SirNickity:
smeezekitty:
The protocol used on SDHC is different not backwards compatible.Ehh... in all our cases, we're using the SPI fallback protocol anyway. That is a non-optional part of the SD spec. The only thing that differs is the initialization sequence and how blocks are addressed. It would be foolish to implement a design that didn't interrogate the card to ensure the right method was used, so I don't see backwards compatibility suffering any time soon.
If I'm wrong, I'd love to hear the opposing viewpoint.
It looks like you are right, I had no idea it's backwards compatible. Indeed latest WaveHC library for example does support SDHC cards! 