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TMS570 Safety Features

Yannick Charrotton
Prodigy 40 points


Hi,

I have a few questions about the safety features available on the TMS570, described in the Safety Manual (spnu507).

Are there more information on how to implement those features?

For the Managment of errors, how do we link one specific error to the appropriate error group?

On the appendix A of this Manual, there's a list of recommandation.

What are the argues for those recommendations? Is it linked to the probability of failure of the peripheral?

Is it linked to the standard requirements? Is it linked to the facility of implementation?

Best regards,

Yannick

  • 0
    TI__Mastermind 23000 points

    Hello Yannick,

    The details of the hardware programmation can be found in the technical reference manual.  For example, the ESM module description in the TRM provides the information necessary to program the ESM to map error sources to error responses.  This information is not included in the safety manual to avoid redundancy.

    Regarding appendix A, the strength of our recommendations is based on our expert judgement, understanding of the target standards, understanding of "state of the art" in semiconductor functional safety, and the effectiveness of the diagnostics which is documented in the Detailed Safety Analysis Report.  Because there are many possible ways to solve the same problem, these are recommendations rather than requirements.  It is entirely possible that you can architect your system using a Hercules MCU with different safety mechanisms and still meet the requirements of your targeted functional safety standard.

    Best Regards,

    Karl