list of interested third batch MSX Zemmix Neo:

Thanks for the datasheet.
With FM do you intend opll-fm pac or other?
Eseram, megaram, mapper ram: more wiki?
I see this is all on a chip: is impossible to add also the msx.music emulation with 256k of sampleram and the opl4 ekulation? in that case the 2 slots available would be very sufficient for many other expansions.
Thsnks guys for your explanation

Yeah it doesnt help that their is a MSX-Audio cartridge out there called Philips Music Module. One would assume a Music Module on the MSX should contain MSX-Music

If you add SFG-05 to a machine with internal or external MSX-MUSIC chip, you need a specific poke to intialize the SFG chip (CALL MUSIC alone will always initialize the MSX-MUSIC chip).

To initialize the SFG chip on these machines : POKE & HFCD2, 0 : CALL MUSIC

I dont think a msx audio or moonsound FPGA implementation exists yet, though I might be wrong.

I suppose you can just buy the zemmix now and update it with a new firmware without the eseram but WITH moonsound/msx audio IF someone writes it later (or maybe you can write it yourself I dont know if the used FPGA has room for both msxaudio and opl4/moonsound, probably not. Also dont know if the megaflashrom even works on zemmix/1chipMSX.

In my opinion its easier to just buy this zemmix neo and get a moonsound+msx audio cartridge.

MegaFlashROM SCC+ SD works fine in the 1chipMSX / Zemmix Neo, however, there is not much use for it other than transferring data between MSX-es. As you noticed, the feature list is nearly identical. I see the MegaFlashROM SCC+ SD as a "1chipMSX upgrade" for regular MSX computers .

One thing worth mentioning, the Zemmix Neo supports normal SD cards of max 4 GB, while the MegaFlashROM SCC+ SD supports microSD cards of up to 32 GB (SDHC) (not sure if SDXC is supported). To be able to use the same SD card on both, I bought a couple of non-SDHC 4 GB microSD cards, I can insert them in the 1chipMSX with the little microSD->SD adapter that they come with.

I doubt the Zemmix Neo specs will change that much, because this is based on the 1chipMSX source project. A lot of modifications would be needed to have those changes, and I doubt there’ll be much interest in a 1chipMSX without all those functions. In the meanwhile, you’ll lose support for KdL’s firmware updates. Rather than changing the 1chipMSX specs, as Syn said, it seems more logical to me to get a MoonSound cartridge. That way you’ll also get the best sound quality.