Implementation of MAX30009 driver. More...

#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "max30009.h"
#include "no_os_alloc.h"
#include "no_os_delay.h"
#include "no_os_error.h"
#include "no_os_print_log.h"

Include dependency graph for max30009.c:

Macros
#define	MAX30009_SPI_READ 0x80

#define	MAX30009_SPI_WRITE 0x00

Functions
int	max30009_reg_read_multiple (struct max30009_dev device, uint8_t reg_addr, uint8_t data, uint32_t len)
	Read multiple bytes from register.

int	max30009_reg_read (struct max30009_dev device, uint8_t reg_addr, uint8_t data)
	Read a single byte from register.

int	max30009_reg_write_multiple (struct max30009_dev device, uint8_t reg_addr, uint8_t data, uint32_t len)
	Write multiple bytes to register.

int	max30009_reg_write (struct max30009_dev *device, uint8_t reg_addr, uint8_t data)
	Write a single byte to register.

int	max30009_reg_update (struct max30009_dev *device, uint8_t reg_addr, uint8_t mask, uint8_t value)
	Update specific bits in a register.

int	max30009_soft_reset (struct max30009_dev *device)
	Perform software reset.

int	max30009_verify_part_id (struct max30009_dev *device)
	Read device part ID.

int	max30009_set_power_mode (struct max30009_dev *device, bool shutdown)
	Set power mode (shutdown or active)

int	max30009_init (struct max30009_dev *device, struct max30009_init_param init_param)
	Initialize the MAX30009 device.

int	max30009_remove (struct max30009_dev *device)
	Remove the MAX30009 device and free resources.

int	max30009_get_status (struct max30009_dev device, struct max30009_status status)
	Get device status.

int	max30009_check_lead_off (struct max30009_dev device, bool leads_on)
	Check lead-off detection status.

int	max30009_fifo_flush (struct max30009_dev *device)
	Flush FIFO contents.

int	max30009_fifo_get_count (struct max30009_dev device, uint16_t count)
	Get FIFO data count.

int	max30009_fifo_get_ovf_count (struct max30009_dev device, uint16_t count)
	Get FIFO overflow data count.

int	max30009_read_fifo_data (struct max30009_dev device, uint8_t data, uint32_t len)
	Read data from FIFO.

int	max30009_fifo_decode_sample (uint8_t raw_data, struct max30009_fifo_sample sample)
	Decode a 3-byte FIFO sample into type and data.

int	max30009_get_fifo_pointers (struct max30009_dev device, uint8_t write_ptr, uint8_t *read_ptr)
	Get FIFO read and write pointers.

int	max30009_set_fifo_watermark (struct max30009_dev *device, uint8_t watermark)
	Set FIFO watermark level.

int	max30009_get_fifo_watermark (struct max30009_dev device, uint8_t watermark)
	Gets the FIFO watermark level of the device.

int	max30009_set_fifo_rollover (struct max30009_dev *device, bool rollover)
	Set FIFO rollover mode.

int	max30009_set_a_full_type (struct max30009_dev *device, bool type)
	Set almost-full interrupt type.

int	max30009_insert_fifo_marker (struct max30009_dev *device)
	Insert marker into FIFO data stream.

int	max30009_clear_fifo_status (struct max30009_dev *device)
	Clear FIFO status flags.

int	max30009_timing_system_reset (struct max30009_dev *device)
	Trigger timing system reset for PLL synchronization.

int	max30009_set_master_mode (struct max30009_dev *device, bool is_master)
	Set master/slave mode for PLL synchronization.

int	max30009_configure_int_pin (struct max30009_dev *device, uint8_t func_cfg, uint8_t out_cfg)
	Configure INT pin function and output.

int	max30009_configure_trig_pin (struct max30009_dev *device, uint8_t input_cfg, uint8_t output_cfg)
	Configure TRIG pin input and output.

int	max30009_configure_i2c_broadcast (struct max30009_dev *device, bool enable, uint8_t broadcast_addr)
	Configure I2C broadcast address.

int	max30009_disable_i2c (struct max30009_dev *device)
	Disable I2C interface (SPI only mode)

int	max30009_pll_set_dividers (struct max30009_dev *device, uint16_t mdiv, enum max30009_pll_ndiv ndiv, enum max30009_pll_kdiv kdiv)
	Configure PLL dividers.

int	max30009_pll_enable (struct max30009_dev *device, bool enable)
	Enable or disable PLL.

int	max30009_pll_set_lock_window (struct max30009_dev *device, bool lock_window)
	Set PLL lock window.

int	max30009_set_clock_source (struct max30009_dev *device, bool use_external, bool use_32768_hz)
	Configure clock source.

int	max30009_clock_fine_tune (struct max30009_dev *device, uint8_t tune_val)
	Fine tune internal clock frequency.

int	max30009_bioz_enable (struct max30009_dev *device, bool enable)
	Enable or disable BioZ measurement.

int	max30009_bioz_i_enable (struct max30009_dev *device, bool enable)
	Enable or disable BioZ I channel.

int	max30009_bioz_q_enable (struct max30009_dev *device, bool enable)
	Enable or disable BioZ Q channel.

int	max30009_bioz_bg_enable (struct max30009_dev *device, bool enable)
	Enable or disable BioZ bandgap.

int	max30009_set_dac_osr (struct max30009_dev *device, enum max30009_dac_osr osr)
	Set DAC oversampling ratio.

int	max30009_set_adc_osr (struct max30009_dev *device, enum max30009_adc_osr osr)
	Set ADC oversampling ratio.

int	max30009_set_digital_hpf (struct max30009_dev *device, enum max30009_dhpf dhpf)
	Set digital high-pass filter.

