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CMX-CANopen

Efficient CANopen implementation with maximum performance

CMX-CANopen allows for optimised implementations of CANopen conformant devices. CMX-CANopen was developed to allow for maximum task optimisation, especially when used with an RTOS such as CMX-RTX. Even without an RTOS, CMX-CANopen allows adapting the execution priorities of critical tasks making CMX-CANopen one of the best performing CANopen stacks available.

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ROM Specifications: 8K - 18K bytes (for CANopen Slaves)
Depending upon processor, protocols used and options selected

THE CANopen Solution for Your Embedded Processor

CMX-CANopen has been developed applying the CMX spirit: provide an elegant solution minimising the resources required and maximising the performance. After all, if an implementation uses less code it also executes faster! Our developers have the expertise and hands-on experience to satisfy the most stringent real time demands that the embedded community deals with every day. With CMX-CANopen we created a new level of performance and quality for CANopen implementations:

Efficient Implementation. The CANopen Process Data Objects (PDO) allow for a very flexible configuration allowing a single CANbus message to be filled with a combination of variables available in the Object Dictionary (OD) of a node. This PDO mapping process is implemented so efficiently in CMX-CANopen, that in most cases an incoming Receive PDO (RPDO) can be processed right in the CANbus interrupt service routine.

Advanced Task Control. All major tasks performed in CMX-CANopen are controlled from one single module. If CMX-CANopen is not used with an RTOS, the execution of tasks can still be optimised towards an application. In general, tasks can be executed within the CAN interrupt service routine, a timer interrupt service routine or in the background. This even allows processing different PDOs at different priority levels.

Flexibility. When designing multiple CANopen devices that only vary slightly (for example in some Object Dictionary (OD) entries and/or in PDO configuration) it is desirable to only develop and maintain one version of the code. With CMX-CANopen the entire OD and the PDO configuration can be stored in non-volatile memory. As a result, the configuration of a node can be changed drastically just by downloading a configuration file (download via CANopen supported).

An Affordable Pricing Structure. CMX-CANopen offers a low, one-time fee and no royalties on deployed products. And you get the entire source code for with every purchase!

Supported Features

NMT State Machine
Heartbeat Producer
Node Guarding Response
Object Dictionary (OD) with SDO server
Expedited and segmented SDO transfer
Static PDO Mapping
Dynamic PDO Mapping
PDO with event time
PDO with inhibit time
PDO with SYNC
Emergency Producer
LSS Slave
Non-volatile memory support
Central task control in one module

Important Features of CMX-CANopen

Extremely Small ROM/RAM Requirements
Device Setup via Non-Volatile Memory
Supports Virtually All 8-, 16-,
32-bit Processors and DSPs
Use of Internal CAN Interface or External
No Proprietary Protocols
Runs Stand Alone or with RTOS
Central Task Control
Economical One Time Fee
Full Source Code Provided
No Royalties on Deployed Products
Excellent Documentation and Support

Optional Master Features

NMT Master Message
LSS Master
SDO Client
Network Scanner
Heartbeat Consumer
Emergency Consumer

Supported Processors

Atmel T89C51CC0x (8051)
Freescale 56F83xx
Freescale 68HC12
Freescale PowerPC
Infineon C16x and XC16x
Philips LPC2000 (ARM7)
Philips 8xC591 (8051)
Philips XA-C37

Looking for more in a CANopen Protocol Stack???

CMX-CANopen is delivered with two examples for implementations of the CANopen Device Profile DS401 - generic I/O. Additional and customised examples are available upon request and can include Device Profile Implementations such as Joysticks, Encoders (DS406), Batteries (DSP418), Chargers (DSP419) or Elevators/Lifts (DSP417).

All our examples pass the official CANopen Conformance Test!

Please contact CMX for the latest list of supported evaluation boards -- we add new boards regularly.

Portability

CMX-CANopen has been designed for maximum portability and is written in 100% standard C code. As a consequence, clients can decide to port the software to processors not yet supported directly by CMX, including microprocessors, microcontrollers and DSPs. Our developers are confident that designers familiar with their target processor can easily perform the port themselves. Contact CMX for an in-depth discussion with one of our developers about this option.

Important Features of CMX-CANopen

Extremely Small ROM/RAM Requirements
Device Setup via Non-Volatile Memory
Supports Virtually All 8-, 16-,
32-bit Processors and DSPs
Use of Internal CAN Interface or External
No Proprietary Protocols
Runs Stand Alone or with RTOS
Central Task Control
Economical One Time Fee
Full Source Code Provided
No Royalties on Deployed Products
Excellent Documentation and Support

For more information please contact the MicroWay sales team:
Head Office MicroWay Pty Ltd PO Box 84, Braeside, Victoria, 3195, Australia Ph: 1300 553 313 Fax: 1300 132 709 email: sales@microway.com.au ABN: 56 129 024 825	Sydney Sales Office MicroWay Pty Ltd PO Box 1733, Crows Nest, NSW 1585, Australia Tel: 1300 553 313 Fax: 1300 132 709 email: sales@microway.com.au ABN: 56 129 024 825	New Zealand Sales Office MicroWay Pty Ltd (NZ) PO Box 912026 Victoria Street West Auckland 1142, New Zealand Tel: 0800 450 168 email: sales@microway.co.nz
International: call +61 3 9580 1333, fax +61 3 9580 8995