Hi All,
Thanks a lot.
With the below code I am able to read only 112KB of data. "while" loop
executes only for 28 times. I tried to debug the yaffs_read function, for
successful iteration obj->variantType is YAFFS_OBJECT_TYPE_FILE, but it is
coming out from while loop when obj->variantType resets to 0x3C038832.
I am not able to find the root cause. Please help to fix this issue.
Thanks in advance.
Regards,
Saquib
On Thu, Jun 17, 2010 at 7:59 AM, Charles Manning <
manningc2@actrix.gen.nz>wrote:
> On Thursday 17 June 2010 14:17:14 Saquib wrote:
> > Hi All,
> >
> > Thanks for your support and coperation.
> >
> > I am able to read files using YAFFS Direct interface.
> >
> > Now I want to copy a binary file e.g. XYZ into RAM's specified address.
> >
> > How can I get the start address of file XYZ on NAND flash with file-size
> > (EOF)?
>
> YAFFS is a file system so you need to do this using file system calls. You
> cannot do a binary copy fromflash.
>
> You need to do something like this:
>
> unsigned char *buffer;
>
> int load_handle = yaffs_open("filename",O_RDONLY,0);
> buffer = (unsigned char *) load_address;
>
> while ((nread = yaffs_read(load_handle,buffer,4096)) > 0)
> buffer += nread;
>
> yaffs_close(load_handle);
>
>
> > Thanks in advance.
> >
> > Regards,
> > Saquib
> >
> > On Mon, Jun 14, 2010 at 2:59 AM, Charles Manning
> <manningc2@actrix.gen.nz>wrote:
> > > On Friday 11 June 2010 00:27:31 Saquib wrote:
> > > > Hi All,
> > > >
> > > > Thanks for your continued support and cooperation.
> > > >
> > > > I am using 1GB NAND Flash. From Linux, I created four partitions of
> > > > 256MB each and mounted YAFFS2 on four directories /mnt1, /mnt2, /mnt3
> > > > and /mnt4 respectively.
> > > > *
> > > > /mnt4 folder may contain some executable images.* *From boot-loader I
> > >
> > > have
> > >
> > > > to run this executable image.*
> > > >
> > > > My queries are :
> > > >
> > > > (1) Using YAFFS2 Direct Interface can it be achieved?
> > >
> > > Yes you can write files in YDI and read it in Linux, or vice versa.
> > >
> > > > (2) Can I create partition from YDI?
> > >
> > > Yes.
> > >
> > > > (3) Partition sizes should be same as Linux?
> > >
> > > Yes.
> > >
> > > > (4) If yes, how can I access same file which was saved from Linux?
> > >
> > > Have you read the information on YAFfS Direct?
> > >
> > > http://yaffs.net/yaffs-direct-user-guide
> > >
> > > -- Charles
> > >
> > >
> > > _______________________________________________
> > > yaffs mailing list
> > > yaffs@lists.aleph1.co.uk
> > > http://lists.aleph1.co.uk/cgi-bin/mailman/listinfo/yaffs
>
>
>
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