Usage

Important Notice

CAN-Interface is not suited for production purposes. It is not guaranteed that CAN-Frames will reach their destination or reach in the right order. Use the CAN-Interface only for purposes where packet loss is tolerable.

Example

Preparation

• Connect the SUB-D connector from the CAN-Interface with a CAN-Bus
• Make a Wi-Fi connection between a Computer and the access point of the CAN-Interface
• To start the communication with the CAN-Interface send an initialization message to the UDP-Socket

Sending

1. Open an UDP-Socket

2. Build a Cannelloni Data Package containing the CAN-Frames to send (Header + encoded CAN-Frames)

   class CANNELLONIDataPacket(object):
       """
       Header for Cannelloni Data Packet
       """
       def __init__(self):
           self.version = 0
           self.op_code = 0
           self.seq_no = 0
           self.count = 0
   

3. Send the Cannelloni Data Package via UDP to the CAN-Interface

Receiving

1. Open an UDP-Socket
2. Receive the UDP-Packages sent from the CAN-Interface
3. Unpack the CAN-Frames using the Cannelloni Data Package
4. Decode the CAN-Frames