDRESS, MAX30100_LED_CONFIG, data_write, 1);
-    data_write[0] = ((sr<<2)|pw);
-    i2c_write(MAX30100_ADDRESS, MAX30100_SPO2_CONFIG, data_write, 1);
-}
-
-void MAX30100::init(pulseWidth pw, sampleRate sr, high_resolution hi_res, ledCurrent red, ledCurrent ir){
-    
-    setLEDs(pw, red, ir);
-    setSPO2(sr, hi_res);
-    
-}
-
-void MAX30100::printRegisters(void){
-    char data_read[1];
-    i2c_read(MAX30100_ADDRESS, MAX30100_INT_STATUS, data_read, 1);
-    pc.printf("INT_STATUS: %#4X\r\n", data_read[0]);
-    i2c_read(MAX30100_ADDRESS, MAX30100_INT_ENABLE, data_read, 1);
-    pc.printf("INT_ENABLE: %#4X\r\n", data_read[0]);
-    i2c_read(MAX30100_ADDRESS, MAX30100_FIFO_W_POINTER, data_read, 1);
-    pc.printf("FIFO_W_POINTER: %#4X\r\n", data_read[0]);
-    i2c_read(MAX30100_ADDRESS, MAX30100_OVR_COUNTER, data_read, 1);
-    pc.printf("OVR_COUNTER: %#4X\r\n", data_read[0]);
-    i2c_read(MAX30100_ADDRESS, MAX30100_FIFO_R_POINTER, data_read, 1);
-    pc.printf("FIFO_R_POINTER: %#4X\r\n", data_read[0]);
-    i2c_read(MAX30100_ADDRESS, MAX30100_FIFO_DATA_REG, data_read, 1);
-    pc.printf("FIFO_DATA_REG: %#4X\r\n", data_read[0]);
-    i2c_read(MAX30100_ADDRESS, MAX30100_CONFIG, data_read, 1);
-    pc.printf("CONFIG: %#4X\r\n", data_read[0]);
-    i2c_read(MAX30100_ADDRESS, MAX30100_SPO2_CONFIG, data_read, 1);
-    pc.printf("SPO2_CONFIG: %#4X\r\n", data_read[0]);
-    i2c_read(MAX30100_ADDRESS, MAX30100_LED_CONFIG, data_read, 1);
-    pc.printf("LED_CONFIG: %#4X\r\n", data_read[0]);
-    i2c_read(MAX30100_ADDRESS, MAX30100_TEMP_INTEGER, data_read, 1);
-    pc.printf("TEMP_INTEGER: %#4X\r\n", data_read[0]);
-    i2c_read(MAX30100_ADDRESS, MAX30100_TEMP_FRACTION, data_read, 1);
-    pc.printf("TEMP_FRACTION: %#4X\r\n", data_read[0]);
-    i2c_read(MAX30100_ADDRESS, MAX30100_REVISION_ID, data_read, 1);
-    pc.printf("REVISION_ID: %#4X\r\n", data_read[0]);
-    i2c_read(MAX30100_ADDRESS, MAX30100_PART_ID, data_read, 1);
-    pc.printf("PART_ID: %#4X\r\n", data_read[0]);
-}

--- a/max30100.h	Sun Apr 03 13:43:19 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,149 +0,0 @@
-/*
- Library for the Maxim MAX30100 pulse oximetry system
- */
-
-/* Define to prevent recursive inclusion -------------------------------------*/
-#ifndef __MAX30100_H
-#define __MAX30100_H
-
-#include "mbed.h"
-
-
-/******************************************************************************/
-/*********** PULSE OXIMETER AND HEART RATE REGISTER MAPPING  **************/
-/******************************************************************************/
-
-// status registers
-#define MAX30100_INT_STATUS          0x00
-#define MAX30100_INT_ENABLE          0x01
-
-// FIFO registers
-#define MAX30100_FIFO_W_POINTER      0x02
-#define MAX30100_OVR_COUNTER         0x03
-#define MAX30100_FIFO_R_POINTER      0x04
-#define MAX30100_FIFO_DATA_REG       0x05
-
-// configuration registers
-#define MAX30100_CONFIG              0x06
-#define MAX30100_SPO2_CONFIG         0x07
-#define MAX30100_LED_CONFIG          0x09
-
-// temperature registers
-#define MAX30100_TEMP_INTEGER        0x16
-#define MAX30100_TEMP_FRACTION       0x17
-
-// PART ID registers
-#define MAX30100_REVISION_ID         0xFE
-#define MAX30100_PART_ID             0xFF
-
-#define I_AM_MAX30100                0x11
-
