MegaFlashRom ripoffs?

Page 10/11
3 | 4 | 5 | 6 | 7 | 8 | 9 | | 11

By mars2000you

Enlighted (5489)

mars2000you's picture

03-08-2018, 13:55

I can try, but I guess details about non-Pazos variations need to be added later.

By mars2000you

Enlighted (5489)

mars2000you's picture

03-08-2018, 14:10

@JohnHassink: take a look at the general definition.

I will now prepare the variations section.

By JohnHassink

Ambassador (5400)

JohnHassink's picture

03-08-2018, 14:24

@mars2000you:
Providing some crooked English, I think that's just about all of the relevant info, right there! Smile

By mars2000you

Enlighted (5489)

mars2000you's picture

03-08-2018, 14:26

JohnHassink wrote:

@mars2000you:
Providing some crooked English, I think that's just about all of the relevant info, right there! Smile

Thanks! You can now improve my text. Details about all the variations need to be on specific pages.

By mars2000you

Enlighted (5489)

mars2000you's picture

03-08-2018, 14:38

A question for Manuel Pazos.

The document on http://lists.stack.nl/pipermail/msx/2003-February/000698.html mentions 4 variations. Apparently, the two first variations are missing on https://www.msx.org/wiki/MSX_Cartridge_Shop_MegaFlashROM. Should I add them or not?

Also for the extended basic version (1024kB), both ASCII8 and ASCII16 mappers are mentioned while the Wiki page mentions only the ASCII8 mapper. Should I correct that?

By Guillian

Prophet (3230)

Guillian's picture

03-08-2018, 18:25

The first generation of MegaFlashROM was:
- Basic model: 512K FlashROM and mappers ASCII8/ASCII16
- SRAM model: 512K FlashROM, 2/8KB SRAM and mappers ASCII8/ASCII16
- SCC model: 512K FlashROM, SCC and Konami SCC mapper
- Extended model: 1024K FlashROM and mappers ASCII8/ASCII16
There were also a few units produced of the SCC model with 1024K FlashROM (2 banks of 512K)

1.5 Generation:
Similar to the previous SCC model, but using a custom PCB and brand new SCC chips and DACs.

Second generation:
- 1024K FlashROM model with ASCII8 mapper

Third generation:
- MegaFlashROM SCC+

Fourth generation:
- MegaFlashROM SCC+ SD

About "Other productions", probably they are just clones based on the original MegaFlashROM SCC, that use/used OPF tool for loading the ROMs.

By mars2000you

Enlighted (5489)

mars2000you's picture

03-08-2018, 18:33

Thanks, Guilian, for all these infos. I will update the Wiki page! Wink

By l_oliveira

Hero (520)

l_oliveira's picture

03-08-2018, 19:36

Documenting the "SD Mapper" and "JIPE's Konami4 MegaROM" devices would also help reduce the confusion. Info about them can be obtained at the links I posted on a previous post.

By mars2000you

Enlighted (5489)

mars2000you's picture

03-08-2018, 19:51

l_oliveira wrote:

Documenting the "SD Mapper" and "JIPE's Konami4 MegaROM" devices would also help reduce the confusion. Info about them can be obtained at the links I posted on a previous post.

I guess it's probably similar (and different at the same time) to what is explained on this DIY page: https://www.msx.org/wiki/Making_A_MegaFlashROM_SCC_of_512kB - Maybe gdx could take a look at these pages and add 2 new Wiki pages ....

Quote:

Flash cartridge is based on JIPE's Konami4 megarom mapper design: http://msxvillage.fr/forum/topic.php?id=1001#m18640

SD cartridge is the SD Mapper design from Fabio Belavenuto, modified by MetalGear2 (http://msxvillage.fr/forum/topic.php?id=3113#m72703)

By sd_snatcher

Prophet (3032)

sd_snatcher's picture

03-08-2018, 20:43

mars2000you wrote:

I guess it's probably similar (and different at the same time) to what is explained on this DIY page: https://www.msx.org/wiki/Making_A_MegaFlashROM_SCC_of_512kB - Maybe gdx could take a look at these pages and add 2 new Wiki pages ....

To avoid confusion with Manuel Pazos' original cartridge, it's probably a good idea to rename this article to:

"Making a Homebrew MegaFlashROM SCC 512kB"

Page 10/11
3 | 4 | 5 | 6 | 7 | 8 | 9 | | 11