Thursday, April 30, 2015

ECS scandoubler for A500 / A2000

A homebrew scandoubler project. It is bug free, supports DPMS energy saving and PAL / NTSC screenmodes. It fits into A500 and A2000 perfectly.

The logic is realized with a Xilinx XC95144XL CPLD. The video DAC is a ADV101 from Analog Devices.

On the pictures below You can see how the rev. 3 is fitting in an Amiga 500.





And the rev 4. in Amiga 2000. Needless to say, both prototypes are working properly.


Rev. 4 PCB preview
More pictures

5 comments:

  1. Excellent !!!
    I congratulate !!!. You are a genius.
    Fran

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  2. Hi,
    Nice update!, A2000 ;)
    Fran

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  3. Great! Can I preorder A2000 version somewhere?

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  4. No preorders are accepted as the scandoubler is not ready for production yet.

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  5. Awesome man. I'm really jealous of your success. Your projects here are really fantastic. I've got more ideas than I have time, but that's no excuse!

    Keep up the great work. Love the pictures, would love some more of the technical details, code, or even pseudo-code/algorithms. For instance, can you spell out in detail how the scandoubler works? How do you decide when to sample denise? Do you use some triggers to reset a counter, and then count so much time until the line trigger? Do you use a line buffer, and process a line at a time?

    -Your fellow amiga project friend
    Keith @ techtravels.org

    ReplyDelete