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Trying your RAM upgrade with the latest BE6502

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Posted by Dave Man Dave   (1 post)  [Biography] bio
Date Tue 07 May 2024 06:08 PM (UTC)

Amended on Tue 07 May 2024 06:41 PM (UTC) by Dave Man Dave


Firstly can I say a big thank you for your amazing web page and work that you have done on the BE6502. Its great, please keep it up :-)


I re-watched Ben's video and worked out that that the ram upgrade uses the same memory space as the ACIA chip LOL. So of course it would never work. :-)
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Posted by Nick Gammon   Australia  (23,003 posts)  [Biography] bio   Forum Administrator
Date Reply #1 on Wed 08 May 2024 06:29 AM (UTC)
Yes, I think he was generous in his use of address spaces. You could try to restrict the RAM upgrade to use less addresses, but that would require another chip or two for the address decoding. Or just ditch the ACIA because my bit-banged serial works anyway.

- Nick Gammon

www.gammon.com.au, www.mushclient.com
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