Device driver interface for the LC709203F Battery Fuel Gauge. More...

Detailed Description

Device driver interface for the LC709203F Battery Fuel Gauge.

Files
file	lc709203f.h
	Device driver interface for the LC709203F Battery Fuel Gauge.

Data Structures
struct	lc709203f_params_t
	Parameter struct for driver initialization. More...

struct	lc709203f_t
	Device descriptor for the fuel gauge. More...

Macros
#define	LC709203F_CRC_POLYNOMIAL 0x07
	CRC Polynomial.

Typedefs
typedef void(*	lc709203f_cb_t) (void *arg)
	Typedef for the Callback function. More...

Enumerations
enum	{ LC709203F_OK = 0, LC709203F_NOI2C = -1, LC709203F_CELL_TEMP_INVALID = -2 }

Functions
int	lc709203f_init (lc709203f_t dev, const lc709203f_params_t params)
	initializes the sensor and i2c More...

int16_t	lc709203f_get_voltage (const lc709203f_t *dev)
	reads battery voltage from Sensor More...

int16_t	lc709203f_get_rsoc (const lc709203f_t *dev)
	reads battery state of charge from Sensor More...

int16_t	lc709203f_get_ite (const lc709203f_t *dev)
	reads battery indicator to empty from Sensor More...

int16_t	lc709203f_get_id (const lc709203f_t *dev)
	reads Sensor id More...

int16_t	lc709203f_get_cell_temp (const lc709203f_t *dev)
	reads cell temperature from sensor More...

lc709203f_temp_obtaining_mode_t	lc709203f_get_status_bit (const lc709203f_t *dev)
	reads status bit register (Temperature obtaining mode) More...

lc709203f_power_mode_t	lc709203f_get_power_mode (const lc709203f_t *dev)
	reads IC Power Mode register More...

int16_t	lc709203f_get_alarm_low_voltage (const lc709203f_t *dev)
	reads Alarm Low Cell Voltage Register More...

int16_t	lc709203f_get_alarm_low_rsoc (const lc709203f_t *dev)
	reads Alarm Low RSOC Register More...

int16_t	lc709203f_get_change_of_parameter (const lc709203f_t *dev)
	reads Change of the Parameter register, Battery Profile selection More...

int16_t	lc709203f_get_apt (const lc709203f_t *dev)
	reads APT (Adjustment Pack Thermistor) value to adjust temperature measurement delay timing. More...

int16_t	lc709203f_get_apa (const lc709203f_t *dev)
	reads APA (Adjustment Pack Application) in 1mOhm steps value to adjust temperature measurement delay timing. More...

lc709203f_current_direction_t	lc709203f_get_current_direction (const lc709203f_t *dev)
	reads Current Direction Register More...

int16_t	lc709203f_get_thermistor_b (const lc709203f_t *dev)
	reads Thermistor-B register (Thermistor B constant to be measured) More...

void	lc709203f_set_rsoc_before (const lc709203f_t *dev)
	Executes RSOC initialization with sampled maximum voltage. More...

void	lc709203f_set_thermistor_b (const lc709203f_t *dev, const unsigned int value)
	Sets B constant of the Thermistor. More...

void	lc709203f_set_rsoc_initial (const lc709203f_t *dev)
	Executes RSOC initialization. More...

int8_t	lc709203f_set_cell_temp (const lc709203f_t *dev, const unsigned int value)
	Sets cell temperature in I2C-mode. More...

void	lc709203f_set_current_direction (const lc709203f_t *dev, const lc709203f_current_direction_t direction)
	Sets current direction. More...

void	lc709203f_set_apa (const lc709203f_t *dev, const uint8_t value)
	Sets parasitic impedance (adjustment pack application) More...

void	lc709203f_set_apt (const lc709203f_t *dev, const unsigned int value)
	Sets value to adjust temperature measurement delay timing (adjusmtent pack thermistor) More...

void	lc709203f_set_change_of_parameter (const lc709203f_t *dev, const lc709203f_battery_profile_t value)
	Sets battery profile. More...

void	lc709203f_set_alarm_low_rsoc (const lc709203f_t *dev, const uint8_t value)
	Sets threshold for low rsoc alert. More...

void	lc709203f_set_alarm_low_cell_voltage (const lc709203f_t *dev, const unsigned int value)
	Sets threshold for low cell voltage alert. More...

void	lc709203f_set_power_mode (const lc709203f_t *dev, const lc709203f_power_mode_t value)
	Sets power mode. More...

void	lc709203f_set_status_bit (const lc709203f_t *dev, const lc709203f_temp_obtaining_mode_t value)
	Sets temperature obtaining method. More...