-/************************************** REGISTERS VALUE *******************************************/
-
-// I2C address
-#define MAX30100_ADDRESS             0xAE
-
-//Enable interrupts
-#define MAX30100_INT_ENB_A_FULL      ((uint8_t)0x80)
-#define MAX30100_INT_ENB_TEMP_RDY    ((uint8_t)0x40)
-#define MAX30100_INT_ENB_HR_RDY      ((uint8_t)0x20)
-#define MAX30100_INT_ENB_SO2_RDY     ((uint8_t)0x10)
-
-//Mode configuration
-#define MAX30100_MODE_SHDN           ((uint8_t)0x80)
-#define MAX30100_MODE_RESET          ((uint8_t)0x40)
-#define MAX30100_MODE_TEMP_EN        ((uint8_t)0x08)
-#define MAX30100_MODE_HR             ((uint8_t)0x02)
-#define MAX30100_MODE_SPO2           ((uint8_t)0x03)
-
-//SPO2 configuration
-#define MAX30100_SPO2_HI_RES_EN           ((uint8_t)0x40)
-
-typedef enum{ // This is the same for both LEDs
-    pw200,    // 200us pulse
-    pw400,    // 400us pulse
-    pw800,    // 800us pulse
-    pw1600    // 1600us pulse
-}pulseWidth;
-
-typedef enum{
-    sr50,    // 50 samples per second
-    sr100,   // 100 samples per second
-    sr167,   // 167 samples per second
-    sr200,   // 200 samples per second
-    sr400,   // 400 samples per second
-    sr600,   // 600 samples per second
-    sr800,   // 800 samples per second
-    sr1000   // 1000 samples per second
-}sampleRate;
-
-typedef enum{
-    i0,    // No current
-    i4,    // 4.4mA
-    i8,    // 7.6mA
-    i11,   // 11.0mA
-    i14,   // 14.2mA
-    i17,   // 17.4mA
-    i21,   // 20.8mA
-    i27,   // 27.1mA
-    i31,   // 30.6mA
-    i34,   // 33.8mA
-    i37,   // 37.0mA
-    i40,   // 40.2mA
-    i44,   // 43.6mA
-    i47,   // 46.8mA
-    i50    // 50.0mA
-}ledCurrent;
-
-typedef enum{
-    low,    // low resolution SPO2
-    high    // high resolution SPO2 (16 bit with 1.6ms LED pulse width)
-}high_resolution;
-
-typedef enum
-{
-    OXIMETER_OK = 0,
-    OXIMETER_ERROR = 1,
-    OXIMETER_TIMEOUT = 2,
-    OXIMETER_NOT_IMPLEMENTED = 3
-} OXIMETER_StatusTypeDef;
-
-/**
- * @brief  MAX30100 driver extended internal structure definition
- */
-typedef struct
-{
-    OXIMETER_StatusTypeDef (*Enable_Free_Fall_Detection) (void);
-    OXIMETER_StatusTypeDef (*Disable_Free_Fall_Detection) (void);
-    OXIMETER_StatusTypeDef (*Get_Status_Free_Fall_Detection) (uint8_t *);
-} MAX30100_DrvExtTypeDef;
-
-class MAX30100 {
-public:
-        
-    /* Public Methods */
-    
-    uint16_t HR;      // Last heart rate datapoint
-    uint16_t SPO2;    // Last oximetry datapoint
-    
-    void  setLEDs(pulseWidth pw, ledCurrent red, ledCurrent ir);  // Sets the LED state
-    void  setSPO2(sampleRate sr, high_resolution hi_res); // Setup the SPO2 sensor, disabled by default
-    int   getNumSamp(void);       // Get number of samples
-    void  readSensor(void);       // Updates the values
-    void  shutdown(void);   // Instructs device to power-save
-    void  reset(void);      // Resets the device
-    void  startup(void);    // Leaves power-save
-    char  getRevID(void);   // Gets revision ID
-    char  getPartID(void);  // Gets part ID
-    void  begin(pulseWidth pw = pw1600, // Longest pulseWidth
-                ledCurrent ir = i50,    // Highest current
-                sampleRate sr = sr100); // 2nd lowest sampleRate
-    void  init(pulseWidth pw, sampleRate sr, high_resolution hi_res, ledCurrent red, ledCurrent ir);
