• State TI Thinks Resolved
  • Locked Locked
  • Replies 4 replies
  • Answers 1 answer
  • Subscribers 31 subscribers
  • Views 349 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

TM4C129CNCPDT: Arm-based microcontrollers forum

Daisuke Hagiwara
Prodigy 90 points
Part Number: TM4C129CNCPDT

Hello,

We have received questions from our customers.

Regarding TM4C, is there any material about the CPU error countermeasures (neutrons of sunspot activity) in the title?

I would appreciate it if you could teach me.

Thank you.

Daisuke Hagiwara

  • 0
    TI__Guru*** 135355 points

    Hello Hagiwara-san,

    This query isn't really clear to me, I am not familiar with terms like 'neutrons of sunspot activity'.

    Regarding CPU errors we have the following document to debug and resolve: https://www.ti.com/lit/pdf/spma043

    Best Regards,

    Ralph Jacobi

  • 0 in reply to Ralph Jacobi
    Prodigy 90 points

    Hello Jacobi-san

    Thank you very much for your quick reply.

    My phrasing was poor, may I ask again?
    I have a question about SER by the influence of cosmic ray neutrons.
    It is said that the amount of neutrons generated differs depending on the increase or decrease in sunspots.
    A customer asked us about the correlation between the solar cycle and SER and the existence of materials explaining the countermeasures. 
    Did you understand what I spoke about?

    Thank you

    Daisuke Hagiwara

  • 0 in reply to Daisuke Hagiwara
    TI__Guru*** 135355 points

    Hello Hagiwara-san,

    I understand the question now but I have no knowledge about this topic or any idea who would really be able to speak to it. This not something that has come up before. I am not aware of any collateral on this topic from Texas Instruments in general, and certainly nothing what so ever about TM4C devices.

    TM4C microcontrollers are general purpose Industrial-focused single core Arm MCUs, so they would not have any unique protections implemented - just standard semiconductor manufacturing processes.

    If there is a very deep concern about this topic then perhaps they may find our Hercules lockstep microcontroller controllers more applicable as those are actually designed for safety critical applications. I doubt they have done anything to the extent of defending against cosmic ray neutrons, but the lockstep setup would add a level of reliability that TM4C does not offer.

    Best Regards,

    Ralph Jacobi

  • 0 in reply to Daisuke Hagiwara
    Guru 92251 points
    Daisuke Hagiwara said:
    A customer asked us about the correlation between the solar cycle and SER and the existence of materials explaining the countermeasures. 
    Did you understand what I spoke about?

    I found TMS570LC4357: Radiation tolerance data & BSP questions which says you need to select a space qualified part to get radiation test data.