https://devzone.nordicsemi.com/f/nordic-q-a/19900/sd-card-vs-flash-spiI 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.en-USTelligent Community 13Wed, 22 Feb 2017 11:43:32 GMThttps://devzone.nordicsemi.com/thread/77444?ContentTypeID=1Wed, 22 Feb 2017 11:43:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:34220ed0-c6b1-4ed4-a93a-433149b85889RK<p>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.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/77445?ContentTypeID=1Wed, 22 Feb 2017 04:14:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:255c425c-38e1-4165-a14e-3709a5414210Roger Clark<p>I don&#39;t think the protocol / comms for a SPI flash chip is the same as for a SD card.</p><div style="clear:both;"></div>