AURIX™ Forum Discussions

[avatar]

Dear all,

How to setup TC397 CAN module to generate CAN Wake-Up Frame or Wake-Up pattern?

Is there any iLLD demo code to generate this WUF?

[dw]

Hi avatar,

FYI.

https://www.can-cia.org/fileadmin/resources/documents/proceedings/2017_hell.pdf

https://www.can-cia.org/fileadmin/resources/documents/slides/icc_2017_slides_hell.pdf

Transceivers with remote wake up feature have been on the market for 15 years.
The first wake up method was specified in ISO11898-5:2007. In the field, unwanted wake up events caused by spikes or disturbance or a permanent short circuit on the bus were observed.
ISO 11898-2:2016 specifies the new wake up method, which reduces unwanted wake up events. The following sections describe:
• the established wake-up method
• the new wake-up method, based on WUP (Wake-up Pattern)

dw

[avatar]

Hi dw,

Thanks for your info.

My question is how to call iLLD API or set CAN registers to get a CAN wake up frame from TC397?

[dw · Accepted solution]

Dear User,

From my understanding, the new WUP wake up mechanism guarantee a more reliable
bus wake up mechanism
› All classical CAN and CAN FD frames supports remote wake up
› No dedicated wake up Frame needed
› The tightened range 500ns to 1800ns covers OEMs req. world wide
› All these parameters are specified in the new ISO 11898-2:2016

dw