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Re: [ts-7000] NAND flash based vs NOR flash based

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Subject: Re: [ts-7000] NAND flash based vs NOR flash based
From: Christopher Friedt <>
Date: Wed, 17 Jan 2007 14:55:02 +0100
Hi James,

Neither of these boards will execute any code from flash as opposed to 
ram, that would hinder the processor drastically. I don't even think the 
processor supports program addressing in flash-based devices.

You're looking at nearly the exact same execution time. There would only 
be a very slight difference if one board had 32 MB sdram and one had 64 
MB sdram, since a board w/ 64 MB sdram has a dis-contiguous ram layout 
and thus would require a very very slight overhead in page table 
translation from virtual addressing -> physical addressing.

~/Chris

twhk2007 wrote:
> Hello all !
> 
> TS-7200 uses NOR flash while TS-7260 uses NAND flash. I know that the
> read time for NOR flash is faster than that of NAND flash. I will use 
> the board to do a lot of floating point calculations. Could you anyone 
> on the execution speed for these two boards ? Some people mention that 
> the code in NAND flash will be transfered to SDRAM during excution, so 
> the excution speed of a NAND flash-based board can be faster than NOR 
> flash-based board. Is this true for TS-7260 ?
> 
> Best regards,
> James
> 
> 


 
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