[En-Nut-Discussion] Write to flash in Ethernut 3

[Harald Kipp]

There's currently no API available.

The JTAG-O-MAT package
http://sourceforge.net/projects/jtagomat
contains FLASH erase/write routines in
target\arm7tdmi\flasher
which can be used in Nut/OS applications.

For now all Nut/OS applications are either loaded from FLASH
into RAM or bootloaded into RAM before execution. Thus, an
application will currently not occupy more than 256k.

Later versions may of course support running directly from
FLASH. Actually this requires a just a different linker
script and startup file.

In general it's up to the application how to make use of
the FLASH memory.

Harald

At 18:00 08.03.2006 +0100, you wrote:
>Hi all:
>
>I've been working with Ethernut 2 for a time, and now I want to upgrade
>some systems to Ethernut 3. But in the old systems I use the external
>521Kbytes Flash to store data. How can I write data to the 4Mbyte Flash
>chip availabe in ethernut 3? I now that it can contain the code being
>executed, so how can I now the current size to be sure I don't overwrite
>it with my data?
>
>Thanks in advance.