2.6 I2C Temp Sensor MCP98xx Driver

• struct MCP9808

  An instance of MCP98XX_INTERFACE_t for the MCP98xx driver.

• struct MCP9808_INITIAL_CONFIG

  An instance of MCP98XX_DEVICE_INIT for the MCP98xx driver.

• enum _MCP9808_DEVICE_INFORMATION_t { MANUFACTURER_ID = 1U, DEVICE_ID = 2U, DEVICE_REVISION = 3U }

  Enumeration of the MCP9808 device information.

• MCP9808_STATUS_t MCP9808_Initialize (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_DEVICE_INIT_t deviceInit)

  Initializes the MCP9808 Temperature Sensor driver.

• MCP9808_STATUS_t MCP9808_SensorConfigSet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_CONFIG_REG_t sensorConfigReg)

  Sets the configuration of the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_SensorConfigGet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_CONFIG_REG_PTR sensorConfigVal)

  Gets the configuration of the MCP9808 Temperature Sensor and updates the structure containing the Sensor Configuration register settings.

• MCP9808_STATUS_t MCP9808_TemperatureHysteresisSet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_HYSTERESIS_VALUE_t tempHysteresisVal)

  Sets the Temperature Hysteresis of the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_ShutdownModeEnable (MCP9808_DEVICE_CONTEXT_PTR devicePtr)

  Enables the Shutdown mode feature of the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_ShutdownModeDisable (MCP9808_DEVICE_CONTEXT_PTR devicePtr)

  Disables the Shutdown mode feature of the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_TemperatureCriticalLockEnable (MCP9808_DEVICE_CONTEXT_PTR devicePtr)

  Enables the Critical Lock bit of the Sensor Configuration register of the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_TemperatureWindowLockEnable (MCP9808_DEVICE_CONTEXT_PTR devicePtr)

  Enables the Window Lock bit of the Sensor Configuration register of the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_AlertOutputClear (MCP9808_DEVICE_CONTEXT_PTR devicePtr)

  Clears the Alert output interrupt of the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_AlertOutputStatusRead (MCP9808_DEVICE_CONTEXT_PTR devicePtr, bool *alertStat)

  Reads the Alert output status from the Sensor Configuration register of the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_AlertConfigurationSet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_ALERT_CONFIG_t alertConfig, uint8_t alertSet)

  Sets the Alert configuration of the Sensor Configuration register of the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_TemperatureBoundarySet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_TEMP_BOUNDARY_t boundary, float tempVal)

  Sets the user-specified temperature boundary for the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_TemperatureBoundaryGet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_TEMP_BOUNDARY_t boundary, float *tempVal)

  Gets the temperature boundary value from the Temperature Boundary registers of the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_TemperatureRawValueRead (MCP9808_DEVICE_CONTEXT_PTR devicePtr, uint16_t *tempRawVal)

  Reads the temperature sensor value from the Ambient Temperature register of the MCP9808 Temperature Sensor.

• float MCP9808_TemperatureRawToCelsius (uint16_t rawVal)

  Converts the temperature raw value to Celsius.

• float MCP9808_TemperatureRawToFahrenheit (uint16_t rawVal)

  Converts the temperature raw value to Fahrenheit.

• MCP9808_STATUS_t MCP9808_AmbientTemperatureCelsiusRead (MCP9808_DEVICE_CONTEXT_PTR devicePtr, float *ambientTemp)

  Reads the temperature sensor value in Celsius from the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_AmbientTemperatureFahrenheitRead (MCP9808_DEVICE_CONTEXT_PTR devicePtr, float *ambientTemp)

  Reads the temperature sensor value in Fahrenheit from the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_TempResolutionSet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_RESOLUTION_VALUE_t tempResolution)

  Sets the temperature conversion resolution of the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_TempResolutionGet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, uint8_t *tempResolutionVal)

  Gets the temperature conversion resolution of the MCP9808 Temperature Sensor.

