Richard A. Smith wrote:
>>> Ideally updates could be frequent enough to pick up a waveform
>>> from an unrectified power supply. (spare audio channel?)
> 
> Don't have much in the way of EC cycles available.  Don't have much EC 
> ram left to cache values either.
> 
> I can make the readings available via EC commands but each command takes 
> a few ms to complete and back to back commands will have a few ms of 
> delay as well.  I'm guessing you might be able to get a 20ms update rate.

That's not fast enough for much interesting signal processing, but it's
more than fast enough to do power metering.  Power metering while on
external power is something I've specifically been hoping for.

(So please consider adding this to the end of your very long EC TODO.)

--Ben

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