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Author Topic: M-Slot (MSX cartridge adapter) (Read 4196 times)

Offline pear

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Re: MSX slot
« Reply #45 on: 2018.May.30. 11:07:43 »
OK, that was just my humble suggestion :)

Offline gflorez

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Re: MSX slot
« Reply #46 on: 2018.May.30. 11:40:48 »
And I thank you very much...

Offline szipucsu

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Re: MSX slot
« Reply #47 on: 2018.June.05. 12:56:45 »
This is the final aspect of the adapter card:
This really reminds me of some Skramble game:
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Offline gflorez

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Re: MSX slot
« Reply #48 on: 2018.June.05. 15:09:18 »
Yes... The islands that you see are shielding masses, necessary because the MSX slot has the signals in very different positions than the Enterprise slot. The threads cross them all together. If not for that the card would have been a lot more narrow.

Offline gflorez

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Re: MSX slot
« Reply #49 on: 2018.June.10. 19:41:27 »
The prototype cards are on the way.

The picture they have sent me is awful...


Offline geco

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Re: MSX slot
« Reply #50 on: 2018.June.11. 08:35:40 »
The picture they have sent me is awful...

It was not produced by a photographer :D We can hope that the card is wonderful in the reality ;)

Offline gflorez

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Re: MSX slot
« Reply #51 on: 2018.June.25. 13:53:02 »
The cards arrived....
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But patience, now a few tests.

Offline gflorez

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Re: MSX slot
« Reply #52 on: 2018.June.27. 21:20:08 »
The tests ended successfully!

On a few hours my friend Wilco will make the announce and will free to public domain the designs of the Bus expander and the M-Slot.

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« Last Edit: 2018.June.27. 23:53:09 by gflorez »

Offline pear

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Re: MSX slot
« Reply #53 on: 2018.June.28. 06:05:04 »
:smt038 :smt038 :smt038

Offline TMTLOGIC

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Re: MSX slot
« Reply #54 on: 2018.June.28. 12:09:01 »
:smt020 :smt038
WWW.TMTLOGIC.COM

Offline Zozosoft

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Re: MSX slot
« Reply #55 on: 2018.June.28. 12:18:58 »
Wow! :smt038

Offline gflorez

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Re: MSX slot
« Reply #56 on: 2018.June.29. 21:17:50 »
Wilco has already announced the bus expander and the M-SLOT on several Spanish web pages. I will put here the English translation and some clarifications from mine.

"NEW BUS EXPANDER AND M-SLOT FOR THE ENTERPRISE"

"Here I present you the new hardware in which gflorez and I have been working lately.
It is a little expander card for the Enterprise computer that will allow you to connect three interface cards at the same time. And if you need more room it can be expanded with a wagon card that will allow connecting 3 more additional interface cards.
"

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"And, what additional advantages you will find?:

- The expensive EDGE connector is replaced by an IDC connector much easier to find.
- It has a 7805 voltage regulator that allows to externally feed the interface cards in the event that the internal source of the Enterprise is not enough.
- Buffers are included for the main signals of the Enterprise.
- Optionally EDGE connectors can be soldered in place of the IDC in case you want to use interfaces compatible with the original bus expander
(03-19 Enterprise Expansion Motherboard, never produced)   or the current ones of the Hungarian scene(Meszaros).
- It has the blessing of the Hungarian scene
(....), so it is expected the development of new hardware for this expander.
- We already have an interface for this expander that allows to connect some cards for MSX in our Enterprise.

Although the M-SLOT interface (as it is called) has already be shown by gflorez, I will comment some aspects about it."


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"It is an interface converter of the MSX bus to the Enterprise bus, which will allow us to connect some existing cards for MSX in our Enterprise.

Will all MSX interfaces work? Obviously not, as we will have port conflicts in some of them but we are actively working to support some of them.

Here you can see the converter connected to the expander plate and an MSX cartridge:
"

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"Well, the subject is already mature enough to put it at your disposal and make a batch of cards.

I still have not calculated the exact prices, but as a guideline I can tell you that the expander kit (plate + components) unmounted will be around € 15, while the M-SLOT kit will range about € 10
(excluding post)

Those of you interested can express their will in this thread while I'm managing the exact prices."


Well, I have to mention that the end connector allows the connection of a direct expansion card like the Microteam, only changing the EDGE connector to SIL. Other added option is the possibility to feed 9v to the slots to use the old Meszaros expansion cards. And most important, thanks to Zozo's advice a 9pin header will be provided to install pull-ups to the Z80 I/O bus, just in case of ghost memory segments error.

Yes, you have read correctly, only unsoldered kits will be available, but both kits have very few components. The only dangerous components are the SMD chips, but really, it was my first time and they had been very easy to solder with an standard iron. They have very big legs.

On the other side.....ask your geek friend for some aid, do not miss this opportunity.

If you can't, no problem the two projects will be put on the public domain, so anyone person can in the future order a batch of them.

I would appreciate the creation of an Hungarian thread about this same topic. Also a Wiki section will be a good idea.
« Last Edit: 2018.June.29. 21:35:18 by gflorez »

Offline geco

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Re: MSX slot
« Reply #57 on: 2018.June.29. 23:25:39 »
Coooooool :smt041

Offline Tutus

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Re: MSX slot
« Reply #58 on: 2018.June.30. 06:52:37 »
:smt038 :smt038 :smt038

Offline gflorez

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Re: MSX slot
« Reply #59 on: 2018.July.06. 00:57:32 »
I have actually 13 PCBs and parts to mount M-Slots, but the first batch of 10 bus expanders is over. I have ordered 10 PCBs more, that will be received probably on the next 15 days.

The problem with the M-Slot is that it is a full sized expansion that needs at least a bridge connector or a bus expander. Is for that I have intended to supply one bus expander(15 Euro) with every M-slot(10 Euro) at the cheapest price.

I know, you also need to buy a MSX cartridge to enjoy the M-slot, but think that the bus expander alone opens a lot of possibilities of connection to your machine, from classic expansions(EXDOS, Spectrum emulator, Mezsaros cards...) to other new projects, like the M-Slot, that will be easier to be produced on the future(at least I will impulse more...).
« Last Edit: 2018.July.06. 11:43:32 by gflorez »