On Sun, Nov 29, 2009 at 6:53 PM, David Brownell <davi...@pacbell.net> wrote:
> On Sunday 29 November 2009, Ųyvind Harboe wrote:
>> I have seen that some users feel very strongly about erasing
>> particular banks and sectors and writing to these sectors, rather
>> than using addresses. I have never fully understand why they
>> feel so strongly about going the way of banks instead of addresses,
>> but the fact of the matter is that they do.
>
> With NAND it's easy to see why they won't use CPU addresses. :)
I was going to write something about devices that are not
addressable, but it seemed like a non-sequitor.
> In general, using { bank, sector } addressing gives finer control
> over the actual chip resources, and is less error prone, even for
> NOR flash. You kind of want to avoid accidentally erasing (or
> even protecting) the wrong data.
As I said: some people feel strongly about using banks and
I think it is reasonable to support that approach as a
first class citizen approach :-)
--
Øyvind Harboe
US toll free 1-866-980-3434 / International +47 51 63 25 00
http://www.zylin.com/zy1000.html
ARM7 ARM9 ARM11 XScale Cortex
JTAG debugger and flash programmer
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