enum	lc709203f_current_direction_t { AUTO_MODE = 0x0, CHARGE_MODE = 0x1, DISCHARGE_MODE = 0xffff }
	Current direction modes. More...

enum	lc709203f_battery_profile_t { BAT_PROFILE_1 = 0, BAT_PROFILE_2 = 1 }
	Battery Profile Options. More...

enum	lc709203f_power_mode_t { OPERATIONAL_MODE = 1, SLEEP_MODE = 2 }
	Power mode choices. More...

enum	lc709203f_temp_obtaining_mode_t { I2C_MODE = 0, THERMISTOR_MODE = 1 }
	Temperature obtaining mode options. More...

#define	LC709203F_REG_CELL_VOLTAGE 0x09
	Register Addresses. More...

#define	LC709203F_REG_RSOC 0x0d
	Register RSOC (Relative State of Charge)

#define	LC709203F_REG_ITE 0x0f
	Register ITE (Indicator To Empty)

#define	LC709203F_REG_ID 0x11
	Register IC Version.

#define	LC709203F_REG_CELL_TEMP 0x08
	Register Cell Temperature.

#define	LC709203F_REG_STATUS 0x16
	Register Status Bit.

#define	LC709203F_REG_POWER_MODE 0x15
	Register IC Power Mode.

#define	LC709203F_REG_ALARM_VOLTAGE 0x14
	Register Alarm Low Cell Voltage.

#define	LC709203F_REG_ALARM_RSOC 0x13
	Register Alarm Low RSOC.

#define	LC709203F_REG_CHANGE_PARAMETER 0x12
	Register Change of the parameter.

#define	LC709203F_REG_APT 0x0c
	Register APT (Adjustment Pack Thermistor)

#define	LC709203F_REG_APA 0x0b
	Register APA (Adjustment Pack Application)

#define	LC709203F_REG_CURRENT_DIRECTION 0x0a
	Register Current Direction.

#define	LC709203F_REG_THERMISTOR 0x06
	Register Thermistor B.

#define	LC709203F_REG_BEFORE_RSOC 0x04
	Register Before RSOC.

#define	LC709203F_REG_INITIAL_RSOC 0x07
	Register Initial RSOC.

Macro Definition Documentation

◆ LC709203F_REG_CELL_VOLTAGE

#define LC709203F_REG_CELL_VOLTAGE 0x09

Register Addresses.

For more information on the registers and its functions see the datasheet Register Cell Voltage

Definition at line 121 of file lc709203f.h.

Typedef Documentation

◆ lc709203f_cb_t

typedef void(* lc709203f_cb_t) (void *arg)

Typedef for the Callback function.

A function of this type will be called when an Interrupt is triggered on low RSOC or Voltage

Parameters

[in] arg Additional Arguments that will be passed to the function

Definition at line 82 of file lc709203f.h.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Enumerator
LC709203F_OK	all went as expected
LC709203F_NOI2C	error using the I2C bus
LC709203F_CELL_TEMP_INVALID	Cell temp invalid.

Definition at line 95 of file lc709203f.h.

◆ lc709203f_battery_profile_t

enum lc709203f_battery_profile_t

Battery Profile Options.

For more details please see the datasheet (http://www.onsemi.com/pub/Collateral/LC709203F-D.PDF)

Definition at line 49 of file lc709203f.h.

◆ lc709203f_current_direction_t

enum lc709203f_current_direction_t

Current direction modes.

For more details please see the datasheet (http://www.onsemi.com/pub/Collateral/LC709203F-D.PDF)

Definition at line 37 of file lc709203f.h.

◆ lc709203f_power_mode_t

enum lc709203f_power_mode_t

Power mode choices.

For more details please see the datasheet (http://www.onsemi.com/pub/Collateral/LC709203F-D.PDF)

Definition at line 60 of file lc709203f.h.

◆ lc709203f_temp_obtaining_mode_t

enum lc709203f_temp_obtaining_mode_t

Temperature obtaining mode options.

For more details please see the datasheet (http://www.onsemi.com/pub/Collateral/LC709203F-D.PDF)

Definition at line 71 of file lc709203f.h.

Function Documentation

◆ lc709203f_get_alarm_low_rsoc()

int16_t lc709203f_get_alarm_low_rsoc ( const lc709203f_t * dev )

reads Alarm Low RSOC Register

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: 0 Disable; Threshold value in %

◆ lc709203f_get_alarm_low_voltage()

int16_t lc709203f_get_alarm_low_voltage ( const lc709203f_t * dev )

reads Alarm Low Cell Voltage Register

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: 0 Disable; Threshold value in 1mV steps

◆ lc709203f_get_apa()

int16_t lc709203f_get_apa ( const lc709203f_t * dev )

reads APA (Adjustment Pack Application) in 1mOhm steps value to adjust temperature measurement delay timing.

