Probably not all MicroSD cards support SPI
My microSD cards (> = 16Gb) also do not work with SPI
I use the SD <= 4Gb
Hello pavloven, New start, I think like you, MicroSd cards not support spi or zerror spi.
But Then, I conneted MCU with Microsd card by spi protocol, and send some command to Micro Sd, Micro Sd return true. so, spi of Micro Sd card alway run. :))