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78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
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/*******************************************************************************
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HRM.h - Definition header
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*******************************************************************************/
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#ifndef HRM_H
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#define HRM_H
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#include <stdint.h>
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//------------------------------------------------------
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#define HR_SAMPLE_RATE 25// Hz
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#define HR_INTEG_MIN HR_INTEG_40
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#define HR_INTEG_BASE HR_INTEG_250
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#define HR_INTEG_MAX HR_INTEG_250
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#define HR_TH_HIGH 63000
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#define HR_TH_LOW 30000
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//------------------------------------------------------
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// HRM I2C address & register sub-addresses
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#define HR_SLAVE_ADDRESS 0x82
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#define HR_FILTER_1 0<<5
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#define HR_FILTER_2 1<<5
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#define HR_FILTER_4 2<<5
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#define HR_FILTER_8 3<<5
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#define HR_FILTER_16 4<<5
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#define HR_FILTER_32 5<<5
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#define HR_FILTER_64 6<<5
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#define HR_FILTER_128 7<<5
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#define HR_MODE_HR 1<<4
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#define HR_MODE_HRS 9<<4
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#define HR_GAIN_MID 1
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#define HR_GAIN_LOW 3
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#define HR_INTEG_20 5
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#define HR_INTEG_25 6
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#define HR_INTEG_30 7
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#define HR_INTEG_40 8
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#define HR_INTEG_55 9
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#define HR_INTEG_70 10
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#define HR_INTEG_90 11
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#define HR_INTEG_110 12
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#define HR_INTEG_150 13
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#define HR_INTEG_200 14
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#define HR_INTEG_250 15
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#define HR_INTEG_350 16
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#define HR_INTEG_450 17
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#define HR_INTEG_550 18
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#define HR_OSR_64 0<<2
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#define HR_OSR_256 1<<2
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#define HR_OSR_1024 2<<2
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#define HR_OSR_2048 3<<2
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#define HR_RESETN_RESET 0<<2
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#define HR_RESETN_RUN 1<<2
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#define HR_PDRIVE_70MA 0<<4
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#define HR_PDRIVE_35MA 1<<4
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#define HR_PDRIVE_200MA 2<<4
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#define HR_PDRIVE_100MA 3<<4
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#define HR_INT_FRAME 1<<2
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#define HR_INT_DISABLED 2<<2
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#define HR_IR_DISABLE 0<<7
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#define HR_IR_ENABLE 1<<7
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//------------------------------------------------------
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// Declarations
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void init_hrm(void);
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uint16_t read_hrm(void);
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#endif /* HRM_H */
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