topic Re: Issue with TP Layer Integration on S32k118 in S32K

Issue with TP Layer Integration on S32k118

Shruti_JSS — Tue, 20 Jun 2023 18:58:23 GMT

Hi,

I am facing an issue with the length of the received buffer. I noticed that the length of the last received message will not be updated with the recently received message. On further analysis, I also found that it is triggered from the TP layer “lin_commontl_proto.c” file.

The attached image is the code snippet where I found the issue arise.

When I transmitted a Read DID where the DLC is 3 and then transmitted a Write DID of length 19, I was having issues with my application. Seemed that the value of *length was 3 and temp_length was 19 which led to problem with my application.

I need to understand if I am going wrong somewhere with the way I use the data or does this file need to be updated.

Re: Issue with TP Layer Integration on S32k118

bryan_brauchler — Tue, 20 Jun 2023 20:58:29 GMT

The length pointer should be set by ld_receive_message

Is this getting called on the second transmission?

Best,

Bryan

Re: Issue with TP Layer Integration on S32k118

Shruti_JSS — Wed, 21 Jun 2023 18:01:26 GMT

Bryan,

Yes this function gets called on second transmission as well.

Re: Issue with TP Layer Integration on S32k118

bryan_brauchler — Fri, 23 Jun 2023 18:43:23 GMT

Hello,

We are investigating. Would you be able to provide a minimal example code that demonstrates this issue?

Best,

Bryan

Re: Issue with TP Layer Integration on S32k118

PetrS — Mon, 26 Jun 2023 08:42:55 GMT

Hello,

as Bryan wrote please provide more info. SW stack team is requestion some information as below:

Hardware and software version that they are using.
How can I reproduce this issue?
Trace log or images of the frames that were transmitted on the bus.

Thanks,
BR, Petr