2018-11-04 01:39 AM
STM32H743: errata sheet reports a bug by using both CAN-Interfaces (CANFD), is this bug
still valid for currently manufactured silicon or fixed ?
2018-11-04 02:15 AM
Does it attribute it to Rev Y silicon? Because that relates to most everything currently shipped.
2018-11-04 03:03 AM
Thanks for that info, i wil check it tomorrow when i'm back in office,
2018-11-04 08:58 AM
The Rev X might be available as an engineering sample, you would need to discuss your specific issue with the FAE servicing your account.
Rev Y has been on all the NUCLEO-H743ZI boards I have in stock. I have an old EVAL board with an earlier Rev Z part.
2018-11-04 10:30 AM
Good evening from here, thanks for further clarification.
The error comes up by using both CAN at the same time, because they are sharing the same
memory buffer - so i understand the errata sheet. For me, it's not important when the bug exists
today - i'm just at the beginning regaring the H7-chip - but it's very important to know, that people
working to fix this issue in a later silicon - otherwise it would be a bit waste of time, because i need
both CAN's in the future - may be in a couple of months... When this becomes true, i can survive
easely for the time beeing. Only the current workaround proposed is not what i would call so:
"do not use both CAN at the same time"...
2018-11-05 04:17 AM
Hi @michael from rentron ,
As indicated in the Errata-sheet, this limitation will be fixed in the next Silicon revision.
Khouloud.
2018-11-05 04:36 AM
Hi Khouloud,
Thank's for this information, i've not seen by reading the sheet, but anyway this solves the problem.
Michael.
2018-11-05 04:47 AM
Hi Michael,
It's indicated in the "Summary of device limitations" table:
where “-�? means "limitation absent".
You're always welcome and in case you have any other questions, do not hesitate to post them here in our STM32MCUs forum :smiling_face_with_smiling_eyes:
Khouloud.
2018-11-05 05:42 AM
When might we expect to see Rev X silicon in the wild?
2018-11-05 08:40 AM
Hi @Community member ,
All information regarding the new silicon revision will be communicated in ST website.
If you need any details urgently, you may contact your FAE.
Khouloud.