Pavan Shetty / sensomed

Code to log MAX30102 sensor data to phone application (Based on Nexpaq)

Dependencies:   ds3231 maxim_dev nexpaq_mdk MAX30102

Fork of IO_Demo by nexpaq

algorithm/algorithm.h@2:9057c54ae6e9, 2016-12-18 (annotated)

Committer:
shettypavank
Date:
Sun Dec 18 09:43:33 2016 +0000
Revision:
2:9057c54ae6e9
Code to log max30102 sensor data to phone app

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shettypavank 2:9057c54ae6e9 1 /** \file algorithm.h ******************************************************
shettypavank 2:9057c54ae6e9 2 *
shettypavank 2:9057c54ae6e9 3 * Project: MAXREFDES117#
shettypavank 2:9057c54ae6e9 4 * Filename: algorithm.c
shettypavank 2:9057c54ae6e9 5 * Description: This module is the heart rate/SpO2 calculation algorithm header file
shettypavank 2:9057c54ae6e9 6 *
shettypavank 2:9057c54ae6e9 7 * Revision History:
shettypavank 2:9057c54ae6e9 8 *\n 1-18-2016 Rev 01.00 SK Initial release.
shettypavank 2:9057c54ae6e9 9 *\n
shettypavank 2:9057c54ae6e9 10 *
shettypavank 2:9057c54ae6e9 11 * --------------------------------------------------------------------
shettypavank 2:9057c54ae6e9 12 *
shettypavank 2:9057c54ae6e9 13 * This code follows the following naming conventions:
shettypavank 2:9057c54ae6e9 14 *
shettypavank 2:9057c54ae6e9 15 *\n char ch_pmod_value
shettypavank 2:9057c54ae6e9 16 *\n char (array) s_pmod_s_string[16]
shettypavank 2:9057c54ae6e9 17 *\n float f_pmod_value
shettypavank 2:9057c54ae6e9 18 *\n int32_t n_pmod_value
shettypavank 2:9057c54ae6e9 19 *\n int32_t (array) an_pmod_value[16]
shettypavank 2:9057c54ae6e9 20 *\n int16_t w_pmod_value
shettypavank 2:9057c54ae6e9 21 *\n int16_t (array) aw_pmod_value[16]
shettypavank 2:9057c54ae6e9 22 *\n uint16_t uw_pmod_value
shettypavank 2:9057c54ae6e9 23 *\n uint16_t (array) auw_pmod_value[16]
shettypavank 2:9057c54ae6e9 24 *\n uint8_t uch_pmod_value
shettypavank 2:9057c54ae6e9 25 *\n uint8_t (array) auch_pmod_buffer[16]
shettypavank 2:9057c54ae6e9 26 *\n uint32_t un_pmod_value
shettypavank 2:9057c54ae6e9 27 *\n int32_t * pn_pmod_value
shettypavank 2:9057c54ae6e9 28 *
shettypavank 2:9057c54ae6e9 29 * ------------------------------------------------------------------------- */
shettypavank 2:9057c54ae6e9 30 /*******************************************************************************
shettypavank 2:9057c54ae6e9 31 * Copyright (C) 2015 Maxim Integrated Products, Inc., All Rights Reserved.
shettypavank 2:9057c54ae6e9 32 *
shettypavank 2:9057c54ae6e9 33 * Permission is hereby granted, free of charge, to any person obtaining a
shettypavank 2:9057c54ae6e9 34 * copy of this software and associated documentation files (the "Software"),
shettypavank 2:9057c54ae6e9 35 * to deal in the Software without restriction, including without limitation
shettypavank 2:9057c54ae6e9 36 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
shettypavank 2:9057c54ae6e9 37 * and/or sell copies of the Software, and to permit persons to whom the
shettypavank 2:9057c54ae6e9 38 * Software is furnished to do so, subject to the following conditions:
shettypavank 2:9057c54ae6e9 39 *
shettypavank 2:9057c54ae6e9 40 * The above copyright notice and this permission notice shall be included
shettypavank 2:9057c54ae6e9 41 * in all copies or substantial portions of the Software.
shettypavank 2:9057c54ae6e9 42 *
shettypavank 2:9057c54ae6e9 43 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
shettypavank 2:9057c54ae6e9 44 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
shettypavank 2:9057c54ae6e9 45 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
shettypavank 2:9057c54ae6e9 46 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
shettypavank 2:9057c54ae6e9 47 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
shettypavank 2:9057c54ae6e9 48 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
shettypavank 2:9057c54ae6e9 49 * OTHER DEALINGS IN THE SOFTWARE.
shettypavank 2:9057c54ae6e9 50 *
shettypavank 2:9057c54ae6e9 51 * Except as contained in this notice, the name of Maxim Integrated
