AM3356: PROFINET packet is truncated

Andy Zhou(Zhou Hong Kun)

Part Number: AM3356

Tool/software:

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1341607/am3356-cpm-isr-miss-when-the-irt-and-rt-mixed

This thread has been locked but the bug was not fixed.

Let's continue in this thread.

8 months ago

+1 Laxman Chinnannavar 8 months ago

TI__Intellectual 2320 points

Hi Andy,

We have found a workaround for the PPM truncation issue when tested with 1 IRT and 2 RT devices connected in daisy chain topology. We have tested this FW for 1 hour and have observed no PPM packets getting truncated. Please find the patch within the TI drive link below and let us know if the FW changes have resolved the issue in your tests.

Note: This is a debug firmware shared to test at your side. Will be running more tests to ensure the robustness of this fix.

Drive Link: Corrupt_PPM_Fix
Access Code: DFc-54Rz

Best Regards,
Laxman

0 Laxman Chinnannavar 8 months ago in reply to Laxman Chinnannavar

TI__Intellectual 2320 points

Hi Andy,

Please use this drive link to access the FW header files: https://tidrive.ext.ti.com/u/iyXapTkl2qmZJdq8/76db21dd-99ad-40c6-b186-de0c29a5b969?l

Regards,
Laxman

0 Andy Zhou(Zhou Hong Kun) 8 months ago in reply to Laxman Chinnannavar

Intellectual 800 points

Hi Laxman,

Apologies for delay. I had been testing the IRT and RT mixed communication of 5 devices with the new FW. I will get back to you by the next week.

Thank you for your patience.

Andy

0 Andy Zhou(Zhou Hong Kun) 8 months ago in reply to Laxman Chinnannavar

Intellectual 800 points

Hi Laxman,

I tested 6 devices (2*IRT+4*RT) for 2*24h.They worked fine! I think new FW solved this bug.

Thanks for your help !

Regards,

Andy

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AM3356: PROFINET packet is truncated