MegaFlashROM SCC+ SD + 512K RAM

Very cool. I have the "MegaFlashROM SCC+ SD with 2 slots" so if I send mine back for 512k Ram upgrade, it's 50€? Where do I select the option for the upgrade? It doesn't show on their website order page. Thanks.

is the RAM expansion is available at the same time of the ROM mapper ?
In other words , is it possible to code a game ROM that used 512ko of RAM with this cartridge ?

Where will the fun ever end

(Yes, I watch Myth Busters)

It should be possible. Let's say we insert cartridge in SLOT 1. ROM will be in SLOT 1-0 and mapped RAM let's say in SLOT 1-3.

But I have another question... I recently experience problem when using Playsoniq with Turbo-R that already have memory mapper. Does anybody know if it is possible to work with 2 memory mappers in one MSX computer?

This is really great stuff! I am definitely gonna order one once I fix my MSX.

Small question, not that I would really need it, but would it be easy to upgrade the mapper to say.. 4MB?

well for one, imagine a japanese msx2(+), those usually have 64KB internal ram by default. Not all software can run with only 64kb, there is quite some software that needs 128kb or 256kb to run. So this is perfect for owners of those machines.

The main problem is, with any japanese MSX computer (64kb RAM), you can't boot the megaflash in DOS2 mode, only DOS1. So, no folders, no multimente, and no fat16, just fat12 and also a limited number of partitions. So, to get the most of the megaflash, if you, like me, have an 64kb RAM computer, you'll need the upgrade. I got it for my XDJ from Manuel and it's a blast, beautiful work as usual.

JESUS christ !!!!
Do i need to buy another produkt from pazos ?!!??!!

Thanks for the clarification on how DOS handles mappers. But I am trying to do page changes myself from ASM code using FC/FD/FE/FF ports. When my program getting control 2 top pages attached to internal Turbo-R mapper and 2 bottom to Playsoniq mapper. So, my question is, what is happening when I write value to lets say port FEh? Does it change pages in both mappers or only in one of them?

@Guillian: I have another idea. I think there is one more feature that separates current version from the ultimate solution - possibility to use 512KB of RAM with SCC mapper so Snatcher & SD Snatcher can be played.

Also I noticed that the latest version of OPFXSD do not support older flash cartridges and it is impossible to download them from msxcartridgeshop.com. So, my question is, is it possible to have one program to use with all available flash cartridges (preferably) or at least add possibility to download OPF/OPFX from your website?

@max: I had the same idea, but due to how the RAM is implemented in the cartridge it is not possible to do it.
About OPF and OPFX. The have been always in msxcartridgeshop.com
OPF and OPFX

Hehehe, you too?

You can do it if your computer has 128KB or 256KB.
If you don't have enough RAM, you can't do it. SD card is just a massive storage device. It is not RAM.

It will give 512K + 64K RAM.
So it can load MSX-DOS 2/Nextor and can use FAT16, 4GB partitions, folders...
With only 64K RAM you can't load MSX-DOS 2, only MSX-DOS. So you must use FAT12, partitions up to 16MB, no folders...

Maybe I have some misunderstanding about the MegaFlashROM and its SD.
I have Japanese MSX-1 with 64k , with this machine I can run real cartridge which contain a Rom program ( or game ) its size 512k or over.
My question can I load one of those file (Rom over 512k) within the SD card and run it by the MegaFlashROM.
Thank you.

Hi Guillian.. is it possible, (if i send my MegaFlashRom for update to 512) to do some modication on the hardware to get it working on a 7 mhz MSX where the slot is also running on 7 mhz ??

Hi Guillian, Maybe the cartrigde only works on a 7 Mhz MSX where the slot is running on 3.5 mhz ?
Maybe it is not working when the MSX is on 7 Mhz and the slot is also running on 7 Mhz (like in my case.)
(I know it's not the MSX standard )

I was just wondering if it easy to do the modification on the cartridge so that it is working in my situation also.
... Maybe if i send my device for the memory update... you can check if it works on your 7 Mhz system...?

Is anything of the architecture the same as with KUC? KUC does crash with a 7MHz mod as well...

Hi Guillian. Thanks for the comment.. it could be that maybe there is something wrong with the cartridge .. it would be very nice if you can check it on your 7 Mhz MSX when i send my cartridge to you .

btw: It's the only cartridge that's not working with my 7 Mhz kit/MSX setup. All others, that i own, like, moonsound, gfx9000, Sunrise IDE, SCSI bert interface, Supersoniqs(Sega+SCC,RAM), 1024 Ram , Slot Expander, MSX audio, MP3 player, konami games, Denyonet, megarom flash, Soniq etc. (new games) are working al fine in 7 Mhz mode on my setup.

What a cool device ! .. the KUC

Again very impressive new HW Guillian!

I want one of those!

