ARM adapter board for Minimig

RchGrav · **Joined:** Mon Dec 01, 2008 1:02 am **Posts:** 109

Yaqube if working on an ARM adapter board that will enable better drive (HDD) emulation on the minimig using the SD card. A highly requested feature.

You can read more about it on amiga.org here...

http://www.amiga.org/modules/newbb/view ... C&start=60

yaqube · **Joined:** Mon Dec 01, 2008 10:11 am **Posts:** 144

If you want to see a preliminary hard disk support please take a look at http://uk.youtube.com/watch?v=p-3zG4zE4qQ. Watch in high quality to see more details.

Darrin · **Posted:** Mon Dec 22, 2008 12:41 am

yaqube wrote:

If you want to see a preliminary hard disk support please take a look at http://uk.youtube.com/watch?v=p-3zG4zE4qQ. Watch in high quality to see more details.

Damn! Thank you for posting that. You've dones some brilliant work there and I'm drowning in my own drool. :-D

That's quite a Minimig you've build there (if I can read it correctly):
68000 @ 25MHz
2.0MB Chip RAM
1.5MB Slow RAM
4 x Floppy drives
1 x 512MB Hardfile

How did you add the extra RAM?

Cheers again, and have a great Christmas and New Year. Please keep sharing your progress. It really looks quite nippy. Have you tried making an Alien Breed Tower Assault install disk and installing that? I could make the floppy image from a "blank" ADF file, but obviously couldn't test the install.

TheDaddy · **Joined:** Mon Dec 01, 2008 1:23 pm **Posts:** 30

Jakub!

Great job!

When can we test it?

Will this latest firmware work on standard (our own) Minimig boards or do we have to solder stuff?

Have a great Christmas. :-)

TheDaddy · **Joined:** Mon Dec 01, 2008 1:23 pm **Posts:** 30

Jakub,

How did you record the video?

yaqube · **Joined:** Mon Dec 01, 2008 10:11 am **Posts:** 144

TheDaddy wrote:

How did you record the video?

The video was captured using S-Video output (another hardware modification). Some time ago I promised Illuwatar to resolve a problem with my FPGA core and his Minimig-ITX board with S-Video output so I've built such a circuit to adapt my FPGA core to work correctly with it.

yaqube · **Joined:** Mon Dec 01, 2008 10:11 am **Posts:** 144

Darrin wrote:

That's quite a Minimig you've build there (if I can read it correctly):
68000 @ 25MHz
....

Actually the CPU is clocked at 28.36 MHz. The SysInfo's CPU clock speed estimation routines depend on memory speed and in this case the memory is working at 7 MHz effectively slowing down the CPU. I've also made a version which runs with memory clocked at 14 MHz and SysInfo reports over 28 MHz CPU clock and over 5.0 speed gain over A600. But this design isn't complete now (requires faster memories and it's not stable yet).

P.S. This video is also available in high quality and you shouldn't have any problems with reading all the values in SysInfo.

Cheers!

Darrin · **Posted:** Mon Dec 22, 2008 11:27 am

yaqube wrote:

Actually the CPU is clocked at 28.36 MHz. The SysInfo's CPU clock speed estimation routines depends on memory speed and in this case the memory is working at 7 MHz effectively slowing down the CPU. I've also made a version which runs with memory clocked at 14 MHz and SysInfo reports over 28 MHz CPU clock and over 5.0 speed gain over A600. But this design isn't complete now (requires faster memories and it's not stable yet).

P.S. This video is also available in high quality and you shouldn't have any problems with reading all the values in SysInfo.

Cheers!

Cheers for the info. :-)

My problem is that I'm stuck on this oil rig and our Internet connection is so slow that it took me over 30 minutes just to watch the low res version of your 6 minute video.

It was still worth it.

Before anyone else asks, is your S-Video another thing that needs to be soldered into place, or is it an adapter for the VGA port?

yaqube · **Joined:** Mon Dec 01, 2008 10:11 am **Posts:** 144

Darrin wrote:

Before anyone else asks, is your S-Video another thing that needs to be soldered into place, or is it an adapter for the VGA port?

It's a prototyping board with a lot of soldering and 8 wires connected to some components pads on the Minimig board. It looks very ugly.

TheDaddy · **Joined:** Mon Dec 01, 2008 1:23 pm **Posts:** 30

yaqube wrote:

TheDaddy wrote:

How did you record the video?

The video was captured using S-Video output (another hardware modification). Some time ago I promised Illuwatar to resolve a problem with my FPGA core and his Minimig-ITX board with S-Video output so I've built such a circuit to adapt my FPGA core to work correctly with it.

Does this adapter mean you can connect the Minimig to a tv?

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ARM adapter board for Minimig

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