the root cause of flip-flop charging logic if you insert wall charger

Werner Almesberger werner at
Thu Sep 18 08:15:43 CEST 2008

matt_hsu wrote:
> Do you think this elevator-style-signal is caused by system?

Hmm, 700ms would be amazingly long for contact bounce.

Oh, but what insertion is this ? Wall charger into USB port or wall
charger into mains ? Both cases are relevant and probably look very

Thanks for the pictures !

- Werner

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