• MCP9808_STATUS_t MCP9808_DeviceInfoGet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_DEVICE_INFORMATION_t deviceInfo, uint16_t *deviceInfoVal)

  Sets the temperature conversion resolution of the MCP9808 Temperature Sensor.

• float MCP9808_CelsiusToFahrenheit (float tempVal)

  Converts the temperature value from Celsius to Fahrenheit.

• float MCP9808_FahrenheitToCelsius (float tempVal)

  Converts the temperature value from Fahrenheit to Celsius.

• int16_t MCP9808_TemperatureCelsiusToRawValue (float tempVal)

  Converts the temperature value from Celsius to raw value.

• void MCP9808_SensorConfigBufferSet (MCP9808_DEVICE_CONTEXT_PTR devicePtr)

  Performs byte arrangements for the Sensor Configuration register of the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_AlertConfigurationSet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_ALERT_CONFIG_t alertConfig, uint8_t alertSet)

Sets the Alert configuration of the Sensor Configuration register of the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_AlertOutputClear (MCP9808_DEVICE_CONTEXT_PTR devicePtr)

Clears the Alert output interrupt of the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_AlertOutputStatusRead (MCP9808_DEVICE_CONTEXT_PTR devicePtr, bool * alertStat)

Reads the Alert output status from the Sensor Configuration register of the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_AmbientTemperatureCelsiusRead (MCP9808_DEVICE_CONTEXT_PTR devicePtr, float * ambientTemp)

Reads the temperature sensor value in Celsius from the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_AmbientTemperatureFahrenheitRead (MCP9808_DEVICE_CONTEXT_PTR devicePtr, float * ambientTemp)

Reads the temperature sensor value in Fahrenheit from the MCP9808 Temperature Sensor.

float MCP9808_CelsiusToFahrenheit (float tempVal)

Converts the temperature value from Celsius to Fahrenheit.

MCP9808_STATUS_t MCP9808_DeviceInfoGet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_DEVICE_INFORMATION_t deviceInfo, uint16_t * deviceInfoVal)

Sets the temperature conversion resolution of the MCP9808 Temperature Sensor.

float MCP9808_FahrenheitToCelsius (float tempVal)

Converts the temperature value from Fahrenheit to Celsius.

MCP9808_STATUS_t MCP9808_Initialize (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_DEVICE_INIT_t deviceInit)

Initializes the MCP9808 Temperature Sensor driver.

void MCP9808_SensorConfigBufferSet (MCP9808_DEVICE_CONTEXT_PTR devicePtr)

Performs byte arrangements for the Sensor Configuration register of the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_SensorConfigGet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_CONFIG_REG_PTR sensorConfigVal)

Gets the configuration of the MCP9808 Temperature Sensor and updates the structure containing the Sensor Configuration register settings.

MCP9808_STATUS_t MCP9808_SensorConfigSet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_CONFIG_REG_t sensorConfigReg)

Sets the configuration of the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_ShutdownModeDisable (MCP9808_DEVICE_CONTEXT_PTR devicePtr)

Disables the Shutdown mode feature of the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_ShutdownModeEnable (MCP9808_DEVICE_CONTEXT_PTR devicePtr)

Enables the Shutdown mode feature of the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_TemperatureBoundaryGet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_TEMP_BOUNDARY_t boundary, float * tempVal)

Gets the temperature boundary value from the Temperature Boundary registers of the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_TemperatureBoundarySet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_TEMP_BOUNDARY_t boundary, float tempVal)

Sets the user-specified temperature boundary for the MCP9808 Temperature Sensor.

int16_t MCP9808_TemperatureCelsiusToRawValue (float tempVal)

Converts the temperature value from Celsius to raw value.

MCP9808_STATUS_t MCP9808_TemperatureCriticalLockEnable (MCP9808_DEVICE_CONTEXT_PTR devicePtr)

Enables the Critical Lock bit of the Sensor Configuration register of the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_TemperatureHysteresisSet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_HYSTERESIS_VALUE_t tempHysteresisVal)

Sets the Temperature Hysteresis of the MCP9808 Temperature Sensor.

float MCP9808_TemperatureRawToCelsius (uint16_t rawVal)

Converts the temperature raw value to Celsius.

float MCP9808_TemperatureRawToFahrenheit (uint16_t rawVal)

Converts the temperature raw value to Fahrenheit.

