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

Sending CMD0 with chip select(0) alone does not initialize the card in SPI mode. This only sets SPI mode. Card is not initialized until ACMD41 returns accepted. Then CRC is off by default.