Please advise

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By Alexey

Guardian (1930)

Alexey's picture

31-01-2019, 19:36

Carnivore2 offers 1mb of RAM with mapper. This extends your machine's RAM. Also there is 720kb of pseudo MegaRAM to load games. By default 8mb FlashROM is used to store game ROMs, you can run any of them from the menu. With SofaRun writing games into cartridge is easier.

You will need to put Nextor + MSX-DOS 2 files onto CF card. Then you can run command line tools, listen to the music or run SofaRun. I use 4gb cards with just one partition - that is enough for everything.

Try to format the corrupted card with the low level formatting tool. I got my card fixed with it.

By sdsnatcher73

Champion (288)

sdsnatcher73's picture

31-01-2019, 20:49

Well in GR8NET's defence, you can set the default mapper in such a way that it will boot Nextor just like MFR and C2. SofaRun will then work in the same way as on the other 2 devices. GR8NET has PSG, SCC, MSX-Music and MSX-Audio functionality and 3.5mm stereo output (which sounds awesome).

It can be a bit overwhelming at first but is definitely not just for programmers. And it is the only device that is fully updatable through the MSX (no FPGA blaster needed)...

By Grauw

Enlighted (7843)

Grauw's picture

31-01-2019, 21:44

Gloriou wrote:

Quick question here...
will be am internal 512 ram, enough for something, i mean some rom loading or dsk images?

Usually regular RAM isn’t very suitable for running games. This has to do with how the “mapper” works, a mechanism to access >64K memory. RAM memory mappers work differently than ROM mappers used in game cartridges. This is also the reason why you had trouble running games bigger than 16kB, even though your computers have 128K RAM.

However both MFR SD and Carnivore2 load MegaROM games on FlashROM with a ROM mapper that is appropriate for the games, so that way they are able to run them properly. And as Alexey mentioned, the Carnivore2 also supports MegaRAM, this is RAM but with a mapper type suitable for ROM games.

By Gloriou

Expert (106)

Gloriou's picture

01-02-2019, 09:58

Alexey wrote:

Carnivore2 offers 1mb of RAM with mapper. This extends your machine's RAM. Also there is 720kb of pseudo MegaRAM to load games. By default 8mb FlashROM is used to store game ROMs, you can run any of them from the menu. With SofaRun writing games into cartridge is easier.

You will need to put Nextor + MSX-DOS 2 files onto CF card. Then you can run command line tools, listen to the music or run SofaRun. I use 4gb cards with just one partition - that is enough for everything.

Try to format the corrupted card with the low level formatting tool. I got my card fixed with it.

Since Gr8net looks very advanced to me, I think that I will just stick will the Carnivore2.
The card was forced in the wrong side, so it is not detected anymore Tongue

By Gloriou

Expert (106)

Gloriou's picture

01-02-2019, 10:04

sdsnatcher73 wrote:

Well in GR8NET's defence, you can set the default mapper in such a way that it will boot Nextor just like MFR and C2. SofaRun will then work in the same way as on the other 2 devices. GR8NET has PSG, SCC, MSX-Music and MSX-Audio functionality and 3.5mm stereo output (which sounds awesome).

It can be a bit overwhelming at first but is definitely not just for programmers. And it is the only device that is fully updatable through the MSX (no FPGA blaster needed)...

I may order it later, I really dont want to feel frustrated although you guys are awesome and very helpful. But sometimes you get tired of trying and then hit by a blocked road. Smile

By Gloriou

Expert (106)

Gloriou's picture

01-02-2019, 10:14

Hannibal

Grauw wrote:
Gloriou wrote:

Quick question here...
will be am internal 512 ram, enough for something, i mean some rom loading or dsk images?

Usually regular RAM isn’t very suitable for running games. This has to do with how the “mapper” works, a mechanism to access >64K memory. RAM memory mappers work differently than ROM mappers used in game cartridges. This is also the reason why you had trouble running games bigger than 16kB, even though your computers have 128K RAM.

However both MFR SD and Carnivore2 load MegaROM games on FlashROM with a ROM mapper that is appropriate for the games, so that way they are able to run them properly. And as Alexey mentioned, the Carnivore2 also supports MegaRAM, this is RAM but with a mapper type suitable for ROM games.

Oh really,
I was hoping that I could just buy and upgraded MSX2+, clean fully working MSX and also to run games and have fun.
The problem in my MSXes is that they were left loooooong time on the shelf, imagine the work that the need.......... Keyboard not working, dusty, floppy not working just a mess.
Yesterday I fixed the floppy of the AX350. I was told by my brother it is not working 25+ years ago Big smile

By o.geerdink

Hero (525)

o.geerdink's picture

01-02-2019, 10:40

I rarely have not working keyboards on msx unless something was on the keyboard. In that case the springs may be compressed permanently that's an easy fix!

Ofcourse the keyboard can have other damage if something rested on it for 20 years... but the electronic parts almost never stop working in my experience. Im really curious to see the inside parts of your msx keyboards that fail maybe someone fixed such issue and can advise you.

Diskdrive's are common indeed!

By Alexey

Guardian (1930)

Alexey's picture

01-02-2019, 11:55

Yes, disk drives mostly have rubber belt problems that are easily fixable. On the mainboards the electrolytic capacitors or batteries may leak damaging everything around them. Some very old and badly made ICs may have cracks in their casing and that breaks them. I've seen a few EPROMs that lost data due to aging. There were even cases when certain OTP chips restored their internal wires that were supposed to be destroyed during their programming. I once got a machine that had a mouse's nest on the mainboard. Took a lot of patience to clean up the mess.

By Gloriou

Expert (106)

Gloriou's picture

01-02-2019, 13:22

o.geerdink wrote:

I rarely have not working keyboards on msx unless something was on the keyboard. In that case the springs may be compressed permanently that's an easy fix!

Ofcourse the keyboard can have other damage if something rested on it for 20 years... but the electronic parts almost never stop working in my experience. Im really curious to see the inside parts of your msx keyboards that fail maybe someone fixed such issue and can advise you.

Diskdrive's are common indeed!

As you mentioned there was some dirt, the metal casing of the keyboard has some print of the plastic. the funny thing is that both of AX370 were having some keys not working it seems that some keys aligned together had to clean the port and the insert. also both of the AX370 has problem in the Joypad connector..... somebody has any idea?

About the AX350 it wasn't a belt, I think it looks like a PC drive or something it just needed some lubrication and some ticking while pressing R (during file check) to force it into the lubricated rail.

By Grauw

Enlighted (7843)

Grauw's picture

01-02-2019, 13:24

Gloriou wrote:

I was hoping that I could just buy and upgraded MSX2+, clean fully working MSX and also to run games and have fun.

Well, floppy games and cassette games work fine in RAM of course, but ROM games are meant to run from ROM cartridges and so you need special hardware to emulate them if you want to run copies. Otherwise it would also have been really easy to copy games, so it was also a sort of copy protection.

So if you want to run ROM games as well have mass storage and sound chips and a memory upgrade, those all-in-one cartridges are a recommended purchase.

Gloriou wrote:

The problem in my MSXes is that they were left loooooong time on the shelf, imagine the work that the need.......... Keyboard not working, dusty, floppy not working just a mess.
Yesterday I fixed the floppy of the AX350. I was told by my brother it is not working 25+ years ago Big smile

Ah I see, well that could be another reason to get a new MSX of course. Though I think it would be pretty nice if you could get them to work properly again, give them a second life! Smile

Earlier I just wanted to point out that those AX machines actually have pretty good specs, and that in order to run ROM games you need something else.

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