-    void  setTemp(void);
-    int   readTemp(void);
-    void  setSPO2mode(void);
-    void  setInterruptSPO2(void);
-    void  printRegisters(void); // Dumps contents of registers for debug
-};
-
-#endif /* __MAX30100_H */
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/max30102.cpp	Tue Jun 21 09:43:15 2016 +0000
@@ -0,0 +1,183 @@
+/*
+ * Library for the Maxim MAX30102 pulse oximetry system, I modified a copy of the MAX30100 library in May 2016
+ */
+
+#include "max30102.h"
+#include "functions.h"
+ 
+Serial pc(USBTX, USBRX);
+
+void MAX30102::setLEDs(pulseWidth pw, ledCurrent red, ledCurrent ir){
+    char data_read[1];
+    char data_write[1];
+    i2c_read(MAX30102_ADDRESS, MAX30102_SPO2_CONFIG, data_read, 1);
+    data_read[0] = data_read[0] & 0xFD;                                 // Set LED_PW to 01
+    data_write[0] = data_read[0] | pw;
+    i2c_write(MAX30102_ADDRESS, MAX30102_SPO2_CONFIG, data_write, 1);   // Mask LED_PW
+    data_write[0] = (red);
+    i2c_write(MAX30102_ADDRESS, MAX30102_LED_CONFIG_1, data_write, 1);  // write LED1 configs
+    data_write[0] = (ir);
+    i2c_write(MAX30102_ADDRESS, MAX30102_LED_CONFIG_2, data_write, 1);  // write LED2 configs
+}
+
+void MAX30102::setSPO2(sampleRate sr, high_resolution hi_res){
+    char data_read[1];
+    char data_write[1];
+    i2c_read(MAX30102_ADDRESS, MAX30102_SPO2_CONFIG, data_read, 1);
+    data_read[0] = data_read[0] & 0x85;                                 // Set ADC_rge to 00, SPO2_SR to 001 = sr100 and LEDpw to 01 = 118
+    data_write[0] = data_read[0] | (sr<<2) | (hi_res<<6);
+    i2c_write(MAX30102_ADDRESS, MAX30102_SPO2_CONFIG, data_write, 1);   // Mask SPO2_SR
+    i2c_read(MAX30102_ADDRESS, MAX30102_CONFIG, data_read, 1);
+    data_write[0] = data_read[0] & 0xF8; // Set Mode to 000
+    i2c_write(MAX30102_ADDRESS, MAX30102_CONFIG, data_write, 1);        // Mask MODE
+}
+
+void MAX30102::setInterruptSPO2(void){
+    char data_read[1];
+    char data_write[1];
+    i2c_read(MAX30102_ADDRESS, MAX30102_INT_ENABLE, data_read, 1);
+    data_write[0] = data_read[0] & 0x00;                                // Set Interrupt enable for SPO2 | 0x10   // New: disable prox! & ~0x10
+    i2c_write(MAX30102_ADDRESS, MAX30102_INT_ENABLE, data_write, 1);    // Mask ENB_SPO2_RDY
+} 
+
+int MAX30102::getNumSamp(void){
+    char data_read[1] = {0};
+//    i2c_write(MAX30102_ADDRESS, MAX30102_FIFO_W_POINTER, data_read, 1);
+//    i2c_write(MAX30102_ADDRESS, MAX30102_FIFO_R_POINTER, data_read, 1);
+//    wait(0.148);
+    i2c_read(MAX30102_ADDRESS, MAX30102_FIFO_W_POINTER, data_read, 1);
+    char wrPtr = data_read[0];
+    i2c_read(MAX30102_ADDRESS, MAX30102_FIFO_R_POINTER, data_read, 1);
+    char rdPtr = data_read[0];
+    return ((int)wrPtr - (int)rdPtr);                                   // New counting
+ //   return (abs( 16 + (int)wrPtr - (int)rdPtr ) % 16);
+}
+
+void MAX30102::setTemp(void){
+    char data_read[1];
+    char data_write[1];
+    i2c_read(MAX30102_ADDRESS, MAX30102_TEMP_CONFIG, data_read, 1);
+    data_write[0] = data_read[0] | 0x01;    // Enable temperature
+    i2c_write(MAX30102_ADDRESS, MAX30102_TEMP_CONFIG, data_write, 1);   // Mask MODE
+    i2c_read(MAX30102_ADDRESS, MAX30102_TEMP_CONFIG, data_read, 1);
+}
+
+void MAX30102::setSPO2mode(void){
+    char data_read[1];
