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My New Demo to be unveiled at Eindhoven - Page 8 — Parallax Forums

My New Demo to be unveiled at Eindhoven

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Comments

  • mctriviamctrivia Posts: 3,772
    edited 2009-12-02 09:41
    i figure assuming pin out is favarable i should be able to get banks a and b out to pins and use bank c for ram and on board periferals.

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    24 bit LCD Breakout Board now in. $21.99 has backlight driver and touch sensitive decoder.
  • BaggersBaggers Posts: 3,019
    edited 2009-12-02 09:47
    I keep thinking 64output pins, probably because it's been 64 for so long, but it's probably gonna be more like 96+some for boot up etc [noparse]:D[/noparse]
    How spoilt are we gonna be!!

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  • potatoheadpotatohead Posts: 10,261
    edited 2009-12-02 16:08
    This is going to be an insane number of pins. At the beginning 32 seemed excessive. Now, it's a hindrance big. Good to see Chip headed the other direction!

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  • BaggersBaggers Posts: 3,019
    edited 2009-12-02 16:55
    I think the reason it's become a hinderence, is because when it first came out, people were using it like a micro controller, but because of it's power, it's a LOT more than just a micro controller ;D and now that we're getting used to it's power, we're wanting to throw more things at it, like sram for bigger apps, like CP/M which is amazing when you think about it, especially when you look at how small the chip count is, compared to how big it was back then [noparse]:D[/noparse]

    I think we're all glad Chip decided to give us more than what was going to be the first pin count of 64, it may seem overkill, especially for beginners, but then when they get into it, they'll be as happy as we are now with this decision [noparse]:)[/noparse]

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  • Toby SeckshundToby Seckshund Posts: 2,027
    edited 2009-12-02 17:24
    P8X32B - If only, if only, ...

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  • BaggersBaggers Posts: 3,019
    edited 2009-12-02 18:02
    Dear Santa, ... lol

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  • potatoheadpotatohead Posts: 10,261
    edited 2009-12-02 19:13
    [noparse]:)[/noparse]

    No kidding!

    Well, that's a lesson in true multi-processing. When a kernel to manage things does not have to be written, it is a lot easier to control more things at one time, which eats the pins fast!

    Love it.

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  • Toby SeckshundToby Seckshund Posts: 2,027
    edited 2009-12-02 19:55
    I have a sawn off PCB from a DVC machine. It has a Z180, 128 rom, 32k ram etc. It only read the keyboard on the VTR and has loads of unused pins on a DIP64, if only there was a PropB (ish) in that package (or PLCC64/84). I see that the socket for it is more than the cost of a Prop. They say that the cost of the PLCC packages make them too expensive but there can't be that much resin/plastic used over the DIP40 sort, and you can focus on the pins and see the gap between them.

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  • wjsteelewjsteele Posts: 697
    edited 2009-12-10 16:24
    Wow, Baggers!!!· This is awesome!· For those of you who have LCD that support both NTSC and PAL, I switched mine to PAL and it worked flawlessly (no cutting off.)

    It seems that it doesn't care that it is running on a 60hz system.

    Now, I wonder what we can do if we simply added another Prop to this.· (Use it to do some of the Enemy AI?· Handle IO?· Free up memory?)

    Bill
  • potatoheadpotatohead Posts: 10,261
    edited 2009-12-10 16:51
    Yeah, excellent isn't it?

    Dynamically drawn too. That's the part that just floors me. Really shows off what multi-processing can do.

    PAL has a number of advantages over NTSC, and better vertical resolution is among the best. PAL can go 50 or 60 Hz on most all displays. Nobody does it much here, but an awful lot of NTSC displays will do 50Hz too.

    For games, the 50Hz is kind of nice because it has more blanking time for computations, which is often exploited for demos. 60Hz PAL is nice because then the computations all work out for both formats.

    Color artifacting on PAL works differently too. On NTSC, it's the pixel clock in relation to the color burst that does it. Output too small of a pixel, and you get colors. On PAL, outputting different colors on different frames yields new colors, for a better looking overall effect.

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  • BaggersBaggers Posts: 3,019
    edited 2009-12-10 22:26
    Thanks wjsteele [noparse];)[/noparse] glad you like it. and I would like to further it when I have some time, right now though my spare time is going into my port of the old atari classic of HERO over on the Hydra/Gaming forum

    Thanks potatohead. [noparse];)[/noparse]

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  • BradCBradC Posts: 2,601
    edited 2009-12-11 00:27
    Baggers said...
    right now though my spare time is going into my port of the old atari classic of HERO over on the Hydra/Gaming forum

    I can see I'm going to need to start building up a "hydra-alike" shortly...

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  • BaggersBaggers Posts: 3,019
    edited 2009-12-11 08:59
    BradC, It will work on demo/proto board also. [noparse]:D[/noparse]

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