[Bug 1001561] Internal flash driver for Freescale TWR-K60N512 board

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--- Comment #23 from Nicolas Aujoux <nau@csm-instruments.com> 2012-06-21 08:00:56 BST ---
(In reply to comment #21)
> Hi Nicolas
> 
> I'm sorry for late reply, but I was busy. I tried to disable keeping Redboot
> configuration data in FLASH bit it still raises exception. Can you post your
> ECM file?

No problem. I posted a working for me configuration. I hope this works for you
as well.

> 
> (In reply to comment #20)
> > Hi Ilija,
> > 
> > I have made some tests and in order for the driver to work, I desactivated the
> > "Redboot FIS support" (in Redboot ROM monitor -> Allow RedBoot tu support FLASH
> > programming) and desactivated the "Keep Redboot configuration data in flash"
> > option.
> > When this options are enabled, Redboot try to read a portion of flash  (with a
> > memcpy) which leads to a problem.
> 
> Have you tried with cyg_flash_read()? It is recommended in manual and I would
> recommend too.

I found out something about that : it seems to come from th "Flash block
containing the directory" option which has the value "-1". This value should
correspond to the last block of flash but when I put the value to 2, I get a
prompt and the fis command (even if it still crash when I do a fis init).

> 
> > 
> > I also try to move the CYG_FLASH_DRIVER into a new kinetis_flash.c file and add
> > it to the file to be compile in the .cdl file. Redboot builds fine with it but
> > when I launch it, it seems that there is no flash init done. I'll keep working
> > on that but if you have any idea of what I am missing ...
> 
> Probably the object file containing CYG_FLASH_DRIVER has been discarded by the
> linker since effectively there aren't references to it.
> If the driver is general for all Kinetis devices you can leave it in
> kinetis_misc.c or put it in kinetis_flash.inl and include in kinetis_misc.c.
> Otherwise you can put copies in platforms (see STM32 for example). However
> driver inclusion for compilation should be conditional with some #ifdef.

So I let it where it is for the moment. Thanks

> 
> Ilija

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