shettypavank 2:9057c54ae6e9 52 * Products, Inc. shall not be used except as stated in the Maxim Integrated
shettypavank 2:9057c54ae6e9 53 * Products, Inc. Branding Policy.
shettypavank 2:9057c54ae6e9 54 *
shettypavank 2:9057c54ae6e9 55 * The mere transfer of this software does not imply any licenses
shettypavank 2:9057c54ae6e9 56 * of trade secrets, proprietary technology, copyrights, patents,
shettypavank 2:9057c54ae6e9 57 * trademarks, maskwork rights, or any other form of intellectual
shettypavank 2:9057c54ae6e9 58 * property whatsoever. Maxim Integrated Products, Inc. retains all
shettypavank 2:9057c54ae6e9 59 * ownership rights.
shettypavank 2:9057c54ae6e9 60 *******************************************************************************
shettypavank 2:9057c54ae6e9 61 */
shettypavank 2:9057c54ae6e9 62 #ifndef ALGORITHM_H_
shettypavank 2:9057c54ae6e9 63 #define ALGORITHM_H_
shettypavank 2:9057c54ae6e9 64
shettypavank 2:9057c54ae6e9 65 #include "mbed.h"
shettypavank 2:9057c54ae6e9 66
shettypavank 2:9057c54ae6e9 67 #define true 1
shettypavank 2:9057c54ae6e9 68 #define false 0
shettypavank 2:9057c54ae6e9 69 #define FS 100
shettypavank 2:9057c54ae6e9 70 #define BUFFER_SIZE (FS* 5)
shettypavank 2:9057c54ae6e9 71 #define HR_FIFO_SIZE 7
shettypavank 2:9057c54ae6e9 72 #define MA4_SIZE 4 // DO NOT CHANGE
shettypavank 2:9057c54ae6e9 73 #define HAMMING_SIZE 5// DO NOT CHANGE
shettypavank 2:9057c54ae6e9 74 #define min(x,y) ((x) < (y) ? (x) : (y))
shettypavank 2:9057c54ae6e9 75
shettypavank 2:9057c54ae6e9 76 const uint16_t auw_hamm[31]={ 41, 276, 512, 276, 41 }; //Hamm= long16(512* hamming(5)');
shettypavank 2:9057c54ae6e9 77 //SPO2table is computed as -45.060*ratioAverage* ratioAverage + 30.354 *ratioAverage + 94.845 ;
shettypavank 2:9057c54ae6e9 78 const uint8_t uch_spo2_table[184]={ 95, 95, 95, 96, 96, 96, 97, 97, 97, 97, 97, 98, 98, 98, 98, 98, 99, 99, 99, 99,
shettypavank 2:9057c54ae6e9 79 99, 99, 99, 99, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
shettypavank 2:9057c54ae6e9 80 100, 100, 100, 100, 99, 99, 99, 99, 99, 99, 99, 99, 98, 98, 98, 98, 98, 98, 97, 97,
shettypavank 2:9057c54ae6e9 81 97, 97, 96, 96, 96, 96, 95, 95, 95, 94, 94, 94, 93, 93, 93, 92, 92, 92, 91, 91,
shettypavank 2:9057c54ae6e9 82 90, 90, 89, 89, 89, 88, 88, 87, 87, 86, 86, 85, 85, 84, 84, 83, 82, 82, 81, 81,
shettypavank 2:9057c54ae6e9 83 80, 80, 79, 78, 78, 77, 76, 76, 75, 74, 74, 73, 72, 72, 71, 70, 69, 69, 68, 67,
shettypavank 2:9057c54ae6e9 84 66, 66, 65, 64, 63, 62, 62, 61, 60, 59, 58, 57, 56, 56, 55, 54, 53, 52, 51, 50,
shettypavank 2:9057c54ae6e9 85 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 31, 30, 29,
shettypavank 2:9057c54ae6e9 86 28, 27, 26, 25, 23, 22, 21, 20, 19, 17, 16, 15, 14, 12, 11, 10, 9, 7, 6, 5,
shettypavank 2:9057c54ae6e9 87 3, 2, 1 } ;
shettypavank 2:9057c54ae6e9 88 static int32_t an_dx[ BUFFER_SIZE-MA4_SIZE]; // delta
shettypavank 2:9057c54ae6e9 89 static int32_t an_x[ BUFFER_SIZE]; //ir
shettypavank 2:9057c54ae6e9 90 static int32_t an_y[ BUFFER_SIZE]; //red
shettypavank 2:9057c54ae6e9 91
shettypavank 2:9057c54ae6e9 92
shettypavank 2:9057c54ae6e9 93 void maxim_heart_rate_and_oxygen_saturation(uint32_t *pun_ir_buffer , int32_t n_ir_buffer_length, uint32_t *pun_red_buffer , int32_t *pn_spo2, int8_t *pch_spo2_valid , int32_t *pn_heart_rate , int8_t *pch_hr_valid);
shettypavank 2:9057c54ae6e9 94 void maxim_find_peaks( int32_t *pn_locs, int32_t *pn_npks, int32_t *pn_x, int32_t n_size, int32_t n_min_height, int32_t n_min_distance, int32_t n_max_num );
shettypavank 2:9057c54ae6e9 95 void maxim_peaks_above_min_height( int32_t *pn_locs, int32_t *pn_npks, int32_t *pn_x, int32_t n_size, int32_t n_min_height );
shettypavank 2:9057c54ae6e9 96 void maxim_remove_close_peaks( int32_t *pn_locs, int32_t *pn_npks, int32_t *pn_x, int32_t n_min_distance );
shettypavank 2:9057c54ae6e9 97 void maxim_sort_ascend( int32_t *pn_x, int32_t n_size );
shettypavank 2:9057c54ae6e9 98 void maxim_sort_indices_descend( int32_t *pn_x, int32_t *pn_indx, int32_t n_size);
shettypavank 2:9057c54ae6e9 99
shettypavank 2:9057c54ae6e9 100 #endif /* ALGORITHM_H_ */