"Let's make GD ROM emulation happen" Facebook group.

Discussion in 'Sega Dreamcast Development and Research' started by sonicdude10, Jun 18, 2012.

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  1. sonicdude10

    sonicdude10 So long AG and thanks for all the fish!

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    A hell of a lot of people are showing interest in this. You should see the Facebook side of things.
     
  2. cybdyn

    cybdyn Embedded developer (MCU & FPGA)

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    Evotistica -better talk in PM, maybe you can be one of the supplier-testers.
     
    Last edited: Oct 18, 2013
  3. sonicdude10

    sonicdude10 So long AG and thanks for all the fish!

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    I knw we talked of this before but incase you forgot I'm willing to help with that as well complete with paying a "donation" for it too.
     
  4. cybdyn

    cybdyn Embedded developer (MCU & FPGA)

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    i can read your and others personal offers in PM.
     
  5. Patenckin

    Patenckin Newly Registered

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    By IDE you mean 40pin (3,5 HDDs) or 44pin (2,5 HDDs)?
     
  6. cybdyn

    cybdyn Embedded developer (MCU & FPGA)

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    40 pin. i didnt see sata<>ide adaprtors w/ 44pin sonnector.
     
  7. madsheep

    madsheep Peppy Member

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  8. TriMesh

    TriMesh Site Supporter 2013-2017

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    They exist - I have a number of them.
     
  9. OzOnE

    OzOnE Site Supporter 2013

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    Yep, they do all sorts of adapters on eBay now for only a few dollars.

    I'm liking the idea of just sticking USB on it.
    It would simplify the board design a bit, and would make it smaller.

    Then again, IDE is simple enough to implement, and I do like the concept of just sticking a 2.5" laptop HDD inside the DC. ;)

    If it had only USB, people would just need to buy the chosen adapter (IDE / SATA HDD, SD, CF, USB stick etc.).

    I'm just starting to discover the ARM boards, and they have good support already for USB storage, and for CF / SD cards.

    cybdyn and I are wondering if the ARM itself would be fast enough to keep up with the commands directly from the DC (without needing the FPGA at all).

    It's possible, but it needs to service the ATA / ATAPI commands as quickly as it can.
    DMA isn't so much of a problem, because that is initiated by the "drive" itself anyway. The ARM chips also have a nice DMA block for things like that.

    It will probably use a small FPGA / CPLD for now though.

    Still working on the NAOMI stuff too.
    I've mapped out all of the G1 bus connections now (goes to the FLEX FPGA mainly).
    I have my first working NAOMI on the way to do further testing. :p

    OzOnE.
     
  10. Abkarino

    Abkarino Newly Registered

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    Hello every body,
    this is a great project that i hope that i see it finished some days.
    Also i'm interesting to make another prototype for PS3 since the PS3 uses normal PATA/SATA data bus for its optical drive, and i hope that some one here could guide me from where i must start my project.
    I had studded the GC-Emu project since it was an open source project and now i have some info about how i could port this to PS3.
     
  11. splith

    splith Resolute Member

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    IDE is 40 pin ONLY, the 44 pin 2.5" laptop connector is a miniturised version with the power supplied through the connector instead of another connector, you can get converters between the two for $0.99 on ebay.
     
  12. madsheep

    madsheep Peppy Member

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  13. cybdyn

    cybdyn Embedded developer (MCU & FPGA)

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    insufficient funds. so it's not big news for now. i've almost finished new pcb for dcio, 5 x 5mm : fpga + ARM (sd , usb host. no IDE). "male" and "female" pads for gd-rom connectors.
    1) gdemu
    2) gdrom to usb for fast copying gdi/cdi
    3) "spy" , logger
     
  14. sonicdude10

    sonicdude10 So long AG and thanks for all the fish!

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    So the new board will allow the original drive to be attached to copy games to the storage medium like with a Xbox?
     
  15. -=FamilyGuy=-

    -=FamilyGuy=- Site Supporter 2049

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    That seems quite a lovely setup Мой друг!
     
  16. cybdyn

    cybdyn Embedded developer (MCU & FPGA)

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  17. OzOnE

    OzOnE Site Supporter 2013

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    Cool.

    The USB host does make more sense nowadays.

    @sonicdude - it should take a standard USB 2.5" HDD or Flash drive, so I guess any standard drive will work on the DC.

    For going the other way around - On most ARM chips, the OTG port can function as both a host and a device, so should show up on something like an Xbox 360.

    cybdyn may have more info on this, but it's all feasible.

    OzOnE.
     
  18. Shane McRetro

    Shane McRetro Blast Processed Since 199X

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    So much progress on all optical drive based fronts, a good time to have a unit or three with dying lasers or noisy motors about to seize! :)
    Errr Cybdyn, is one of your microchips the wrong way around in that picture on the far right? :p
    As always, keep up the great work! :D
     
  19. cybdyn

    cybdyn Embedded developer (MCU & FPGA)

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    it's 3D model is wrong, other things are Ok.
     
  20. sonicdude10

    sonicdude10 So long AG and thanks for all the fish!

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    I was talking about how it has connectors on both sides. One to fit the Dreamcast board and the other looks like it fits a GD drive. I was asking if a GD drive can be hooked at the same time to allow for copy a disk over to the USB drive or SD card.
     
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