SPC5742P Flexray data reception not happening

[kpitsupportshas]

Hello,

We are using SPC5742P  microcontroller. When we tried to transmit(event based) 135bytes of data and more in dynamic segment from FR panel in CANalyzer, the flexray driver doesn't receive the data and if we transmit 134bytes and below from CANalyzer, flexray driver receives the data and the data are observed in the application.

Can you please let us know why flexray doesn't receive the data , if more than 134 bytes of data transmitted from CANalyzer?

Thanks for your support,

Regards,

Srinivasan K.

[lukaszadrapa]

Hi,

I'm not Flexray expert, so I can be wrong but I can see these two things in the Flexray specification:

First point is that the number of bytes should be even:

And then there's a footnote 58 related to cPayloadLengthMax:

What is your bitrate? I think that this could be the reason.

Regards,

Lukas