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Sorry, I need confirm some cases. 96 pcs BMA253 result, are these all run success(SCL and SDA high level, I2C communication ok) ? 4 pcs BMA253 SCL pin always low level voltage? ... View more

Sorry, I haven't BMA250 datasheet. From our lateset BMA2x2 API Link, https://github.com/BoschSensortec/BMA2x2_driver, this driver support BMA250E and BMA253. So I think there no much difference bewteen BMA250E and BMA253. BMA253 chip id is 0xFA, what's BMA250 chip id?  Please confirm this. ... View more

Sorry, I didn't see this 10K res. CSB could be float in I2C mode. So please confirm the PB10/11 could run in I2C mode. ... View more

Hi, From your photo, there are no pull up resistance of SCL and SDA line, please refer to bma253 datesheet to get the connection diagram of I2C. Maybe, you could try config SCL(PB10) and SDA(PB11) of STM32L051 internal pull up, meanwhile in I2C mode. Best regards. ... View more

Hello, From API code as bellow, two function are different. So you could follow example code to make configuration. /*! * @brief This API configures the power mode, range and bandwidth * of sensor. */ int8_t bmi160_set_sens_conf(struct bmi160_dev *dev) { int8_t rslt = BMI160_OK; /* Null-pointer check */ if ((dev == NULL) || (dev->delay_ms == NULL)) { rslt = BMI160_E_NULL_PTR; } else { rslt = set_accel_conf(dev); if (rslt == BMI160_OK) { rslt = set_gyro_conf(dev); if (rslt == BMI160_OK) { /* write power mode for accel and gyro */ rslt = bmi160_set_power_mode(dev); if (rslt == BMI160_OK) { rslt = check_invalid_settg(dev); } } } } return rslt; } /*! * @brief This API sets the power mode of the sensor. */ int8_t bmi160_set_power_mode(struct bmi160_dev *dev) { int8_t rslt = 0; /* Null-pointer check */ if ((dev == NULL) || (dev->delay_ms == NULL)) { rslt = BMI160_E_NULL_PTR; } else { rslt = set_accel_pwr(dev); if (rslt == BMI160_OK) { rslt = set_gyro_pwr(dev); } } return rslt; }   ... View more