* [ECOS] Problem Programming Flash
@ 2007-08-06 11:37 Paul Magee
2007-08-06 11:48 ` Andrew Lunn
0 siblings, 1 reply; 2+ messages in thread
From: Paul Magee @ 2007-08-06 11:37 UTC (permalink / raw)
To: ecos-discuss
I'm currently trying to write to flash using flash_program(), on a board
that is derived from the A&M Python PowerPC board. The flash chip is the
Spansion S29GL512N.
The problem is that if I try to write data >64K, the call to
flash_program() returns out with the error that the driver has timed out
waiting for flash. If I program in small chunks, it writes fine up until
I have written 64K, then it returns the same problem.
Is there a limit on what you can write using flash_program()? I have
checked the documentation and not noticed any. Or is there anything else
I am doing wrong?
Thanks in advance
Paul
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [ECOS] Problem Programming Flash
2007-08-06 11:37 [ECOS] Problem Programming Flash Paul Magee
@ 2007-08-06 11:48 ` Andrew Lunn
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Lunn @ 2007-08-06 11:48 UTC (permalink / raw)
To: Paul Magee; +Cc: ecos-discuss
On Mon, Aug 06, 2007 at 12:37:27PM +0100, Paul Magee wrote:
>
> I'm currently trying to write to flash using flash_program(), on a board
> that is derived from the A&M Python PowerPC board. The flash chip is the
> Spansion S29GL512N.
>
> The problem is that if I try to write data >64K, the call to
> flash_program() returns out with the error that the driver has timed out
> waiting for flash. If I program in small chunks, it writes fine up until
> I have written 64K, then it returns the same problem.
>
> Is there a limit on what you can write using flash_program()? I have
> checked the documentation and not noticed any. Or is there anything else
> I am doing wrong?
How big are the flash pages? I wounder if there is a bug/problem when
going over a page boundary?
Andrew
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