u-blox / battery-charger-bq24295

This class provides APIs to all of the registers of the TI BQ24295 battery charger chip, as used on the u-blox C030 board. This class is not required to charge a battery connected to the C030 board, charging will begin automatically when a battery is connected. This class is only required if the user wishes to monitor the charger's state or change the charger's settings. The caller should instantiate an I2C interface and pass this to init(), which will initialise the chip and place it into its lowest power state. The chip may then be configured using the API calls. Once the chip is configured, battery charging can be enabled. If battery charging is disabled the chip will once more be put into its lowest power state.

Dependents:   example-battery-charger-bq24295 example-C030-out-of-box-demo example-C030-out-of-box-demo Amit

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BatteryChargerBq24295 Class Reference
Public Types | Public Member Functions | Protected Member Functions | Protected Attributes

BatteryChargerBq24295 Class Reference

BQ27441 battery charger driver. More...

#include <battery_charger_bq24295.h>

Public Types

enum  ChargerState
 

Charger state.

More...
enum  ChargerFault { , CHARGER_FAULT_INPUT_FAULT = 0x10, CHARGER_FAULT_THERMAL_SHUTDOWN = 0x20, CHARGER_FAULT_CHARGE_TIMER_EXPIRED = 0x30 }
 

Charger faults as a bitmap that matches the chip REG09 definitions.

More...

Public Member Functions

 BatteryChargerBq24295 (void)
 Constructor.
 ~BatteryChargerBq24295 (void)
 Destructor.
bool init (I2C *pI2c, uint8_t address=BATTERY_CHARGER_BQ24295_ADDRESS)
 Initialise the BQ24295 chip.
ChargerState getChargerState (void)
 Get the charger state.
bool isExternalPowerPresent (void)
 Get whether external power is present or not.
bool enableCharging (void)
 Enable charging.
bool disableCharging (void)
 Disable charging.
bool isChargingEnabled (void)
 Get the state of charging (enabled or disabled).
bool enableOtg (void)
 Enable OTG charging.
bool disableOtg (void)
 Disable OTG charging.
bool isOtgEnabled (void)
 Determine whether OTG charging is enabled or not.
bool setSystemVoltage (int32_t voltageMV)
 Set the system voltage (the voltage which the chip will attempt to maintain the system at).
bool getSystemVoltage (int32_t *pVoltageMV)
 Get the system voltage.
bool setFastChargingCurrentLimit (int32_t currentMA)
 Set the fast charging current limit.
bool getFastChargingCurrentLimit (int32_t *pCurrentMA)
 Get the fast charging current limit.
bool setFastChargingSafetyTimer (int32_t timerHours)
 Set the fast charging safety timer.
bool getFastChargingSafetyTimer (int32_t *pTimerHours)
 Get the fast charging safety timer value.
bool enableIcghIprechMargin (void)
 Set ICHG/IPRECH margin (see section 8.3.3.5 of the chip data sheet).
bool disableIcghIprechMargin (void)
 Clear the ICHG/IPRECH margin (see section 8.3.3.5 of the chip data sheet).
bool isIcghIprechMarginEnabled (void)
 Check if the ICHG/IPRECH margin is set (see section 8.3.3.5 of the chip data sheet).
bool setChargingTerminationCurrent (int32_t currentMA)
 Set the charging termination current.
bool getChargingTerminationCurrent (int32_t *pCurrentMA)
 Get the charging termination current.
bool enableChargingTermination (void)
 Enable charging termination.
bool disableChargingTermination (void)
 Disable charging termination.
bool isChargingTerminationEnabled (void)
 Get the state of charging termination (enabled or disabled).
bool setPrechargingCurrentLimit (int32_t currentMA)
 Set the pre-charging current limit.
bool getPrechargingCurrentLimit (int32_t *pCurrentMA)
 Get the pre-charging current limit.
bool setChargingVoltageLimit (int32_t voltageMV)
 Set the charging voltage limit.
bool getChargingVoltageLimit (int32_t *pVoltageMV)
 Get the charging voltage limit.
bool setFastChargingVoltageThreshold (int32_t voltageMV)
 Set the pre-charge to fast-charge voltage threshold.
bool getFastChargingVoltageThreshold (int32_t *pVoltageMV)
 Get the pre-charge to fast-charge voltage threshold.
bool setRechargingVoltageThreshold (int32_t voltageMV)
 Set the recharging voltage threshold.
bool getRechargingVoltageThreshold (int32_t *pVoltageMV)
 Get the recharging voltage threshold.
bool setBoostVoltage (int32_t voltageMV)
 Set the boost voltage.
bool getBoostVoltage (int32_t *pVoltageMV)
 Get the boost voltage.
bool setBoostUpperTemperatureLimit (int32_t temperatureC)
 Set the boost mode upper temperature limit.
bool getBoostUpperTemperatureLimit (int32_t *pTemperatureC)
 Get the boost mode upper temperature limit.
bool isBoostUpperTemperatureLimitEnabled (void)
 Check whether the boost mode upper temperature limit is enabled.
bool disableBoostUpperTemperatureLimit (void)
 Disable the boost mode upper temperature limit.
bool setBoostLowerTemperatureLimit (int32_t temperatureC)
 Set the boost mode low temperature limit.
bool getBoostLowerTemperatureLimit (int32_t *pTemperatureC)
 Get the boost mode low temperature limit.
bool setInputVoltageLimit (int32_t voltageMV)
 Set the input voltage limit.
bool getInputVoltageLimit (int32_t *pVoltageMV)
 Get the input voltage limit.
bool setInputCurrentLimit (int32_t currentMA)
 Set the input current limit.
bool getInputCurrentLimit (int32_t *pCurrentMA)
 Get the input current limit.
bool enableInputLimits (void)
 Enable input voltage and current limits.
bool disableInputLimits (void)
 Remove any input voltage or current limits.
bool areInputLimitsEnabled (void)
 Check whether input limits are enabled.
bool setChipThermalRegulationThreshold (int32_t temperatureC)
 Set the thermal regulation threshold for the chip.
bool getChipThermalRegulationThreshold (int32_t *pTemperatureC)
 Get the thermal regulation threshold for the chip.
char getChargerFaults (void)
 Get the charger faults.
bool feedWatchdog (void)
 Feed the watchdog timer.
bool getWatchdog (int32_t *pWatchdogS)
 Get the watchdog timer of the BQ24295 chip.
bool setWatchdog (int32_t watchdogS)
 Set the watchdog timer of the BQ24295 chip.
bool enableShippingMode (void)
 Enable shipping mode.
bool disableShippingMode (void)
 Disable shipping mode.
bool isShippingModeEnabled (void)
 Check whether shipping mode is enabled.
bool advancedGet (char address, char *pValue)
 Advanced function to read a register on the chip.
bool advancedSet (char address, char value)
 Advanced function to set a register on the chip.