int	max30009_set_digital_lpf (struct max30009_dev *device, enum max30009_dlpf dlpf)
	Set digital low-pass filter.

int	max30009_set_analog_hpf (struct max30009_dev *device, enum max30009_ahpf ahpf)
	Set analog high-pass filter.

int	max30009_set_drive_mode (struct max30009_dev *device, enum max30009_drive_mode mode)
	Set drive mode (current, voltage, H-bridge, or standby)

int	max30009_set_drive_current_detailed (struct max30009_dev *device, uint8_t idrv_range, uint8_t vdrv_mag)
	Set drive current with detailed control.

int	max30009_enable_external_resistor (struct max30009_dev *device, bool enable)
	Enable or disable external resistor for current drive.

int	max30009_enable_rapid_lead_off (struct max30009_dev *device, bool enable)
	Enable or disable rapid lead-off detection.

int	max30009_enable_fast_start (struct max30009_dev *device, bool enable, bool manual)
	Enable or disable fast start mode.

int	max30009_set_ina_mode (struct max30009_dev *device, bool low_power)
	Set INA (Instrumentation Amplifier) mode.

int	max30009_disable_differential_mode (struct max30009_dev *device, bool disable)
	Disable differential mode (enable single-ended)

int	max30009_set_amp_range (struct max30009_dev *device, uint8_t amp_range)
	Set amplifier range.

int	max30009_set_amp_bandwidth (struct max30009_dev *device, uint8_t amp_bw)
	Set amplifier bandwidth.

int	max30009_enable_external_cap (struct max30009_dev *device, bool enable)
	Enable or disable external capacitor.

int	max30009_enable_dc_restore (struct max30009_dev *device, bool enable)
	Enable or disable DC restore circuit.

int	max30009_enable_drive_reset (struct max30009_dev *device, bool enable)
	Enable or disable drive reset.

int	max30009_enable_dac_reset (struct max30009_dev *device, bool enable)
	Enable or disable DAC reset.

int	max30009_set_comparison_mode (struct max30009_dev *device, uint8_t cmp_mode)
	Set comparison mode for threshold detection.

int	max30009_enable_bioz_threshold (struct max30009_dev *device, bool enable)
	Enable or disable BioZ threshold detection.

int	max30009_set_bioz_thresholds (struct max30009_dev *device, uint8_t low_thresh, uint8_t high_thresh)
	Set BioZ threshold values.

int	max30009_set_demod_clk_phases (struct max30009_dev *device, bool i_clk_phase, bool q_clk_phase)
	Set demodulation clock phases.

int	max30009_enable_ina_chopping (struct max30009_dev *device, bool enable)
	Enable or disable INA chopping.

int	max30009_set_channel_freq_select (struct max30009_dev *device, bool fsel)
	Set channel frequency select.

int	max30009_enable_standby_mode (struct max30009_dev *device, bool keep_rx_on)
	Enable or disable standby mode.

int	max30009_enable_calibration (struct max30009_dev *device, bool enable)
	Enable or disable calibration mode.

int	max30009_enable_calibration_mux (struct max30009_dev *device, bool enable)
	Enable or disable calibration MUX.

int	max30009_calibration_connect_only (struct max30009_dev *device, bool cal_only)
	Set calibration connect-only mode.

int	max30009_set_bia_load_resistor (struct max30009_dev *device, enum max30009_bia_rsel rsel)
	Set BIA (Body Impedance Analysis) load resistor.

int	max30009_enable_bia_bist (struct max30009_dev *device, bool enable)
	Enable or disable BIA BIST (Built-In Self Test)

int	max30009_set_gsr_load_resistor (struct max30009_dev *device, enum max30009_gsr_rsel rsel)
	Set GSR (Galvanic Skin Response) load resistor.

int	max30009_enable_gsr_load (struct max30009_dev *device, bool enable)
	Enable or disable GSR load resistor.

int	max30009_enable_internal_load (struct max30009_dev *device, bool enable)
	Enable or disable internal load resistor.

int	max30009_enable_external_load (struct max30009_dev *device, bool enable)
	Enable or disable external load connection.

int	max30009_assign_electrodes (struct max30009_dev *device, uint8_t bip_assign, uint8_t bin_assign, uint8_t drvp_assign, uint8_t drvn_assign)
	Assign electrodes to measurement channels.

int	max30009_read_bist_error (struct max30009_dev device, uint8_t error)
	Read BIST error value.

int	max30009_lead_off_config (struct max30009_dev *device, bool enable, uint8_t threshold)
	Configure lead-off detection.

int	max30009_set_lead_off_current (struct max30009_dev *device, enum max30009_loff_current current)
	Set lead-off detection current magnitude.

int	max30009_set_lead_off_polarity (struct max30009_dev *device, bool positive)
	Set lead-off detection current polarity.

int	max30009_enable_external_lead_off (struct max30009_dev *device, bool enable)
	Enable or disable external lead-off detection.

int	max30009_enable_drive_oor_detect (struct max30009_dev *device, bool enable)
	Enable or disable drive out-of-range detection.

int	max30009_enable_ultra_low_power_lead_on (struct max30009_dev *device, bool enable)
	Enable or disable ultra-low-power lead-on detection.

int	max30009_get_detailed_lead_status (struct max30009_dev device, struct max30009_lead_status status)
	Get detailed lead detection status.

int	max30009_set_lead_bias (struct max30009_dev *device, enum max30009_rbias_val rbias_value, bool enable_bip, bool enable_bin)
	Configure lead bias resistor and enable for receive electrodes.

int	max30009_set_pll_config (struct max30009_dev device, struct max30009_pll_config pll_config)
	Set complete PLL configuration.

