BAP - Barometric Pressure SensorBSP > Thunderboard Sense BSP
Detailed Description
Driver for the Bosch Sensortec BMP280 pressure sensor.
Data Structures | |
struct | __BAP_Config |
Structure to configure the BMP280 device. | |
Typedefs | |
typedef struct __BAP_Config | BAP_Config |
Structure to configure the BMP280 device. | |
Functions | |
uint32_t | BAP_config (BAP_Config *cfg) |
Configure the barometric pressure sensor. | |
void | BAP_deInit (void) |
De-initializes the barometric pressure module. | |
uint32_t | BAP_getPressure (float *pressure) |
Initiates pressure measurement on the barometric pressure sensor and reads pressure from it. | |
uint32_t | BAP_getTemperature (float *temperature) |
Initiates temperature measurement on the barometric pressure sensor and reads pressure from it. | |
uint32_t | BAP_init (uint8_t *deviceId) |
Initializes the barometric pressure sensor chip. | |
Error Codes | |
#define | BAP_OK 0x0000 |
#define | BAP_ERROR_DRIVER_NOT_INITIALIZED 0x0001 |
#define | BAP_ERROR_I2C_TRANSACTION_FAILED 0x0002 |
#define | BAP_ERROR_DEVICE_ID_MISMATCH 0x0003 |
Macro Definition Documentation
#define BAP_ERROR_DEVICE_ID_MISMATCH 0x0003 |
The device ID does not match the expected value
Definition at line 48
of file bap.h
.
Referenced by BAP_init().
#define BAP_ERROR_DRIVER_NOT_INITIALIZED 0x0001 |
The driver is not initialized
Definition at line 46
of file bap.h
.
#define BAP_ERROR_I2C_TRANSACTION_FAILED 0x0002 |
I2C transaction failed
Definition at line 47
of file bap.h
.
#define BAP_OK 0x0000 |
No errors
Definition at line 45
of file bap.h
.
Referenced by BAP_getPressure(), BAP_getTemperature(), and BAP_init().
Function Documentation
uint32_t BAP_config | ( | BAP_Config * | cfg | ) |
Configure the barometric pressure sensor.
- Parameters
-
[in] cfg
Structure, which holds the configuration parameters
- Returns
- Returns zero on OK, non-zero otherwise
Definition at line 158
of file bap.c
.
References bmp280_set_power_mode(), bmp280_set_standby_durn(), bmp280_set_work_mode(), __BAP_Config::oversampling, __BAP_Config::powerMode, and __BAP_Config::standbyTime.
void BAP_deInit | ( | void |
| ) |
De-initializes the barometric pressure module.
- Returns
- None
Definition at line 138
of file bap.c
.
References bmp280_set_power_mode(), and BOARD_bapEnable().
uint32_t BAP_getPressure | ( | float * | pressure | ) |
Initiates pressure measurement on the barometric pressure sensor and reads pressure from it.
- Parameters
-
[out] pressure
The measured pressure in millibars
- Returns
- Returns zero on OK, non-zero otherwise
Definition at line 218
of file bap.c
.
References BAP_OK, bmp280_compensate_pressure_int64(), bmp280_compensate_temperature_int32(), bmp280_get_forced_uncomp_pressure_temperature(), bmp280_read_uncomp_pressure(), and bmp280_read_uncomp_temperature().
uint32_t BAP_getTemperature | ( | float * | temperature | ) |
Initiates temperature measurement on the barometric pressure sensor and reads pressure from it.
- Parameters
-
[out] temperature
The measured temperature in degrees Celsius
- Returns
- Returns zero on OK, non-zero otherwise
Definition at line 183
of file bap.c
.
References BAP_OK, bmp280_compensate_temperature_int32(), bmp280_get_forced_uncomp_pressure_temperature(), and bmp280_read_uncomp_temperature().
uint32_t BAP_init | ( | uint8_t * | deviceId | ) |
Initializes the barometric pressure sensor chip.
- Parameters
-
[out] deviceId
The device ID of the connected chip
- Returns
- Returns zero on OK, non-zero otherwise
Definition at line 84
of file bap.c
.
References BAP_ERROR_DEVICE_ID_MISMATCH, BAP_OK, bmp280_init(), bmp280_set_power_mode(), bmp280_set_work_mode(), BOARD_bapEnable(), bmp280_t::delay_msec, bmp280_t::dev_addr, and UTIL_delay().