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: parasitic impedance

◆ lc709203f_get_apt()

int16_t lc709203f_get_apt ( const lc709203f_t * dev )

reads APT (Adjustment Pack Thermistor) value to adjust temperature measurement delay timing.

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: value to adjust temperature measurement delay timing.

◆ lc709203f_get_cell_temp()

int16_t lc709203f_get_cell_temp ( const lc709203f_t * dev )

reads cell temperature from sensor

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: temp in 0.1°C steps

◆ lc709203f_get_change_of_parameter()

int16_t lc709203f_get_change_of_parameter ( const lc709203f_t * dev )

reads Change of the Parameter register, Battery Profile selection

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: Battery profile number (1 or 0)

◆ lc709203f_get_current_direction()

lc709203f_current_direction_t lc709203f_get_current_direction ( const lc709203f_t * dev )

reads Current Direction Register

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: AUTO_MODE Auto mode; CHARGE_MODE charge mode; DISCHARGE_MODE Discharge mode

◆ lc709203f_get_id()

int16_t lc709203f_get_id ( const lc709203f_t * dev )

reads Sensor id

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: id value

◆ lc709203f_get_ite()

int16_t lc709203f_get_ite ( const lc709203f_t * dev )

reads battery indicator to empty from Sensor

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: ite in 0.1%

◆ lc709203f_get_power_mode()

lc709203f_power_mode_t lc709203f_get_power_mode ( const lc709203f_t * dev )

reads IC Power Mode register

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: OPERATIONAL_MODE Operational Mode; SLEEP_MODE Sleep mode

◆ lc709203f_get_rsoc()

int16_t lc709203f_get_rsoc ( const lc709203f_t * dev )

reads battery state of charge from Sensor

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: rsoc in %

◆ lc709203f_get_status_bit()

lc709203f_temp_obtaining_mode_t lc709203f_get_status_bit ( const lc709203f_t * dev )

reads status bit register (Temperature obtaining mode)

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: THERMISTOR_MODE Thermistor mode; I2C_MODE I2C Mode

◆ lc709203f_get_thermistor_b()

int16_t lc709203f_get_thermistor_b ( const lc709203f_t * dev )

reads Thermistor-B register (Thermistor B constant to be measured)

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: B Value in 1K steps

◆ lc709203f_get_voltage()

int16_t lc709203f_get_voltage ( const lc709203f_t * dev )

reads battery voltage from Sensor

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

Returns: voltage in mV

◆ lc709203f_init()

int lc709203f_init	(	lc709203f_t *	dev,
		const lc709203f_params_t *	params
	)

initializes the sensor and i2c

Parameters

[in]	*dev	pointer to lc709203f_t struct containing the i2c device and the address
[in]	*params	pointer to lc709203f_param_t struct containing the interrupt pin and callback

Returns: LC709203F_OK on a working initialization; LC709203F_NOI2C on undefined i2c device given in periph_conf

◆ lc709203f_set_alarm_low_cell_voltage()

void lc709203f_set_alarm_low_cell_voltage	(	const lc709203f_t *	dev,
		const unsigned int	value
	)

Sets threshold for low cell voltage alert.

Parameters

[in]	*dev	pointer to lc709203f_t struct containing the i2c device and the address
[in]	value	alert threshold in 1mV steps

◆ lc709203f_set_alarm_low_rsoc()

void lc709203f_set_alarm_low_rsoc	(	const lc709203f_t *	dev,
		const uint8_t	value
	)

Sets threshold for low rsoc alert.

Parameters

[in]	*dev	pointer to lc709203f_t struct containing the i2c device and the address
[in]	value	alert threshold (0-100%)

◆ lc709203f_set_apa()

void lc709203f_set_apa	(	const lc709203f_t *	dev,
		const uint8_t	value
	)

Sets parasitic impedance (adjustment pack application)

Parameters

[in]	*dev	pointer to lc709203f_t struct containing the i2c device and the address
[in]	value	impedance in 1mOhm steps

◆ lc709203f_set_apt()

void lc709203f_set_apt	(	const lc709203f_t *	dev,
		const unsigned int	value
	)

Sets value to adjust temperature measurement delay timing (adjusmtent pack thermistor)

Parameters

[in]	*dev	pointer to lc709203f_t struct containing the i2c device and the address
[in]	value	adjustment value

◆ lc709203f_set_cell_temp()

int8_t lc709203f_set_cell_temp	(	const lc709203f_t *	dev,
		const unsigned int	value
	)

Sets cell temperature in I2C-mode.