int	max30009_get_pll_config (struct max30009_dev device, struct max30009_pll_config pll_config)
	Get complete PLL configuration.

int	max30009_set_fifo_config (struct max30009_dev device, struct max30009_fifo_config fifo_config)
	Set complete FIFO configuration.

int	max30009_get_fifo_config (struct max30009_dev device, struct max30009_fifo_config fifo_config)
	Get complete FIFO configuration.

int	max30009_set_bioz_config (struct max30009_dev device, struct max30009_bioz_config bioz_config)
	Set complete BioZ configuration.

int	max30009_get_bioz_config (struct max30009_dev device, struct max30009_bioz_config bioz_config)
	Get complete BioZ configuration.

int	max30009_set_bioz_mux_config (struct max30009_dev device, struct max30009_bioz_mux_config mux_config)
	Set complete BioZ MUX configuration.

int	max30009_get_bioz_mux_config (struct max30009_dev device, struct max30009_bioz_mux_config mux_config)
	Get complete BioZ MUX configuration.

int	max30009_set_lead_detect_config (struct max30009_dev device, struct max30009_lead_detect_config lead_config)
	Set complete lead detection configuration.

int	max30009_get_lead_detect_config (struct max30009_dev device, struct max30009_lead_detect_config lead_config)
	Get complete lead detection configuration.

int	max30009_interrupt_config (struct max30009_dev *device, uint8_t int1_mask, uint8_t int2_mask)
	Configure interrupt enables.

int	max30009_enable_interrupt (struct max30009_dev *device, enum max30009_interrupt interrupt, bool enable)
	Enable or disable a specific interrupt.

int	max30009_clear_status (struct max30009_dev *device)
	Clear interrupt status registers.

Detailed Description

Implementation of MAX30009 driver.

Author: Edelweise Escala (edelw.nosp@m.eise.nosp@m..esca.nosp@m.la@a.nosp@m.nalog.nosp@m..com)

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of Analog Devices, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES, INC. “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Macro Definition Documentation

◆ MAX30009_SPI_READ

#define MAX30009_SPI_READ 0x80

◆ MAX30009_SPI_WRITE

#define MAX30009_SPI_WRITE 0x00

Function Documentation

◆ max30009_assign_electrodes()

int max30009_assign_electrodes	(	struct max30009_dev *	device,
		uint8_t	bip_assign,
		uint8_t	bin_assign,
		uint8_t	drvp_assign,
		uint8_t	drvn_assign )

Assign electrodes to measurement channels.

Parameters

device	- Device descriptor
bip_assign	- BIP (positive receive) electrode assignment
bin_assign	- BIN (negative receive) electrode assignment
drvp_assign	- DRVP (positive drive) electrode assignment
drvn_assign	- DRVN (negative drive) electrode assignment

Returns: 0 in case of success, negative error code otherwise

◆ max30009_bioz_bg_enable()

int max30009_bioz_bg_enable	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable BioZ bandgap.

Parameters

device	- MAX30009 device descriptor
enable	- True to enable bandgap, false to disable

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_bioz_enable()

int max30009_bioz_enable	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable BioZ measurement.

Parameters

device	- MAX30009 device descriptor
enable	- True to enable BioZ, false to disable

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_bioz_i_enable()

int max30009_bioz_i_enable	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable BioZ I channel.

Parameters

device	- MAX30009 device descriptor
enable	- True to enable I channel, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_bioz_q_enable()

int max30009_bioz_q_enable	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable BioZ Q channel.

Parameters

device	- MAX30009 device descriptor
enable	- True to enable Q channel, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_calibration_connect_only()

int max30009_calibration_connect_only	(	struct max30009_dev *	device,
		bool	cal_only )

Set calibration connect-only mode.

Parameters

device	- Device descriptor
cal_only	- True for connect-only mode, false for normal

Returns: 0 in case of success, negative error code otherwise

◆ max30009_check_lead_off()

int max30009_check_lead_off	(	struct max30009_dev *	device,
		bool *	leads_on )

Check lead-off detection status.

Parameters

device	- MAX30009 device descriptor
leads_on	- True if leads connected

Returns: 0 in case of success, negative error code otherwise

◆ max30009_clear_fifo_status()

int max30009_clear_fifo_status ( struct max30009_dev * device )

Clear FIFO status flags.

Parameters

device - Device descriptor

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_clear_status()

int max30009_clear_status ( struct max30009_dev * device )

Clear interrupt status registers.

Parameters

device - MAX30009 device descriptor

Returns: 0 in case of success, negative error code otherwise

Note: Reading the status registers clears them

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◆ max30009_clock_fine_tune()

int max30009_clock_fine_tune	(	struct max30009_dev *	device,
		uint8_t	tune_val )

Fine tune internal clock frequency.

Parameters

device	- Device descriptor
tune_val	- Fine tune value (0-31, ±0.78% adjustment range)

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_configure_i2c_broadcast()

int max30009_configure_i2c_broadcast	(	struct max30009_dev *	device,
		bool	enable,
		uint8_t	broadcast_addr )

Configure I2C broadcast address.

Parameters

device	- Device descriptor
enable	- True to enable broadcast, false to disable
broadcast_addr	- Broadcast address (7-bit, shifted left by 1)

Returns: 0 in case of success, negative error code otherwise

Note: Allows multiple devices to respond to broadcast address

◆ max30009_configure_int_pin()

int max30009_configure_int_pin	(	struct max30009_dev *	device,
		uint8_t	func_cfg,
		uint8_t	out_cfg )

Configure INT pin function and output.

Parameters

device	- Device descriptor
func_cfg	- Function configuration (0-3)
out_cfg	- Output configuration (0-3)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_configure_trig_pin()

int max30009_configure_trig_pin	(	struct max30009_dev *	device,
		uint8_t	input_cfg,
		uint8_t	output_cfg )

Configure TRIG pin input and output.

