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Recent content by aethor

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    How to use VHDL mode in OrCAD 16.0 ???

    If I'm not mistaken OrCAD supports VHDL-AMS, which is an extension of VHDL language for modeling in both digital and analog domains. This models don't apply only electrical signals (logic values, voltages and currents) but other parameters such as temperature and power. I would suggest, as...
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    PPC440 virtex-5 and ICAP interfacing

    Hi lahrach, The first thing for you to know is to use Xilinx's XPS (EDK). If you are not familiar with it follow some tutorial searching in google. If your doubts come from the bitstream format the document to read is the Virtex-5 Configuration Guide. Info in this way is a bit confusing, I'd...
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    PARTIAL RECONFIGURATION OF FPGA

    There are plenty of papers about this issue. If you're going to use Xilinx tools you could take a look into 'HWICAP' datasheet. Look also at "WhichEverFPGAItIs Configuration Guide".
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    how to connect PowerPC440 with ICAP

    In XPS look at the IP catalog, there should be a peripheral called 'hwicap'. That's the one you need.
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    need a tool to open .bit file

    I don't really know but it seems so.
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    Sin & Cos Functions in VHDL

    I know this is an electronics forum, but don't forget about math! The first formula is correct but not the second(and even less the third). This is the correct version of the second formula: (cos A)^2 = 1 - (sin A)^2
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    Built in Self Test of FPGA

    It depends on which FPGA you're going to use. I imagine you're using a Xilinx one ("a single CLB"). If that's you're case i would suggest you to use EDK's HWICAP peripheral (if compatible). Take a look into the SW drivers and you'll find something to read from a single CLB. Hope it helps you
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    Bitstream format and how it is organized within the FPGA

    Virtex-5 configuration guide explains the configuration memory addressing and how it corresponds to the FPGA layout, but of course it doesn't explain the internal correspondence between bitstream and logic blocks.
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    Configuration format for Virtex 5 devices

    The words stored in the .bit file are NOT swapped yet. But the bit swapping you're showing in your post is not right, bits are swapped in every byte independently from the others. In your example you would swap AA, 99, 55 and 66 and put them together again: AA->55 99->99 55->AA 66->66 This...
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    need a tool to open .bit file

    Just open it with some bit-wise text editor (like ultraedit). The info inside corresponds directly with the configuration frames detailed in Virtex-5 Configuration Guide (I always reply you with the same phrase :D)
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    PPC440 virtex-5 and ICAP interfacing

    Just use it like any other peripheral. If you have any doubts about the bitstream format there are several examples in Virtex-5 Configuration Guide
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    ICAP Controller Instantiation Problem

    Hi Richard, Have you tried filling the ICAP with some dummy words before sending the SYNC word? I'm not sure about this but I think the controller must have a kind of input buffer. By the way, you need to do bit swapping but at byte level: you swap bits in each byte independently from the rest...
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