MCP9808_STATUS_t MCP9808_TemperatureRawValueRead (MCP9808_DEVICE_CONTEXT_PTR devicePtr, uint16_t * tempRawVal)

Reads the temperature sensor value from the Ambient Temperature register of the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_TemperatureWindowLockEnable (MCP9808_DEVICE_CONTEXT_PTR devicePtr)

Enables the Window Lock bit of the Sensor Configuration register of the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_TempResolutionGet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, uint8_t * tempResolutionVal)

Gets the temperature conversion resolution of the MCP9808 Temperature Sensor.

MCP9808_STATUS_t MCP9808_TempResolutionSet (MCP9808_DEVICE_CONTEXT_PTR devicePtr, MCP9808_RESOLUTION_VALUE_t tempResolution)

Sets the temperature conversion resolution of the MCP9808 Temperature Sensor.

enum _MCP9808_DEVICE_INFORMATION_t

Enumeration of the MCP9808 device information.

• uint8_t MCP9808_Write (uint16_t address, uint8_t *data, size_t dataLength)

  Writes data to the MCP9808 Temperature Sensor using the I2C protocol.

• uint8_t MCP9808_Read (uint16_t address, uint8_t *registerAddress, size_t addressLength, uint8_t *readData, size_t readLength)

  Writes the register address pointer from the registerAddress to the bus and reads data from the MCP9808 Temperature Sensor using the I2C protocol, and then stores the received data in the readData.

uint8_t MCP9808_Read (uint16_t address, uint8_t * registerAddress, size_t addressLength, uint8_t * readData, size_t readLength)

Writes the register address pointer from the registerAddress to the bus and reads data from the MCP9808 Temperature Sensor using the I2C protocol, and then stores the received data in the readData.

uint8_t MCP9808_Write (uint16_t address, uint8_t * data, size_t dataLength)

Writes data to the MCP9808 Temperature Sensor using the I2C protocol.

• struct MCP98XX_INTERFACE_t

  Structure containing the function pointers to the MCP98xx driver APIs.

• struct MCP98XX_DEVICE_INIT

  Structure containing the MCP98xx driver registers to be initialized.

• struct MCP98XX_DEVICE_INFO

  Structure containing the MCP98xx driver information.

• struct MCP98XX_SENSOR_CONFIG_REG

  Structure containing the MCP98xx driver Sensor Configuration bit register settings.

• struct MCP98XX_DEVICE_CONTEXT

  Structure containing the MCP98xx driver context that can be used in the processes.

• enum MCP98XX_STATUS { MCP98XX_NO_ERROR = 0U, MCP98XX_ERROR = 1U, MCP98XX_COMMUNICATION_ERROR = 16U, MCP98XX_INVALID_DEVICE_INFO = 100U, MCP98XX_INVALID_RESOLUTION_VALUE = 101U, MCP98XX_INVALID_TEMP_VALUE = 102U, MCP98XX_INVALID_ALERT_CONFIG = 103U, MCP98XX_INVALID_PARAMETER = 104U, MCP98XX_NULL_POINTER = 105U, MCP98XX_NOT_ASSERTED = 10U, MCP98XX_LOWER_TEMP_ASSERTED = 2U, MCP98XX_UPPER_TEMP_ASSERTED = 4U, MCP98XX_CRIT_TEMP_ASSERTED = 8U }

  Enumeration of the MCP98xx driver status codes.

• enum MCP98XX_TEMP_BOUNDARY { LOWER_BOUNDARY = 1U, UPPER_BOUNDARY = 2U, CRITICAL_BOUNDARY = 3U }

  Enumeration of the user-configurable temperature boundaries that is used as a parameter for setting the boundaries.

