BME280 reporting the same temperature values

[Ale_00]

Hi,

I'm currently using a BME280 to read temperature using I2C with STM32 F401RTE. The problem is that I succesfully initialized the sensor  but when I read the temperature I got 22.4879 every time. Below I copy the init function for the sensor and the code I use to read the data.  I'm using the latest version of bme280 library (v.3.5.1).

struct bme280_dev sensore;
struct bme280_settings *settings;

void init_sensore (){

int8_t rslt = BME280_OK;

uint8_t dev_addr = 0x76;
int8_t (*read_ptr)(uint8_t, uint8_t *, uint32_t, void *) = &user_i2c_read;
int8_t (*write_ptr)(uint8_t, const uint8_t * ,uint32_t, void *) = &user_i2c_write;
void (*delay_ptr)(uint32_t, void *) = &user_delay_us;

sensore.intf_ptr = &dev_addr;
sensore.intf = BME280_I2C_INTF;
sensore.read = user_i2c_read;
sensore.write = user_i2c_write;
sensore.delay_us = user_delay_us;

rslt = bme280_init(&sensore);

settings->filter = BME280_FILTER_COEFF_16;

settings->osr_h = BME280_NO_OVERSAMPLING;
settings->osr_p = BME280_NO_OVERSAMPLING;;
settings->osr_t = BME280_OVERSAMPLING_1X;

settings->standby_time = BME280_STANDBY_TIME_0_5_MS;

rslt = bme280_set_sensor_settings(BME280_SEL_ALL_SETTINGS, settings, &sensore);

rslt = bme280_set_sensor_mode(BME280_POWERMODE_NORMAL, &sensore);
}

float read_temperature(){
float temperature;
uint32_t period = 40;
struct bme280_data comp_data;
int8_t rslt;

user_delay_us(period, sensore.intf_ptr);

rslt = bme280_get_sensor_data(BME280_TEMP, &comp_data, &sensore);

temperature = comp_data.temperature;

return temperature;
}

[BSTRobin]

Hi Ale_00,

The original definition of read-write functions is as follows:
typedef BME280_INTF_RET_TYPE (*bme280_read_fptr_t)(uint8_t reg_addr, uint8_t *reg_data, uint32_t len, void *intf_ptr);
typedef BME280_INTF_RET_TYPE (*bme280_write_fptr_t)(uint8_t reg_addr, const uint8_t *reg_data, uint32_t len,
void *intf_ptr);

I upload BME280 example code on STM32F401 for your reference.