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Minimal system for at91sam9*   Topic List   < Prev Topic  |  Next Topic >
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Re: [AT91SAM] Re: Minimal system for at91sam9*

On Tue, 10 Nov 2009 04:42:10 -0000
"gnuarm" <gnuarm.2006@...> wrote:
> I suggest that you research this in the errata. I remember that the
> earlier SAM9 parts could not boot from several devices that were
> listed as boot devices in the data sheets.

Yes. We had this problem with AT91SAM9261 parts. We had to find "B"
revision parts to boot off the NAND.

Dan



Tue Nov 10, 2009 3:55 pm

danlyke
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I'm looking into running a minimal at91sam9 . I've been trying to figure out how much minimal resources it would need to be reliable. + 16 or 32B SDRAM for...
M P
buserror_uk
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Nov 9, 2009
3:00 pm

I did a project for a customer, with: 32MBytes of SDRAM. 4MBytes of dataflash for u-boot(?)+kernel+initrd Hope this help....
Paulo Silva(OpenSoftw...
ppsilva
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Nov 9, 2009
4:41 pm

Hi, 16/32 MB of SDRAM should be perfect. Try using 8/16MB of serial data flash instead of NOR flash.I think AT91sam9 is capable of booting from dataflash. ...
vishnu Tadepalli
vishnu_tadep...
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Nov 10, 2009
1:11 am

I suggest that you research this in the errata. I remember that the earlier SAM9 parts could not boot from several devices that were listed as boot devices in...
gnuarm
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Nov 10, 2009
4:42 am

On Tue, 10 Nov 2009 04:42:10 -0000 ... Yes. We had this problem with AT91SAM9261 parts. We had to find "B" revision parts to boot off the NAND. Dan...
Dan Lyke
danlyke
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Nov 10, 2009
3:57 pm

Hi guys... Why using nand seems to be prefered than using dataflash? Speed? PSilva...
Paulo Silva(OpenSoftw...
ppsilva
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Nov 10, 2009
4:09 pm

What do you mean by "dataflash" ? SPI ? Well SPI ones are tiny, compared to the gigantic NAND you can get for cheap... Michael On Tue, Nov 10, 2009 at 4:07 PM,...
M P
buserror_uk
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Nov 10, 2009
4:31 pm

Yes, If you boot on embedded ROM. it supports dataflash (not Atmel's at25/26df series), nandflash, SD. Weiguo ________________________________ From:...
Chen, Weiguo (GE, Res...
heartit2001
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Nov 10, 2009
4:43 am

Thanks guys; so it seems it's a better deal to boot from NAND directly. Does anyone know of a devboard (apart from the -EK) using the G20 in that "minimalist"...
M P
buserror_uk
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Nov 10, 2009
9:07 am

Hi, take a look at PROPOX. http://www.propox.com/products/t_232.html Regards Noel. ________________________________ From: AT91SAM@yahoogroups.com...
Vellemans, Noel
noel.vellemans
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Nov 10, 2009
10:27 am

... If you need smallest physical size, then you can go with Atmel Serial DataFlash. NAND-Flash provides the highest amount of storage in a small space. The...
sbmeirow
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Nov 16, 2009
3:25 pm
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