• enum MCP98XX_ALERT_CONFIG { ALERT_OUTPUT_CLEAR = 1U, ALERT_CONTROL = 2U, ALERT_SELECT = 3U, ALERT_POLARITY = 4U, ALERT_MODE = 5U }

  Enumeration of the user-configurable Alert output setting that is used as a parameter for setting the Alert configuration.

• enum MCP98XX_HYSTERESIS_VALUE { HYSTERESIS_0, HYSTERESIS_1_5, HYSTERESIS_3, HYSTERESIS_6 }

  Enumeration of the possible Temperature Hysteresis values.

• enum MCP98XX_RESOLUTION_VALUE { RESOLUTION_0_5, RESOLUTION_0_25, RESOLUTION_0_125, RESOLUTION_0_0625 }

  Enumeration of the possible Temperature Resolution values.

enum MCP98XX_ALERT_CONFIG

Enumeration of the user-configurable Alert output setting that is used as a parameter for setting the Alert configuration.

enum MCP98XX_HYSTERESIS_VALUE

Enumeration of the possible Temperature Hysteresis values.

enum MCP98XX_RESOLUTION_VALUE

Enumeration of the possible Temperature Resolution values.

enum MCP98XX_STATUS

Enumeration of the MCP98xx driver status codes.

enum MCP98XX_TEMP_BOUNDARY

Enumeration of the user-configurable temperature boundaries that is used as a parameter for setting the boundaries.

• uint16_t i2cAddress

• MCP98XX_DEVICE_INFO_t deviceInfo

• MCP98XX_CONFIG_REG_t sensorConfigReg

• float tempUpperLimit

• float tempLowerLimit

• float tempCritLimit

• uint8_t rxBuffer [2]

• uint8_t tempResolution

• uint8_t txBuffer [3]

MCP98XX_DEVICE_INFO_t MCP98XX_DEVICE_CONTEXT::deviceInfo

uint16_t MCP98XX_DEVICE_CONTEXT::i2cAddress

uint8_t MCP98XX_DEVICE_CONTEXT::rxBuffer[2]

MCP98XX_CONFIG_REG_t MCP98XX_DEVICE_CONTEXT::sensorConfigReg

float MCP98XX_DEVICE_CONTEXT::tempCritLimit

float MCP98XX_DEVICE_CONTEXT::tempLowerLimit

uint8_t MCP98XX_DEVICE_CONTEXT::tempResolution

float MCP98XX_DEVICE_CONTEXT::tempUpperLimit

uint8_t MCP98XX_DEVICE_CONTEXT::txBuffer[3]

• uint16_t manufacturerId

• uint8_t deviceId

• uint8_t deviceRevision

uint8_t MCP98XX_DEVICE_INFO::deviceId

uint8_t MCP98XX_DEVICE_INFO::deviceRevision

uint16_t MCP98XX_DEVICE_INFO::manufacturerId

• uint16_t i2cAddress

• bool shutdownMode

• uint8_t tempResolution

• uint8_t tempHysteresis

• float tempUpperBoundary

• float tempLowerBoundary

• float tempCritBoundary

• bool critLock

• bool winLock

• bool alertClear

• bool alertControl

• bool alertSelect

• bool alertMode

• bool alertPolarity

bool MCP98XX_DEVICE_INIT::alertClear

bool MCP98XX_DEVICE_INIT::alertControl

bool MCP98XX_DEVICE_INIT::alertMode

bool MCP98XX_DEVICE_INIT::alertPolarity

bool MCP98XX_DEVICE_INIT::alertSelect

bool MCP98XX_DEVICE_INIT::critLock

uint16_t MCP98XX_DEVICE_INIT::i2cAddress

bool MCP98XX_DEVICE_INIT::shutdownMode

float MCP98XX_DEVICE_INIT::tempCritBoundary

uint8_t MCP98XX_DEVICE_INIT::tempHysteresis

float MCP98XX_DEVICE_INIT::tempLowerBoundary

uint8_t MCP98XX_DEVICE_INIT::tempResolution

float MCP98XX_DEVICE_INIT::tempUpperBoundary

bool MCP98XX_DEVICE_INIT::winLock

• MCP98XX_STATUS_t(* Initialize )(MCP98XX_DEVICE_CONTEXT_PTR devicePtr, MCP98XX_DEVICE_INIT_t deviceInit)