Parameters

device	- Device descriptor
input_cfg	- Input configuration (0 or 1)
output_cfg	- Output configuration (0-3)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_disable_differential_mode()

int max30009_disable_differential_mode	(	struct max30009_dev *	device,
		bool	disable )

Disable differential mode (enable single-ended)

Parameters

device	- Device descriptor
disable	- True to disable differential mode, false for differential

Returns: 0 in case of success, negative error code otherwise

◆ max30009_disable_i2c()

int max30009_disable_i2c ( struct max30009_dev * device )

Disable I2C interface (SPI only mode)

Parameters

device - Device descriptor

Returns: 0 in case of success, negative error code otherwise

Note: After disabling I2C, device only responds to SPI

◆ max30009_enable_bia_bist()

int max30009_enable_bia_bist	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable BIA BIST (Built-In Self Test)

Parameters

device	- Device descriptor
enable	- True to enable BIST, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_bioz_threshold()

int max30009_enable_bioz_threshold	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable BioZ threshold detection.

Parameters

device	- Device descriptor
enable	- True to enable threshold detection, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_calibration()

int max30009_enable_calibration	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable calibration mode.

Parameters

device	- Device descriptor
enable	- True to enable calibration, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_calibration_mux()

int max30009_enable_calibration_mux	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable calibration MUX.

Parameters

device	- Device descriptor
enable	- True to enable calibration MUX, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_dac_reset()

int max30009_enable_dac_reset	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable DAC reset.

Parameters

device	- Device descriptor
enable	- True to enable DAC reset, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_dc_restore()

int max30009_enable_dc_restore	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable DC restore circuit.

Parameters

device	- Device descriptor
enable	- True to enable DC restore, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_drive_oor_detect()

int max30009_enable_drive_oor_detect	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable drive out-of-range detection.

Parameters

device	- Device descriptor
enable	- True to enable drive OOR detection, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_drive_reset()

int max30009_enable_drive_reset	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable drive reset.

Parameters

device	- Device descriptor
enable	- True to enable drive reset, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_external_cap()

int max30009_enable_external_cap	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable external capacitor.

Parameters

device	- Device descriptor
enable	- True to enable external capacitor, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_external_lead_off()

int max30009_enable_external_lead_off	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable external lead-off detection.

Parameters

device	- Device descriptor
enable	- True to enable external lead-off detection, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_external_load()

int max30009_enable_external_load	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable external load connection.

Parameters

device	- Device descriptor
enable	- True to enable external load connection, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_external_resistor()

int max30009_enable_external_resistor	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable external resistor for current drive.

Parameters

device	- Device descriptor
enable	- True to enable external resistor, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_fast_start()

int max30009_enable_fast_start	(	struct max30009_dev *	device,
		bool	enable,
		bool	manual )

Enable or disable fast start mode.

Parameters

device	- Device descriptor
enable	- True to enable fast start, false to disable
manual	- True for manual trigger, false for automatic

Returns: 0 in case of success, negative error code otherwise

Note: Fast start reduces settling time for faster measurements

◆ max30009_enable_gsr_load()

int max30009_enable_gsr_load	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable GSR load resistor.

Parameters

device	- Device descriptor
enable	- True to enable GSR load, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_ina_chopping()

int max30009_enable_ina_chopping	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable INA chopping.

Parameters

device	- Device descriptor
enable	- True to enable chopping (improves CMRR), false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_internal_load()

int max30009_enable_internal_load	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable internal load resistor.

Parameters

device	- Device descriptor
enable	- True to enable internal load, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_enable_interrupt()

int max30009_enable_interrupt	(	struct max30009_dev *	device,
		enum max30009_interrupt	interrupt,
		bool	enable )

Enable or disable a specific interrupt.

Parameters

device	- MAX30009 device descriptor
interrupt	- Interrupt type from max30009_interrupt enum
enable	- True to enable, false to disable

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_enable_rapid_lead_off()

int max30009_enable_rapid_lead_off	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable rapid lead-off detection.

Parameters

device	- Device descriptor
enable	- True to enable rapid mode, false for normal

Returns: 0 in case of success, negative error code otherwise

Note: Rapid mode detects lead-off faster but with higher current consumption

◆ max30009_enable_standby_mode()

int max30009_enable_standby_mode	(	struct max30009_dev *	device,
		bool	keep_rx_on )

Enable or disable standby mode.

Parameters

device	- Device descriptor
keep_rx_on	- True to keep receive path on in standby, false to power down completely

Returns: 0 in case of success, negative error code otherwise

Note: Standby mode reduces power consumption while maintaining quick wake-up

◆ max30009_enable_ultra_low_power_lead_on()

int max30009_enable_ultra_low_power_lead_on	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable ultra-low-power lead-on detection.

Parameters

device	- Device descriptor
enable	- True to enable ULP lead-on detection, false to disable

Returns: 0 in case of success, negative error code otherwise

◆ max30009_fifo_decode_sample()

int max30009_fifo_decode_sample	(	uint8_t *	raw_data,
		struct max30009_fifo_sample *	sample )

Decode a 3-byte FIFO sample into type and data.

Parameters

raw_data	- 3-byte raw FIFO data
sample	- Pointer to store decoded sample (type and data)

Returns: 0 in case of success, negative error code otherwise

FIFO Data Format (24 bits total):

Bits 23-20: TAG[3:0] - Sample type identifier
Bits 19-0: DATA[19:0] - 20-bit signed measurement data

TAG Values:

0x1: BioZ In-Phase sample
0x2: BioZ Quadrature sample
0xE: Marker (0xFFFFFE - all 1s except bit 0)
0xF: Invalid sample (0xFFFFFF - all 1s)

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◆ max30009_fifo_flush()

int max30009_fifo_flush ( struct max30009_dev * device )

Flush FIFO contents.

