the Goat
Grand Master
I thought key injection was required for the multi?
DARKSOFT What Donor Board to use for the CPS1 Multi
- Thread starter twistedsymphony
- Start date
wouldn't you just need to remove the wire mod?
Kavas
Champion
Your still making a fpga solution right? I'm not even keeping my eyes peeled for c boards because I thought I'd be fine.
You yes, users with little soldering knowledge,would prefer to avoid that.
I am, but I believe that the kit will be release using regular B-21 first.
Kavas
Champion
Yikes, if it's anything like the Sega multi I'd be waiting up to a year or more for version 2. Better start looking into the b21 
I suspect it will be more like the CPS2 multi, where we got it without the key writing functionality to start, and then it was a firmware update to include that functionality later.
if you get a battery backed C-Board it will work in both scenarios.
the wire is part of the de-suicide mode.
it doesn't have one, and it's not needed as the multi's B-board will have the Kick connector.
hoagtech
Enlightened
One more for ya.
If I bought the c board for WW. Would it be compatible for the multi?
Bonus. Would it be Q sound compatible with the proper c board as well?
Should I give up on the idea that WW will be a donor at all?
If I bought the c board for WW. Would it be compatible for the multi?
Bonus. Would it be Q sound compatible with the proper c board as well?
Should I give up on the idea that WW will be a donor at all?
NO
if the chip on the C-Board does not say "B-21" then it is i not compatible PERIOD.
if the chip DOES say B-21 then it is compatible; with everything.
The List of games that have a B-21 chip are all in the first post.
Whether or not it supports key re-writing depends on the rest of the C-Board.
Q-Sound has nothing to do with the C-Board. but FWIW all Q-Sound CPS1 games use a B-21 Chip from the factory.
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THX
so is it good? Can I remove the wire? Last thing can I update the multi with the fpga to replace the B21?
Do not panic buy CPS-1 things like it's toilet paper during a Pandemic. You might end up with too many B21's and not enough bums to wipe.
I would not have posted them if they weren't good for use with the multi.
In their current form they will not do key-re-writing, which means you will not be able to use original/protected ROMs. They will only work with patched ROMs.
this is a great option for someone who has a CPS1 board but does not have a B-21 C-Board (like @hoagtech , he could use one of these plus the A-Board from his World Warrior PCB to make a good donor set for the multi)
if you want to un-do the de-suicide mod you will need to repair 2 traces and repair 2 cut pins on the B-21 chip in addition to removing the wire. it would require some skill to do.
I don't have an answer to that question.
THX
Can we hope a firmware update for original/protected ROMs like on CPS2?twistedsymphony said:
if it's necessary I know one guy can do it for me. Is it?twistedsymphony said:
If I good understanding I must have one for the multi, if it's working I dont see the problem....
we don't know the answer to that question yet.
I don't know, you tell me. it's based on your personal preference.
You've answered your own question and justified its purchase then...
PascalP
Legendary
ordered one from Sheep as well, don't want to salvage a C board from my working OEM stacks, plan to keep those intact 