.. _headlabel-refx-record-76:

76H (Crash GNSS Data Packet)
============================

This message can be sent to the backend server when the crash event is detected. About the crash detection, please see the :ref:`AT@CRASH <headlabel-refx-cmd-crash>` command.

**Note**: When the length of the message is too long, it needs to be sent in multiple frames

The frame format of a report that only carries **76H** record is as follows:

.. code-block:: none

   For example (Total 191 bytes):
   2B 00 00 BF 00 01 23 45 67 89 01 23 45 00 00 00 1B 00 00 80 A8 64 F9 AA F6 00 00 76 00 80 90 80 9A 00 20 00 0A 09 07 3C 46 FF 01 DB 88 57 5E 36 2F 50 00 06 09 07 3C 46 FF 01 DB 88 58 5E 36 2F 51 00 06 09 07 3C 46 FF 01 DB 88 59 5E 36 2F 52 00 06 09 07 3C 46 FF 01 DB 88 5A 5E 36 2F 53 00 06 09 07 3C 46 FF 01 DB 88 5B 5E 36 2F 54 00 06 09 07 3C 46 FF 01 DB 88 5C 5E 36 2F 55 00 06 09 07 3C 46 FF 01 DB 88 5D 5E 36 2F 56 00 06 09 07 3C 46 FF 01 DB 88 5E 5E 36 2F 57 00 06 09 07 3C 46 FF 01 DB 88 5F 5E 36 2F 58 00 06 09 07 3C 46 FF 01 DB 88 60 5E 36 2F 59 00 06 01 23 3F 24

.. tabularcolumns:: |p{3.8em}|p{3.2em}|p{5.5em}|p{5.8em}|p{15em}|p{4.8em}|

.. table::
   :width: 100%
   :widths: auto

   +----------+--------------------+------------------+---------------+------------------------------------------------+---------------+
   | Parts    | Fields                                | Length (Byte) | Range/Format                                   | Default       |
   +==========+====================+==================+===============+================================================+===============+
   | Head     |                                       | 18 or 20      |                                                |               |
   +----------+--------------------+------------------+---------------+------------------------------------------------+---------------+
   | Reserved |                                       | 1 or 1+N      |                                                |               |
   +----------+--------------------+------------------+---------------+------------------------------------------------+---------------+
   | Records  | Record Length                         | 1 or 2        | 00H-7FH or 8080H-FFFFH                         |               |
   +          +--------------------+------------------+---------------+------------------------------------------------+---------------+
   |          | Generated Time                        | 4             |                                                |               |
   +          +--------------------+------------------+---------------+------------------------------------------------+---------------+
   |          | Record Count Number                   | 2             | 0000H-FFFFH                                    |               |
   +          +--------------------+------------------+---------------+------------------------------------------------+---------------+
   |          | `Record ID`                           | 1             | **76H**                                        | **76H**       |
   +          +--------------------+------------------+---------------+------------------------------------------------+---------------+
   |          | `Event Code`                          | 1             | 00H                                            | 00H           |
   +          +--------------------+------------------+---------------+------------------------------------------------+---------------+
   |          | `Data of Record`   | Data ID          | 1 or 2        | 00H-7FH or 8080H-FFFFH                         |               |
   +          +                    +------------------+---------------+------------------------------------------------+---------------+
   |          |                    | Data Length      | 1 or 2        | 00H-7FH or 8080H-FFFFH                         |               |
   +          +                    +------------------+---------------+------------------------------------------------+---------------+
   |          |                    | Data Content     | N             |                                                |               |
   +          +                    +------------------+---------------+------------------------------------------------+---------------+
   |          |                    | ...              |               |                                                |               |
   +          +--------------------+------------------+---------------+------------------------------------------------+---------------+
   |          | ...                                   |               |                                                |               |
   +----------+--------------------+------------------+---------------+------------------------------------------------+---------------+
   | Tail     |                                       | 4             |                                                |               |
   +----------+--------------------+------------------+---------------+------------------------------------------------+---------------+

The definitions of parts 'Head', 'Reserved', and 'Tail' are :ref:`here <refx-frames-report-format>`.

- `Event Code`

  The default is **00H**.

- `Data of Record`

  It consists of one or more :ref:`Data ID units <refx-frames-report-records>`.

  By default, this record contains only the data IDs listed below.

  - :ref:`Data 144 <headlabel-refx-data-144>` - Crash GNSS Data.