The Big MegaFlashROM SCC+ SD Topic

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By ApolloBoy

Expert (96)

ApolloBoy's picture

07-05-2013, 02:54

I just got my MegaFlashROM in today and it doesn't seem to recognize any MicroSD card that I throw at it. Is this because I have an FS-A1 (which has 128K of VRAM but 64K of main RAM) or is there something wrong with the cart?

By Guillian

Prophet (3473)

Guillian's picture

07-05-2013, 09:20

The cartridge shoul work on your MSX, but on MSX-DOS mode due to RAM.
When you say that it does not recognize any micro SD card, do you mean that it does not recognize it in the boot message or in recovery? Or do you mean you can't read its content from MSX-DOS?
Have you formatted your cards in FAT12 and 16MB partitions?
Here you can find a tutorial about how to do it

By ApolloBoy

Expert (96)

ApolloBoy's picture

07-05-2013, 18:24

Crying

Guillian wrote:

The cartridge shoul work on your MSX, but on MSX-DOS mode due to RAM.
When you say that it does not recognize any micro SD card, do you mean that it does not recognize it in the boot message or in recovery? Or do you mean you can't read its content from MSX-DOS?
Have you formatted your cards in FAT12 and 16MB partitions?
Here you can find a tutorial about how to do it

It's not recognized in recovery mode or in Nextor, and since neither recognizes it there's no way I can properly format it. I'll try formatting it through my computer and see what happens from there.

By Guillian

Prophet (3473)

Guillian's picture

07-05-2013, 19:24

If it is not recognized in the boot message or in recovery (SD Init error?) then it will not work.
That is not a format related problem, but hardware (the card or the micro SD slot)
It is strange, because I test all cartridges twice: after soldering components and after assebling the cartridge case and sticker.

By roadfighter

Champion (426)

roadfighter's picture

07-05-2013, 20:38

Guillian wrote:

About the F700P:
Does it work after pressing RESET?
Does it fail on both slots?
Could you clean the cartridge slots?

I think I've found my sony h700p problem, when I start a cartridge in my sony then everything goes well, I can fiddle with the cartridge and the game, demo therefore continues to run.
But if I hit on my desk then the game, demo will freeze.
I used the flashrom version 1 and started pippols it works but only till i hit the table.
Only strange thing is when i dont do anything why does the scc+sd dont detect my sd in the cartridge Question
I will try and fix my sony-h700p Crazy
@ Apolloboy
Try your msx with a game cartridge, it should start, hit the desk near the msx ofcourse see what happens, not the most sientific way but hey. BA-team

By ApolloBoy

Expert (96)

ApolloBoy's picture

07-05-2013, 21:05

roadfighter wrote:

Try your msx with a game cartridge, it should start, hit the desk near the msx ofcourse see what happens, not the most sientific way but hey. BA-team

It works perfectly fine with games, no desk hitting required Wink

By ApolloBoy

Expert (96)

ApolloBoy's picture

08-05-2013, 03:50

So I just got through trying a few more MicroSD cards and it doesn't work with any of them...

By Guillian

Prophet (3473)

Guillian's picture

14-05-2013, 11:09

I have updated OPFXSD to v1.08. Now it is possible to use any multiROM filename.
By default MULTIROM.OPF will be used (i.e.: OPFXSD /O)

But now you can have different multiROM configuration files:
OPFXSD konami.opf /o
OPFXSD shooters.opf /o

By Creepy

Champion (335)

Creepy's picture

14-05-2013, 12:05

I was wondering: is the diskrom copied to RAM before initialization? When I start a disk game from the Flash cartridge and after that I remove the Flash cartridge, my Turbo R ST refuses to boot and gives me an error about the C drive. Power the machine off, wait a few minutes, and everying works again.

And would is be possible to let mapdrv detect the megaflashrom to simplify usage? Or could more drives be mapped on boot (like the sunrise CF)? I have one SD-flashcart with two partitions and only the first one is mounted. So A is the rom disk, B is the first partition, C & D are the floppies, Just by reading to documentation it is very hard to determine the correct parameters to mapdrv to mount the second partition as C, and the floppy drives on D and E. And even when you have the correct parameters, this changes when the cartridge is inserted in another slot.

But besides that: It works great and fast. Loading is much faster compared to the non-SD version!

By Guillian

Prophet (3473)

Guillian's picture

14-05-2013, 13:08

Creepy wrote:

I was wondering: is the diskrom copied to RAM before initialization? When I start a disk game from the Flash cartridge and after that I remove the Flash cartridge, my Turbo R ST refuses to boot and gives me an error about the C drive. Power the machine off, wait a few minutes, and everying works again.

DiskROM is not copied to RAM.
That is a really weird error (O___o!)
I also have a ST and I can't reproduce it.
Do you have that problem with any DSK?
Do you have any other hardware connected to your MSX?
If you don't remove the cartridge and just press ESC, does it work fine?

Quote:

And would is be possible to let mapdrv detect the megaflashrom to simplify usage? Or could more drives be mapped on boot (like the sunrise CF)? I have one SD-flashcart with two partitions and only the first one is mounted.

That is the way Nextor works. As far as I know, Konamiman will add a configuration file that will let you choose which partitions and drives you want to mount at boot.

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