Need some advices

Sep 23, 2009 4 Replies
J

Hi folks, I'm looking for a micro controller for an embedded project. I need for this project 3 UARTs and an external memory controller for



1MBytes (probably RAM) but a DSP is not necessary because I'll not have to deal with heavy calculations.


I've found the Atmel SAM3U2C

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which seems pretty good for what I want to do but the status is on 'Sampling', could anyone tell me more about its commercialization.


The ST 32F101xC

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could also do the job but I'm a bit upset that the 'V' version could only manage Flash and PSRAM. Is PSRAM really obsolete?


I'll keep searching with others manufacturers but if you have some advices or brand in mind please tell me.


Cheers.



Ju


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T

Ask your local Atmel sales office...........

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U

ju skrev:

Not in production yet, but devkits has been around for 4 months so I think it is not very far away.

Do you plan to execute code from this SRAM or not?

I hear from the AT91 team, that Cortex-M3 does not excel when executing from external memory, and that the SAM7SE has higher bandwidth/throughput.

Anyone seen this in their own system?

BR Ulf Samuelsson

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J

only

Thanks for your reply,

No I do not plan to execute code from an external RAM, I just need some space to save datas. I just don't want to start the developpement with this PSRAM if I can buy it anymore in 5 years. I'll plobably chose a ST 32F101xZ one and use some SRAM.

Cheers

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A

I would take a look at the Cortex-M3 series from Luminary Micro. Do a quick search on their site and here is one of the devices can fulfill your need:

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