Protected Member Functions

bool getRegister (char address, char *pValue)
 Read a register.
bool setRegister (char address, char value)
 Set a register.
bool setRegisterBits (char address, char mask)
 Set a mask of bits in a register.
bool clearRegisterBits (char address, char mask)
 Clear a mask of bits in a register.

Protected Attributes

I2C * gpI2c
 Pointer to the I2C interface.
uint8_t gAddress
 The address of the device.
bool gReady
 Flag to indicate device is ready.

Detailed Description

BQ27441 battery charger driver.

Definition at line 37 of file battery_charger_bq24295.h.

Member Enumeration Documentation

enum ChargerFault

Charger faults as a bitmap that matches the chip REG09 definitions.

Enumerator:
CHARGER_FAULT_INPUT_FAULT 

Note that the value of CHARGER_FAULT_CHARGE_TIMER_EXPIRED overlaps this, be careful when testing the bitmap.

CHARGER_FAULT_THERMAL_SHUTDOWN 

Note that the value of CHARGER_FAULT_CHARGE_TIMER_EXPIRED overlaps this, be careful when testing the bitmap.

CHARGER_FAULT_CHARGE_TIMER_EXPIRED 

This looks odd as it overlaps the two above but it matches the register meaning as defined by the chip.

Definition at line 52 of file battery_charger_bq24295.h.

enum ChargerState

Charger state.

Definition at line 40 of file battery_charger_bq24295.h.

Constructor & Destructor Documentation

BatteryChargerBq24295 ( void   )

Constructor.

Definition at line 126 of file bq24295.cpp.

~BatteryChargerBq24295 ( void   )

Destructor.

Definition at line 133 of file bq24295.cpp.

Member Function Documentation

bool advancedGet ( char  address,
char *  pValue 
)

Advanced function to read a register on the chip.

Parameters:
addressthe address to read from.
pValuea place to put the returned value.
Returns:
true if successful, otherwise false.

