Re: C65 on Ebay

Den Sun, 5 Nov 2017 20:42:18 +0000 skrev smf <smf@null.net>:
> 
> On 05/11/2017 18:02, Mia Magnusson wrote:
> > Well, you can use a PLL for the system clock oscillator and control
> > the PLL so sync *outputs* from the Amiga is in phase with sync from
> > the signal you genlock onto.
> 
> AFAIK as soon as you switch the external clock to be an input on the 
> video port, it automatically switches hsync/vsync to inputs too. It 
> would be insanely complicated to speed up/slow down the amiga's
> system clock to try to keep it's hsync/vsync in time with another
> source.

Atleast on the oldest Amigas, I.E. A1000 and the first A2000, the
28MHz switch/input stuff is handled by discrete logic and there is no
way for Agnus to see where the 28MHz clock comes from.

Maybe it were changed, but that would break compatibility?
 
> > Maybe sometime in a distant future I might try that :)
> 
> I'm certainly interested in seeing that.

:)

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