Adrian Stokes' 2MB Memory Expansion?

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drag0n
Posts: 14
Joined: Sun Jul 08, 2012 1:03 pm

Adrian Stokes' 2MB Memory Expansion?

Post by drag0n »

I spotted a "Dragon 32 2MB Memory Expansion" PCB on eBay. The silkscreen reads "Designed by Adrian Stokes" with a 2026 copyright.

Image

It looks like an external cartridge port expansion running a Xilinx XC95144XL CPLD and two 1MB SRAM chips.
Software Notes:
- Works immediately with POKE/PEEK commands in BASIC
- For OS-9/NitrOS-9, requires Level 2 with 2MB support

Does anyone have a lead on this project, or know if there is any documentation or NitrOS9 L2 drivers available for it?

https://www.ebay.com/itm/168388617955
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Go4Retro
Posts: 22
Joined: Thu Feb 22, 2018 12:47 pm

Re: Adrian Stokes' 2MB Memory Expansion?

Post by Go4Retro »

He posted on FB a bit ago about it:

https://www.facebook.com/groups/dragon3 ... 556877046/
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