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7 Mhz Genesis Signal Runtime

Cheung Tak Wah - Mar 26, 2005

		Cheung Tak Wah		Mar 26, 2005
			Hi, as far as I know the megadrive runs at about 7 MHz, novadays signal runtimes are a big deal, making sure that all the signals arrive at the same point at the processor, due to high speeds of modern processors there is not much space left, so all tracks on the board have to have the same length. I thought it would be a goog idea to extend the genesis slot with a piece of board and a flat ide cable and an isa or genesis slot on the other end, just like an remote port, for my genesis is due to room space limitations stored in a place which is not good accesibble. My question is, how important are those signal runtimes at 7 Mhz and how do I calculate track length tolarances, to calculate if I am handy enough with my tools to not disturb balance and does anyone know about timeouts ? meaning a longer way to the catrigde means a longer signal runtime which could produce a loss of the signal, for the answer possibly arrives outside of the clock frame it should have. Wow, my english is bad, sorry for that, if my blah is to weird, tell me and I try to rewire it Thanks Tak Wah

		Cheung Tak Wah		Mar 31, 2005
			Wrong world again , well thought something like that, no e-technicans in this forum i guess

		lordofduct		Mar 31, 2005
			Maybe you could try posting it in the Dev section... some of the guys in there don't stray out of that area. Actually you should ask for the thread to be moved there by a admin (save space and all)

		Cheung Tak Wah		Apr 1, 2005
			Mhh, good Idea, thanks , I never went into dev Foum becauyse i thought it ment software development

		Mask of Destiny		Apr 1, 2005
			At 7MHz signal propagation times shouldn't be that much of a problem. Signal noise will be more of a problem, but with some extra ground lines and appropriate shielding I would imagine you could probably go at least a couple of feet.

		Cheung Tak Wah		Apr 19, 2005
			so what't do you suggest to shield an IDE like cable?

		it290		Apr 19, 2005
			Wrap it up with aluminum foil.

		fonzievoltonov		Apr 20, 2005
			Ummm, yeah good idea asking here. I was thinking about linking my genesis cartridge slot to the 32x with a 10centimeter IDE cable (2*40). You confirm it will work? Thx a lot Bye Fonzie

		Cheung Tak Wah		Apr 21, 2005
			I think that foil thingie is a good idea And I don't confim anything, for I have no idea if it will, work, but if I have time to do it, i will find out