SPI Compatibility of old card

I have an old 512MB SanDisk micro SD card and can’t get it to respond to SPI CMD0. No response at all. First question is whether this card has the SPI state machine at all?

Yes The card has SPI state machine.:smiley:

Hi, I have an micro SD 2GB and I need to read data with SPI. The problem is MISO is always 0. No connections problem. The card is okay(I can read/write files on it with the PC).

Do you have any idea why i have no answer from card?