Re: [avr-chat] Timer1 Frequency Doubling in ATMEGA128 App

[Matthew MacClary]

On Wed, Mar 09, 2005 at 01:16:49PM -0600, Kevin Neff wrote:
> Depending on which power supply I use, I get the light blinking at 1
> or 2 Hz.  The STK500 supply produces a reliable 1 Hz, but a 12 VDC
> supply through a 7805 5VDC linear regulator produces 2 Hz.  It's
> also interesting to know that if I reset (pull RESET\ low) the uC,
> it goes back to 1 Hz.
> 
> Does anyone have a guess as to what's happening here?

   I would guess that your chip might be reseting for some reason.  I
will sometimes put a special LED sequence at the very start of my code
to make sure that I know every time the chip resets.

-Matt

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