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Re: SPI/MMC example - anyone got this to work?

2006-03-17 by ah_sandiego

Thanks for all the responses.

So if I have read correctly, the code in the APP NOTE should work? I 
simply cut and pasted the code, it compiled, but didn't work. I know 
that is a very vague description, but I don't have much time to 
debug it, so I thought I would ask first if others have gotten it to 
work.

If you say it is working, I will post a more detailed description of 
the problem I am having.

Secondly, the card I am using is a 16Meg SD Card. It works since I 
can use it with my Pocket PC. I don't mind if the APP NOTE writes 
raw data to it (or whatever it is doing), but for the time being I 
want to access it in SPI (1 bit bus) mode, not the SDIO (4 bit bus). 
Can this be done?

Thanks,
AH

--- In lpc2000@yahoogroups.com, Robert Adsett <subscriptions@...> 
wrote:
>
> At 06:44 PM 3/16/06 -0500, Tom Walsh wrote:
> >philips_apps wrote:
> > >    The source in SPI/MMC app-note has been fixed, retested, and
> > >updated long time ago, the following week after you pointed out 
the
> > >error.
> > >    Thanks you very much for your suggestions and active
> > >participation to improve our products!
> > >
> >Hmm, wonder why his app won't work?
> 
> Perhaps because he's using SDIO?  The SPI mode is optional even 
for MMC 
> cards although I think most implement it, my impression was that 
SDIO 
> didn't use it at all. (Non-IO SD cards are another matter)
> 
> Robert
> 
> " 'Freedom' has no meaning of itself.  There are always 
restrictions,   be 
> they legal, genetic, or physical.  If you don't believe me, try to 
chew a 
> radio signal. "  -- Kelvin Throop, III
> http://www.aeolusdevelopment.com/
>

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