Hello

Sorry about taking long to answer this. Unfortunately this ended up in my spam 
folder.


On Monday 01 June 2009 18:16:37 Ñî±ê(Vinge) wrote:
> Hi all:
> 	I just port yaff2 to ucos in direct mode with a 2k page 512m nand flash.
> But as user of my device like to just shutdown the power. yaffs2 file
> system is most likey not been unmount!

> Is there a method to sync cache to 
> nand? Or how can I just provent lost the cache data to be lost in poweroff?
> Should I close the file every time after write to it?

If you close a file then it will be fully flushed to flash.
yaffs_flush() will also flush the file without closing it.

> Or event unmount and remount the dev?

You do not need to do that.

-- Charles