building the aleste 520ex (cpc/msx russian clone)

Started by Sebastian Blanco, 02:23, 01 November 19

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Sebastian Blanco

Quote from: IRIOS on 13:50, 01 November 20
Hello,
I am mounting the computer (ALESTE PCB 2018) and I do not have the reference of U5.
Would it be possible to have the reference of the U5 component?

Thanks a lot.
Best regard
Irios
Can you point out where in the board is the ic ?, a picture if possible ?.I don't have any Ux components on the BOM.

Bryce

U5 means IC5, but check anyway in case the chips are numbered differently on different versions.

Bryce.

IRIOS

Hello,
Thank you for your answers.
Below are the photos of the board and the U5 component.

I looked at all the diagrams on the net but there is no mention of this U5 component.
Is it an interface that has been added? Is it maybe an LF amplifier?

Thank you for your help


http://irios.free.fr/ALESTE/RED%20PCB%20ALESTE.PNG
http://irios.free.fr/ALESTE/U5.PNG
http://irios.free.fr/ALESTE/BLACK%20PCB%20ALESTE.jpg

Sebastian Blanco

Quote from: IRIOS on 15:37, 22 December 20
Hello,
Thank you for your answers.
Below are the photos of the board and the U5 component.

I looked at all the diagrams on the net but there is no mention of this U5 component.
Is it an interface that has been added? Is it maybe an LF amplifier?

Thank you for your help


http://irios.free.fr/ALESTE/RED%20PCB%20ALESTE.PNG
http://irios.free.fr/ALESTE/U5.PNG
http://irios.free.fr/ALESTE/BLACK%20PCB%20ALESTE.jpg


Hi sorry but you are building the other version of the aleste board that is for replacement of the UKNC one.
I can't help you on this chip.
You can ask on https://zx-pk.com/forum/ theres a thread in there about assembly this particular board.


RockRiver

#79
Hi Aleste users and enthusiastics...
I recently have a MSXVR, now that VR scene trying to run different CPC models.

As " missing link " between CPC and MSX2, Aleste is great and brotherhood in the two 8bit scenes  :)


If I convince MSXVR coders to emulate Aleste maybe they will like it msx-dos use, new screen modes...

* anyone would load "new" MSX2 games on Aleste ?
* Metal Gear on Aleste??? dedicated web site said it was happened .
With a Hex Editor or BIN editor we can change Metal Gear header ; or "Patisonic" Loader or other ROMs/BIN . Coping actual header of other running Aleste's MSX2 soft... (kings valley...)


>>>>Q: But MSX software had to be patched to work on Aleste, isn't it?
A: No. If the program doesn't directly call hardware, it will work well. Such things as archivers, compillers, command.com, msxdos.sys or VFY (disk verifier) worked without changes. When we adapted MSX DOS we took many command line tools from MSX DOS. The most difficult thing was rebuilding the MSX disk ROM because MSX uses different FD controller.
Q: And how did you loaded MSX cartridge dumps? (it was possible, if I am not wrong?)
A: Cartridges were not popular at Russia.

Q: But the games you had were cartridge dumps, isn't it? King's Valley is a cartridge game, and you had the game... I suppose you had a .bin file which was a dump of the EPROM of the cartridge, is it right?
A: Right, games were cartridge dumps. But we only got five or six games for MSX (and all of them were MSX 2 games), so we changed game's code. All this MSX games have a little BIOS at first 2KB and a little loader. We replaced both the BIOS and the loader by ours.<<<<<<

Sebastian Blanco

Quote from: RockRiver on 11:03, 18 June 21Hi Aleste users and enthusiastics...
I recently have a MSXVR, now that VR scene trying to run different CPC models.

As " missing link " between CPC and MSX2, Aleste is great and brotherhood in the two 8bit scenes  :)


If I convince MSXVR coders to emulate Aleste maybe they will like it msx-dos use, new screen modes...

* anyone would load "new" MSX2 games on Aleste ?
* Metal Gear on Aleste??? dedicated web site said it was happened .
With a Hex Editor or BIN editor we can change Metal Gear header ; or "Patisonic" Loader or other ROMs/BIN . Coping actual header of other running Aleste's MSX2 soft... (kings valley...)


>>>>Q: But MSX software had to be patched to work on Aleste, isn't it?
A: No. If the program doesn't directly call hardware, it will work well. Such things as archivers, compillers, command.com, msxdos.sys or VFY (disk verifier) worked without changes. When we adapted MSX DOS we took many command line tools from MSX DOS. The most difficult thing was rebuilding the MSX disk ROM because MSX uses different FD controller.
Q: And how did you loaded MSX cartridge dumps? (it was possible, if I am not wrong?)
A: Cartridges were not popular at Russia.

Q: But the games you had were cartridge dumps, isn't it? King's Valley is a cartridge game, and you had the game... I suppose you had a .bin file which was a dump of the EPROM of the cartridge, is it right?
A: Right, games were cartridge dumps. But we only got five or six games for MSX (and all of them were MSX 2 games), so we changed game's code. All this MSX games have a little BIOS at first 2KB and a little loader. We replaced both the BIOS and the loader by ours.<<<<<<


Sorry but msx games need to be heavily modified to be used on the aleste, they are only 2 games that are modified at the moment castlevania and another one.


TotO

I think that by redoing the Aleste 520 PCB, it was more clever to install the MSX2 VDP on the board design.
"You make one mistake in your life and the internet will never let you live it down" (Keith Goodyer)

kawickboy

There is no information about the 3rd MSXVR batch yet.

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