Parameters

device - MAX30009 device descriptor

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_fifo_get_count()

int max30009_fifo_get_count	(	struct max30009_dev *	device,
		uint16_t *	count )

Get FIFO data count.

Parameters

device	- MAX30009 device descriptor
count	- Pointer to store FIFO data count (0-256)

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_fifo_get_ovf_count()

int max30009_fifo_get_ovf_count	(	struct max30009_dev *	device,
		uint16_t *	count )

Get FIFO overflow data count.

Parameters

device	- MAX30009 device descriptor
count	- Pointer to store FIFO overflow data count (0-128)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_get_bioz_config()

int max30009_get_bioz_config	(	struct max30009_dev *	device,
		struct max30009_bioz_config *	bioz_config )

Get complete BioZ configuration.

Parameters

device	- Device descriptor
bioz_config	- Pointer to store BioZ configuration

Returns: 0 in case of success, negative error code otherwise

◆ max30009_get_bioz_mux_config()

int max30009_get_bioz_mux_config	(	struct max30009_dev *	device,
		struct max30009_bioz_mux_config *	mux_config )

Get complete BioZ MUX configuration.

Parameters

device	- Device descriptor
mux_config	- Pointer to store BioZ MUX configuration

Returns: 0 in case of success, negative error code otherwise

◆ max30009_get_detailed_lead_status()

int max30009_get_detailed_lead_status	(	struct max30009_dev *	device,
		struct max30009_lead_status *	status )

Get detailed lead detection status.

Parameters

device	- Device descriptor
status	- Pointer to store detailed lead status information

Returns: 0 in case of success, negative error code otherwise

◆ max30009_get_fifo_config()

int max30009_get_fifo_config	(	struct max30009_dev *	device,
		struct max30009_fifo_config *	fifo_config )

Get complete FIFO configuration.

Parameters

device	- Device descriptor
fifo_config	- Pointer to store FIFO configuration

Returns: 0 in case of success, negative error code otherwise

◆ max30009_get_fifo_pointers()

int max30009_get_fifo_pointers	(	struct max30009_dev *	device,
		uint8_t *	write_ptr,
		uint8_t *	read_ptr )

Get FIFO read and write pointers.

Parameters

device	- Device descriptor
write_ptr	- Pointer to store write pointer value (0-255)
read_ptr	- Pointer to store read pointer value (0-255)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_get_fifo_watermark()

int max30009_get_fifo_watermark	(	struct max30009_dev *	device,
		uint8_t *	watermark )

Gets the FIFO watermark level of the device.

Parameters

device	- Device descriptor.
watermark	- Pointer to a variable where the current FIFO watermark level

Returns: 0 in case of success, negative error code otherwise.

◆ max30009_get_lead_detect_config()

int max30009_get_lead_detect_config	(	struct max30009_dev *	device,
		struct max30009_lead_detect_config *	lead_config )

Get complete lead detection configuration.

Parameters

device	- Device descriptor
lead_config	- Pointer to store lead detection configuration

Returns: 0 in case of success, negative error code otherwise

◆ max30009_get_pll_config()

int max30009_get_pll_config	(	struct max30009_dev *	device,
		struct max30009_pll_config *	pll_config )

Get complete PLL configuration.

Parameters

device	- Device descriptor
pll_config	- Pointer to store PLL configuration

Returns: 0 in case of success, negative error code otherwise

◆ max30009_get_status()

int max30009_get_status	(	struct max30009_dev *	device,
		struct max30009_status *	status )

Get device status.

Parameters

device	- MAX30009 device descriptor
status	- Pointer to store device status information

Returns: 0 in case of success, negative error code otherwise

◆ max30009_init()

int max30009_init	(	struct max30009_dev **	device,
		struct max30009_init_param *	init_param )

Initialize the MAX30009 device.

Parameters

device	- Pointer to the device descriptor pointer
init_param	- Initialization parameters

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_insert_fifo_marker()

int max30009_insert_fifo_marker ( struct max30009_dev * device )

Insert marker into FIFO data stream.

Parameters

device - Device descriptor

Returns: 0 in case of success, negative error code otherwise

Note: Marker is used to identify specific data points in FIFO stream

◆ max30009_interrupt_config()

int max30009_interrupt_config	(	struct max30009_dev *	device,
		uint8_t	int1_mask,
		uint8_t	int2_mask )

Configure interrupt enables.

Parameters

device	- MAX30009 device descriptor
int1_mask	- Interrupt enable mask for INTERRUPT_ENABLE1 register
int2_mask	- Interrupt enable mask for INTERRUPT_ENABLE2 register

Returns: 0 in case of success, negative error code otherwise

◆ max30009_lead_off_config()

int max30009_lead_off_config	(	struct max30009_dev *	device,
		bool	enable,
		uint8_t	threshold )

Configure lead-off detection.

Parameters

device	- MAX30009 device descriptor
enable	- True to enable lead-off detection, false to disable
threshold	- Lead-off detection threshold (0-15)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_pll_enable()

int max30009_pll_enable	(	struct max30009_dev *	device,
		bool	enable )

Enable or disable PLL.

Parameters

device	- Device descriptor
enable	- True to enable PLL, false to disable

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_pll_set_dividers()

int max30009_pll_set_dividers	(	struct max30009_dev *	device,
		uint16_t	mdiv,
		enum max30009_pll_ndiv	ndiv,
		enum max30009_pll_kdiv	kdiv )

Configure PLL dividers.