+    char data_write[1];
+    i2c_read(MAX30102_ADDRESS, MAX30102_CONFIG, data_read, 1);
+    data_write[0] = data_read[0] | 0x03;    // Set SPO2 Mode
+    i2c_write(MAX30102_ADDRESS, MAX30102_CONFIG, data_write, 1);
+}
+
+int MAX30102::readTemp(void){
+    char data_read[1];
+    char temp_int, temp_fract;
+    int temp_measured;
+    i2c_read(MAX30102_ADDRESS, MAX30102_TEMP_INTEGER, data_read, 1);
+    temp_int = data_read[0];
+    i2c_read(MAX30102_ADDRESS, MAX30102_TEMP_FRACTION, data_read, 1);
+    temp_fract = data_read[0] & 0x0F;
+    temp_measured = ((int)temp_int)+(((int)temp_fract) >> 4);
+    return temp_measured;
+}
+
+void MAX30102::readSensor(void){
+    char data_read[6] = {0}; 
+    HR = 0;
+    SPO2 = 0;
+    i2c_read(MAX30102_ADDRESS, MAX30102_FIFO_DATA_REG, data_read, 6);   // Read six times from the FIFO
+    HR = (data_read[0]<<16) | (data_read[1]<<8) | data_read[2];         // Combine values to get the actual number
+    HR = HR>>2;
+    SPO2 = (data_read[3]<<16) | (data_read[4]<<8) | data_read[5];       // Combine values to get the actual number
+    SPO2 = SPO2>>2;
+}
+
+void MAX30102::shutdown(void){
+    char data_read[1];
+    char data_write[1];
+    i2c_read(MAX30102_ADDRESS, MAX30102_CONFIG, data_read, 1);          // Get the current register
+    data_write[0] = data_read[0] | 0x80;
+    i2c_write(MAX30102_ADDRESS, MAX30102_CONFIG, data_write, 1);        // mask the SHDN bit
+}
+
+void MAX30102::reset(void){
+    char data_read[1];
+    char data_write[1];
+    i2c_read(MAX30102_ADDRESS, MAX30102_CONFIG, data_read, 1);          // Get the current register
+    data_write[0] = data_read[0] | 0x40;
+    i2c_write(MAX30102_ADDRESS, MAX30102_CONFIG, data_write, 1);        // mask the RESET bit
+}
+
+void MAX30102::startup(void){
+    char data_read[1];
+    char data_write[1];
+    i2c_read(MAX30102_ADDRESS, MAX30102_CONFIG, data_read, 1);          // Get the current register
+    data_write[0] = data_read[0] & 0x7F;
+    i2c_write(MAX30102_ADDRESS, MAX30102_CONFIG, data_write, 1);        // mask the SHDN bit
+}
+
+char MAX30102::getRevID(void){
+    char data_read[1];
+    i2c_read(MAX30102_ADDRESS, MAX30102_REVISION_ID, data_read, 1);
+    return data_read[0];
+}
+
+char MAX30102::getPartID(void){
+    char data_read[1];
+    i2c_read(MAX30102_ADDRESS, MAX30102_PART_ID, data_read, 1);
+    return data_read[0];
+}
+
+void MAX30102::begin(pulseWidth pw, ledCurrent ir, sampleRate sr){
+    char data_write[1];
+    data_write[0] = 0x02;
+    i2c_write(MAX30102_ADDRESS, MAX30102_CONFIG, data_write, 1);        // Heart rate only
+    data_write[0] = ir;
+    i2c_write(MAX30102_ADDRESS, MAX30102_LED_CONFIG_1, data_write, 1);
+    data_write[0] = ((sr<<2)|pw);
+    i2c_write(MAX30102_ADDRESS, MAX30102_SPO2_CONFIG, data_write, 1);
+}
+
+void MAX30102::init(pulseWidth pw, sampleRate sr, high_resolution hi_res, ledCurrent red, ledCurrent ir){
+    char data_write[1];
+    
+    setLEDs(pw, red, ir);
+    setSPO2(sr, hi_res);
+    
+    data_write[0] = 0x10;
+    i2c_write(MAX30102_ADDRESS, MAX30102_FIFO_CONFIG, data_write, 1);
+      
+}
+
+void MAX30102::printRegisters(void){
+    char data_read[1];
+    i2c_read(MAX30102_ADDRESS, MAX30102_INT_STATUS, data_read, 1);
+    pc.printf("INT_STATUS: %#4X\r\n", data_read[0]);
