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Archie A3000 inbound

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rubber_jonnie
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Re: Archie A3000 inbound

Post by rubber_jonnie »

HigashiJun wrote: Thu Apr 04, 2024 11:26 am @rubber_jonnie

I guess these ports are remainders of the Acorn BBC, but I have no idea what their exact purpose is.

I wanted MIDI ports, and the Morley MIDI podule is the only expansion allowing to fit an Ethernet podule at a good height (the AKA12 has bigger MIDI connectors, and the Ethernet podule would sit too high).
Cool. I'm sure you'll make a very neat job of it based on your previous work :)
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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stephen_usher
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Re: Archie A3000 inbound

Post by stephen_usher »

The analogue port is an 8 bit, dual channel A-to-D port.

The "User Port" is an 8 bit GPIO port.
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
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HigashiJun
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Re: Archie A3000 inbound

Post by HigashiJun »

@stephen_usher

Thanks for this information !
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HigashiJun
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Re: Archie A3000 inbound

Post by HigashiJun »

rubber_jonnie wrote: Thu Apr 04, 2024 11:49 am Cool. I'm sure you'll make a very neat job of it based on your previous work :)
Thanks !

8-)
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HigashiJun
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Re: Archie A3000 inbound

Post by HigashiJun »

It's been a long time since my last post, but my work kept me quite busy (and my soldering iron went fubar)...

Since I have some days off now, I guess I will be able to finish my A3000 as soon as the replacement part for my soldering iron arrives (should be tomorrow :crossed1: )... I could have bought a brand new cheapo rework station, but why spend more when you can just replace the defective part.

Anyway, stay tuned for more news.
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HigashiJun
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Re: Archie A3000 inbound

Post by HigashiJun »

So, I received the replacement part for my soldering iron at the end of the afternoon yesterday and I was not feeling like starting my mods at 5:00 pm...

The soldering station is at least now back on its feet and ready to assist me in my never-ending projects. :D

As I couldn't do anything for weeks, I wanted to start first with all the podules connections which were left unfinished:

Ok.JPG
Ok.JPG (259.52 KiB) Viewed 1498 times

This one went OK, but the other one had to ruin my day when a pin broke:

Bad.JPG
Bad.JPG (244.38 KiB) Viewed 1498 times

And of course, I didn't have any spares in my parts box and had to order some.

Now I have to wait, and meanwhile desolder the connector with its broken pin. :x

Nevertheless, I had another mod in my head whilst the soldering iron was still hot.

I have decided to give my Aleph One a little surgery.

Before:
ARM25Mhz.JPG
ARM25Mhz.JPG (326.56 KiB) Viewed 1498 times

and after:
ARM30Mhz.JPG
ARM30Mhz.JPG (409.13 KiB) Viewed 1498 times

A socket is fitted under the oscillator and changing the ARM clock is now easy.

Once the podules are finished for good, I will try a 66Mhz crystal.

Everything fits nicely under the limited space under the keyboard, and works without any glitches at 30Mhz.

:D

More to come soon.
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HigashiJun
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Re: Archie A3000 inbound

Post by HigashiJun »

I finally received the missing part today, and could almost finish the 3 in 1 podule mod:

2podules.JPG
2podules.JPG (309.47 KiB) Viewed 1470 times

Looks better with the pins going upward and the cable tie as a strain relief for the 3 wires...

3podules.JPG
3podules.JPG (448.92 KiB) Viewed 1470 times

The IDE podule will be fitted horizontally.

3podulesIDE.JPG
3podulesIDE.JPG (394.02 KiB) Viewed 1470 times

And here's what it will look like with the CF card installed.


Since the IDE podule collides with the plastic pole, I have to shorten the IDE podule pins and file this plastic pole a bit such it holds the IDE podule.
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rubber_jonnie
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Re: Archie A3000 inbound

Post by rubber_jonnie »

That's quite the sandwich of Podules!!!
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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HigashiJun
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Joined: Fri Jun 19, 2020 7:21 am
Location: Tokyo

Re: Archie A3000 inbound

Post by HigashiJun »

:lol:
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HigashiJun
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Re: Archie A3000 inbound

Post by HigashiJun »

My 3-in-1 podule is finally done:

3podulesOK.JPG
3podulesOK.JPG (461.2 KiB) Viewed 1295 times
Yay!.JPG
Yay!.JPG (472.33 KiB) Viewed 1295 times

Next step is to cut off the metal plate for the RJ45 connector and drill a hole for the LED.

8-)
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