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Safety Is Basis of TI's Hercules MCUs
9/26/2011

To guard against common-mode failure, the two processors are oriented at 90 degrees  to one another, and a two-cycle delay is introduced in the signals before comparison. (Image courtesy of Texas Instruments.)
To guard against common-mode failure, the two processors are oriented at 90° to one another, and a two-cycle delay is introduced in the signals before comparison. (Image courtesy of Texas Instruments.)

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Beth Stackpole
User Rank
Blogger
Better safe than sorry
Beth Stackpole   9/26/2011 6:32:18 AM
Sounds like TI built up a pretty impressive, layered diagnostic and self-testing architecture for this MCU series. Is this kind of layered approach common or is this a capability that's fairly unique to the Hercules line? If so, seems like it would give TI quite a competitive edge.

jmiller
User Rank
Platinum
Re: Better safe than sorry
jmiller   9/26/2011 10:21:01 PM
NO RATINGS
And when dealing with saftey cost is geneally less of an issue.  Great article by the way as well.  Often saftey is so focused on the mechanical that the electrical can be missed.  Much less individual components within the electrical system.

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