Archie A3000 inbound

[rubber_jonnie]

@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 :)

[stephen_usher]

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

The "User Port" is an 8 bit GPIO port.

[HigashiJun]

@stephen_usher

Thanks for this information !

[HigashiJun]

Cool. I'm sure you'll make a very neat job of it based on your previous work :)

Thanks !

8-)

[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.

[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

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

Bad.JPG

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

and after:

ARM30Mhz.JPG

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.

[HigashiJun]

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

2podules.JPG

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

3podules.JPG

The IDE podule will be fitted horizontally.

3podulesIDE.JPG

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.

[rubber_jonnie]

That's quite the sandwich of Podules!!!

[HigashiJun]

:lol:

[HigashiJun]

My 3-in-1 podule is finally done:

3podulesOK.JPG

Yay!.JPG

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

8-)