DRT - CANBUS

Overview

Div info about fieldbusses e CANBUS.

The primary litterature is a wiki page. I have found it of high quality and it covers the area very well.

and

fieldbus slideshow
- which gives an overview
- from LOMI Universität Ulm, 2004. Lecture. Computer Networks. Fieldbus Systems. Prof. Dr. H. P. Großmann. Dipl.-Ing. Andreas Schmeiser
which

Some additional litterature if you have time and energy. But mostly to give you all some references.

Given a network based on CANBUS technology … for a 1 Mbit and 125 kbit

calculate and argue for a max cable lenght. hint: how long is a bit ?
Caculate max number of packages on net
Given a number of nodes with the following tuples of transmission period and message prio. calculate/… how the traffic will be on the network. hint scheduling theory ? Assume lower number as higher priority (in access)
- {2 msec,000…}
- {3 msec,0001…}
- {5msec,0002…}
- {10msec,0003…}
- {14msec,0004…}
Design and comment a simple peek and poke protocols which shall be able to react “quick”. Comment and explain quick and find a better way of expresing performance

Develope your own protocol either on I2C

You will need two Arduinos

Prepare for next lecture

install teensy support in your Arduino environment
- left as an exerciuse to find out how
install flexcan on your Arduino
- its left as …
- see here