Re: [stella] In the final testing stage (I hope).

Subject: Re: [stella] In the final testing stage (I hope).
From: Bob Colbert <retroware@xxxxxxxxxxxxx>
Date: Thu, 10 Sep 1998 07:41:48 -0500
At 07:06 PM 9/9/98 -0400, you wrote:
>I do have a few questions about how the 2600 itself keeps it's own internal
>time. Can the powersupply of the 2600 affect the speed with wich the 2600
>runs. If you're an a few milliamps shy or a volt or so under or over can
>this cause the CPU's speed to fluctuate? Can RF interference on the poweline
>affect the timing? If you power is 50Hz or 60Hz could that affect the timing.
No, no, no, no!

>Is there a quartz crystal that controls the timing or is it controlled
>with an analogue circuit? 

crystal

>I'm just curious if all the fine tuning adjustments I've made to the
>program are going to react differently on someone else's machine because
>they have a different power supply or what not. I'm also curious as to
>wether the 50Hz power freaquency of european 2600s will affect in some
>subtle way the timing of the machine.

no, you should be o.k., the only thing that will make a difference is the
accuracy of the rating on the crystal that controls the clock of the 6507.
I think they are pretty accurate.

					Bob


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