46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
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#ifndef _ALGORITHM_H_
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#define _ALGORITHM_H_
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#include "typedef.h"
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#include "os/os_api.h"
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#include "system/includes.h"
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#include "media/includes.h"
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#include "asm/iic_hw.h"
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#include "asm/iic_soft.h"
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#include "asm/timer.h"
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#define TCFG_MAX30102_DEV_ENABLE 1
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#if TCFG_MAX30102_DEV_ENABLE
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/*************algorithm 1****************/
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typedef struct {
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int64_t RealNum;
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int64_t ImagNum;
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} ComplexNum;
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extern u32 RedBuffer[256];
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extern u32 IrBuffer[256];
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u16 MAX30102_GetHeartRate();
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float MAX30102_GetSPO2(void);
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/*************algorithm 2****************/
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#define Calculate_type 0
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#if Calculate_type
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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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#else
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#define FreqS 25 //sampling frequency //50
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#define BUFFER_SIZE (FreqS * 4) //50 * 3
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#define MA4_SIZE 4 // DONOT CHANGE
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#endif
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void max301x_heart_rate_and_oxygen_saturation(u32 *pun_ir_buffer, int n_ir_buffer_length, u32 *pun_red_buffer, int *pn_spo2, char *pch_spo2_valid, int *pn_heart_rate, char *pch_hr_valid);
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int32_t calculate_average(int pn_data, char *pch_data_valid, u8 data_type);
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#endif
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#endif
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