Re: Best low cost uP for full Linux
- From: m <martin.usenet@xxxxxxxxx>
- Date: Fri, 26 Sep 2008 07:27:33 -0700 (PDT)
"just buy a tiny form factor PC"
That would be an obvious choice if one was after a small Linux box.
However, this is going to be part of a product and, as such, there is
no way to include a small PC in it. My build cost needs to be in the
$100 (USD) range at most.
Since the other part of the design will have a large Xilinx FPGA the
right approach could very well be to use Microblaze and implement the
Linux subsystem that way. Frankly, to me it seems like it would be
using an expensive FPGA for the wrong purpose. You still need the
SDRAM, FLASH and any supporting I/O bits. So, the only "savings"
would be not having to buy a separate processor. If it is true that
something like that '5329 can be had with a MMU, then pricing for the
processor might be in the $15 to $20 range. I'm not sure that it
makes sense to implement Microblaze and use-up valuable high-speed
FPGA resources to save twenty bucks. But I could be wrong...
-Martin
.
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- Best low cost uP for full Linux
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