LIN Description File (LDF)

The configuration of the Local Interconnect Network (LIN) network cluster, i.e. the specification of:

  • Network publishers and subscribers
  • Signals
  • Frames

is managed in the LIN Description File (LDF). This is an ASCII-text file created by the network designer and provided to vendors who will be developing LIN Master/Slave node hardware/software.

From the LDF, ANSI-C driver code and header files are automatically generated using suitable tools, such as theIHR LIN Driver Configuration Tool.

Basic Workflow

lin-workflow.png

LDF

  • Defined by consortium.
  • Global description language:
    • One single file describes a complete LIN network.
    • Universal file for embedded software, test, validation, and analysis tools.
  • Defines cluster information:
    • Protocol Version.
    • Language Version.
    • Bus Speed.
    • Node List.
    • Signals.
    • Frames.
    • Schedule Tables.

LDF Header Section

ldf-header.png

LDF Signal Definition Section

LDFSignals

ldf-signals.png

LDF Frame Definition Section

LDFFrames

ldf-frames.png

Further Reading

A detailed description of the LIN Configuration Language is provided in Section 9 of theLIN v2.2A Specification.