ETAS
Hardware Description
ES921.1
-
User Guide
14
4
Hardware Description
This chapter provides an overview of the CAN Module ES921.1 and provides
you with information on its properties, connectors and the LED.
4.1
Overview
The complexity of systems in automotive electronics is constantly on the
increase due to the increasing number, growing function scope and networking
of electronic ECUs in vehicles. This in turn increases the requirements made of
communication interfaces between electronic ECUs and other electronic com
-
ponents in the vehicle.
Serial communication buses such as the CAN bus (Controller Area Network)
play a significant role in this data exchange. The CAN bus is also an important
standard in the networking of on-board components. Modern vehicles not only
have CAN buses but also other bus types which are connected to networks via
gateways.
CAN applications are divided into the two categories Low-Speed CAN (max.
125
kBaud) and High-Speed CAN (125
kBaud to 1
MBaud).
4.2
ES921.1
The ES921.1 CAN Module is an extension module for the ES910 Rapid Proto
-
typing Module.
The CAN module ES921.1 has two CAN bus interfaces (High- and Low-Speed).
Each of these CAN bus interfaces can be configured independently of the other
either as a High-Speed CAN or as a Low-Speed CAN. The physical CAN layers
(CAN Transceiver) are switched in this case.
When it is accommodated in the extension slot of the ES910 module, you can,
for example, use CAN-IO with the first interface with the ES921.1 while you
monitor CAN messages with the second one.
Together with the ES910, the ES921.1 module is part of a highly efficient, com
-
pact development and experimental platform with high computing and simula
-
tion performance. A target-similar and fast floating-point processor is used.
The AUTOSAR-compatible RTA-OSEK operating system of the ES910 guaran
-
tees simple transition from the finished function prototype to ECU software
development.
NOTE
Operating the ES921.1 is possible in the extension slot of the ES910.2 and the
ES910.3-A.
