µC/CAN Overview
You are here : Micrium
: Products : µC/CAN :
Overview
Introduction
µC/CAN is a CAN protocol framework, which enables easy and clean implementation of CAN communication paths. µC/CAN is a source code library optimized for speed, flexibility and size. High portability and clean documentation was focused during development.
Architecture
The goal of µC/CAN is to reduce the development effort of a developer wanting to embed CAN. The developer just needs to understand signals, messages and bus configurations.
The different abstraction layers can be used independently. |
 |
Application Signal
This layer gives access to logical signals, which are located in one or more CAN messages. Changes of signals can be checked and predefined actions can be executed.
Message
The message layer organizes all information necessary for sending and receiving CAN messages. Identifier, data length code (DLC) and data (and linked signals) are bundled and dedicated to one or more buses.
Bus Management
µC/CAN can communicate via one or more CAN buses at the same time. The bus management layer organizes the CAN buses and distributes the messages to the different device drivers.
Device Driver Layer
The device driver layer buffers CAN messages to be sent and received. All hardware dependencies are capsulated in this layer. Your embedded target can also have multiple, different CAN controllers.
Protocols
µC/CAN enables the easy and quick implementation of custom CAN protocols such as CANopen.
CANopen I (Small Sensor Slave)
| A CANopen stack with the listed protocol components is available according to the CiA standard DS-301 V4.02. |
Component |
Description |
SDO Server |
Up to 127 |
SDO Client |
No |
ID configuration per SDO |
Yes |
PDO Producer |
Up to 127 |
PDO Consumer |
Up to 127 |
PDO Mapping |
Dynamic |
NMT Slave |
Yes |
NMT Master |
No |
NMT Heartbeat Producer |
Yes |
NMT Node Guarding |
No |
EMCY Producer |
Yes |
EMCY Consumer |
No |
LSS Slave |
Yes |
LSS Master |
No |
|
Driver
| Device drivers are available to support different CAN controllers. Drivers added on a regular basis. Please consult our web site. |
Driver |
Description |
Atmega |
AT90CAN128 |
Fujistu |
MB90F3xx |
Freescale |
M68376,
MPC565,
MPC5554, (Q4/2007)
MPC5200B, (Q3/2007)
S12XD, (Q2/2007)
S12XE (Q2/2007) |
Infineon |
XC167,
TriCore 1796 (Q4/2007) |
NXP |
LPC2xxx,
SJA1000 |
ST |
STR73x (Q2/2007) |
Texas DSP |
TMS240x,
TMS28xx |
Windows |
KVaser CAN Devices |
|
|
