I download the "LibrePilot1509 GCS" and used for my revolution board, the gps information on OSD is correctly.(The revo firmware was upgraded from this GCS)
Then I build the source code, and get the "LibrePilot1509 GCS r154", the strange thing happened, the gps info missed.(The revo firmware was build myself, and flashed from this GCS)
Could you help me? What was I doing wrong?
Merry Christmas!