EFM32 Gecko Software Documentation
efm32g-doc-5.1.2
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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. More... | |
int32_t | Si7013_GetFirmwareRevision (I2C_TypeDef *i2c, uint8_t addr, uint8_t *fwRev) |
Reads Firmware Revision from a Si7013 sensor. More... | |
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. More... | |
int32_t | Si7013_MeasureV (I2C_TypeDef *i2c, uint8_t addr, int32_t *vData) |
Reads relative humidity and temperature from a Si7013 sensor. More... | |
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. More... | |
int32_t | Si7013_StartNoHoldMeasureRHAndTemp (I2C_TypeDef *i2c, uint8_t addr) |
Starts no hold measurement of relative humidity and temperature from a Si7013 sensor. More... | |
bool Si7013_Detect | ( | I2C_TypeDef * | i2c, |
uint8_t | addr, | ||
uint8_t * | deviceId | ||
) |
Checks if a Si7013 is present on the I2C bus or not.
[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 |
Definition at line 407 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.
[in] | i2c | The I2C peripheral to use. |
[in] | addr | The I2C address of the sensor. |
[out] | fwRev | The internal firmware revision. 0xFF === 1.0 |
Definition at line 157 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.
[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. |
int32_t Si7013_MeasureV | ( | I2C_TypeDef * | i2c, |
uint8_t | addr, | ||
int32_t * | vData | ||
) |
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.
[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. |
int32_t Si7013_StartNoHoldMeasureRHAndTemp | ( | I2C_TypeDef * | i2c, |
uint8_t | addr | ||
) |