• MCP98XX_STATUS_t(* TempRead )(MCP98XX_DEVICE_CONTEXT_PTR devicePtr, uint16_t *tempRawVal)

MCP98XX_STATUS_t(* MCP98XX_INTERFACE_t::Initialize) (MCP98XX_DEVICE_CONTEXT_PTR devicePtr, MCP98XX_DEVICE_INIT_t deviceInit)

This is a pointer to the driver initializer function.

MCP98XX_STATUS_t(* MCP98XX_INTERFACE_t::TempRead) (MCP98XX_DEVICE_CONTEXT_PTR devicePtr, uint16_t *tempRawVal)

This is a pointer to the function that reads the Ambient Temperature data.

• uint8_t tempHysteresis

• bool shutdownMode

• bool critLock

• bool winLock

• bool alertClear

• bool alertStat

• bool alertControl

• bool alertSelect

• bool alertPolarity

• bool alertMode

bool MCP98XX_SENSOR_CONFIG_REG::alertClear

bool MCP98XX_SENSOR_CONFIG_REG::alertControl

bool MCP98XX_SENSOR_CONFIG_REG::alertMode

bool MCP98XX_SENSOR_CONFIG_REG::alertPolarity

bool MCP98XX_SENSOR_CONFIG_REG::alertSelect

bool MCP98XX_SENSOR_CONFIG_REG::alertStat

bool MCP98XX_SENSOR_CONFIG_REG::critLock

bool MCP98XX_SENSOR_CONFIG_REG::shutdownMode

uint8_t MCP98XX_SENSOR_CONFIG_REG::tempHysteresis

bool MCP98XX_SENSOR_CONFIG_REG::winLock

Macros that are used to redefine the driver types:

• #define MCP9808_DEVICE_INIT_t MCP98XX_DEVICE_INIT_t

• #define MCP9808_DEVICE_CONTEXT_t MCP98XX_DEVICE_CONTEXT_t

• #define MCP9808_DEVICE_CONTEXT_PTR MCP98XX_DEVICE_CONTEXT_PTR

• #define MCP9808_CONFIG_REG_t MCP98XX_CONFIG_REG_t

• #define MCP9808_CONFIG_REG_PTR MCP98XX_CONFIG_REG_PTR

• #define MCP9808_DEVICE_INFO_t MCP98XX_DEVICE_INFO_t

• #define MCP9808_TEMP_BOUNDARY_t MCP98XX_TEMP_BOUNDARY_t

• #define MCP9808_ALERT_CONFIG_t MCP98XX_ALERT_CONFIG_t

• #define MCP9808_HYSTERESIS_VALUE_t MCP98XX_HYSTERESIS_VALUE_t

• #define MCP9808_RESOLUTION_VALUE_t MCP98XX_RESOLUTION_VALUE_t

• #define MCP9808_STATUS_t MCP98XX_STATUS_t

#define MCP9808_ALERT_CNTRL_INIT (0U)

#define MCP9808_ALERT_CONFIG_t MCP98XX_ALERT_CONFIG_t

#define MCP9808_ALERT_MOD_INIT (0U)

#define MCP9808_ALERT_POL_INIT (0U)

#define MCP9808_ALERT_SEL_INIT (0U)

#define MCP9808_CONFIG_REG_PTR MCP98XX_CONFIG_REG_PTR

#define MCP9808_CONFIG_REG_t MCP98XX_CONFIG_REG_t

#define MCP9808_CRIT_LOCK_INIT (0U)

#define MCP9808_CRITICAL_TEMP_BOUNDARY_INIT (0)

#define MCP9808_DEVICE_ADDRESS (0x18U)

