Re: [ECOS] About FAT16/32 FileSystem in eCos

[Andrew Lunn <andrew at lunn dot ch>]

On Thu, Aug 28, 2008 at 02:02:48PM +0900, ariga masahiro wrote:
> Hello everyone,
>
> We are looking forward to port eCos into Renesas H8S CPU target.
> We are not certain about FileSystem(FAT16/32) supported by eCos.
>
> We found next information on eCosPro Reference Manual sites.

The closed source eCosCentric version of a package sometimes has
extensions etc. In this case, FAT does have extensions...

> Are these writings also applied to free-eCos CVS version(I mean,not  
> eCosPro)?
> Does Free-eCos CVS version support these?
>
> -About FAT16 and FAT32 Support,
> "The FAT filesystem supports FAT12, FAT16 and FAT32 disk formats

Yep. The open source version supports this.

> and Long 
> Filename Support is available as a configuration option."

Long file names are not supported. You also need to dig into the
patent issues if you want long file names.

> http://www.ecoscentric.com/ecospro/doc.cgi/html/ecospro-ref/fatfs-intro.html
>
> -About Removable Media Support,
> Chapter 9. Removable Media Support
> "At present, only the JUNGO USB mass storage device contains the 
> necessary support."
> http://www.ecoscentric.com/ecospro/doc.cgi/html/ecospro-ref/fatfs-removable.html
>
> I am sorry we do not know JUNGO USB mass storage device.

JUNGO is a commercial USB stack which eCosCentric have ported to eCos.
Using this stack it seems you can use USB storage devices. 

> For example,using eCos,is it possible to copy files to USB removable 
> memory (is it called thumb memory) ?

Not with the open source version. If you need this you would want to
license eCosCentric's version. 

Alternatively, CompactFlash cards should work with the open source
version.

        Andrew

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