Wednesday, October 26, 2005

The return of the DSP

Apperently, ther DSP wasnt such a stupid idea after all. Anyways, it would have been-if Palm would have been able to release the documentation for the Tungsten T series DSP. Anyways, those days are gone-but BroadCom now targets mobile phones with a new multimedia processor(that essentially is a DSP).
The BCM27xx fasmily recently got new members that can do the following:

  • H.264 CIF video encoding/decoding at 30 frames per second and TV output
  • Support 5mpixel cameras
  • Do VGA MPEG4 video
  • All members of the family are software compatible

Do you beleive that DSP's have a future? Or do you beleive that rising CPU performance and lack of SDK's will kill those cores on the long run?


Blogger Ben Combee said...

There were good reasons for Palm not to support end-user development for the DSP on the OMAP chips:

Primarily, it would cause software to be created that relied on the OMAP. That would have to be rewritten if Palm switched to a non-OMAP solution. They actually did move away from OMAP -- right now, all Palm devices are either using a version of the Intel XScale chip or the integrated Samsung ARM ASIC.

For a similar case, look at right now. Palm doesn't really support using the Wireless MMX instructions of the XScale chips in end-user apps. We may be using them in internal code -- the Intel-supplied video codecs, for example -- but we don't want apps to be locked to the XScale when we change suppliers, like we did with the Z22 device.

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