• State Resolved
  • Locked Locked
  • Replies 7 replies
  • Subscribers 31 subscribers
  • Views 335 views
  • Users 0 members are here
Support feedback
Options
Options

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AM2434: Complies with what TSN standard

Geoffrey Ficara
Intellectual 2990 points
Part Number: AM2434

Hi, 

1) I saw many times that this device supports TSN, however TSN is a set of standards so with which is it compliant exactly ? 

2) Safety :I

  • Is this device SIL-3 certified ?
  • When it comes to the SW, all the drivers are certified SIL-3 ?  

Regards,

Geoffrey

  • 0
    TI__Mastermind 27743 points

    Hi Geoffrey,

    Geoffrey Ficara said:

    1) I saw many times that this device supports TSN, however TSN is a set of standards so with which is it compliant exactly ? 

    Below is summary of TSN support both from HW as well as SW support point of view -

    Feature

    IP

    Support

    MCU+ SDK

    802.1Q

    VLANs

    Y

    4Q2021 (SDK8.1)

    802.1AS-2020:

    Time Synchronization (AS-Rev)

    Y

    1Q2022[3]

    (SDK 8.2)

    802.1Qbv

    Enhancements Scheduled Traffic (EST): Time-Aware Shaper(TAS)

    Y

    1Q2022

    (SDK 8.2)

    802.1Qbu

    Interspersed Express Traffic (IET): Frame Preemption

    Y

    1Q2022

    (SDK 8.2)

    802.1Qav

    Forward and Queing  of Time Sesitive Streams (FQTSS)

    Y

    N

    802.1Qci

    Per-Stream Filtering and Policing (PSFP)

    P[1]

    N

    802.1CB

    Frame Replication and Elimination for Reliability(FRER)

    N[2]

    N

    802.1Qch

    Cyclic Queuing and Forwarding

    N

    N

    802.1Qcr

    Asynchronous Traffic Shaping

    N

    N

    802.1Qat

    Stream Reservation Protocol (SRP)

    N/A

    N[4]

    802.1Qcc

    Enhancements to SRP

    N/A

    N[4]

    802.1BA

    Audio Video Bridging (AVB) Systems

    N/A

    N[4]

    Geoffrey Ficara said:

    2) Safety :I

    • Is this device SIL-3 certified ?
    • When it comes to the SW, all the drivers are certified SIL-3 ?  

    I will come back on this.

    Regards,

    Prasad

  • 0 in reply to Prasad Jondhale
    TI__Intellectual 2990 points

    Hey Prasad, 

    1) Can you tell me more about the 802.1CB : Frame Replication and Elimination for Reliability(FRER) ?

    My customer targets this particular feature and I can see that it can implemented in SW. Have we done it already / Do you have any info ? 

    2) Forward and Queing  of Time Sesitive Streams (FQTSS) is supported but there a N for the SDK version, what does it mean ? 

    3) Any update about the safety ? 

    Regards,

    Geoffrey

  • 0 in reply to Geoffrey Ficara
    TI__Mastermind 27743 points

    Hi Geoffrey,

    Geoffrey Ficara said:

    My customer targets this particular feature and I can see that it can implemented in SW. Have we done it already / Do you have any info ? 

    Yes, 802.1CB can be implemented in SW. We have not done this and there is no plan. However, there was analysis done to get performance estimate on 1GHz R5 on one of Jacinto family of devices. I can get that data if it helps. Meanwhile can you please share the throughput requirements like packet rate etc.

    Geoffrey Ficara said:

    2) Forward and Queing  of Time Sesitive Streams (FQTSS) is supported but there a N for the SDK version, what does it mean ? 

    N in SDK version means HW supports but no plan for SW support. 

    Geoffrey Ficara said:

    3) Any update about the safety ? 

    Can you please create a new thread so we can assign to safety expert?

    Regards,

    Prasad

  • 0 in reply to Prasad Jondhale
    TI__Intellectual 2990 points

    Hi Prasad, 

    Thank you for the answer :)

    Yes please can you send me the analysis ? 

    Regards,

    Geoffrey

  • 0 in reply to Geoffrey Ficara
    TI__Mastermind 27743 points

    Hi Geoffrey,

    Let me get it from SW team. Pls allow me some time to get it adapted/cleaned for AM243x. I will come back on this by Tuesday.

    Regards,

    Prasad

  • +1 in reply to Prasad Jondhale
    TI__Mastermind 26080 points
    Geoffrey Ficara said:
    1) Can you tell me more about the 802.1CB : Frame Replication and Elimination for Reliability(FRER) ?

    I would not recommend this device for 802.1CB/FRER, except for highly restricted use cases of some tens of thousands of frames per second at maximum. and endpoint only. FRER defines duplicating and removing duplicates of also switched traffic, which is up to ~150k packets per second full duplex at 100M Ethernet and ~1.5M packaets per second at 1G Ethernet.

    Geoffrey Ficara said:

    2) Safety :I

    • Is this device SIL-3 certified ?
    • When it comes to the SW, all the drivers are certified SIL-3 ?  

    No it will not be SIL-3 certified drivers. See datasheet https://www.ti.com/lit/gpn/am2434 : 

    "Systematic capability up to SIL 3 – Hardware integrity up to SIL 2 targeted for MCU domain "  

      Pekka