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?

5 Comments:

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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