CANServer¶

Intro¶

CANServer is an Server-Client library that provides multiple applications access to an CAN-Bus via TCP/IP.
Every message received via CAN gets send to all clients. When an client sends an message, it is send
via CAN-Bus and also to the other clients.
The physical CAN-Bus is optional.

1. Usecases

- CAN over ethernet
- Graphical user interface for home automatisation
An laptop/tablet can be connected to an server via WLAN
- Recording/Replay
An PC-Application could record CAN messages and replay them.
- Debugging
Show CAN traffic while interacting with the bus with other devices.
- WLAN CAN-Bridge
Two CAN segments can be connected via WLAN

1. Architecture

<div style="border: 2px solid #00A4BD; padding: 10px; box-shadow: 6px 4px 8px;">
```
Server TCP Client
List< /-----> connectionTcp
connectionCan |
connectionTcp |
connectionTcp <-----/
connectionTcp
>
```
</div>
Each connection has an id which is an ongoing number handled by the server.

1. Terminal Output
   The server prints a dynamic list with the connections and traffic statistics.
   - ID/Type
   - Connection uptime

• in/out messag count
• in msg/s
  Example:
  <div style="border: 2px solid #00A4BD; padding: 10px; box-shadow: 6px 4px 8px;">
  ```
  Id Target Uptime In Out In/s
  -----------------------------------------
  0: CAN 0:10s 12 55 0
  1: Server 0:10s 3 51 0
  2: Client 0:05s 43 52 0
  3: Client 0:01s 1 57 0
  ```
  </div>

Links¶

https://www.sciencebuddies.org/science-fair-projects/references/ascii-table