Software Update. FDR. GPS data

Posted on Posted in FDR, GPS, Software Update

Bug fixes in Direct_GPS python script.

The script sends satellite signal information into the CAN bus separately for each of the two constellations GPS (USA) and GLONASS (Russia)

The messages have arbitration ID 101 and 102 respectively.

The structure of the messages:

  • The first byte is the number of satellites received by the GPS unit
  • Other 7 bytes in the CAN message represent satellites signal level from 0 to 14 presented as 4 bit words (one bytes carries information for two satellites)

New version of the Display software uses this information to show the satellites signal levels on the screen.

Github link: https://github.com/ExperimentalAvionics/Direct_GPS