On Apr 11, 2010, at 2:59 AM, Stephan Boettcher wrote: > John Luciani <jluci...@gmail.com> writes: > >> On Sat, Apr 10, 2010 at 6:58 PM, DJ Delorie <d...@delorie.com> wrote: >>> >>>> I can think of a few uses for your USB GPIO pod!-Patrick >>> >>> I use it mostly for testing out new components. I have added a >>> micro-sd module for it, and most recently it's wired up to a new >>> ethernet chip from micrel. >> >> Do you have uSD code working? I have tried a couple >> of different cards and have had no luck getting them working on >> the SPI port. I looked at the timing of the CS, MOSI and SCK. >> All look good but I don't get a response on the MISO line. >> I have looked at the spec and I believe I am sending the proper >> command bytes. Any info would be appreciated. > > microSD are not required to support the SPI protocol. Do they usually > do? What brands?
Interesting. I've tried a half-dozen different brands and haven't had any trouble with SPI support. Sandisk, Kingston, PQI, no-name from Deal Extreme, etc. If you're interested though, it seems that brand-name doesn't mean much. Even some of the big sellers are often re-branded from whatever's cheapest in China this week: http://www.bunniestudios.com/blog/?page_id=1022 Eric _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
