AVR-Chat

Hi Tim,

Thanks again, that information is very good, the hex editor is also
exactely what I was looking for, that way I can "see" the structure of
the SD card.

Cheers
Hein B
Auckland
New Zealand.

--- In AVR-Chat@yahoogroups.com, "Tim Mitchell" <tim@...> wrote:
>
> AVR-Chat@yahoogroups.com wrote:
> > Hi Tim,
> > 
> > I cant help with your problem unfortunately, but am very
> > interested in  learning more about playing the .wav  files
> > from the storage media.
> > 
> > Do you access it using a fat file system and copy the wav
> > files in from a computer ?
> > 
> > What format of .wav file do you use ? 8 bit mono ?
> > 
> > Any online documentation regarding the structure etc of the files ?
> > 
> 
> Yes you copy the wavs onto the CF card on a PC and the micro reads the
> FAT16 filesystem. They are 8 bit mono wavs but the wav file format is
> very simple (when using uncompressed data) and it's just as easy to read
> 16 bit or stereo wavs. Locating whereabouts the desired file is in the
> FAT system is the hard bit.
> 
> http://www.sonicspot.com/guide/wavefiles.html is a good starter for wav
> files
> 
> http://www.dataraid.com/storage-u/fat12-fat16-fat32-file-system/ tells
> you about FAT
> 
> Winhex http://www.x-ways.net/winhex/ is a useful tool to show you the
> structure of the CF card (or a disk)
> 
> -- 
> Tim Mitchell
> tim@...
> http://www.sabretechnology.co.uk
>