Si7013Kit Drivers
Macros | |
#define | SI7013_ADDR 0x82 |
#define | SI7013_DEVICE_ID 0x0D |
#define | SI7020_DEVICE_ID 0x14 |
#define | SI7021_ADDR 0x80 |
#define | SI7021_DEVICE_ID 0x21 |
Functions | |
bool | Si7013_Detect (I2C_TypeDef *i2c, uint8_t addr, uint8_t *deviceId) |
Checks if a Si7013 is present on the I2C bus or not. | |
int32_t | Si7013_GetFirmwareRevision (I2C_TypeDef *i2c, uint8_t addr, uint8_t *fwRev) |
Reads Firmware Revision from a Si7013 sensor. | |
int32_t | Si7013_MeasureRHAndTemp (I2C_TypeDef *i2c, uint8_t addr, uint32_t *rhData, int32_t *tData) |
Reads relative humidity and temperature from a Si7013 sensor. | |
int32_t | Si7013_MeasureV (I2C_TypeDef *i2c, uint8_t addr, int32_t *vData) |
Reads relative humidity and temperature from a Si7013 sensor. | |
int32_t | Si7013_ReadNoHoldRHAndTemp (I2C_TypeDef *i2c, uint8_t addr, uint32_t *rhData, int32_t *tData) |
Reads relative humidity and temperature from a Si7013 sensor. | |
int32_t | Si7013_StartNoHoldMeasureRHAndTemp (I2C_TypeDef *i2c, uint8_t addr) |
Starts no hold measurement of relative humidity and temperature from a Si7013 sensor. | |
Macro Definition Documentation
#define SI7013_ADDR 0x82 |
I2C device address for Si7013
Definition at line 41
of file si7013.h
.
#define SI7013_DEVICE_ID 0x0D |
Device ID value for Si7013
Definition at line 46
of file si7013.h
.
#define SI7020_DEVICE_ID 0x14 |
Device ID value for Si7020
Definition at line 48
of file si7013.h
.
#define SI7021_ADDR 0x80 |
I2C device address for Si7021
Definition at line 43
of file si7013.h
.
#define SI7021_DEVICE_ID 0x21 |
Function Documentation
bool Si7013_Detect | ( | I2C_TypeDef * | i2c, |
uint8_t | addr, |
||
uint8_t * | deviceId |
||
) |
Checks if a Si7013 is present on the I2C bus or not.
- Parameters
-
[in] i2c
The I2C peripheral to use (Not used). [in] addr
The I2C address to probe. [out] deviceId
Write device ID from SNB_3 if device responds. Pass in NULL to discard. Should be 0x0D for Si7013, 0x14 for Si7020 or 0x15 for Si7021
- Returns
- True if a Si70xx is detected, false otherwise.
Definition at line 383
of file si7013.c
.
References I2C_TransferSeq_TypeDef::addr, I2C_TransferSeq_TypeDef::buf, I2C_TransferSeq_TypeDef::data, I2C_TransferSeq_TypeDef::flags, I2C_FLAG_WRITE_READ, I2CSPM_Transfer(), i2cTransferDone, and I2C_TransferSeq_TypeDef::len.
int32_t Si7013_GetFirmwareRevision | ( | I2C_TypeDef * | i2c, |
uint8_t | addr, |
||
uint8_t * | fwRev |
||
) |
Reads Firmware Revision from a Si7013 sensor.
- Parameters
-
[in] i2c
The I2C peripheral to use. [in] addr
The I2C address of the sensor. [out] fwRev
The internal firmware revision. 0xFF === 1.0
- Returns
- Returns zero on OK, non-zero otherwise.
Definition at line 153
of file si7013.c
.
References I2C_TransferSeq_TypeDef::addr, I2C_TransferSeq_TypeDef::buf, I2C_TransferSeq_TypeDef::data, I2C_TransferSeq_TypeDef::flags, I2C_FLAG_WRITE_READ, I2CSPM_Transfer(), i2cTransferDone, and I2C_TransferSeq_TypeDef::len.
int32_t Si7013_MeasureRHAndTemp | ( | I2C_TypeDef * | i2c, |
uint8_t | addr, |
||
uint32_t * | rhData, |
||
int32_t * | tData |
||
) |
Reads relative humidity and temperature from a Si7013 sensor.
- Parameters
-
[in] i2c
The I2C peripheral to use. [in] addr
The I2C address of the sensor. [out] rhData
The relative humidity in percent (multiplied by 1000). [out] tData
The temperature in milli-Celsius.
- Returns
- Returns zero on OK, non-zero otherwise.
Definition at line 292
of file si7013.c
.
int32_t Si7013_MeasureV | ( | I2C_TypeDef * | i2c, |
uint8_t | addr, |
||
int32_t * | vData |
||
) |
Reads relative humidity and temperature from a Si7013 sensor.
- Parameters
-
[in] i2c
The I2C peripheral to use. [in] addr
The I2C address of the sensor. [out] vData
The data read from the sensor.
- Returns
- Returns zero on OK, non-zero otherwise.
Definition at line 356
of file si7013.c
.
int32_t Si7013_ReadNoHoldRHAndTemp | ( | I2C_TypeDef * | i2c, |
uint8_t | addr, |
||
uint32_t * | rhData, |
||
int32_t * | tData |
||
) |
Reads relative humidity and temperature from a Si7013 sensor.
- Parameters
-
[in] i2c
The I2C peripheral to use. [in] addr
The I2C address of the sensor. [out] rhData
The relative humidity in percent (multiplied by 1000). [out] tData
The temperature in milli-Celsius.
- Returns
- Returns zero on OK, non-zero otherwise.
Definition at line 255
of file si7013.c
.
int32_t Si7013_StartNoHoldMeasureRHAndTemp | ( | I2C_TypeDef * | i2c, |
uint8_t | addr |
||
) |
Starts no hold measurement of relative humidity and temperature from a Si7013 sensor.
- Parameters
-
[in] i2c
The I2C peripheral to use. [in] addr
The I2C address of the sensor.
- Returns
- Returns zero on OK, non-zero otherwise.
Definition at line 192
of file si7013.c
.