YES YES YES YES YES
I'll buy it.
I immagine it would have stereo output!!
I don't understand a thing: I put onto the SD two MEGAROM Files.
I insert the cartridge and at the boot my MSX tryes to execut e rom: which one?
Is inside the cart a menù to choose the file you want from the SD?
I'i appreciate a YOUTUBE video as tutorial about the use of this Megarom

ciao giuseve, il funzionamento è il seguente: salvi le rom nella memoria sd; la cartuccia ha incorporata la shell MultiMente, che riconosce le estensioni dei file; quando con i cursori e barra spazio scegli una rom o un dsk, in automatico il file viene flashato nella flashrom interna e viene riavviato l'MSX; al successivo riavvio parte la rom (se premi esc all'avvio, ritorni al multimente).

ciao giuseve, si hai capito bene. Puoi espandere il tuo MSX alla grande anche solo con la cartuccia normale senza RAM. La RAM serve per questo: se hai dei programmi caricati da floppy che possono richiedere piu RAM; se usi la cartuccia su MSX1 puoi avere il dos2 che gestisce sottodirectory, partizioni fino a 4GB e tutti i programmi che richiedono dos2 o che controllano la presenza di "memory mapper" (altrimenti la versione senza RAM su MSX1 non ti gestisce sottodirectory e gestisce fino a 16MB, comunque una gran cosa rispetto ai floppy). Ovviamente in tutti i casi vale questo: rom e dsk possono partire dalla flashrom, però i dsk sono piu delicati da gestire e qualcuno non parte.

I've just received the 512K version with 2x SD. Not sure why I chose the 2x SD version, because 1 SD is more than enough. Installation is quick and easy when you follow the tutorial. If you have a Philips NMS-8250/55/80 please tell Manual when ordering. Some sound fix has to be done on the card in that case.

To boot MSX Mania disk images I had to hold CTRL + D (not DELETE) to free up memory and start the disk menu. Not sure if this is an MSX feature or (undocumented afaik) MegaFlashRom feature.

Software could be better by providing menu options for easier swapping to other partitions. To work around I created batch files on the 1st partition, those batchfiles each swap to a different partition with the MAPDRV DOS command. Now I only need to change to B: after booting, then select the correct batchfile.

Another tip: I had problems with partitions greater than 2GBs, not on the MSX but when mounting on my Mac. Also note that another limit with FAT16 is that you can only store 512 files per directory.

Thanks for the info.

I finally found the section in the manual. On my configuration (NMS 8250 with two drive and MegaFlashRom 512K SCC+ SD with 2 SD's but only 1 inserted in slot 1) I only see A: and B: mapped. D-H are inaccessible. My SD is a 2GB with 20x 100MB partitions.

The MegaFlashRom is delivered with MultiMente (MM). It would be nice if MM could be extended to show partitions and map them when selected (maybe with the help of batch files).

Mr Pazos, I soppouse there is RAM enough for running Trilotracker, isn't it?

Just got mine upgraded to 512 KB, working like a charm. Superb work Pazos!

It is: OPFXSD ROMDISK /ID
(I know this is just a typo)

I just tried to reproduce your steps (erase ROM disk, copy its files to SD card, and then rewrite ROM disk from SD card) It worked.

About recovery files. They must be copied into an empty SD card once a time. You cant copy RECOVERY.DAT, RECOVERYD.DAT and then erase RECOVERY.DAT
You must erase/format your card before copying a recovery kernel.

That's right. It should be in that way. No problems there.
What i said was:

and

So if you insert two SD cards, they will be mounted at boot time.
If you want to mount other partitions (i.e.: E-H) you must mount them yourself using MAPDRV.
I.e.: MAPDRV E: 2-0 2 1-3
(mount in E: primary partition 2 of SD slot 1 using SD interface in primary slot 1)

Thanks! You are welcome

Perhaps it is better to continue in The Big MegaFlashROM SCC+ SD topic

OK, please tell me you're not kidding. If it would be true I will buy one hoping it would be not so expensive.
When do you think it would be ready?
Are you also planning to have a MegaFlashROM SCC+SD+xxxK+MSX AUDIO+V9958 ??? It would be the final Cart for MSX !!.

Why don't you plan cheaper versions with "only" 128K or 256K?
Sincerely I'd prefer a 128K RAM with MSX Audio to a 512K without it. I think that my MSX with 128K + 128K would be great for almost all kind of use.

Regards

Also received my MegaFlashROM SCC+ SD with 512kB! Well done!

Getting tempted back to MSX with a new Megaflash SCC
However, when we we have a version with MSX audio on it? Is it in the pipeline or is it just a rumour?
Maybe just getting a 128k MSX2, no point in a TurboR because i hardly have any software for it, be nice to play some old games on a real MSX instead of BlueMSX

It is just a rumour.

Hi dear msx fans. Is there a way to copy the content of a disk image on the sdcard to a directory on the sdcard without using a disksrive?

For Load classic roms for msx and improved roms. Upload .dsk and .cas files, etc. etc. What they all do! The carnivore2 seems to have better features than the MFR, but I was told that despite the updates it still has compatibility problems with some software. Is it there ??

The MFR is my first choice in MSXing.