ArduPilotMega - invalid home position

In the serial monitor my ArduinoMega tells me :

Init ArduPilotMega 1.0.1 Alpha
min / max from eeprom 46 0
Offsets 0.00 0.00 0.00 0.00 0.00 0.00
##FBW A
XXX Startup: AIR
XXX invalid home position

Can anybody tell me what is going wrong.

Thanks

Christoph

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Replies

  • So I re-programed the Ublox and checked the settings. Now I am getting data....

    Init ArduPilotMega 1.0.1 Alpha
    min / max from eeprom 1000 2000
    Offsets -7.08 138.42 -16.02 2.98 23.57 -56.42
    ##FBW A
    XXX Startup: AIR
    load WP
    PWP: 0, 0, 0
    CUR: 0, 0, 0
    NWP:2, 376213920, -1223746560, 145300
    wp_distance -1
    ??2|0|0|0|376213920|-1223746560|145300|-1|0|0
    command #: 2 id: 18 p1: 4 p2: 8000 p3: 376213920 p4: -1223746560
    ##LOITER
    !!0|0|0|0|0.0000000000|-6228|0|-1|45|14228
    !!399679617|-820087926|121980|3|0.0000000000|-15320|0|3568708|45|23320
    !!399679612|-820087920|138309|3|0.0000000000|1009|0|3568708|45|6991
    !!399679612|-820087920|138309|19|0.0000000000|1009|0|3568708|45|6991
    !!399679612|-820087926|134717|29|0.0000000000|-2583|0|3568708|45|10583
    init home
    !!399679612|-820087926|134717|29|0.0000000000|0|0|3568708|45|10583
    !!399679617|-820087938|134708|74|0.0000000000|-9|0|3568708|45|10592
  • I'm getin the same error with the UBlox and MTK GPS

    Jason
  • Christoph,

    I got the same messages. I even thought my u-blox GPS which I bought from DIY-Drones store some weeks ago was defunct.
    However, it turned out that the GPS has not been programmed as ordered (ready to work with Ardupilot). So I had to reprogram it according to the instructions I found in the Wiki.
    After that the Baudrate was correct and the GPS did talk to the APM.

    Paul
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