Definition at line 1843 of file bq24295.cpp.

bool advancedSet ( char  address,
char  value 
)

Advanced function to set a register on the chip.

Parameters:
addressthe address to write to.
valuethe value to write.
Returns:
true if successful, otherwise false.

Definition at line 1868 of file bq24295.cpp.

bool areInputLimitsEnabled ( void   )

Check whether input limits are enabled.

Returns:
true if input limits are enabled, otherwise false.

Definition at line 1543 of file bq24295.cpp.

bool clearRegisterBits ( char  address,
char  mask 
) [protected]

Clear a mask of bits in a register.

Note: gpI2c should be locked before this is called.

Parameters:
addressthe address to write to.
maskthe mask of bits to clear.
Returns:
true if successful, otherwise false.

Definition at line 106 of file bq24295.cpp.

bool disableBoostUpperTemperatureLimit ( void   )

Disable the boost mode upper temperature limit.

Default is disabled.

Returns:
true if successful, otherwise false.

Definition at line 1253 of file bq24295.cpp.

bool disableCharging ( void   )

Disable charging.

Default is disabled.

Returns:
true if successful, otherwise false.

Definition at line 286 of file bq24295.cpp.

bool disableChargingTermination ( void   )

Disable charging termination.

Default is enabled.

Returns:
true if successful, otherwise false.

Definition at line 783 of file bq24295.cpp.

bool disableIcghIprechMargin ( void   )

Clear the ICHG/IPRECH margin (see section 8.3.3.5 of the chip data sheet).

Default is disabled.

Returns:
true if successful, otherwise false.

Definition at line 560 of file bq24295.cpp.

bool disableInputLimits ( void   )

Remove any input voltage or current limits.

Default is disabled.

Returns:
true if successful, otherwise false.

Definition at line 1523 of file bq24295.cpp.

bool disableOtg ( void   )

Disable OTG charging.

Default is enabled.

Returns:
true if successful, otherwise false.

Definition at line 354 of file bq24295.cpp.

bool disableShippingMode ( void   )

Disable shipping mode.

In shipping mode the battery is disconnected from the system to avoid leakage. Default is disabled.

Returns:
true if successful, otherwise false.

Definition at line 1789 of file bq24295.cpp.

bool enableCharging ( void   )

Enable charging.

Default is disabled.

Returns:
true if successful, otherwise false.

Definition at line 266 of file bq24295.cpp.

bool enableChargingTermination ( void   )

Enable charging termination.

Default is enabled.

Returns:
true if successful, otherwise false.

Definition at line 763 of file bq24295.cpp.

bool enableIcghIprechMargin ( void   )

Set ICHG/IPRECH margin (see section 8.3.3.5 of the chip data sheet).

Default is disabled.

Returns:
true if successful, otherwise false.

Definition at line 540 of file bq24295.cpp.

bool enableInputLimits ( void   )

Enable input voltage and current limits.

Default is disabled.

Returns:
true if successful, otherwise false.

Definition at line 1503 of file bq24295.cpp.

bool enableOtg ( void   )

Enable OTG charging.

Default is enabled.

Returns:
true if successful, otherwise false.

Definition at line 334 of file bq24295.cpp.

bool enableShippingMode ( void   )

Enable shipping mode.

In shipping mode the battery is disconnected from the system to avoid leakage. Default is disabled.

Returns:
true if successful, otherwise false.

Definition at line 1766 of file bq24295.cpp.

bool feedWatchdog ( void   )

Feed the watchdog timer.

Use this if it is necessary to keep the BQ24295 chip in Host mode (see section 8.4.1 of the data sheet for details).

Returns:
true if successful, otherwise false.

Definition at line 1669 of file bq24295.cpp.

bool getBoostLowerTemperatureLimit ( int32_t *  pTemperatureC )

Get the boost mode low temperature limit.

Parameters:
pTemperatureCa place to put the temperature.
Returns:
true if successful, otherwise false.

Definition at line 1300 of file bq24295.cpp.

bool getBoostUpperTemperatureLimit ( int32_t *  pTemperatureC )

Get the boost mode upper temperature limit.

If the boost mode upper temperature limit is not enabled then pTemperatureC will remain untouched and false will be returned.

Parameters:
pTemperatureCa place to put the temperature.
Returns:
true if successful and a limit was set, otherwise false.

