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Original question:

AM2431: Profinet over TSN support

AM2431: PROFINET TSN and Ethernet APL

Christer Persson
Prodigy 10 points
Part Number: AM2431

Tool/software:

Hi,

AM2431 support PROFINET TSN. However, if communication shall be done via Ethernet APL to enable usage in ATEX-environment power consumption will be limited. AM2431 might consume to much power. Is there other MCUs that support PROFINET TSN?

  • 0
    TI__Mastermind 26050 points
    Christer Persson said:
    AM2431 support PROFINET TSN.

    The PROFINET TSN or conformance class D (CC-D) support is a roadmap item, not in the current SDK. Support is planned and alignment of the schedule is done together with the PNIO organization

    Christer Persson said:
    However, if communication shall be done via Ethernet APL to enable usage in ATEX-environment power consumption will be limited. AM2431 might consume to much power.

    PROFINET CC-D is not directly tied to Ethernet APL, see for example https://www.profibus.com/technologies/profinet-over-apl . One of the primary reasons for CC-D is 1G speed and leveraging Ethernet TSN features. PROFINET APL support is primarily targeting 10Mbit/s long reach physical layer 10BASE-T1L, where TSN features are valuable but the 1G performance is not.

    Christer Persson said:
    Is there other MCUs that support PROFINET TSN?

    If your target is 10BASE-T1L based PROFINET over Ethernet APL, there are lower end MCUs like https://www.ti.com/product/AM2631 and further future devices in that family that will support 10M PROFINET APL at lower power consumption points.

      Pekka

  • 0 in reply to Pekka Varis
    Prodigy 210 points

    Hello Pekka,

    We are also interested in a solution for PROFINET over Ethernet APL where we had the AM26x or AM24x lines in mind but they seemed a bit power hungry. As far as I remember both were quite similar in consumption, even though the am26 is a bit lower end (maybe because it is on a 45nm node instead of 16nm?). What are the future devices you are hinting at, or how can we get more information about them?

    We were on the verge of using a microcontroller from another vendor for this, but would like to stay with the AM24/6 family if we can because we already have other designs with it.

    Best regards,

    Ergin

  • 0 in reply to ERGIN AKGUEL
    TI__Mastermind 26050 points
    ERGIN AKGUEL said:
    We were on the verge of using a microcontroller from another vendor for this,

    What is the power consumption you are targeting and what MCU performance are you looking for? AM2431 is around 1W and 400MHz/800MHz R5 MCU, is that the amount of compute you are looking for? Or is significantly less enough. And for power consumption are you targeting some intrinsically safe power level?

    ERGIN AKGUEL said:
    What are the future devices you are hinting at, or how can we get more information about them?
    ERGIN AKGUEL said:
    but would like to stay with the AM24/6 family if we can because we already have other designs with it.

    For roadmap devices I would suggest to work with the field team supporting you. Are you already in contact with sales or an FAE?

  • 0 in reply to Pekka Varis
    Prodigy 10 points

    Ok, will look into lower end, ATEX will limit us to a total of 500 mW for the complete design.

  • 0 in reply to Christer Persson
    Prodigy 210 points

    Yes, the below 500 mW limit is a challenge with these chips. I ran the power estimation tool on the two (AM26 and AM24) and they both come out slightly above 500 mW with most things turned off or to low usage numbers. Not sure what Christer's requirements are, but we mainly need SPI and Ethernet, preferably with Profinet.

    Our application does not need high performance, 100-200MHz on the MCU will suffice.

    We are not in contact with a sales/FAE at the moment. What is the canonical way to get into contact with one?

  • +1 in reply to ERGIN AKGUEL
    TI__Mastermind 26310 points

    Hi ,

    ERGIN AKGUEL said:
    We are not in contact with a sales/FAE at the moment. What is the canonical way to get into contact with one?

    I forwarded your query to team. Will keep you posted.

    Regards

    Ashwani

  • 0 in reply to Ashwani Goel
    Prodigy 210 points

    Hi Ashwani,

    Thank you, we are looking forward to hear from you.

    Best regards,

    Ergin

  • 0 in reply to ERGIN AKGUEL
    TI__Mastermind 26310 points

    Hi Ergin,

    I informed the filed team about your query.

    They will connect with you soon.

    Regards

    Ashwani