#define MCP9808_DEVICE_CONTEXT_PTR MCP98XX_DEVICE_CONTEXT_PTR

#define MCP9808_DEVICE_CONTEXT_t MCP98XX_DEVICE_CONTEXT_t

#define MCP9808_DEVICE_INFO_t MCP98XX_DEVICE_INFO_t

#define MCP9808_DEVICE_INIT_t MCP98XX_DEVICE_INIT_t

#define MCP9808_HYSTERESIS_INIT HYSTERESIS_0

#define MCP9808_HYSTERESIS_VALUE_t MCP98XX_HYSTERESIS_VALUE_t

#define MCP9808_INT_CLEAR_INIT (1U)

#define MCP9808_LOWER_TEMP_BOUNDARY_INIT (0)

#define MCP9808_RESOLUTION_INIT RESOLUTION_0_0625

#define MCP9808_RESOLUTION_VALUE_t MCP98XX_RESOLUTION_VALUE_t

#define MCP9808_SHDN_MODE_INIT (0U)

#define MCP9808_STATUS_t MCP98XX_STATUS_t

#define MCP9808_TEMP_BOUNDARY_t MCP98XX_TEMP_BOUNDARY_t

#define MCP9808_UPPER_TEMP_BOUNDARY_INIT (0)

#define MCP9808_WIN_LOCK_INIT (0U)

typedef enum _MCP9808_DEVICE_INFORMATION_t MCP9808_DEVICE_INFORMATION_t

const MCP98XX_INTERFACE_t MCP9808

const MCP9808_DEVICE_INIT_t MCP9808_INITIAL_CONFIG

MCP9808 Register Address pointers:

• #define MCP9808_SENSOR_CONFIG_REG_PTR (0x01U)

• #define MCP9808_UPPER_BOUNDARY_REG_PTR (0x02U)

• #define MCP9808_LOWER_BOUNDARY_REG_PTR (0x03U)

• #define MCP9808_CRITICAL_BOUNDARY_REG_PTR (0x04U)

• #define MCP9808_AMBIENT_TEMP_REG_PTR (0x05U)

• #define MCP9808_MANUFACTURERID_REG_PTR (0x06U)

• #define MCP9808_DEVICE_ID_AND_REVISION_REG_PTR (0x07U)

• #define MCP9808_RESOLUTION_REG_PTR (0x08U)

#define MCP9808_ALERT_CNTRL_MASK (0x08U)

#define MCP9808_ALERT_CNTRL_POSITION (3U)

#define MCP9808_ALERT_MOD_MASK (0x01U)

#define MCP9808_ALERT_POL_MASK (0x02U)

#define MCP9808_ALERT_POL_POSITION (1U)

#define MCP9808_ALERT_SEL_MASK (0x04U)

#define MCP9808_ALERT_SEL_POSITION (2U)

#define MCP9808_ALERT_STAT_MASK (0x10U)

#define MCP9808_ALERT_STAT_POSITION (4U)

#define MCP9808_AMBIENT_TEMP_BIT_12 (0x1000U)

#define MCP9808_AMBIENT_TEMP_REG_PTR (0x05U)

#define MCP9808_BOUNDARY_MASK (0xE000U)

#define MCP9808_CRIT_LOCK_MASK (0x80U)

#define MCP9808_CRIT_LOCK_POSITION (7U)

#define MCP9808_CRIT_TEMP_VS_AMBIENT_TEMP (0x8000U)

#define MCP9808_CRITICAL_BOUNDARY_REG_PTR (0x04U)

#define MCP9808_DEVICE_ID_AND_REVISION_REG_PTR (0x07U)

#define MCP9808_ENABLE_BIT (1U)

#define MCP9808_INT_CLEAR_MASK (0x20U)

#define MCP9808_INT_CLEAR_POSITION (5U)

#define MCP9808_LOWER_BOUNDARY_REG_PTR (0x03U)

#define MCP9808_LOWER_TEMP_VS_AMBIENT_TEMP (0x2000U)

#define MCP9808_MANUFACTURERID_REG_PTR (0x06U)

#define MCP9808_REGISTER_ADDRESS_LENGTH (1U)

#define MCP9808_RESOLUTION_REG_PTR (0x08U)

