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.)
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.
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.
As manufacturers add new technologies to their products, designing for compliance becomes more difficult.áPrepare for the certification testing process. Otherwise, you increase the risk of discovering a safety issue after a product leaves the assembly line. That willácause significant time-to-market delays,ábe much costlier to fix, and damage your brand in the eyes of customers.á
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