1 Jul
2012
1 Jul
'12
3:30 p.m.
On 1 Jul 2012 at 18:03, Dave McGuire wrote:
They do. SD cards can also be accessed via a
four-bit-wide, much
faster interface that is proprietary and undocumented, or at least it
used to be. I'm sure the specs are floating around in the wild by
now, but the SPI mode works just fine, and is fast enough for many
applications.
SPI is pretty much guaranteed to work with any flavor SD card, since
it's documented. One other benefit is that it will also work with
MMC shoved into an SD socket.
(I do have a few MMCs kicking around)
--Chuck