On 9/1/07, Marcin Juszkiewicz <[EMAIL PROTECTED]> wrote: > Dnia sobota, 1 września 2007, Shawn Rutledge napisał: > > > What about the XScale accelerators? There was one designed > > specifically as a companion to the PXA270. Are they more open? > > Intel 2700G? It is closed - the only source released was mess afaik.
Apparently it's also discontinued. That's too bad. I see that a Spartan 3L (low-power version) would take several times as much power as the 2700G. The million gate one (to cut it down a bit, in comparison to which the OpenGraphics project is using the 4 million gate version) has quiescent current ratings of 35 mA for internal supply plus 20 mA for AUX supply. So if I understand correctly that is the minimum, if it's turned on at all. I suppose if you are actively doing something, it would be several times as much. The OpenGraphics board has a heatsink, after all. http://wiki.duskglow.com/tiki-index.php?page=OGD1 That's a bummer. I think programmable hardware would be an excellent way for open software to innovate right around the barriers of proprietary graphics chips. But I don't have any experience at all programming them yet. There is the NVIDIA GoForce 4800 and I don't see datasheets for it either. > SL-6000? Too bad that it was so pricey - community lack hackers which want > to get software support on them improved (OpenEmbedded project can even > provide one or two SL-6000 for such tasks). I'm still working with mine. Angstrom is working well enough to do the kind of hacking I want to do. I'm glad the 2.6 kernel is finally OK. On 9/1/07, Ian Stirling <[EMAIL PROTECTED]> wrote: > FPGAs of equivalent size are _NOT_ cheap, or low power. > I'd guess the SMedia chip is $20 or so. > Now, go and look for a low power FPGA with the thick end of a megabyte > of embedded RAM, and many thousand gates. It'll be at least $100, maybe > $200. That's how it used to be. A million-gate Spartan IIIE ranges from about $20 down to $7.90 at Digikey depending on the number of IO pins (I think you can easily get under $5 in volume). Power would be the problem with those chips. I wonder who's the low-power leader for FPGAs.
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