What I think an MSX 3 Should be ? | MSX Resource Center (Страница 19/24)

By l_oliveira

Hero (534)

21-11-2015, 18:40

tvalenca wrote:

megatron wrote:

Z80 CPU (switchable up to 28.64MHz) Overclocking a Z84C0020VEC/PEC

where did you find this 28.64 number? Seriously, I'm curious!

3.579545Mhz(NTSC carrier) x8 = 28.63636Mhz.

I believe that's where he got the number from. That's the clock that drives the R800 CPU externally. It gets divided by 4 and then 7.15909Mhz drives the R800 processor core.

By tvalenca

Paladin (747)

22-11-2015, 15:38

l_oliveira wrote:

3.579545Mhz(NTSC carrier) x8 = 28.63636Mhz.

I believe that's where he got the number from. That's the clock that drives the R800 CPU externally. It gets divided by 4 and then 7.15909Mhz drives the R800 processor core.

Oh, that makes sense!

By anonymous

incognito ergo sum (116)

23-11-2015, 03:31

megatron wrote:

I saw a better spec:

Possibly a Better Specification (maybe) would be ??:

Z80 CPU (switchable up to 28.64MHz) Overclocking a Z84C0020VEC/PEC
512K SRAM Min
256K EPROM
Z80 CTC, SIO, PIO
V9990 VDP with V9958 Superimposed on top using an analogue switching/synchronizing circuit thus the Backplane graphics of a V9990 with the V9958 on top 100% compatible with MSX standard givivng TV output for PAL/NTSC to give retro Console feel.
Enhanced Audio AUDIO: PSG+SCC+FMPAC etc
IDE for CF Card or HardDrive ( an SD card interface might be to 'Messy') ??
Cartride slot etc as in original MSX standard
PLUS +++
Z180 second CPU for Turbo mode with 512K+ SRAM and 512K EPROM with 'Tube' interface/expansion slot to possibly allow a 68000 CPU to be added.

The only components that would be surface mount would probably be the V9900 and associated logic.

In other words: You have no idea what you're talking about.

By anonymous

incognito ergo sum (116)

23-11-2015, 04:23

tvalenca wrote:

megatron wrote:

I saw a better spec:

Possibly a Better Specification (maybe) would be ??:

Are you sure, or are you speculating?
[…]

Your post was hilarious. I couldn't stop laughing. This is how we should handle all these clueless specification requests. :-)

By l_oliveira

Hero (534)

23-11-2015, 05:41

Just mentioning, one thing which is similar to a MSX computer but using a 68000 CPU (64KB RAM, Yamaha VDP which is based on TMS9918) actually exists... It's called "SEGA Mega Drive".

By Daemos

Paragon (2026)

23-11-2015, 15:14

Quote:

Your post was hilarious. I couldn't stop laughing. This is how we should handle all these clueless specification requests. :-)

Funny how someone gets completely flamed to destruction for just brainstorming. Even if the idea sounds hilarious it is still an idea. Nobody died you know. Brainstorming leads to many paths and offcourse many are not feasable but think about it when someone likes input on the creation of a new product and everyone is affraid to give an idea. We will all be affraid to try or to even think along. Better let the specialists sort things out if you don't want to meddle with them or I will get burned at the stake for saying something stupid. We must remember how we all started, as beginners. Should I flame someone straight into the ground next time when someone comments on audio hardware design? Remember that there is a actual person behind that post not some dog you can easily yell at.

By Opethian

Master (147)

23-11-2015, 15:37

tvalenca, I like the cut of your jib

By zPasi

Champion (499)

23-11-2015, 16:17

AxelStone wrote:

Totally agree, there is no way a MSX3 could be designed.

Absolutely. What would be the point designing MSX3? The idea of MSX always was to design the best possible affordable home computer, that comply the standard. What would that be today? A powerful PC that when desired, runs the old MSX classic games and software on an emulator? We already have that!

AxelStone wrote:

The idea is develop a new computer based on Rpi2 but with all MSX hardware extensions: cartridge slots, joy ports, etc. It should run as MSX turbo R via emulation and has a native mode, the MSX-VR mode, for new developments.

I support the idea. Raspberry PI has all the power required to the job, and more. The only things missing are cartridge slots, joy ports and such. And an attractive casing. It can be build!

And analog video out! Composite would be good. I'm not joking! I even kept my old 14" CRT colour TV for using with my retro computers!

By anonymous

incognito ergo sum (116)

23-11-2015, 16:18

@tvalenca

clap, clap, clap, clap!!!

By Grauw

Ascended (10682)

23-11-2015, 16:29

Daemos wrote:

Remember that there is a actual person behind that post not some dog you can easily yell at.