Cave Hardware: any difference between standard & Black-Label

[MintyTheCat]

Hello all,

I have an ibara PCB that I bought back in 2010/early 2011 - I forget.

I noted that ibara kuro is rarer and I read somewhere that only 200 copies were released.

My question: are there any hardware differences between a standard PCB and the kuro editions? Part of me would just think it was some data on an EPROM/Flash/'other memory' and nothing more.

Cheers,

Minty.

[_rm_]

Exact same hardware with different content.

That's why it will be a problem if someday, someone, discovers how to access and change the data on the PCB's

[MintyTheCat]

Exact same hardware with different content.

That's why it will be a problem if someday, someone, discovers how to access and change the data on the PCB's

'problem' here I would take to mean 'subjective'

[Muchi Muchi Spork]

Hello all,

I have an ibara PCB that I bought back in 2010/early 2011 - I forget.

I noted that ibara kuro is rarer and I read somewhere that only 200 copies were released.

My question: are there any hardware differences between a standard PCB and the kuro editions? Part of me would just think it was some data on an EPROM/Flash/'other memory' and nothing more.

Cheers,

Minty.

FPGA is different I think.

[MintyTheCat]

Hello all,

I have an ibara PCB that I bought back in 2010/early 2011 - I forget.

I noted that ibara kuro is rarer and I read somewhere that only 200 copies were released.

My question: are there any hardware differences between a standard PCB and the kuro editions? Part of me would just think it was some data on an EPROM/Flash/'other memory' and nothing more.

Cheers,

Minty.

FPGA is different I think.

That may be less of an issue. If it is the same manufacturer, same pin count and the number of LUTs/etc is the same or can be accommodated on both chips then there would be no trouble. I will look at which FPGA and the other ICs are on both boards.

Thanks.

[Muchi Muchi Spork]

No I mean Cave's FPGA code may have changed between them. Whether it would cause some issue is another question.

[MintyTheCat]

No I mean Cave's FPGA code may have changed between them. Whether it would cause some issue is another question.

Ah, in that case the Boot-Loader will merely provide a different Bitstream and this assumes that the Bitstream is not some how encrypted or what not.
I would doubt that they used a different Bitstream but you never know.

Usually one would expect to find on an FPGA board the FPGA IC and a Boot-Loader. At power-on the Boot-Loader passes the Bitstream to the FPGA, the FPGA gets its Logic then is ready. There may be some checking done either by the Boot-Loader or the FPGA itself.

[el chuddo]

The last discussion I read about this ended with everyone agreeing that the 2 sound chips that these cv1000 boards had on them were of 2 varieties iirc. But, if that is the case, maybe there can be 2 different main boards with user/programmer(unofficially) selected games within the games supported by each of the 2 sound chip styles. I think something about Kuros coming from espgaluda 2 board style., and then Ibara comes from an old Mushi board in most cases but somehow vanilla Ibara can get zapped onto the Galuda style??? Also, that when an Kuro IS zapped onto an Ibara by a 2nd hand user..the music is wrong or something.. But if you desolder the chips and put them on you can do it. Pretty labor-intensive and high risk of ruining games. Hopefully the brains chime in. I'm green about hardware knowledge. Sorry for the incomplete post.

[MintyTheCat]

Thanks for the info, El Chuddo.

[xMetalliCx]

The last discussion I read about this ended with everyone agreeing that the 2 sound chips that these cv1000 boards had on them were of 2 varieties iirc.

wat ? this is bullshit, they all have the same sound chip, more over - all CV1000B boards is the same. only U13 (Altera EPM7032) internal firmware can be different
not cheched this in person but I think its not game-specific, so I guess any CV1kB pcb can be reprogrammed to any other CV1kB game. but not to CV1kD - D-boards have 2x main RAM and program FlashROM compared to B-boards.