MFX mass-storage add-on

Modern, Memotech inspired, hardware projects
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Dave
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Re: MFX mass-storage add-on

Post by Dave »

gunrock wrote: 09 Jun 2022 08:19 Its only Martina at the weekends, Dave, ffs! :lol:
In the privacy of your own home, any time of the week is OK :lol:
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Dave
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Re: MFX mass-storage add-on

Post by Dave »

It's been a little quiet, so here's a bit of an update for you . . . .

I don't have a few parts that I need to fully test the first version of the PCB, but here you can see probably the largest (by area) memory only upgrade board ever installed in an MTX !

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Potholepete
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Re: MFX mass-storage add-on

Post by Potholepete »

looking good, am looking forward to the finished version :-)
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Dave
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Re: MFX mass-storage add-on

Post by Dave »

Thanks Jim,

IT'S ALIVE !

Well, at least the memory expansion part is

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Martin A
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Re: MFX mass-storage add-on

Post by Martin A »

So much better looking than the prototype too!
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Dave
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Re: MFX mass-storage add-on

Post by Dave »

The "smarts" all come from that prototype though ;)
Potholepete
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Re: MFX mass-storage add-on

Post by Potholepete »

Retro Mode?
Martin A
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Re: MFX mass-storage add-on

Post by Martin A »

Potholepete wrote: 25 Jun 2022 00:13Retro Mode?
http://primrosebank.net/computers/mtx/p ... fx-dev.htm
Down near the bottom of the page there's an explanation and an example.

Basically make the crisp clean VGA image look more like a noisy RF signal on a TV.
Potholepete
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Re: MFX mass-storage add-on

Post by Potholepete »

and now I know :lol:
Martin A
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Re: MFX mass-storage add-on

Post by Martin A »

To add to Dave's photo of a part completed board, this is what it looks like in all its completed glory!
full board.jpg
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The FPGA board is on risers to allow easy access to the programming header, so I'm running externally powered. In it's proper position there is a power supply from the board and the external supply becomes optional. That would be done using the connector on the end.

The FPGA can be personalised, so my board carries serial number MA00 as shown on the CPM boot screen. Dave's would show DS01 instead
CPM Latest.jpg
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.

The Wiznet module in the photo is tested and working as both FTP client and web server. Transferring new software for testing is now a breeze!

There are other things that could possibly be added, but basically it's done, it's meeting all of the design goals.

3D printed end plate is still to be done. That won't be until any niggles arising from testing are sorted and the risers are removed alowing the case to close.
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