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Nav subcommand #33

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Nav subcommand #33

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Commits on Oct 27, 2019

  1. Fix unpack_waypoint() latitude parsing 

    The fifth byte in a waypoint definition is 0xf0 for waypoints created on the device itself, but 0xff for waypoints created in Yaesu's PC software, YCE15.

The radio seems to ignore the fifth byte altogether, so I'm not sure whether that difference was intentionally introduced by Yeasu, or if it was a mistake. Either way, both formats should be accepted by unpack_waypoint(). This change accomplishes that by simply ignoring the fifth byte, starting unpacking with the sixth byte, which contains the most significant digits of the latitude value.

In order to be in line with Yeasu's own use, pack_waypoint() is changed to use 0xff for the fifth byte. This doesn't seem to matter one way or the other though.
    @johannessen
    johannessen committed Oct 27, 2019
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  2. Add nav command to dump waypoints read from device to GPX 

    A first step towards dumping/flashing navigation data.

The code in nav.py is basically lifted straight from gpslog.py.
    @johannessen
    johannessen committed Oct 27, 2019
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  3. Implement dumping of routes to GPX

    @johannessen
    johannessen committed Oct 27, 2019
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  4. Refactor CLI to fit proposal in cr#1

    @johannessen
    johannessen committed Oct 27, 2019
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  5. Add skeleton of nav data flash/erase CLI proposed in cr#1

    @johannessen
    johannessen committed Oct 27, 2019
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  6. Fix pack_waypoint() to avoid ProtocolError

    @johannessen
    johannessen committed Oct 27, 2019
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  7. Implement nav --flash with --erase

    @johannessen
    johannessen committed Oct 27, 2019
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  8. Handle nav history and status 

    The current and previously used navigation targets are implemented as indices to the waypoint/route lists. After replacing these lists with new data, those indices are no longer usable and may put the radio in an inconsistent state.

This change works around this issue by clearing the navigation status and history for data read from GPX.
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    johannessen committed Oct 27, 2019
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  9. Add waypoint MMSI output

    @johannessen
    johannessen committed Oct 27, 2019
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  10. Add GPX meta data

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    johannessen committed Oct 27, 2019
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  11. Refactor unpack_waypoint() latitude parsing

    @johannessen
    johannessen committed Oct 27, 2019
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