[TriEmbed] Fwd: Re: Atmega fast startup

[John Vaughters]

I thought I did send it to the list, but in any case, I forgot to add this:

Very nice work, very interesting.

John Vaughters



On Wednesday, January 10, 2018, 10:12:12 AM EST, Pete Soper via TriEmbed <triembed at triembed.org> wrote: 





I think John meant for this to go to the list.

-------- Original message --------
From: John Vaughters via TriEmbed <triembed at triembed.org> 
Date: 1/10/18 9:01 AM (GMT-05:00) 
To: Pete Soper via TriEmbed <triembed at triembed.org> 
Subject: Re: [TriEmbed] Atmega fast startup 




Whether it is a reliable start or not, it is still interesting to find the limits and work from there.

John Vaughters



On Wednesday, January 10, 2018, 8:55:11 AM EST, Pete Soper via TriEmbed <triembed at triembed.org> wrote: 





This was an experiment to see the best case cold start latency. I got it down to five machine instructions plus the internal startup of the on-chip oscillator so Shane and others in the discussion can see the answers to the questions left hanging: how fast the RC-based clock gets going and whether the latency tends to be deterministic. For one chip, one VCC and one temperature a half dozen repetitions suggest it is.
Pete

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