We search bios dumps from different versions DevKit.

Discussion in 'Sega Dreamcast Development and Research' started by alex81, Nov 21, 2011.

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  1. alex81

    alex81 Rising Member

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    We search bios dumps from different versions DevKit.

    We have only it:
    Dumps bios are necessary for studies and tests.
     
    alex81, Nov 21, 2011 Report
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  2. splith

    splith Resolute Member

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    How do you dump the bios from the katana SDK to PC?
     
    splith, Nov 21, 2011 Report
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  3. bart_simpson

    bart_simpson Dauntless Member

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    By removing the eprom from the kit.
     
    bart_simpson, Nov 23, 2011 Report
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  4. -=FamilyGuy=-

    -=FamilyGuy=- Site Supporter 2049

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    You can plugin a normal serial cable on the back of the unit and load a gd workshop project of a serial binary loader to dump the memory address that got the bios on it.

    Don't desolder anything!

    FG
     
    -=FamilyGuy=-, Nov 23, 2011 Report
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  5. dhau

    dhau Spirited Member

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    It's too late for something different ;) When I installed SDK 10.1, it prompted to flash a new firmware. So I assume I have whatever comes with SDK 10.1 :)
     
    dhau, Nov 23, 2011 Report
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  6. splith

    splith Resolute Member

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    My kits unopened and staying that way, if it's a serial cable job I might do it but would need the software etc.
     
    splith, Nov 24, 2011 Report
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  7. T_chan

    T_chan Gutsy Member

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    No need for a serial cable.

    - connect your devkit via SCSI
    - install the SDK (cfr my post & winaspi32 replacement in a sticky post here)
    refuse to flash when asked at the end of the installation

    - launch codescape
    - select in the menu: File - Save Binary
    - Choose a filename
    - Start Address: 0x00000000
    - Length: 0x00200000
    - Confirm that you want to download 2 megabytes
    - click OK
     
    T_chan, Nov 24, 2011 Report
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  8. -=FamilyGuy=-

    -=FamilyGuy=- Site Supporter 2049

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    This is indeed the best way to do it. I never had a DevKit so I didn't know you could do that. My trick would work, but it'd be rather useless as you can do the T_chan method easily, it could be useful to dump a beta gd-r through serial though.

    FG
     
    Last edited: Nov 24, 2011
    -=FamilyGuy=-, Nov 24, 2011 Report
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  9. alex81

    alex81 Rising Member

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    Maybe someone can dump BIOS from post 2000 dreamcast (MIL-CD uncompatible revision)?
     
    alex81, Dec 4, 2011 Report
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  10. LeGIt

    LeGIt I'm a cunt or so I'm told :P

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    The Katana BIOS/firmware are located inside the R9/10/11 and the WinCE Dragon SDK - no EPROM dump is required. If there is no change in either of these revisions then thre probably isn't much to discover.
     
    Last edited: Dec 6, 2011
    LeGIt, Dec 6, 2011 Report
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  11. segaloco

    segaloco Enthusiastic Member

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    Yeah, I was about to say, if discs offered firmware updates then the bios would be in binary format on the SDK discs. Now what I have to wonder is the other versions of the discs floating around undumped, do they have earlier versions of the firmware, there had to be updates shipped for them to logically include a firmware update tool :U
     
    segaloco, Dec 12, 2011 Report
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  12. l_oliveira

    l_oliveira Officer at Arms

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    From what I saw on a copy of the SDK, the BIOS is contained within an updater program you're supposed to upload for the target box. :shrug:
     
    l_oliveira, Dec 13, 2011 Report
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  13. angelwolf71885

    angelwolf71885 Dauntless Member

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    so the SDK allows retail dreamcast bios to be updated?
     
    angelwolf71885, Dec 13, 2011 Report
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  14. Bad_Ad84

    Bad_Ad84 The Tick

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    No, this thread is about devkits - not retail.

    Retail uses a maskrom, it is not writeable.
     
    Bad_Ad84, Dec 14, 2011 Report
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  15. -=FamilyGuy=-

    -=FamilyGuy=- Site Supporter 2049

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    Old devkits can come with old bios if you don't update it tot he newest. This is the kind of bios he's interested.

    FG
     
    -=FamilyGuy=-, Dec 14, 2011 Report
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