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 Core Memory 64 bit
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 Return to top of page · Post #: 1 · Written at 8:32:48 PM on 19 July 2015.
Art's Gravatar
 Art
 Location: Somewhere, USA
 Member since 22 October 2013
 Member #: 1437
 Postcount: 896

Hi Guys Smile
We all know modern electronics is crap, so I decided to make a 64 bit core memory
for practical use in a micro controller project Smile
The intention is to store a pair of 32 bit floats containing a last known geo-location
for use with Astronomy calculations in case the GPS cannot get a current position fix.

The YouTube software demo shows first, a demo of converting 64 bits to a pair of floats
as if read in serially as it will be from the memory. The second part just increments
the pair of floats and converts them back to a bit array as will need to happen to
write floats back to the memory.
Cheers, Art.

Image Link

Image Link

Software Driver:
https://www.youtube.com/watch?v=YirR9WHJN5w


 
 Return to top of page · Post #: 2 · Written at 10:15:26 AM on 28 July 2015.
Art's Gravatar
 Art
 Location: Somewhere, USA
 Member since 22 October 2013
 Member #: 1437
 Postcount: 896

That’s seems a long time ago... I just finished the current driver section.

Image Link

Image Link


 
 Return to top of page · Post #: 3 · Written at 11:32:13 AM on 5 August 2015.
Art's Gravatar
 Art
 Location: Somewhere, USA
 Member since 22 October 2013
 Member #: 1437
 Postcount: 896

And done Smile
Sense receiver toroid:
Image Link

Sense receiver assembly viewed from what will be the rear:
Image Link

Lower shift registers:
Image Link

Marline wire lacing on upper (latched) shift register board:
Image Link

Completed Modules:
Image Link

Image Link


 
 Return to top of page · Post #: 4 · Written at 10:43:09 PM on 22 August 2015.
Art's Gravatar
 Art
 Location: Somewhere, USA
 Member since 22 October 2013
 Member #: 1437
 Postcount: 896

Hi Guys Smile
Well I finally finished it, and added serial terminal support which makes for a good demo.
The video shows writing eight bytes at a time, and demonstrates how a permanent magnet
can be used to corrupt the data by waving it around the core pane.
Cheers, Art.

Image link:
Image Link

YouTube demo video:
https://www.youtube.com/watch?v=i8wXkI-mQBE


 
 Return to top of page · Post #: 5 · Written at 12:55:42 PM on 1 September 2015.
Redxm's avatar
 Location: Tamworth, NSW
 Member since 6 April 2012
 Member #: 1126
 Postcount: 466

Congratulations on getting the project on Hack a day.

http://hackaday.com/2015/08/31/core-memory-for-the-hard-core/


 
 Return to top of page · Post #: 6 · Written at 11:34:02 PM on 7 September 2015.
Art's Gravatar
 Art
 Location: Somewhere, USA
 Member since 22 October 2013
 Member #: 1437
 Postcount: 896

Thanks Smile I think that is my sixth Grin
I've almost finished my core ROM as well to go with it (64 bytes).
It stores the geo-locations of Australian capital cities.
The core ROM, it's simpler, but I don't think anyone has ever done it.


 
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