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RE: [lpc2000] Re: SPI/MMC example - anyone got this to work?

2006-03-17 by Michael Anton

Hi,

I have had good luck using the EFSL library for interfacing to
SD cards.  It is open source, seems to be well supported, 
there is a port for the LPC2000 series, and the performance is decent.

It was not difficult to get up and running, and compiled fine with GCC.

You can find it here: http://sourceforge.net/projects/efsl/

I hope this helps,

Mike

> -----Original Message-----
> From: lpc2000@yahoogroups.com 
> [mailto:lpc2000@yahoogroups.com]On Behalf
> Of ah_sandiego
> Sent: Friday, March 17, 2006 11:06 AM
> To: lpc2000@yahoogroups.com
> Subject: [lpc2000] Re: SPI/MMC example - anyone got this to work?
> 
> 
> 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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>

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