Hm. You can't get all of the tables in there? Most of them are constant
(make sure they're declared that way) and should go in instruction
memory rather than BSS or stack. I might have to revise what I say about
codec2 and small processors.
TI claims that one of the Sitara lineup would be available for $5 in 10K
quantities. But I've seen no disclosure of which one this is supposed to
be. Digikey shows them starting at $20.
Thanks
Bruce
On 4/23/2013 1:28 PM, Shane Burrell wrote:
All of the Sitara lineup do have FPU but do not include the TI DSP.
You will have to step up to OMAP platform for that. Any of the linux
based offerings at this point have plenty of power to process a codec2
stream. How many of you are more interested, as I am, in getting
this consistently working on smaller MCU's with FPU? I've been
working with the STM32F4 but its hard to meet the current codebases
memory requirements etc without adding additional RAM. Ideally I
want this to fit inside a MIC or in a small box next to my radio.
On Tue, Apr 23, 2013 at 4:05 PM, Bruce Perens <[email protected]
<mailto:[email protected]>> wrote:
On 4/23/2013 12:54 PM, Curt, WE7U wrote:
> On Thu, 18 Apr 2013, Kristoff Bonne wrote:
>
> Now there's a BeagleBone for $45 too. I haven't looked at the
specs to see whether it has floating point, but maybe another
possibility?
>
> 1GHz Cortex-A8, 2GB on-board flash, microSD, microHDMI,
ethernet, $45:
>
> http://goo.gl/SsqE6
It's a Sitara, related to the one in our AM335x starter kit which
we'll
be showing at Dayton, except that the starter kit has a touchscreen,
bluetooth, and wifi. I think the BeagleBone Black has 4 processors on
chip: a Cortex A8 (which I think does have floating point), C7 DSP (OK
if you want to invest the time), two PRUs. A PRU is very simple scalar
in-order 32 bit processor with 4K program RAM and the ability to
access
all of the on-chip peripherals and to share a pair of mailbox
registers
and some RAM with the main processor. It does the real-time and
sleep-mode jobs more efficiently than the main processor.
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