on another topic...
Robert E. Seastrom
rs at seastrom.com
Tue Jun 22 23:39:30 CDT 2010
what's the cost look like? one of the wins of stuff like the
charleston is < $250 out of the gate. still, if there is enough cpu
in there to run something like linux (or even, dare i hope, a
self-hosted build environment), it's a lot more fun to develop for...
hmmm... yes, i'd say i'm interested.
mo at ccr.org (Mike O'Dell) writes:
> i had a chat with the CEO of a firm in Montreal who makes
> a multi-core DSP which uses asynchronous logic in the
> DSP cores. the net result is incredible processing
> power with *tiny* power consumption. their new 24-core
> chip can do 64-72 users of G3/HSDP baseband processing
> (for cell sites) running at just a smidge over 2 watts.
> the cores themselves run at about 1.2-1.5GHz "logical
> clock speed" (since the logic in the cores is asynchronous,
> there is no "clock" in the usual sense for the cores.
> there is clock for the TDM interfacing at the edge
> of the part).
> there's also an ARM A11 in there, too, just for giggles.
> the best part is the interfacing - it has a GigE port
> integral to the chip, a PCIe interface, and high-speed
> serial ports designed for zero-glue interfacing to the
> high-speed ADCs used for cellular baseband processing.
> (Does the name Analog Devices ring a bell?)
> i'm thinking this could do something like a Quicksilver
> type SDR *without* needing the fpga and put the entire
> receiver in the chip, demod software and all, with just
> the ADC on the front end.
> i'm going to explore swinging some dev kits if people
> would like to goof on this.
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