Parameters

[in]	*dev	pointer to lc709203f_t struct containing the i2c device and the address
[in]	value	temp in 0.1K 0xAAC=0°C

Returns: LC709203F_CELL_TEMP_INVALID Invalid cell temp

◆ lc709203f_set_change_of_parameter()

void lc709203f_set_change_of_parameter	(	const lc709203f_t *	dev,
		const lc709203f_battery_profile_t	value
	)

Sets battery profile.

Parameters

[in]	*dev	pointer to lc709203f_t struct containing the i2c device and the address
[in]	value	profile (enum) BAT_PROFILE_1 BAT_PROFILE_2

◆ lc709203f_set_current_direction()

void lc709203f_set_current_direction	(	const lc709203f_t *	dev,
		const lc709203f_current_direction_t	direction
	)

Sets current direction.

Parameters

[in]	*dev	pointer to lc709203f_t struct containing the i2c device and the address
[in]	direction	current direction, AUTO_MODE, CHARGE_MODE, DISCHARGE_MODE

◆ lc709203f_set_power_mode()

void lc709203f_set_power_mode	(	const lc709203f_t *	dev,
		const lc709203f_power_mode_t	value
	)

Sets power mode.

Parameters

[in]	*dev	pointer to lc709203f_t struct containing the i2c device and the address
[in]	value	Power mode (enum) OPERATIONAL_MODE, SLEEP_MODE

◆ lc709203f_set_rsoc_before()

void lc709203f_set_rsoc_before ( const lc709203f_t * dev )

Executes RSOC initialization with sampled maximum voltage.

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

◆ lc709203f_set_rsoc_initial()

void lc709203f_set_rsoc_initial ( const lc709203f_t * dev )

Executes RSOC initialization.

Parameters

[in] *dev pointer to lc709203f_t struct containing the i2c device and the address

◆ lc709203f_set_status_bit()

void lc709203f_set_status_bit	(	const lc709203f_t *	dev,
		const lc709203f_temp_obtaining_mode_t	value
	)

Sets temperature obtaining method.

Parameters

[in]	*dev	pointer to lc709203f_t struct containing the i2c device and the address
[in]	value	method to be used (enum) I2C_MODE, THERMISTOR_MODE

◆ lc709203f_set_thermistor_b()

void lc709203f_set_thermistor_b	(	const lc709203f_t *	dev,
		const unsigned int	value
	)

Sets B constant of the Thermistor.

Parameters

[in]	*dev	pointer to lc709203f_t struct containing the i2c device and the address
[in]	value	Bconstant of thermistor

Detailed Description

Files

Data Structures

Macros

Typedefs

Enumerations

Functions

Macro Definition Documentation

◆ LC709203F_REG_CELL_VOLTAGE

Typedef Documentation

◆ lc709203f_cb_t

Enumeration Type Documentation

◆ anonymous enum

◆ lc709203f_battery_profile_t

◆ lc709203f_current_direction_t

◆ lc709203f_power_mode_t

◆ lc709203f_temp_obtaining_mode_t

Function Documentation

◆ lc709203f_get_alarm_low_rsoc()

◆ lc709203f_get_alarm_low_voltage()

◆ lc709203f_get_apa()

◆ lc709203f_get_apt()

◆ lc709203f_get_cell_temp()

◆ lc709203f_get_change_of_parameter()

◆ lc709203f_get_current_direction()

◆ lc709203f_get_id()

◆ lc709203f_get_ite()

◆ lc709203f_get_power_mode()

◆ lc709203f_get_rsoc()

◆ lc709203f_get_status_bit()

◆ lc709203f_get_thermistor_b()

◆ lc709203f_get_voltage()

◆ lc709203f_init()

◆ lc709203f_set_alarm_low_cell_voltage()

◆ lc709203f_set_alarm_low_rsoc()

◆ lc709203f_set_apa()

◆ lc709203f_set_apt()

◆ lc709203f_set_cell_temp()

◆ lc709203f_set_change_of_parameter()

◆ lc709203f_set_current_direction()

◆ lc709203f_set_power_mode()

◆ lc709203f_set_rsoc_before()

◆ lc709203f_set_rsoc_initial()

◆ lc709203f_set_status_bit()

◆ lc709203f_set_thermistor_b()