Definition at line 1185 of file bq24295.cpp.

bool getBoostVoltage ( int32_t *  pVoltageMV )

Get the boost voltage.

Parameters:
pVoltageMVa place to put the boost voltage, in milliVolts.
Returns:
true if successful, otherwise false.

Definition at line 1120 of file bq24295.cpp.

char getChargerFaults ( void   )

Get the charger faults.

Note: as with all the other API functions here, this should not be called from an interrupt function as the comms with the chip over I2C will take too long.

Returns:
a bit-map of that can be tested against ChargerFault.

Definition at line 1648 of file bq24295.cpp.

BatteryChargerBq24295::ChargerState getChargerState ( void   )

Get the charger state.

Note: on a u-blox C030 board with no battery connected this will report CHARGER_STATE_COMPLETE or CHARGER_STATE_FAST_CHARGE rather than CHARGER_STATE_NOT_CHARGING.

Returns:
the charge state.

Definition at line 170 of file bq24295.cpp.

bool getChargingTerminationCurrent ( int32_t *  pCurrentMA )

Get the charging termination current.

Parameters:
pCurrentMAa place to put the charging termination current.
Returns:
true if successful, otherwise false.

Definition at line 734 of file bq24295.cpp.

bool getChargingVoltageLimit ( int32_t *  pVoltageMV )

Get the charging voltage limit.

Parameters:
pVoltageMVa place to put the charging voltage limit, in milliVolts.
Returns:
true if successful, otherwise false.

Definition at line 933 of file bq24295.cpp.

bool getChipThermalRegulationThreshold ( int32_t *  pTemperatureC )

Get the thermal regulation threshold for the chip.

Parameters:
pTemperatureCa place to put the temperature.
Returns:
true if successful, otherwise false.

TREG is in bits 0 & 1 of the boost voltage/thermal regulation control register

Definition at line 1608 of file bq24295.cpp.

bool getFastChargingCurrentLimit ( int32_t *  pCurrentMA )

Get the fast charging current limit.

Parameters:
pCurrentMAa place to put the fast charging current limit.
Returns:
true if successful, otherwise false.

Definition at line 510 of file bq24295.cpp.

bool getFastChargingSafetyTimer ( int32_t *  pTimerHours )

Get the fast charging safety timer value.

Parameters:
pTimerHoursa place to put the charging safety timer value. Returned value is zero if the fast charging safety timer is disabled.
Returns:
true if charging termination is enabled, otherwise false.

Definition at line 653 of file bq24295.cpp.

bool getFastChargingVoltageThreshold ( int32_t *  pVoltageMV )

Get the pre-charge to fast-charge voltage threshold.

Parameters:
pVoltageMVa place to put the threshold, in milliVolts.
Returns:
true if successful, otherwise false.

Definition at line 989 of file bq24295.cpp.

bool getInputCurrentLimit ( int32_t *  pCurrentMA )

Get the input current limit.

Parameters:
pCurrentMAa place to put the input current limit.
Returns:
true if successful, otherwise false.

Definition at line 1449 of file bq24295.cpp.

bool getInputVoltageLimit ( int32_t *  pVoltageMV )

Get the input voltage limit.

Parameters:
pVoltageMVa place to put the input voltage limit.
Returns:
true if successful, otherwise false.

Definition at line 1368 of file bq24295.cpp.

bool getPrechargingCurrentLimit ( int32_t *  pCurrentMA )

Get the pre-charging current limit.

Parameters:
pCurrentMAa place to put the pre-charging current limit.
Returns:
true if successful, otherwise false.

Definition at line 867 of file bq24295.cpp.

bool getRechargingVoltageThreshold ( int32_t *  pVoltageMV )

Get the recharging voltage threshold.

Parameters:
pVoltageMVa place to put the charging voltage threshold, in milliVolts.
Returns:
true if successful, otherwise false.

Definition at line 1047 of file bq24295.cpp.

bool getRegister ( char  address,
char *  pValue 
) [protected]

Read a register.

Note: gpI2c should be locked before this is called.

Parameters:
addressthe address to read from.
pValuea place to put the returned value.
Returns:
true if successful, otherwise false.

Definition at line 45 of file bq24295.cpp.

bool getSystemVoltage ( int32_t *  pVoltageMV )

Get the system voltage.

Parameters:
pVoltageMVa place to put the system voltage limit.
Returns:
true if successful, otherwise false.