Parameters

device	- Device descriptor
mdiv	- M divider value (0-1023, PLL_CLK = (MDIV+1) × REF_CLK)
ndiv	- N divider value (MAX30009_NDIV_512 or MAX30009_NDIV_1024)
kdiv	- K divider value (MAX30009_KDIV_1 to MAX30009_KDIV_8192)

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_pll_set_lock_window()

int max30009_pll_set_lock_window	(	struct max30009_dev *	device,
		bool	lock_window )

Set PLL lock window.

Parameters

device	- Device descriptor
lock_window	- True to enable extended lock window, false for normal

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_read_bist_error()

int max30009_read_bist_error	(	struct max30009_dev *	device,
		uint8_t *	error )

Read BIST error value.

Parameters

device	- Device descriptor
error	- Pointer to store BIST error value

Returns: 0 in case of success, negative error code otherwise

◆ max30009_read_fifo_data()

int max30009_read_fifo_data	(	struct max30009_dev *	device,
		uint8_t *	data,
		uint32_t	len )

Read data from FIFO.

Parameters

device	- MAX30009 device descriptor
data	- Buffer to store FIFO data
len	Number of bytes to read from the FIFO.

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_reg_read()

int max30009_reg_read	(	struct max30009_dev *	device,
		uint8_t	reg_addr,
		uint8_t *	data )

Read a single byte from register.

Parameters

device	- MAX30009 device descriptor
reg_addr	- Register address to read from
data	- Pointer to variable where read byte will be stored

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_reg_read_multiple()

int max30009_reg_read_multiple	(	struct max30009_dev *	device,
		uint8_t	reg_addr,
		uint8_t *	data,
		uint32_t	len )

Read multiple bytes from register.

Parameters

device	- MAX30009 device descriptor
reg_addr	- Register address to read from
data	- Pointer to buffer where read data will be stored
len	- Number of bytes to read

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_reg_update()

int max30009_reg_update	(	struct max30009_dev *	device,
		uint8_t	reg_addr,
		uint8_t	mask,
		uint8_t	value )

Update specific bits in a register.

Parameters

device	- MAX30009 device descriptor
reg_addr	- Register address to update
mask	- Bit mask indicating which bits to update
value	- New value for the field, given in raw (unshifted) form. It is shifted into the mask position internally via no_os_field_prep, so callers must NOT pre-shift with no_os_field_prep.

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_reg_write()

int max30009_reg_write	(	struct max30009_dev *	device,
		uint8_t	reg_addr,
		uint8_t	data )

Write a single byte to register.

Parameters

device	- MAX30009 device descriptor
reg_addr	- Register address to write to
data	- Byte value to be written

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_reg_write_multiple()

int max30009_reg_write_multiple	(	struct max30009_dev *	device,
		uint8_t	reg_addr,
		uint8_t *	data,
		uint32_t	len )

Write multiple bytes to register.

Parameters

device	- MAX30009 device descriptor
reg_addr	- Register address to write to
data	- Pointer to buffer containing data to be written
len	- Number of bytes to write

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_remove()

int max30009_remove ( struct max30009_dev * device )

Remove the MAX30009 device and free resources.

Parameters

device - MAX30009 device descriptor

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_set_a_full_type()

int max30009_set_a_full_type	(	struct max30009_dev *	device,
		bool	type )

Set almost-full interrupt type.

Parameters

device	- Device descriptor
type	- True for asserted when count >= threshold, False for count > threshold

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_set_adc_osr()

int max30009_set_adc_osr	(	struct max30009_dev *	device,
		enum max30009_adc_osr	osr )

Set ADC oversampling ratio.

Parameters

device	- Device descriptor
osr	- ADC OSR value (MAX30009_ADC_OSR_8 through _1024)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_amp_bandwidth()

int max30009_set_amp_bandwidth	(	struct max30009_dev *	device,
		uint8_t	amp_bw )

Set amplifier bandwidth.

Parameters

device	- Device descriptor
amp_bw	- Amplifier bandwidth setting (0-3)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_amp_range()

int max30009_set_amp_range	(	struct max30009_dev *	device,
		uint8_t	amp_range )

Set amplifier range.

Parameters

device	- Device descriptor
amp_range	- Amplifier range setting (0-3)

Returns: 0 in case of success, negative error code otherwise

Note: Optimizes ADC dynamic range for different electrode impedances

◆ max30009_set_analog_hpf()

int max30009_set_analog_hpf	(	struct max30009_dev *	device,
		enum max30009_ahpf	ahpf )

Set analog high-pass filter.

Parameters

device	- Device descriptor
ahpf	- Analog HPF setting (BYPASS, or 100Hz-10kHz)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_bia_load_resistor()

int max30009_set_bia_load_resistor	(	struct max30009_dev *	device,
		enum max30009_bia_rsel	rsel )

Set BIA (Body Impedance Analysis) load resistor.

Parameters

device	- Device descriptor
rsel	- Resistor selection (280, 600, 900, or 5100 ohms)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_bioz_config()

int max30009_set_bioz_config	(	struct max30009_dev *	device,
		struct max30009_bioz_config *	bioz_config )

Set complete BioZ configuration.

Parameters

device	- Device descriptor
bioz_config	- BioZ configuration structure

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_set_bioz_mux_config()

int max30009_set_bioz_mux_config	(	struct max30009_dev *	device,
		struct max30009_bioz_mux_config *	mux_config )

Set complete BioZ MUX configuration.

Parameters

device	- Device descriptor
mux_config	- BioZ MUX configuration structure

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_set_bioz_thresholds()

int max30009_set_bioz_thresholds	(	struct max30009_dev *	device,
		uint8_t	low_thresh,
		uint8_t	high_thresh )

Set BioZ threshold values.

