Cyberus Wrote:
"Well, what I meant is, how do I go about getting the 28MHz to the connector? It's just a case of taking it off the clock line on the motherboard and soldering a wire to pin 9 of the female connector on the mobo?
Or more importantly, a better question would be:
Is, and why is, the clock signal needed by an accelerator sitting in the CPU fast slot? Surely the accelerator generates its own clock signal?"
---------------------------------------------
Ok well I'm no expert in this because it's been a long time since I looked at an A500 and I've never owned an A2K but basically the accelerator is going to be looking to obtain it's clock from the motherboard for timing purposes. Timing is everything when you start talking digital electronics, and that 28Mhz clock will no doubt ensure that things which are happening on the motherboard tie in with events on the accelerator. Without this synchronisation the accelerator is never going to work.
I have my reservations about this working but as I said I'm no expert when it comes to the A500 and A2K. But if it were possible, you'd think companies would have thought of it already - why make 2 production models of a card when you can make one to suit both? You'd think there must be a reason. Unless of course it was so they could put the two cards in a different price bracket
Is there a 28Mhz clock signal available on the A500 mobo? If so you're going to want to take a tap of it, but be careful where you run the wire because you don't want any Interference generated in it. I don't think you can even look into buffering the clock signal, because the propogation delay involved would then put the clock signal out of sync with the mobo.
Good luck - and keep us informed
BrianH
