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On Sun, 2002-07-28 at 23:44, Motoya Kurotsu wrote: > Hi all, > > I guess that the reason why three functions of flash_query, > flash_erase_block and flash_program_buf should be placed in ram is > that the execution of those codes might overwrite themselves. > If my guess is correct, I think that _flash_query, _flash_erase_block and > _flash_program_buf should be also put in ram by the same reason. Actually the reason that these routines must run from RAM is to prevent accesses to ROM/FLASH during their execution. The routines you want to patch don't actually touch the FLASH space (except via the call to the _XXX routine that does the work), so they can reside anywhere. Your patch would have no effect - ill or positive. The question about overwriting the FLASH space must be managed outside these routines, e.g. by the RedBoot FLASH framework.
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