On Sun, 01 Jun 2008 22:44:37 +0100, you wrote:

>
>Hello,
>is it normal that an oscilloscope probe put on a oscillating xtal
>doesn't stop it from oscillating (yes, it is normal, it has got 1M
>impedance and few pF after all).
>
>BUT
>
>if the xtal was stopped (the chip it's connected to was in power
>down mode) and I power it up WHILE the oscilloscope probe touches
>the xtal terminal, the oscillator will never start up. Now, is THIS
>normal?
>
>It seems a xtal has a very hard time starting up, but when started,
>it will work robustly. I didn't know this, I haven't read it anywhere
>in the past, and am wondering if it's the side effect of some other
>problem I haven't identified.
>
>Did you experience anything similar too?
>
>Greets,
>Mario

Pretty normal - you should use a x100 probe for poking around xtals if you want to see what's
actually going on, even more so for 32K xtals. 



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