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2023-01-18T22:34:04Z

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== What is a funktionsrahmen ==
Funktionsrahmen could be translated to "Functional framework". It's a document documenting all the modules that compose an ECU program.

For every module, there is a quick definition, logic diagrams for every sub-functions:

[[File:Fr diagrams.png|613x613px]]

Then the variables and constants are defined :

[[File:Fr variables.png|613x613px]]

Finally, there is a more detailed description of the module and some application notes:

[[File:Fr note.png|721x721px]]

== Understanding the logic diagrams ==
We read the diagram from left to right.

=== Logic gates ===
[[File:Fr logic gate.png|262x262px]]

What we see on the above diagram, the default state of the logic gate would be to use the variable "rlsol_w".

The doted line represent the condition needed to switch the logic gate to a different state. In this instance, if the constant "SY_VS" is greater than "0" (SY_VS > 0), then the logic gate will use the variable "drlrivs_w".

=== Operators ===
[[File:Sum.png|43x43px]][[File:Sub.png|45x45px]][[File:Multiply.png|50x50px]][[File:Division.png|40x40px]]

These operators are self-explanatory

[[File:Mn.png|64x64px]][[File:Mx.png|203x203px]]

'''MN''' will take the smallest of the two variables.

'''MX''' will take the biggest of the two variables.

[[File:Not.png|78x78px]]

This is the equivalent of "inverse / not / negative". If the value is '''true (>0)''', this will ouput '''false (0)'''. If the value is '''false (0)''', then it will output '''true(>0)'''.

[[File:Map.png|72x72px]]

This mean it is using the value of a map, the MAP is indicated below the "icon".

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