+    i2c_read(MAX30102_ADDRESS, MAX30102_INT_ENABLE, data_read, 1);
+    pc.printf("INT_ENABLE: %#4X\r\n", data_read[0]);
+    i2c_read(MAX30102_ADDRESS, MAX30102_FIFO_W_POINTER, data_read, 1);
+    pc.printf("FIFO_W_POINTER: %#4X\r\n", data_read[0]);
+    i2c_read(MAX30102_ADDRESS, MAX30102_OVR_COUNTER, data_read, 1);
+    pc.printf("OVR_COUNTER: %#4X\r\n", data_read[0]);
+    i2c_read(MAX30102_ADDRESS, MAX30102_FIFO_R_POINTER, data_read, 1);
+    pc.printf("FIFO_R_POINTER: %#4X\r\n", data_read[0]);
+    i2c_read(MAX30102_ADDRESS, MAX30102_FIFO_DATA_REG, data_read, 1);
+    pc.printf("FIFO_DATA_REG: %#4X\r\n", data_read[0]);
+    i2c_read(MAX30102_ADDRESS, MAX30102_CONFIG, data_read, 1);
+    pc.printf("CONFIG: %#4X\r\n", data_read[0]);
+    i2c_read(MAX30102_ADDRESS, MAX30102_SPO2_CONFIG, data_read, 1);
+    pc.printf("SPO2_CONFIG: %#4X\r\n", data_read[0]);
+    i2c_read(MAX30102_ADDRESS, MAX30102_LED_CONFIG_2, data_read, 1);
+    pc.printf("LED_CONFIG: %#4X\r\n", data_read[0]);
+    i2c_read(MAX30102_ADDRESS, MAX30102_TEMP_INTEGER, data_read, 1);
+    pc.printf("TEMP_INTEGER: %#4X\r\n", data_read[0]);
+    i2c_read(MAX30102_ADDRESS, MAX30102_TEMP_FRACTION, data_read, 1);
+    pc.printf("TEMP_FRACTION: %#4X\r\n", data_read[0]);
+    i2c_read(MAX30102_ADDRESS, MAX30102_TEMP_CONFIG, data_read, 1);
+    pc.printf("TEMP_CONFIG: %#4X\r\n", data_read[0]);
+    i2c_read(MAX30102_ADDRESS, MAX30102_REVISION_ID, data_read, 1);
+    pc.printf("REVISION_ID: %#4X\r\n", data_read[0]);
+    i2c_read(MAX30102_ADDRESS, MAX30102_PART_ID, data_read, 1);
+    pc.printf("PART_ID: %#4X\r\n", data_read[0]);
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/max30102.h	Tue Jun 21 09:43:15 2016 +0000
@@ -0,0 +1,150 @@
+/*
+ * Library for the Maxim MAX30102 pulse oximetry system, I modified a copy of the MAX30100 library in May 2016
+ */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __MAX30102_H
+#define __MAX30102_H
+
+#include "mbed.h"
+
+
+/******************************************************************************/
+/*********** PULSE OXIMETER AND HEART RATE REGISTER MAPPING  **************/
+/******************************************************************************/
+
+// status registers
+#define MAX30102_INT_STATUS          0x00
+#define MAX30102_INT_ENABLE          0x02
+
+// FIFO registers
+#define MAX30102_FIFO_W_POINTER      0x04
+#define MAX30102_OVR_COUNTER         0x05
+#define MAX30102_FIFO_R_POINTER      0x06
+#define MAX30102_FIFO_DATA_REG       0x07
+
+// configuration registers
+#define MAX30102_FIFO_CONFIG         0x08
+#define MAX30102_CONFIG              0x09
+#define MAX30102_SPO2_CONFIG         0x0A
+#define MAX30102_LED_CONFIG_1        0x0C 
+#define MAX30102_LED_CONFIG_2        0x0D  
+
+// temperature registers
+#define MAX30102_TEMP_INTEGER        0x1F
+#define MAX30102_TEMP_FRACTION       0x20
+#define MAX30102_TEMP_CONFIG         0x21
+
+// PART ID registers
+#define MAX30102_REVISION_ID         0xFE
+#define MAX30102_PART_ID             0xFF
+
+#define I_AM_MAX30102                0x15
+
+/************************************** REGISTERS VALUE *******************************************/
+
+// I2C address
+#define MAX30102_ADDRESS             0xAE
+
+//Enable interrupts
+#define MAX30102_INT_ENB_A_FULL      ((uint8_t)0x80)
+#define MAX30102_INT_ENB_TEMP_RDY    ((uint8_t)0x40)
