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dbc-codegen2

dbc-codegen2 is a DBC code generator for CAN bus messages.

It parses a .dbc file, builds an intermediate representation (IR), and generates strongly typed code for working with CAN frames.

Currently supported targets:

  • Rust
  • C++

Installation

Install using Cargo from crates.io:

cargo install dbc-codegen2

After installation the CLI is available as:

dbc-codegen2

Usage

dbc-codegen2 <COMMAND> <INPUTS> -o <OUTPUT> <FLAGS>

Commands

Command Description
parse Parse a DBC file and print parsed output
ir Show intermediate representation
gen Generate code from a DBC file

Use --help to get more information. For example,

dbc-codegen2 gen --help

Flags

Flag Description
--no-enum-dedup disable enum deduplication
--no-enum-other remove _Other variant from enums
--zero-zero-range-allows-all remove range checks from signals that have [0|0] ranges

Code injection

If you use the project as a library and build the CodegenConfig manually, you can fill out the rust_code_injections map with strings that will be inserted into the generated code. Please take a look at src/main.rs main function for an example of code injection.