Software » CANHub

h1. CANServer

h2. 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.

## 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

## 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.

## 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>

h1. Ansi

box(x1,y1,x2,y2)

hLine(x1,y1,x2)

vLine(x1,y1,y2)

┬

│

┴

├──┤

┌─┐

│ │

└─┘

   QLoggingCategory::setFilterRules("*.debug=false");

   qSetMessagePattern("[%{time process}] %{function}: %{message}");

   qDebug("Happy debugging");

h1. Links

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