Do Sandisk microSD and microSDHC cards support SPI mode access?

This is for an embedded application. SPI support is optional on microSD, so I’m wondering if SanDisk’s offerings support SPI mode access.


If you want I send all my embedded source files to you about doing SPI-communcation with a micro-sd card, I implement  additional retry mechanisme and so on.

Also if you haven´t and goes design your schematic provide a additional power off/on fet for the micro-sd.

Somethings the Sandisk is hanging and only a power off/on give a solution to get back in communication with de micro-sd

micro-sd cards from Samsung or other manufactors does have such problems in SPI-mode.

Reg, pmoonen