Victor Trucco announced MSX-SM

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By alexito

Hero (555)

Аватар пользователя alexito

26-06-2019, 21:11

@iamweasel2 said: Any ideas of what to do with the extra space in the FPGA of this machine?

Franky VDP or Better yet GFX9000 with Tiles&Sprites X/Y Flipping capable engine.

By Parn

Champion (420)

Аватар пользователя Parn

26-06-2019, 23:36

As an amateur musician myself, I'd love having YM2151 and SN76489 for full Mega Drive music compatibility (by way of Grauw's VGMPlay). I've listened to an FPGA implementation of YM2151 and I thought it sounded good. SN76489 should be very simple (and it could have an additional flag to make it work like the Sega variation).

By Pencioner

Paladin (955)

Аватар пользователя Pencioner

26-06-2019, 23:49

I would vote for audio chips too. But only if this new machine solved the audio noise problems of OCM and Zemmix Neo Smile otherwise it makes much less sense. Actually, the price of it is quite high, and noisy audio will for sure withdraw my interest (otherwise i would like to have one, later, having low budget at the moment unfortunately)

By KdL

Paragon (1231)

Аватар пользователя KdL

27-06-2019, 00:31

Pencioner wrote:

I would vote for audio chips too. But only if this new machine solved the audio noise problems of OCM and Zemmix Neo Smile otherwise it makes much less sense. Actually, the price of it is quite high, and noisy audio will for sure withdraw my interest (otherwise i would like to have one, later, having low budget at the moment unfortunately)

Victor wrote to me of having changed several things: no resistor arrays were used for the audio signals but the Xilinx delta-sigma approach. Several hardware issues have been fixed.

By Pencioner

Paladin (955)

Аватар пользователя Pencioner

27-06-2019, 00:36

if that delta-sigma is the same as used in MFR (which also uses Xilinx, but i'm not aware of the details, just a guess) - that should be a great sound then! if so, i'm interested of course Big smile damn, should raise some money... think, think...

By KdL

Paragon (1231)

Аватар пользователя KdL

27-06-2019, 00:37

iamweasel2 wrote:

Any ideas of what to do with the extra space in the FPGA of this machine? Smile

More than ideas, some volunteers would be needed to make the missing components! Nishi

By KdL

Paragon (1231)

Аватар пользователя KdL

27-06-2019, 00:40

Pencioner wrote:

if that delta-sigma is the same as used in MFR (which also uses Xilinx, but i'm not aware of the details, just a guess) - that should be a great sound then! if so, i'm interested of course Big smile damn, should raise some money... think, think...

Until we have a chance to test this pcb, we can't know exactly.

By ducasp

Master (154)

Аватар пользователя ducasp

27-06-2019, 03:18

Pencioner wrote:

if that delta-sigma is the same as used in MFR (which also uses Xilinx, but i'm not aware of the details, just a guess) - that should be a great sound then! if so, i'm interested of course Big smile damn, should raise some money... think, think...

I can't think of anything sounding better than HDMI, digitally generated audio being carried over a digital connection.... Can it get any better? Wink

By ducasp

Master (154)

Аватар пользователя ducasp

27-06-2019, 03:34

KdL wrote:
iamweasel2 wrote:

Any ideas of what to do with the extra space in the FPGA of this machine? Smile

More than ideas, some volunteers would be needed to make the missing components! Nishi

That's for sure... I've developed the I/O based Uart that connects the ESP-01 to the MSX bus based on some suggestions and with some help from Victor, which later has resulted in the UNAPI ram driver for it (still in the finishing touches, I've got the hang on creating a custom firmware for the ESP module and perhaps I'll resort to implementing most of UNAPI functionality running on the ESP8266 processor, this has boosted TFTP transfer speed using Konamiman tftp from 7-8KB/s to 13-14KB/s, so I've been spending most of my free time on developing the ESP8266 Unapi firmware as it seems to make more sense than using ESP8266 AT Firmware that requires quite a few processing time from z80 to implement protocol and adapt stuff). The FPGA code is available so anyone can toy around and for sure good stuff will be merged back. Smile

By KdL

Paragon (1231)

Аватар пользователя KdL

27-06-2019, 09:48

I think it will be a masterpiece! Running Naked in a Field of Flowers

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