AVR-Chat

-----Original Message-----
From: LightYearCS [mailto:lightyearcs@zippnet.net] 
Sent: Sunday, 14 March 2004 10:39 AM
To: AVR-chat@yahoogroups.com
Subject: [AVR-Chat] Oscillator Lock?!?!


Ladies and Gentlemen:

            This is a rumor I heard.  Even a field engineer thinks he
heard of this also.

            It’s said that if you use the same values for each of the
capacitors used in the crystal oscillator circuit that sometimes the
oscillator will not start up and remain in a state of lockup.  Has
anyone else heard of this?


ROFLMAO ok the only time the 2 caps are not equal is when you are tuning
the crystal (look at some old 1802 cpu designs, this was common) BUT 99%
of designs these days use EQUAL caps, when caps are needed (some uC's eg
the AT43USB355E does not have external caps as they are internal to the
uC)

I think someone is talking rubbish.

Regards,

Kat.            

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