CCS/TMS320F28335: How to implement CANopen protocol on CAN BUS

sumanth padarthy

Part Number: TMS320F28335
Other Parts Discussed in Thread: CONTROLSUITE

Tool/software: Code Composer Studio

Hi,

I am using DSP TMS320F28335.

I have run controlsuite programs of CAN and made some changes in the program and able to tranfer the data.

In the hardware, GPIO of dsp is connected to ISO1050DUB then CANH and CANL are brougt out with termination of 120 ohms.

Now i have to implement CANopen protocol on this bus.

1) How to start programming for CANopen? if for CAN i have read document of TI for eCAN, and understood how to use the registers of CAN for transfer as well as receiving.

2) Which registers to use for CANopen protocol ?

3) If you have any sample programs of CANopen which run on f28335, please share.

over 8 years ago

0 Hareesh Janakiraman over 8 years ago

TI__Guru* 95315 points

CANopen is a higher-layer-protocol that runs on the CAN module. i.e. it is a S/W layer that runs over the existing CAN IP. There are no special registers to use for CANopen. Please check www.can-cia.org/ for more information on CANopen. We do not have any sample programs at this time for CANopen.

0 Kash Olia over 8 years ago

Genius 3215 points

Sumanth,
CANopen is a software layer which is implemented over regular CAN system. You just need to understand the message architecture, CANopen dictionary and how to send the message in the right order. This white paper might be helpful:
www.ni.com/.../

Good luck!

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CCS/TMS320F28335: How to implement CANopen protocol on CAN BUS