About George

Thanks a lot for the detailed answer and for making this clear. As far as I understand now, the configuration string I asked about here is used to tell the bsxLite API the sensor's default settings. The user can than decide to : 1. Set up the sensor itself with its default settings for accel&gyro-range, fetch its data and feed it to the bsxLite API as it is. or 2. Use whatever range he wants, fetch the sensor's data and convert it to the sensor's default LSB/dps or LSB/mg range before feeding it to the bsxLite API.  I still wonder how to find the default values for the magnometer (bmm150) are. According to the Datasheet the resolution is 0.3 microTesla. Bmm150's api returns 1lsb/microTesla. According to this user this is not a valid input, as he used the "raw" api data, which is 1lsb/(1/16) microTesla, which again is different from the sensors resolution.     Cheers! ... View more

Hi xuchang and thanks for replying. I still don't quite understand how this should work.  I fetch the sensor data with the BMI160 API using 'bmi160_get_sensor_data'. This function returns a bmi160_sensor_data structs, which contains the members int16_t x, int16_t y, int16_t z, and uint32_t sensortime. The x-value for the accelerometer can be converted to a value in g by knowing the set range and thereby the resolution. BSXLite's 'bsx_dostep' expects type 'libraryinput_t' as input, which has the member 'sensordata_t acc', which itself has the members  'ts_dataxyzs32 data'  and 'unsigned int (32Bit) time_stamp', where 'ts_dataxyzs32' consists of the members x,y and z in signed int (32Bit).   If 'bmi160_get_sensor_data' returns a reading of e.g. 10 for acc.x, which is at a range of +/- 2g and resolution = 0.061mg/LSB , this means we have 0.61mg measured by the sensor in x-axis. How am I supposed to give this float value as an input to the bsx_dostep-function,that needs a signed int-input?   On the other hand, if I assume bsxlite needs accelerometer input in unit g and then pass the  int16_t x-value fetched from bmi160_get_sensor_data to the bsxLite library (bsx_dostep), how does the library know if this value is measured in a resolution of 0.061mg/LSB (+/- 2g) or e.g.  0.122mg/LSB for +/- 4g?   Thanks a lot for helping me out with this and have a great day.   Best regards, George   ... View more

Hi, I downloaded the BSXLite lib straight from the bosch-sensortec website, where you get send the link via email after filling in the form under BSXlite (download bsxlite software). Is this not the latest version?  (API Documentation versions are: Document revision 1.2, Document release date 24.02.2015 and Document revision 1.1, Document release date 27.02.2015 ) Best regards. ... View more