SavvyCAN Setup

SavvyCAN is an open-source, cross-platform CAN bus analyzer and reverse-engineering tool. It is widely used for capturing, filtering, and manipulating CAN frames.

The WiCAN Pro has a dedicated protocol setting specifically designed for SavvyCAN integration.

Phase 1: WiCAN Pro Configuration

Before opening SavvyCAN, you must configure the WiCAN Pro to broadcast the correct protocol.

  1. Access the WiCAN Pro Web UI.
  2. Navigate to Settings > CAN.
  3. Configure the following fields:
    • CAN Bitrate: Set this to match your vehicle's bus speed (e.g., 500K).
    • CAN Mode: Choose Normal if you want to inject frames, or Silent if you only want to passively sniff the bus without acknowledging packets.
    • Protocol: Select savvycan from the dropdown list.
  4. Note: Once you select savvycan, the WiCAN Pro will automatically lock the Port Type to TCP and the TCP/UDP Port to 23. This is required for SavvyCAN to communicate correctly.
  5. Click Submit Changes and allow the WiCAN Pro to reboot.

Phase 2: Connecting to the Network

Ensure your PC (Windows, Mac, or Linux) is connected to the WiCAN Pro's network.

  • If the WiCAN is in AP Mode, connect your PC directly to the WiCAN's Wi-Fi hotspot. The IP address will typically be 192.168.0.10.
  • If the WiCAN is in Station Mode, ensure both your PC and the WiCAN are on the same local network. Check the WiCAN's Status tab for its assigned IP address.

Phase 3: SavvyCAN Configuration

  1. Download and open SavvyCAN on your computer.
  2. In the top menu, go to Connection > Open Connection Window.
  3. Click on Add New Device Connection.
  4. Select the connection type (usually listed as a Network connection or TCP bridge).
  5. Enter the connection details:
    • IP Address: Enter the WiCAN's IP address (e.g., 192.168.0.10).
    • Port: 23 (This must match the auto-assigned port from Phase 1).
  6. Click Create New Connection.

Once connected, the status should indicate it is active, and you will begin seeing raw CAN frames populating the main capture window.

!WARNINGDisable Automate: If you are using SavvyCAN to capture a clean log of your vehicle's background CAN traffic, make sure you disable the "Automate" engine in the WiCAN Web UI. Having the WiCAN Pro actively poll PIDs in the background will flood your SavvyCAN capture with diagnostic requests and responses, making it difficult to analyze normal vehicle behavior.

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