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

[Colin O'Flynn]

Hello,

> Does anyone have a guess as to what's happening here?

What is your clock source? Is it internal oscillator - if so how is your power 
rising in the design? Is there a BOD? If there is an internal oscillator, do 
you load the trimming register with a new value?

I ask because it almost sounds like some fuses get misread or something along 
that line, resulting in say a 4 MHz internal osc instead of 2 MHz.

Regards,

 -Colin