PROCESSOR-SDK-AM64X: Concerns when operating of Dual stack that is full protocol stacks from TI on AM6442.

Expert 2511 points

Part Number: PROCESSOR-SDK-AM64X

May I have a question about AM64x full protocol stacks from TI?

My customer is planning run some stacks on one R5F core.

Is there anything to competitive points between stacks?

e.g. If using EtherCAT and Ethernet/IP stacks, However each stacks including lwIP, So we need to edit stacks.

And If there are competitive point, Is there any avoidance plan?

Thanks,

11 months ago

0 Pekka Varis 11 months ago

TI__Mastermind 23820 points

In general one protocol, one ethernet peripheral, one Enet LLD interface, uses one IP stack and address. We would recommend using one R5 per stack, we do not validate multiple stacks concurrently on one R5.

0 GR 11 months ago in reply to Pekka Varis

Expert 2511 points

Hi Pekka-san,

Thanks for your information.

How was this usecase? (use stacks from TI)

"If you wanted to use Profinet with a PHY(s) controlled by one PRU_ICSSG subsystem, and then Ethernet/IP with PHY(s) controlled by the other PRU_ICSSG subsystem, I would expect that to be possible (But I am not sure whether the stacks could be run on the same R5F core or not). I am not sure about other configurations."

Quote:

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1259195/am6442-does-the-pru-icssg-allow-dual-stack-from-r5f

If use PRU_ICSSGs for each protochol, we should to use R5Fs for each stacks?

Best regards,

+1 Pekka Varis 11 months ago in reply to GR

TI__Mastermind 23820 points

One ICSSG runs one protocol, uses the Ethernet ports, and stack runs on one R5 is the baseline. We test using the https://www.ti.com/tool/TMDS64EVM and https://www.ti.com/tool/LP-AM243 where ICSSG1 is connected to the PHY's. In theory either ICSSG instance could be used and stack could run on a different R5. We are including testing parallel protocols in Industrial SDK (MCU+) 10.0.

0 GR 11 months ago in reply to Pekka Varis

Expert 2511 points

Hi Pekka-san,
Thanks for your information.

I understand that nomally, one stack use one R5F/PUR-ICSS.

Best regards,

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PROCESSOR-SDK-AM64X: Concerns when operating of Dual stack that is full protocol stacks from TI on AM6442.