Initialization of a microSD card using an SPI interface

Question

I\'m using a microSD card in an embedded design. The card is connected to a microcontroller using the SPI interface. It worked fine for all cards I\'ve used before, but now my n

Answer 1

Insert several dummy SPI cycles after CMD55 (0xFF sent+received) and before CMD41.

I had to do this for both my old test cards - 16MB Panasonic and Sandisk 64MB.

Note: I realize I'm quite late to the party, but I'm hoping it may help someone in future.