Parameters

device	- Device descriptor
low_thresh	- Low threshold value (0-255)
high_thresh	- High threshold value (0-255)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_channel_freq_select()

int max30009_set_channel_freq_select	(	struct max30009_dev *	device,
		bool	fsel )

Set channel frequency select.

Parameters

device	- Device descriptor
fsel	- Frequency select bit

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_clock_source()

int max30009_set_clock_source	(	struct max30009_dev *	device,
		bool	use_external,
		bool	use_32768_hz )

Configure clock source.

Parameters

device	- Device descriptor
use_external	- True for external clock, false for internal oscillator
use_32768_hz	- True for 32.768 kHz, false for 32.0 kHz

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_set_comparison_mode()

int max30009_set_comparison_mode	(	struct max30009_dev *	device,
		uint8_t	cmp_mode )

Set comparison mode for threshold detection.

Parameters

device	- Device descriptor
cmp_mode	- Comparison mode (0-3)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_dac_osr()

int max30009_set_dac_osr	(	struct max30009_dev *	device,
		enum max30009_dac_osr	osr )

Set DAC oversampling ratio.

Parameters

device	- Device descriptor
osr	- DAC OSR value (MAX30009_DAC_OSR_32, _64, _128, or _256)

Returns: 0 in case of success, negative error code otherwise

Note: Affects stimulus frequency: F_BIOZ = PLL_CLK / (KDIV × DAC_OSR)

◆ max30009_set_demod_clk_phases()

int max30009_set_demod_clk_phases	(	struct max30009_dev *	device,
		bool	i_clk_phase,
		bool	q_clk_phase )

Set demodulation clock phases.

Parameters

device	- Device descriptor
i_clk_phase	- I channel clock phase (true for inverted)
q_clk_phase	- Q channel clock phase (true for inverted)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_digital_hpf()

int max30009_set_digital_hpf	(	struct max30009_dev *	device,
		enum max30009_dhpf	dhpf )

Set digital high-pass filter.

Parameters

device	- Device descriptor
dhpf	- Digital HPF setting

Returns: 0 in case of success, negative error code otherwise

Note: Used to remove DC offset from bioimpedance signal

◆ max30009_set_digital_lpf()

int max30009_set_digital_lpf	(	struct max30009_dev *	device,
		enum max30009_dlpf	dlpf )

Set digital low-pass filter.

Parameters

device	- Device descriptor
dlpf	- Digital LPF setting

Returns: 0 in case of success, negative error code otherwise

Note: Used for anti-aliasing and noise reduction

◆ max30009_set_drive_current_detailed()

int max30009_set_drive_current_detailed	(	struct max30009_dev *	device,
		uint8_t	idrv_range,
		uint8_t	vdrv_mag )

Set drive current with detailed control.

Parameters

device	- Device descriptor
idrv_range	- Current range setting (0-3)
vdrv_mag	- Voltage magnitude setting (0-3)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_drive_mode()

int max30009_set_drive_mode	(	struct max30009_dev *	device,
		enum max30009_drive_mode	mode )

Set drive mode (current, voltage, H-bridge, or standby)

Parameters

device	- Device descriptor
mode	- Drive mode (SINE_CURRENT, SINE_VOLTAGE, H_BRIDGE, or STANDBY)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_fifo_config()

int max30009_set_fifo_config	(	struct max30009_dev *	device,
		struct max30009_fifo_config *	fifo_config )

Set complete FIFO configuration.

Parameters

device	- Device descriptor
fifo_config	- FIFO configuration structure

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_fifo_rollover()

int max30009_set_fifo_rollover	(	struct max30009_dev *	device,
		bool	rollover )

Set FIFO rollover mode.

Parameters

device	- Device descriptor
rollover	- True to enable rollover mode, false to stop when full

Returns: 0 in case of success, negative error code otherwise

Note: In rollover mode, new data overwrites oldest data when FIFO is full

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◆ max30009_set_fifo_watermark()

int max30009_set_fifo_watermark	(	struct max30009_dev *	device,
		uint8_t	watermark )

Set FIFO watermark level.

Parameters

device	- Device descriptor
watermark	- Watermark level (number of samples before FIFO generates an interrupt).

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_set_gsr_load_resistor()

int max30009_set_gsr_load_resistor	(	struct max30009_dev *	device,
		enum max30009_gsr_rsel	rsel )

Set GSR (Galvanic Skin Response) load resistor.

Parameters

device	- Device descriptor
rsel	- Resistor selection (25.7k, 101k, 505k, or 1M ohms)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_ina_mode()

int max30009_set_ina_mode	(	struct max30009_dev *	device,
		bool	low_power )

Set INA (Instrumentation Amplifier) mode.

Parameters

device	- Device descriptor
low_power	- True for low-power mode, false for low-noise mode

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_lead_bias()

int max30009_set_lead_bias	(	struct max30009_dev *	device,
		enum max30009_rbias_val	rbias_value,
		bool	enable_bip,
		bool	enable_bin )

Configure lead bias resistor and enable for receive electrodes.

Parameters

device	- Device descriptor
rbias_value	- Bias resistor value (50M, 100M, 200M ohms)
enable_bip	- True to enable bias on BIP (positive receive) electrode
enable_bin	- True to enable bias on BIN (negative receive) electrode

Returns: 0 in case of success, negative error code otherwise

Note: Lead bias pulls electrodes to mid-supply for proper DC operating point

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◆ max30009_set_lead_detect_config()

int max30009_set_lead_detect_config	(	struct max30009_dev *	device,
		struct max30009_lead_detect_config *	lead_config )

Set complete lead detection configuration.