+#define MAX30102_INT_ENB_HR_RDY      ((uint8_t)0x20)
+#define MAX30102_INT_ENB_SO2_RDY     ((uint8_t)0x10)
+
+//Mode configuration
+#define MAX30102_MODE_SHDN           ((uint8_t)0x80)      // Bit 7 high
+#define MAX30102_MODE_RESET          ((uint8_t)0x40)      // Bit 6 high
+#define MAX30102_MODE_TEMP_EN        ((uint8_t)0x01)
+#define MAX30102_MODE_HR             ((uint8_t)0x02)
+#define MAX30102_MODE_SPO2           ((uint8_t)0x03)
+
+//SPO2 configuration
+#define MAX30102_SPO2_HI_RES_EN           ((uint8_t)0x40)
+
+typedef enum{ // This is the same for both LEDs
+    pw68,     // 68us pulse, ADC 15
+    pw118,    // 118us pulse, ADC 16
+    pw215,    // 215us pulse, ADC 17
+    pw411     // 411us pulse, ADC 18
+}pulseWidth;
+
+typedef enum{
+    sr50,    // 50 samples per second
+    sr100,   // 100 samples per second
+    sr200,   // 200 samples per second
+    sr400,   // 400 samples per second
+    sr800,   // 800 samples per second
+    sr1000   // 1000 samples per second
+}sampleRate;
+
+typedef enum{
+    i0,    // No current
+    i4,    // 4.4mA
+    i8,    // 7.6mA
+    i11,   // 11.0mA
+    i14,   // 14.2mA
+    i17,   // 17.4mA
+    i21,   // 20.8mA
+    i27,   // 27.1mA
+    i31,   // 30.6mA
+    i34,   // 33.8mA
+    i37,   // 37.0mA
+    i40,   // 40.2mA
+    i44,   // 43.6mA
+    i47,   // 46.8mA
+    i50    // 50.0mA
+}ledCurrent;
+
+typedef enum{
+    low,    // low resolution SPO2
+    high    // high resolution SPO2 (18 bit with 411us LED pulse width)
+}high_resolution;
+
+typedef enum
+{
+    OXIMETER_OK = 0,
+    OXIMETER_ERROR = 1,
+    OXIMETER_TIMEOUT = 2,
+    OXIMETER_NOT_IMPLEMENTED = 3
+} OXIMETER_StatusTypeDef;
+
+/**
+ * @brief  MAX30102 driver extended internal structure definition
+ */
+typedef struct
+{
+    OXIMETER_StatusTypeDef (*Enable_Free_Fall_Detection) (void);
+    OXIMETER_StatusTypeDef (*Disable_Free_Fall_Detection) (void);
+    OXIMETER_StatusTypeDef (*Get_Status_Free_Fall_Detection) (uint8_t *);
+} MAX30102_DrvExtTypeDef;
+
+class MAX30102 {
+public:
+        
+    /* Public Methods */
+    
+    uint32_t HR;      // Last heart rate datapoint
+    uint32_t SPO2;    // Last oximetry datapoint
+    
+    void  setLEDs(pulseWidth pw, ledCurrent red, ledCurrent ir);  // Sets the LED state
+    void  setSPO2(sampleRate sr, high_resolution hi_res); // Setup the SPO2 sensor, disabled by default
+    int   getNumSamp(void);       // Get number of samples
+    void  readSensor(void);       // Updates the values
+    void  shutdown(void);   // Instructs device to power-save
+    void  reset(void);      // Resets the device
+    void  startup(void);    // Leaves power-save
+    char  getRevID(void);   // Gets revision ID
+    char  getPartID(void);  // Gets part ID
+    void  begin(pulseWidth pw = pw411,  // Longest pulseWidth
+                ledCurrent ir = i50,    // Highest current
+                sampleRate sr = sr100); // 2nd lowest sampleRate
+    void  init(pulseWidth pw, sampleRate sr, high_resolution hi_res, ledCurrent red, ledCurrent ir);
+    void  setTemp(void);
+    int   readTemp(void);
+    void  setSPO2mode(void);
+    void  setInterruptSPO2(void);
+    void  printRegisters(void); // Dumps contents of registers for debug
+};
+
+#endif /* __MAX30102_H */
\ No newline at end of file