https://devzone.nordicsemi.com/f/nordic-q-a/82593/query-regarding-mt29f4g01abafdwb-nand-flash-interfacing-with-qspi-on-nrf52840dkHello folks, I was planning to interface MT29F4G01ABAFDWB Flash through QSPI peripheral with nrf52840 soc. But before that, i tried to find some resource and i came across a thread in which they said M T29F4G01 cannot be interface with QSPI peripheralen-USTelligent Community 13Mon, 13 Dec 2021 06:51:37 GMThttps://devzone.nordicsemi.com/thread/343052?ContentTypeID=1Mon, 13 Dec 2021 06:51:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:21ee61df-52e4-4485-8b2f-7aa4cc5dbd39Simonr<p>Correct, you are free to try interfacing to it by using custom instructions, but there&#39;s no guarantee it will work, and we recommend using a NOR flash device instead.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/342994?ContentTypeID=1Fri, 10 Dec 2021 19:21:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:902e7304-4507-4dbe-939b-4e122c5b9a49AbhaySingh<p>Thanks for reply Simonr,&nbsp;</p> <ul> <li>Did this means, I can try interfacing&nbsp;<span>MT29F4G01ABAFDWB with QSPI but it&#39;s not preferable to do, Am I right ?</span></li> </ul><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/342904?ContentTypeID=1Fri, 10 Dec 2021 11:56:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d72ee5a7-aaf1-4bb6-9c18-462da1b61b3bSimonr<p>Hi</p> <p>The QSPI peripheral does not support Execute in place (XIP) or EasyDMA functions on a NAND, but it may be possible using custom instructions. Custom instructions takes away most benefits with using QSPI though, as they&#39;re only transmitting over 1 line at a time, so&nbsp;<strong>any&nbsp;</strong>NAND flash is not well suited to interface with our QSPI peripheral.</p> <p>The features of our QSPI is best suited for a NOR flash either way, as it focuses on doing XIP (letting the CPU execute program code directly from the external flash).</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>