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SCPCD

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Posts posted by SCPCD

  1. So It's Time To Go To Heaven !!

    in Jaguar

    Posted

    OK I'm still a little confused though, basedon some of the discussins on AA.

     

    Is this processor intended to work in tandem with the Jag's own procesors? or be used instead of them... with the Jaguar being used as basically I/O for it?

    The JagCF DSP is designed to relieve the jaguar for hard and difficult work and also for CF management (multistreaming with very high speed data rate for exemple).

    It is not designed to replace the jaguar's own processors.

  2. So It's Time To Go To Heaven !!

    in Jaguar

    Posted

    Will it have its own RAM and/or access Jag Ram?

    The DSP have is own RAM and can execute code from the JagCF SDRAM (he have an instruction cache).

    It's impossible for external processor or others to access the jag internal ram as master.

    How will the BUS be arbitrated... I'm not seeing how this works... can you elaborate?

    There is a bus controller into the jagcf and two internal bus : one intended for configuration or slow peripheral, and the other for high speed data rate (SDRAM access, DMAs...)

    The priority is for the Jag because it's impossible to add wait states on jag cartridge port (the wait pin on the cartridge port don't work correctly). But I have designed and optimised the jagcf bus controller to lost the less time possible on the jagcf bus. So a jag access take only about 4ticks @96MHz.

  3. So It's Time To Go To Heaven !!

    in Jaguar

    Posted

    Hi !

     

    So when is the CF estimated to ship?

    The shiped date is not available but one thing is sure : this is for this year.

    Will it run ROM images or not?

    For this, I will see later on, because it's not the priority, I have more important things to work on, and both solution : allow or disallow cartridge "emulation" will take very little time for me.

    Price?

    The price is not yet available, but will be soon (I hope in 4-5 month for the first production)

    I (and Zerosquare) work on tools for developers, on documentations, exemples and also we organize everythings for the production.

     

    Cheers.

  22. Le UART bug ...

    in Development

    Posted

    If you guys, a whole community of programmers, cannot figure out what one man did on his own in a relatively short time and have to resort to downloading illegal ROMS, Disassembling and stealing his hard work because you guys aren't good enough to figure it out on your own then shame on all of you.

    Hi !

     

    Sorry about that, but I think that there is a misunderstanding.

    All things said before was only a "and if we made this" and a global information about law of reverse engineering and not a real temptation to reverse engineering BS or AirCars for exemple to copy the serial protocol of these games.

     

    We prefere all to find and create our own serial protocol to correct the Jaguar UART bug, but we haven't yet the time to search about that.

    So that's why we said just crazy idea ;)

     

    Regards,

    SCPCD.

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