Parameters

device	- Device descriptor
lead_config	- Lead detection configuration structure

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_set_lead_off_current()

int max30009_set_lead_off_current	(	struct max30009_dev *	device,
		enum max30009_loff_current	current )

Set lead-off detection current magnitude.

Parameters

device	- Device descriptor
current	- Lead-off current setting (5nA, 11nA, 22nA, 55nA, or 110nA)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_lead_off_polarity()

int max30009_set_lead_off_polarity	(	struct max30009_dev *	device,
		bool	positive )

Set lead-off detection current polarity.

Parameters

device	- Device descriptor
positive	- True for positive polarity, false for negative polarity

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_master_mode()

int max30009_set_master_mode	(	struct max30009_dev *	device,
		bool	is_master )

Set master/slave mode for PLL synchronization.

Parameters

device	- Device descriptor
is_master	- True for master mode (generates FCLK_SYS), False for slave mode (uses external FCLK_SYS)

Returns: 0 in case of success, negative error code otherwise

◆ max30009_set_pll_config()

int max30009_set_pll_config	(	struct max30009_dev *	device,
		struct max30009_pll_config *	pll_config )

Set complete PLL configuration.

Parameters

device	- Device descriptor
pll_config	- PLL configuration structure

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_set_power_mode()

int max30009_set_power_mode	(	struct max30009_dev *	device,
		bool	shutdown )

Set power mode (shutdown or active)

Parameters

device	- MAX30009 device descriptor
shutdown	- True to enter shutdown mode, false for active mode

Returns: 0 in case of success, negative error code otherwise

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◆ max30009_soft_reset()

int max30009_soft_reset ( struct max30009_dev * device )

Perform software reset.

Parameters

device - MAX30009 device descriptor

Returns: 0 in case of success, negative error code otherwise

Note: Follows the datasheet-required soft-reset sequence: BIOZ_BG_EN=1, SHDN=0, REF_CLK_SEL=0, PLL_EN=0, wait >=1ms, RESET=1. Re-enable the PLL after soft reset via max30009_pll_enable().

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◆ max30009_timing_system_reset()

int max30009_timing_system_reset ( struct max30009_dev * device )

Trigger timing system reset for PLL synchronization.

Parameters

device - Device descriptor

Returns: 0 in case of success, negative error code otherwise

Note: Use this after PLL configuration changes to synchronize timing system

◆ max30009_verify_part_id()

int max30009_verify_part_id ( struct max30009_dev * device )

Read device part ID.

Parameters

device - MAX30009 device descriptor

Returns: 0 in case of success, negative error code otherwise

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Macros

Functions

Detailed Description

Macro Definition Documentation

◆ MAX30009_SPI_READ

◆ MAX30009_SPI_WRITE

Function Documentation

◆ max30009_assign_electrodes()

◆ max30009_bioz_bg_enable()

◆ max30009_bioz_enable()

◆ max30009_bioz_i_enable()

◆ max30009_bioz_q_enable()

◆ max30009_calibration_connect_only()

◆ max30009_check_lead_off()

◆ max30009_clear_fifo_status()

◆ max30009_clear_status()

◆ max30009_clock_fine_tune()

◆ max30009_configure_i2c_broadcast()

◆ max30009_configure_int_pin()

◆ max30009_configure_trig_pin()

◆ max30009_disable_differential_mode()

◆ max30009_disable_i2c()

◆ max30009_enable_bia_bist()

◆ max30009_enable_bioz_threshold()

◆ max30009_enable_calibration()

◆ max30009_enable_calibration_mux()

◆ max30009_enable_dac_reset()

◆ max30009_enable_dc_restore()

◆ max30009_enable_drive_oor_detect()

◆ max30009_enable_drive_reset()

◆ max30009_enable_external_cap()

◆ max30009_enable_external_lead_off()

◆ max30009_enable_external_load()

◆ max30009_enable_external_resistor()

◆ max30009_enable_fast_start()

◆ max30009_enable_gsr_load()

◆ max30009_enable_ina_chopping()

◆ max30009_enable_internal_load()

◆ max30009_enable_interrupt()

◆ max30009_enable_rapid_lead_off()

◆ max30009_enable_standby_mode()

◆ max30009_enable_ultra_low_power_lead_on()

◆ max30009_fifo_decode_sample()

◆ max30009_fifo_flush()

◆ max30009_fifo_get_count()

◆ max30009_fifo_get_ovf_count()

◆ max30009_get_bioz_config()

◆ max30009_get_bioz_mux_config()

◆ max30009_get_detailed_lead_status()

◆ max30009_get_fifo_config()

◆ max30009_get_fifo_pointers()

◆ max30009_get_fifo_watermark()

◆ max30009_get_lead_detect_config()

◆ max30009_get_pll_config()

◆ max30009_get_status()

◆ max30009_init()

◆ max30009_insert_fifo_marker()

◆ max30009_interrupt_config()

◆ max30009_lead_off_config()

◆ max30009_pll_enable()

◆ max30009_pll_set_dividers()

◆ max30009_pll_set_lock_window()

◆ max30009_read_bist_error()

◆ max30009_read_fifo_data()

◆ max30009_reg_read()

◆ max30009_reg_read_multiple()

◆ max30009_reg_update()

◆ max30009_reg_write()

◆ max30009_reg_write_multiple()

◆ max30009_remove()

◆ max30009_set_a_full_type()

◆ max30009_set_adc_osr()

◆ max30009_set_amp_bandwidth()

◆ max30009_set_amp_range()

◆ max30009_set_analog_hpf()

◆ max30009_set_bia_load_resistor()

◆ max30009_set_bioz_config()

◆ max30009_set_bioz_mux_config()

◆ max30009_set_bioz_thresholds()

◆ max30009_set_channel_freq_select()