Arm Cortex-M7 - still single precision FPU

On Thursday, September 25, 2014 10:42:23 AM UTC-4, upsid...@downunder.com wrote:
> On Thu, 25 Sep 2014 05:12:33 -0400, rickman <gnuarm@gmail.com> wrote:
> 
> >Also, this series which is called "Hercules" under the "Safety" line 
> >seems to be all about the dual CPUs which I think are intended to run 
> >duplicate code as a redundant backup.  They talk about running them in 
> >"lockstep" which means you can use logic to tell if they differ which 
> >would indicate a failure.
> 
> Only two CPUs ?
> 
> If they disagree, how does the logic tell, which gives the correct
> result and which doesn't ?
> 
These are used for SEU protection, like in anti-lock brakes for cars.