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Bmack36

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Posts posted by Bmack36

    FPGA Based Videogame System

    in Classic Console Discussion

    Posted

    Whats this about this colectorvision HD. I hear it plays Colecovision, MSX, Sega Master System cartridges. I encourage more FGPA if it's done right. Im not a museum to have these ageing about to fail or rot consoles in my home.

    I watched Madlittlepixel youtube channel about this coming out and having a kickstarter.

     

    Here is a link to the Collectorvision Game System thread if you are interested:

     

    http://atariage.com/forums/topic/265958-collectorvision-game-system/

    CollectorVision Phoenix Game Console

    in CollectorVision

    Posted

    EASTER UPDATE:

     

    We are currently working on the case design and have a preliminary design in mind (very early in the process):

     

    post-45248-0-20182700-1522588604.png

     

    We have changed the feature list a little:

     

    For now we are only doing HDMI video output (directly from the system). This is to reduce costs to those who don't need analog video

     

    SGM support

     

    Added SNES controller port. This will allow the use of the super famicom ntt data controller as well as allow those without a cv controller to play the system with a standard snes controller. (Player 1 only)

     

    Expansion port (not compatible with original expansion modules) that will allow future addons ;)

     

    Power and reset buttons modeled after the joystick of docked controllers see picture above

     

    We are still working to see which cores will be available at launch.

    • Like 10

    FPGA Based Videogame System

    in Classic Console Discussion

    Posted

    I had heard about the ZX-UNO but not the other two.

     

    I hope I am not stepping on some toes but I would like to give them some protips on the Collectorvision board.

     

    It should have ESD protection on the two controller ports, keyboard port, and RGB/audio outputs. The original Coleco had a big problem with the controller ports failing due to ESD. Also, the audio looks like it is just some RC filtered PWM from the FPGA. A real audio DAC isn't very expensive and would sound a whole lot better. Ditto for the video DAC. I see what looks like 3 bits of weighted resistors but not a DAC. I don't see any pullup resistors on the inputs either, unless they (and possible ESD protection) is on the bottom. Also, DDR/SDRAM would be a lot cheaper and 32 times bigger (i.e. 16mbyte vs. 512K) for the RAM.

    Thanks Kevtris.

     

    I always welcome others opinions especially when they are as knowledgeable as you.

     

    The image from the linked post is actually a little out of date.

    The controllers, keyboard, and a few other ports that have been added are running through a gtl2000dgg,118 level converter which is rated for ESD suppression and "hot insertion". So I think it should be fine on ESD protection,

    The VGA port was modeled after the F18a's video output, but I have actually decided to remove the analog video and audio and just do HDMI only to keep costs down.

     

    I had gone back and forth about SRAM vs SDRAM or doing both, but decided to go with the SRAM since it was already implemented and working.

    FPGA Based Videogame System

    in Classic Console Discussion

    Posted

     

    It might be a little bit of "not invented here" talking, but I generally don't see the set of peripherals or design that I like in the existing FPGA videogame boards that exist. I know of about 5 or 6 of them at this point. Usually the peripheral set is lacking in some way. And since I like hardware there is something to designing my own that is very satisfying. The "Standard platform" that satisfies one set of devs might not satisfy others. All of the FPGA videogame boards up until the mister add-on has been composite, s-video, or RGB. The amount of RAM has been lacking, too. I know of the following projects. have I missed any?

     

    * MCC-216

    * FPGA Arcade "Replay" board.

    * MIST

    * Papilio FPGA board (not really marketed as an FPGA videogame board)

    * A2601 (seems to be a one off project)

    * MiSTER (dev board + add-ons)

     

     

    There is also:

    ZX-UNO zxuno.speccy.org

    ZX-Spectrum Next https://www.specnext.com/

    Collectorvision game system is also in development http://atariage.com/forums/topic/265958-collectorvision-game-system/page-4?do=findComment&comment=3922459

    • Like 2
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