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Hello i am trying to put 27c322 programmed with street fighter 2 remastered by pyron on a not working shinobi donor cart but i am stucked at rewiring and i am not really understood if eprom should be putted on the left side of cart with eprom pin 1 and 42 to the left. i noticed that on the cart back side pin 32 is connected with pin 11 and they go to pin a11 of the cart.
I don't understand the question. How many pins does the board support? Less than 42?
Also worth mentioning: I would not use a "not-working" board as a donor cart.
it is a 40pin with the shinobi rom not working. i tested it with another 40 pin rom and it work. tomorrow i will take pictures and show you what i am meaning.
ok, I understand now.
pins 1 and 42 will be left hanging and must be bent upward. Also bend up pin 32. These three pins must be connected to A18, A19 and A20 on the cart edge with wire.
My guide explains this a little bit:
https://www.epforums.org/showthread....ash+cart+guide
Yes i know, the guide is very clear and easy to follow but as i can understand the eprom should be placed on the right side of the donor card but for the 27c322 (pin32 is a20) but for 27c160,800 is Byte vpp and for 27c400 pin 31 is byte vpp.On my board pin 31 is connected to pin 21 (VCC) so in order to use the 32mb eprom on my donor i had to cut board pin31 trace and solder eprom pin a20 to cart connector b9. Attachment 72839Quote:
Originally Posted by Jazzmarazz
Attachment 72840
Uh-oh. Looks like the board was originally set up with extra logic to split the address map between ROM and SRAM. Everything looks correct, but the Chip Enable pin on the ROM (pin 11) is probably floating since this would have been an output from the 74-series logic chip you removed. You will need to connect it to the cart edge, it should be B17.
it is already connected. But i think that xgpro swaps back already swapped endians....Quote:
Originally Posted by Jazzmarazz