Definition at line 444 of file bq24295.cpp.

bool getWatchdog ( int32_t *  pWatchdogS )

Get the watchdog timer of the BQ24295 chip.

Parameters:
pWatchdogSa place to put the watchdog timer (in seconds).
Returns:
true if successful, otherwise false.

Definition at line 1690 of file bq24295.cpp.

bool init ( I2C *  pI2c,
uint8_t  address = BATTERY_CHARGER_BQ24295_ADDRESS 
)

Initialise the BQ24295 chip.

After initialisation the chip will be put into its lowest power state and should be configured if the default settings are not satisfactory. Note: the BQ24295 charging chip will automonously charge a LiPo cell that is connected to it, without host interaction. This class is only required where the configuration of the chip needs to be changed or the charger state is to be monitored.

Parameters:
pI2ca pointer to the I2C instance to use.
address7-bit I2C address of the battery charger chip.
Returns:
true if successful, otherwise false.

Definition at line 138 of file bq24295.cpp.

bool isBoostUpperTemperatureLimitEnabled ( void   )

Check whether the boost mode upper temperature limit is enabled.

Returns:
true if successful, otherwise false.

Definition at line 1225 of file bq24295.cpp.

bool isChargingEnabled ( void   )

Get the state of charging (enabled or disabled).

Returns:
true if charging is enabled, otherwise false.

Definition at line 306 of file bq24295.cpp.

bool isChargingTerminationEnabled ( void   )

Get the state of charging termination (enabled or disabled).

Returns:
true if charging termination is enabled, otherwise false.

Definition at line 803 of file bq24295.cpp.

bool isExternalPowerPresent ( void   )

Get whether external power is present or not.

Returns:
true if external power is present, otherwise false.

Definition at line 237 of file bq24295.cpp.

bool isIcghIprechMarginEnabled ( void   )

Check if the ICHG/IPRECH margin is set (see section 8.3.3.5 of the chip data sheet).

Returns:
true if the ICHG/IPRECH margin is enabled, otherwise false.

Definition at line 580 of file bq24295.cpp.

bool isOtgEnabled ( void   )

Determine whether OTG charging is enabled or not.

Returns:
true if OTG charging is enabled, otherwise false.

Definition at line 374 of file bq24295.cpp.

bool isShippingModeEnabled ( void   )

Check whether shipping mode is enabled.

Returns:
true if input limits are enabled, otherwise false.

Definition at line 1812 of file bq24295.cpp.

bool setBoostLowerTemperatureLimit ( int32_t  temperatureC )

Set the boost mode low temperature limit.

Parameters:
temperatureCthe temperature in C. Values will be translated to the nearest (higher) of -10 C and -20 C, default is -10 C.
Returns:
true if successful, otherwise false.

Definition at line 1274 of file bq24295.cpp.

bool setBoostUpperTemperatureLimit ( int32_t  temperatureC )

Set the boost mode upper temperature limit.

Parameters:
temperatureCthe temperature in C. Values will be translated to the nearest (lower) of 55 C, 60 C and 65 C (disabled by default).
Returns:
true if successful, otherwise false.

Definition at line 1150 of file bq24295.cpp.

bool setBoostVoltage ( int32_t  voltageMV )

Set the boost voltage.

Parameters:
voltageMVthe boost voltage, in milliVolts. Range is 4550 mV to 5510 mV, default is 5126 mV.
Returns:
true if successful, otherwise false.

Definition at line 1079 of file bq24295.cpp.

bool setChargingTerminationCurrent ( int32_t  currentMA )

Set the charging termination current.

Parameters:
currentMAthe charging termination current, in milliAmps. Range is 128 mA to 2048 mA, default is 256 mA.
Returns:
true if successful, otherwise false.

Definition at line 698 of file bq24295.cpp.

bool setChargingVoltageLimit ( int32_t  voltageMV )

Set the charging voltage limit.

Parameters:
voltageMVthe charging voltage limit, in milliVolts. Range is 3504 mV to 4400 mV, default is 4208 mV.
Returns:
true if successful, otherwise false.

Definition at line 897 of file bq24295.cpp.

bool setChipThermalRegulationThreshold ( int32_t  temperatureC )

Set the thermal regulation threshold for the chip.

Parameters:
temperatureCthe temperature in C. Values will be translated to the nearest (lower) of 60 C, 80 C, 100 C and 120 C, default 120 C.
Returns:
true if successful, otherwise false.

