LinuxCanbusTool

A comprehensive Linux CAN bus tool with DBC file parsing, CAN message transceiver, data recording and database storage capabilities.

🚀 Features

Core Functions

• DBC File Parsing - Support for reading and parsing standard DBC format files
• CAN Message Parsing - Automatic parsing of CAN message signals based on DBC definitions
• CAN Message Packaging - Package signal values into CAN messages according to DBC definitions
• Bidirectional Communication - Support for both CAN message transmission and reception
• Real-time Monitoring - Real-time display of CAN signal value changes

Data Processing

• CSV Data Recording - Real-time CAN data recording and saving in CSV format
• MySQL Database - Save CAN data to MySQL database
• Python Integration - Support for calling Python scripts for data processing
• Multi-interface Support - Support for multiple CAN interfaces like can0, can1, etc.

Testing Features

• Loopback Testing - Loopback functionality testing between can0 and can1 interfaces
• Timed Transmission - Support for different transmission cycles (10ms, 20ms, 50ms, 100ms)
• Performance Statistics - Statistics for message parsing, packaging, and transmission/reception timing

📋 Requirements

• Operating System: Linux (with SocketCAN support)
• Compiler: GCC with C99 support
• Dependencies:
  • pthread (for multi-threading support)
  • MySQL client library (optional, for database functionality)
  • Python development headers (optional, for Python integration)

🔧 Build

Using Code::Blocks

The project includes Code::Blocks project files (*.cbp) that can be opened and compiled directly in Code::Blocks.

Manual Compilation with GCC

gcc -o dbc_load_tool main.c canbus.c pharse.c package.c BO_Index.c \
    dbc_timer.c GetTime.c MySql.c PyCall.c menu.c \
    -lpthread -lmysqlclient -lpython3.x

📖 Usage

Basic Usage

./dbc_load_tool <dbc_file>

Example

./dbc_load_tool Huanghonglei.dbc

Operating Modes

After starting the program, a menu will be displayed with the following options:

1. Canbus MySql - CAN data reception and storage to MySQL database
2. Fork - Dual-interface loopback test mode for can0 and can1
3. Test Mode - Timed transmission test mode
4. CSV + Python - CSV recording mode with Python script integration
5. Test - Python integration functionality testing

DBC File Format

Supports standard DBC file format including:

• BO_ message definitions
• SG_ signal definitions
• Signal properties (start bit, length, byte order, sign, factor, offset, etc.)

📁 Project Structure

LinuxCanbusTool/
├── main.c              # Main program entry point
├── canbus.c/.h         # CAN bus interface wrapper
├── pharse.c/.h         # DBC parsing functionality
├── package.c/.h        # CAN message packaging functionality
├── BO.h                # CAN message and signal data structure definitions
├── BO_Index.c/.h       # DBC file loading and indexing
├── dbc_timer.c/.h      # Timed transmission functionality
├── MySql.c/.h          # MySQL database interface
├── PyCall.c/.h         # Python integration interface
├── GetTime.c/.h        # Time statistics utility
├── menu.c/.h           # User interface menu
├── *.dbc               # DBC file examples
└── bin/Debug/          # Compilation output directory

🔧 Configuration

CAN Interface Setup

Ensure the CAN interface is properly configured:

# Setup CAN interface
sudo ip link set can0 type can bitrate 500000
sudo ip link set up can0

MySQL Configuration

If using database functionality, ensure MySQL service is running and configure the appropriate database connection parameters.

Python Environment

If using Python integration features, ensure Python development environment is installed.

📊 Performance

• Real-time Performance - Supports real-time processing of high-frequency CAN messages
• Multi-threading - Multi-threaded architecture with separated transmission/reception and display
• Memory Management - Dynamic memory allocation supporting large DBC files
• Time Statistics - Built-in performance monitoring with processing time statistics

🤝 Contributing

Issues and Pull Requests are welcome to improve the project.

📄 License

Please check the LICENSE file in the project root directory for license information.

👨‍💻 Author

• Huang Honglei - Intern Project 2018/4/23

📞 Support

For questions or suggestions, please contact via:

• Submit GitHub Issues
• Email project maintainers

---

Note: This tool is primarily designed for automotive electronics CAN bus development and testing, suitable for vehicle ECU communication debugging, CAN protocol analysis, and similar scenarios.