Vida database analysis
======================

The main focus is the CARCOM database. (since guess, here is the CAN messages get assembled or translated)

something key is the ecu-identification

As a starting point the diagnostic session was used.
Looking up 31254684 AC diagnosticPartNO in T100, gave EcuvariantID = 2013.

- it refers to T101 and from there to T102

so here I find identifier : 372302, CEM (this also is present in XML files)
Suppose this is the CEM under the glove box.

- T120 links to T121 

Here if find "29" which refers to extended CANBUS ID

.. image:: ../images/ecuvariant.png


+-------+-----------+----------------+----------------+------------------+----------------+------------------+------------+-------------+----------+--------+--------+----------+----------+--------+------------+---------------------+
|   id  |fkT123_Bus|fkT122_Protocol|fkT130_Init_Diag|fkT130_Init_Timing|physicalAddress|functionalAddress|canAddress  |commAddress  |priority  |canIdTX |canIdRX |canIdFunc |canIdUUDT |busRate |addressSize |fkT121_Config_Gateway|
+=======+===========+================+================+==================+================+==================+============+=============+==========+========+========+==========+==========+========+============+=====================+
|  1696 |     1     |       5        |      4288      |       4289       |       D0       |        50        |   FFFFE    |      50     |    1     |        |        |          |          |        |     29     |                     |
+-------+-----------+----------------+----------------+------------------+----------------+------------------+------------+-------------+----------+--------+--------+----------+----------+--------+------------+---------------------+