#define MCP9808_SENSOR_CONFIG_REG_PTR (0x01U)

#define MCP9808_SHDN_MODE_MASK (0x01U)

#define MCP9808_SIGN_BIT_MASK (0x10U)

#define MCP9808_TEMP_HYSTERESIS_MASK (0x06U)

#define MCP9808_TEMP_HYSTERESIS_POSITION (1U)

#define MCP9808_UNUSED_BIT_MASK (0x1FFCU)

#define MCP9808_UPPER_BOUNDARY_REG_PTR (0x02U)

#define MCP9808_UPPER_TEMP_VS_AMBIENT_TEMP (0x4000U)

#define MCP9808_WIN_LOCK_MASK (0x40U)

#define MCP9808_WIN_LOCK_POSITION (6U)

Macros for the I2C status codes.

• #define MCP9808_I2C_NO_ERROR (0U)

• #define MCP9808_I2C_ERROR (1U)

• #define MCP9808_INVALID_I2C_PARAMETER (2U)

#define MCP9808_I2C_ERROR (1U)

#define MCP9808_I2C_NO_ERROR (0U)

#define MCP9808_INVALID_I2C_PARAMETER (2U)

typedef enum MCP98XX_ALERT_CONFIG MCP98XX_ALERT_CONFIG_t

typedef struct MCP98XX_SENSOR_CONFIG_REG * MCP98XX_CONFIG_REG_PTR

typedef struct MCP98XX_SENSOR_CONFIG_REG MCP98XX_CONFIG_REG_t

typedef struct MCP98XX_DEVICE_CONTEXT * MCP98XX_DEVICE_CONTEXT_PTR

typedef struct MCP98XX_DEVICE_CONTEXT MCP98XX_DEVICE_CONTEXT_t

typedef struct MCP98XX_DEVICE_INFO MCP98XX_DEVICE_INFO_t

typedef struct MCP98XX_DEVICE_INIT MCP98XX_DEVICE_INIT_t

typedef enum MCP98XX_HYSTERESIS_VALUE MCP98XX_HYSTERESIS_VALUE_t

typedef enum MCP98XX_RESOLUTION_VALUE MCP98XX_RESOLUTION_VALUE_t

typedef enum MCP98XX_STATUS MCP98XX_STATUS_t

typedef enum MCP98XX_TEMP_BOUNDARY MCP98XX_TEMP_BOUNDARY_t

const MCP98XX_INTERFACE_t MCP9808

Initial value:

= {
    .Initialize = MCP9808_Initialize,
    .TempRead = MCP9808_TemperatureRawValueRead,
}

const MCP9808_DEVICE_INIT_t MCP9808_INITIAL_CONFIG

Initial value:

= {
    .i2cAddress = MCP9808_DEVICE_ADDRESS,
    .tempResolution = MCP9808_RESOLUTION_INIT,
    .tempUpperBoundary = MCP9808_UPPER_TEMP_BOUNDARY_INIT,
    .tempLowerBoundary = MCP9808_LOWER_TEMP_BOUNDARY_INIT,
    .tempCritBoundary = MCP9808_CRITICAL_TEMP_BOUNDARY_INIT,
    .tempHysteresis = MCP9808_HYSTERESIS_INIT,
    .shutdownMode = MCP9808_SHDN_MODE_INIT,
    .critLock = MCP9808_CRIT_LOCK_INIT,
    .winLock = MCP9808_WIN_LOCK_INIT,
    .alertClear = MCP9808_INT_CLEAR_INIT,
    .alertControl = MCP9808_ALERT_CNTRL_INIT,
    .alertSelect = MCP9808_ALERT_SEL_INIT,
    .alertMode = MCP9808_ALERT_MOD_INIT,
    .alertPolarity = MCP9808_ALERT_POL_INIT,
}

const i2c_host_interface_t MCP9808_I2C_Host

Initial value:

= {
    .Write = TWI1_Write,
    .WriteRead = TWI1_WriteRead,
    .IsBusy = TWI1_IsBusy,
}