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RE: FAT16 for eCos


Hi Gary,
I will do this in a day or 2 . Nice if you can incorporate this for others
to use.
regards
ramana

-----Original Message-----
From: Gary Thomas [mailto:gary@chez-thomas.org]
Sent: Wednesday, June 19, 2002 6:12 PM
To: ramanabv@danlawinc.com
Subject: RE: [ECOS] FAT16 for eCos


On Wed, 2002-06-19 at 01:24, ramanabv@danlawinc.com wrote:
> Hi,
> I can post you the code (Fat16) we have developed and are using. While I
can
> say it is working fine, I can't guarantee that it will work straight out
for
> you and you may need to adapt it. It does have short comings - there is no
> caching etc. 
> There is no support for Fat 12 ( I think) and Other Fats.
> We are using this with PCMCIA compact Flash with ATA command set
(Sandisk).
> So let me know if any one is interested.
> regards
> Ramana B.V
> Danlaw Technologies India Ltd
> 43 Sagar Society, Road No 2 Banjara Hills
> Hyderabad - 500034
> India
> http://www.danlawinc.com
> 

This would be very interesting.  If you wouldn't mind sending it to me, 
I'll give it a look and see what it will take to get it into the main
sources.

(In case you aren't aware, I am one of the main developers of eCos and 
have such access to the repository)

> 
> 
> -----Original Message-----
> From: brenner joel [mailto:joel.brenner@tchip.com]
> Sent: Wednesday, June 19, 2002 11:46 AM
> To: James.Harris@tekelek.com.au
> Cc: ecos-discuss@sources.redhat.com
> Subject: Re: [ECOS] FAT16 for eCos
> 
> 
> James.Harris@tekelek.com.au wrote:
> 
> >Hi Joel,
> >
> >I am just about to start on a CompactFlash data logger and will be using
> >FAT12/16 formatting.
> >I am not familiar with the term "MultiMediaCard" (I'm new to flash
cards).
> >CompactFlash cards have IDE interface logic on them. SmartMedia cards
have
> >contacts like a mobile phone SIM card that simply contains a couple of
> >flash dies.
> >Is the MultiMediaCard you speak of a CompactFlash or SmartMedia card or
> >
> >something else?
> >
> A MultiMediaCard (digital cameras and MP3 players often uses MMC cards) 
> is similar to SmartMedia but have a serial interface witch make it
> a good solution for high capacity storage device for small uC based
systems.
> The 3 
> wire interface can be used in two manners: SPI communication or MMC
protocol
> communication.
> The first one reaches 1 Mb/S the seccond one 20 Mb/S but requires a
> dedicated interfacing 
> component witch at the moment isn't available, so you have to implement it
> on a FPGA or 
> emulating it by SW. The next generation of MultiMediaCards are called SD
> Cards.
> 
> >
> >
> >I have started looking around for FAT12/16 code. According to the FAT
spec
> >(from the MicroSoft website) a lot of code out there works but is broken
in
> >common ways.
> >I'd also be interested in an eCos FAT12/16 driver if you manage to find
> >one, and I'll let you know if I do find one first.
> >
> >Cheers,
> >
> >James
> >
> If I find one I'll send it you, but I think that there aren't. You can
find
> an example of FAT12/16/32
> at http://freedos-32.sourceforge.net/fat.html
> 
> >
> >
> >
> >|---------+------------------------------------->
> >|         |           brenner joel              |
> >|         |           <joel.brenner@tchip.com>  |
> >|         |           Sent by:                  |
> >|         |           ecos-discuss-owner@sources|
> >|         |           .redhat.com               |
> >|         |                                     |
> >|         |                                     |
> >|         |           19-06-2002 12:45 AM       |
> >|         |                                     |
> >|---------+------------------------------------->
> >
>
>---------------------------------------------------------------------------
> ---------------------------------------------------|
> >  |
> |
> >  |       To:       ecos-discuss@sources.redhat.com
> |
> >  |       cc:
> |
> >  |       Subject:  [ECOS] FAT16 for eCos
> |
> >
>
>---------------------------------------------------------------------------
> ---------------------------------------------------|
> >
> >
> >
> >
> >Hi all,
> >
> >I am new to eCos,
> >I've to add a MultiMediaCard Driver to eCos. The driver works fine but,
> >to make the MMC readable for "standard" MMC readers,
> >a FAT12/16 file-system should be used.
> >Is there someone who has wrote a FAT16 support for eCos? If yes, it
> >would be possible to receive the necessary source code ?
> >
> >Best regards, Joel Brenner
> >
> >
> >--
> >Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> >and search the list archive: http://sources.redhat.com/ml/ecos-discuss
> >
> >
> >
> >
> >
> >
> >
> >
> 
> 
> 
> 
> -- 
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
> 
> -- 
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss


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