MQX Software SolutionsのトピックRe: MFS on nandflash, MQX3.7

MFS on nandflash, MQX3.7

Rpalenci — Fri, 27 Jan 2012 20:20:05 GMT

Hello,

I have a twrmcf54418 and I am trying mount mfs on a partition of
nandflash.

mqx_status=_io_part_mgr_install ( nandflash_hdl, "PM:",
528);
dev_fd_PM = fopen("PM:", NULL);

Function fopen always return NULL.
Is it possible mount mfs on one partition of nandflash?

Re: MFS on nandflash, MQX3.7

Rpalenci — Sat, 04 Feb 2012 00:00:13 GMT

Hello,

I am stopped on my project because this problem. And now, I beginning to think it is impossible mount a filesystem with MQX on nandflash.

Nobody knows anything about it?

Thanks in advanced.

Best regards.

Re: MFS on nandflash, MQX3.7

c0170 — Tue, 07 Feb 2012 23:58:52 GMT

Hi Rpalenci,

MFS (FAT) is absolutelly not suitable system for flash drivers. Unfortunatelly, there is no alternative.

Can you find out the reason it failed?

Regards,

MartinK

Re: MFS on nandflash, MQX3.7

alexandrevincon — Tue, 26 Mar 2013 15:04:50 GMT

Hello,

I would like to update this thread, since MQX 4.0 release notes state the following:

Ready for new Freescale NAND Flash File System library.

o The MQX 4.0 has been tested with the new FFS library which implements the wear leveling algorithms and support for on-chip NAND Flash controller.

o This library enables the MFS filesystem to be installed and used on top of the NAND Flash memory devices.

o The FFS library is available as a standalone installation package.

Unfortunately, I was not able to find any link to a so-called "Freescale NAND Flash File System library". All I could find where links to third-party commercial solutions.

Re: MFS on nandflash, MQX3.7

dereksnell — Tue, 26 Mar 2013 22:23:36 GMT

Hi Alexandre,

You can find the MQX NAND FFS available here for now: NAND Flash File System patch for Freescale MQX™ RTOS 4.0.0

Re: MFS on nandflash, MQX3.7

alexandrevincon — Wed, 27 Mar 2013 08:03:15 GMT

Great! Thanks a lot !

Re: MFS on nandflash, MQX3.7

oscargarciaabad — Wed, 07 Aug 2013 08:07:18 GMT

Hello,

I can´t find the FFS patch for MQX 4.0. The link above does not work for me. It says restricted access.

Where I can find it?

Best regards.

Oscar.