85 lines
3.7 KiB
C
85 lines
3.7 KiB
C
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/** \file algorithm.h ******************************************************
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*
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* Project: MAXREFDES117#
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* Filename: algorithm.h
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* Description: This module is the heart rate/SpO2 calculation algorithm header file
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*
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* Revision History:
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*\n 1-18-2016 Rev 01.00 SK Initial release.
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*\n
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*
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* --------------------------------------------------------------------
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*
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* This code follows the following naming conventions:
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*
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*\n char ch_pmod_value
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*\n char (array) s_pmod_s_string[16]
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*\n float f_pmod_value
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*\n int32_t n_pmod_value
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*\n int32_t (array) an_pmod_value[16]
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*\n int16_t w_pmod_value
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*\n int16_t (array) aw_pmod_value[16]
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*\n uint16_t uw_pmod_value
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*\n uint16_t (array) auw_pmod_value[16]
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*\n uint8_t uch_pmod_value
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*\n uint8_t (array) auch_pmod_buffer[16]
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*\n uint32_t un_pmod_value
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*\n int32_t * pn_pmod_value
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*
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* ------------------------------------------------------------------------- */
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/*******************************************************************************
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* Copyright (C) 2015 Maxim Integrated Products, Inc., All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
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* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of Maxim Integrated
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* Products, Inc. shall not be used except as stated in the Maxim Integrated
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* Products, Inc. Branding Policy.
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*
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* The mere transfer of this software does not imply any licenses
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* of trade secrets, proprietary technology, copyrights, patents,
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* trademarks, maskwork rights, or any other form of intellectual
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* property whatsoever. Maxim Integrated Products, Inc. retains all
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* ownership rights.
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*******************************************************************************
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*/
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#ifndef ALGORITHM_H_
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#define ALGORITHM_H_
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#include <stdint.h>
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#define true 1
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#define false 0
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#define FS 100
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#define BUFFER_SIZE (FS* 5)
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#define HR_FIFO_SIZE 7
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#define MA4_SIZE 4 // DO NOT CHANGE
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#define HAMMING_SIZE 5// DO NOT CHANGE
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#define min(x,y) ((x) < (y) ? (x) : (y))
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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);
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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 );
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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 );
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void maxim_remove_close_peaks( int32_t *pn_locs, int32_t *pn_npks, int32_t *pn_x, int32_t n_min_distance );
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void maxim_sort_ascend( int32_t *pn_x, int32_t n_size );
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void maxim_sort_indices_descend( int32_t *pn_x, int32_t *pn_indx, int32_t n_size);
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#endif /* ALGORITHM_H_ */
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