Definition at line 1571 of file bq24295.cpp.

bool setFastChargingCurrentLimit ( int32_t  currentMA )

Set the fast charging current limit.

Parameters:
currentMAthe fast charging current limit, in milliAmps. Range is 512 mA to 3008 mA, default 1024 mA.
Returns:
true if successful, otherwise false.

Definition at line 474 of file bq24295.cpp.

bool setFastChargingSafetyTimer ( int32_t  timerHours )

Set the fast charging safety timer.

Parameters:
timerHoursthe charging safety timer value. Use a value of 0 to indicate that the timer should be disabled. Timer values will be translated to the nearest (lower) value out of 5, 8, 12, and 20 hours, default 12 hours.
Returns:
true if successful, otherwise false.

Definition at line 608 of file bq24295.cpp.

bool setFastChargingVoltageThreshold ( int32_t  voltageMV )

Set the pre-charge to fast-charge voltage threshold.

Parameters:
voltageMVthe threshold, in milliVolts. Values will be translated to the nearest (highest) voltage out of 2800 mV and 3000 mV, default is 3000 mV.
Returns:
true if successful, otherwise false.

Definition at line 963 of file bq24295.cpp.

bool setInputCurrentLimit ( int32_t  currentMA )

Set the input current limit.

If the current drawn goes above this limit then charging will be ramped down. The limit does not take effect until enableInputLimits() is called (default setting is disabled).

Parameters:
currentMAthe input current limit, in milliAmps. Range is 100 mA to 3000 mA, default depends upon hardware configuration, see section 8.3.1.4.3 of the data sheet.
Returns:
true if successful, otherwise false.

Definition at line 1398 of file bq24295.cpp.

bool setInputVoltageLimit ( int32_t  voltageMV )

Set the input voltage limit.

If the input falls below this level then charging will be ramped down. The limit does not take effect until enableInputLimits() is called (default setting is disabled).

Parameters:
voltageMVthe input voltage limit, in milliVolts. Range is 3880 mV to 5080 mV, default is 4760 mV.
Returns:
true if successful, otherwise false.

Definition at line 1332 of file bq24295.cpp.

bool setPrechargingCurrentLimit ( int32_t  currentMA )

Set the pre-charging current limit.

Parameters:
currentMAthe pre-charging current limit, in milliAmps. Range is 128 mA to 2048 mA, default is 256 mA.
Returns:
true if successful, otherwise false.

Definition at line 831 of file bq24295.cpp.

bool setRechargingVoltageThreshold ( int32_t  voltageMV )

Set the recharging voltage threshold.

Parameters:
voltageMVthe recharging voltage threshold, in milliVolts. Values will be translated to the nearest (highest) voltage out of 100 mV and 300 mV, default is 100 mV.
Returns:
true if successful, otherwise false.

Definition at line 1021 of file bq24295.cpp.

bool setRegister ( char  address,
char  value 
) [protected]

Set a register.

Note: gpI2c should be locked before this is called.

Parameters:
addressthe address to write to.
valuethe value to write.
Returns:
true if successful, otherwise false.

Definition at line 70 of file bq24295.cpp.

bool setRegisterBits ( char  address,
char  mask 
) [protected]

Set a mask of bits in a register.

Note: gpI2c should be locked before this is called.

Parameters:
addressthe address to write to.
maskthe mask of bits to set.
Returns:
true if successful, otherwise false.

Definition at line 90 of file bq24295.cpp.

bool setSystemVoltage ( int32_t  voltageMV )

Set the system voltage (the voltage which the chip will attempt to maintain the system at).

Parameters:
voltageMVthe voltage limit, in milliVolts. Range is 3000 mV to 3700 mV, default 3500 mV.
Returns:
true if successful, otherwise false.

Definition at line 402 of file bq24295.cpp.

bool setWatchdog ( int32_t  watchdogS )

Set the watchdog timer of the BQ24295 chip.

Parameters:
watchdogSthe watchdog timer (in seconds), 0 to disable, max 160 seconds.
Returns:
true if successful, otherwise false.

Definition at line 1731 of file bq24295.cpp.

Field Documentation

uint8_t gAddress [protected]

The address of the device.

Definition at line 463 of file battery_charger_bq24295.h.

I2C* gpI2c [protected]

Pointer to the I2C interface.

Definition at line 461 of file battery_charger_bq24295.h.

bool gReady [protected]

Flag to indicate device is ready.

Definition at line 465 of file battery_charger_bq24295.h.

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