SD Card vs Flash SPI

[ypearson]

I would like to test the Fatfs demo using a target spi flash memory chip. The example code calls out sd card fatfs driver. Can I assume that spi flash memory is the same as a spi sd card memory?

thanks.

[Roger Clark]

I don't think the protocol / comms for a SPI flash chip is the same as for a SD card.

[RK]

Not the same at all - some similar basic concepts but the SD card has a huge protocol of which SPI is just a subset, the SPI memory chips have a simpler protocol which is just SPI and is pretty standard between chips.