El 23/12/2010 05:24, Bob Bownes escribió:
ARM or other general purpose CPU is interesting, but at what cost for
complexity and/or software development? It would require RAM, IO
support, and boot rom at the very least. Not insurmountable, but at a
cost to complexity.
If you are not planifying to use an embedded operating system like
uClinux or embedded linux, no need for external RAM or ROM. There are
lot of ARMs from several manufacturers with 256kB flash and 64kB RAM or
more for <$20, with a nice set of peripherals (USB, UARTs, CAN, even
Ethernet without the need of an external phy). Software tools can range
from free (GCC + eclipse) to quite expensive (IAR).
If you plan to use an embedded operating system, then more RAM, more ROM...
We've an embedded processor board that includes a Blackfin, 16 or 32MB
flash, 32 or 64MB RAM and a 250,000 gate FPGA, and belive me, it is not
so expensive (and if it would be interesting for a project like this, we
could try to make a series with special time-nuts price)
http://www.hvsistemas.com/en/prod/H8606.html
Regards,
Javier
--
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Javier Herrero EMAIL: jherr...@hvsistemas.com
Chief Technology Officer
HV Sistemas S.L. PHONE: +34 949 336 806
Los Charcones, 17 FAX: +34 949 336 792
19170 El Casar - Guadalajara - Spain WEB: http://www.hvsistemas.com
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