Search found 6 matches

by Player0
Tue Jun 13, 2006 8:24 pm
Forum: 1990's Gaming
Topic: Overclocking SuperFX
Replies: 72
Views: 127664

I tried hooking the clock pin of the SFX to pin 1 from the SNES which should be a 21mhz clock. The cartridge booted up but the game didnt play the least bit faster, even though I beleive I doubled the clock rate.

The cart wont boot with the pin completely disabled. Actually, after the tiniest bit ...
by Player0
Tue Jun 13, 2006 1:29 pm
Forum: 1990's Gaming
Topic: Overclocking SuperFX
Replies: 72
Views: 127664

Equidistant square waves should be a necessity of a clock gen running at a particular frequency. If the lows werent equidistant, the frequency would be different :)

But can you confirm that a flipflop taking a clock pulse from a crystal is going to divide that original clock pulse in half?

So with ...
by Player0
Tue Jun 13, 2006 11:14 am
Forum: 1990's Gaming
Topic: Overclocking SuperFX
Replies: 72
Views: 127664

PS - If anyone knows better than me and Im wrong, please let me know! I just want to know how all this works and all I can do is guestimate at this point :)

Also, in terms of StarFox itself, I built my cart with a ROM socket so as soon as I order a couple more 27C801-120s and overclock my cart, I ...
by Player0
Tue Jun 13, 2006 11:08 am
Forum: 1990's Gaming
Topic: Overclocking SuperFX
Replies: 72
Views: 127664

The SuperFX chip is different in most of the carts. There are several different minor revisions in the few carts I have recently opened up. Primarily, there is Mario Chip, GSU-1, GSU-2, with GSU-1 being most common. However, it also has many sub revisions.

StarFox itself uses the glop top Mario ...
by Player0
Mon Jun 12, 2006 8:40 pm
Forum: 1990's Gaming
Topic: Overclocking SuperFX
Replies: 72
Views: 127664

Submitting information, or contributing to confusion, I'm not sure which ;)

Ive just spent the past couple hours reading the SuperFX chip patents and trying to determine a basic pinout. No such luck.

I havent actually found any new information, so I have to default to the typical answers others ...
by Player0
Mon Jun 12, 2006 7:11 pm
Forum: 1990's Gaming
Topic: Overclocking SuperFX
Replies: 72
Views: 127664

Hmm, excellent find.

Vortex runs the SFX chip at 10.7Mhz as far as I can tell. The SFX chip runs a multiplier of 0.5x by default, although apparently it can be changed on the fly by software methods. Vortex at least stats up at 10.7mhz.

Which makes me wonder if running a 40Mhz crystal isnt such a ...