https://devzone.nordicsemi.com/f/nordic-q-a/91381/connecting-spi-flash-m25p40-to-nrf5340-dkHello, in our application we want to use a simple serial Spi Flash: M25P40 (only 1 data signal). For evaluationI I connected this Spi Flash to the nrf5340-DK Board: Signal Pin (nrf5340) CS P1.12 CLK P1.13 MOSI P1en-USTelligent Community 13Thu, 01 Sep 2022 09:35:35 GMThttps://devzone.nordicsemi.com/thread/384291?ContentTypeID=1Thu, 01 Sep 2022 09:35:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fa81ae8c-0bf5-4ef7-b5c1-e162ee5ed1a7Georg<p>Hello Jorgen,</p> <p>thank you for your fast response. and sorry for my late response. I did some modification according to the example but without success.I tried with different SPI numbers. My Question is: How to modify the &quot;spi flash&quot; example to work with an M25P40 serial Spi Flash.</p> <p>Thank you</p> <p>Best regards,</p> <p>Georg&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/383521?ContentTypeID=1Fri, 26 Aug 2022 15:25:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:03946ea1-50d7-4e71-a533-cf7b05c170c0J&#248;rgen Holmefjord<p>Hi,</p> <p>Can you try something similar to the overlay in <a href="https://devzone.nordicsemi.com/f/nordic-q-a/81887/nrf9160-spi-flash-for-cellular-firmware-download/342527">this post</a>?</p> <p>Also, note that SPI0 will overlap with UART0 instance in the nRF5340, as these share base address (see <a title="Peripheral instantiation" href="https://infocenter.nordicsemi.com/topic/ps_nrf5340/chapters/memory/appmem.html?cp=3_0_0_4_2_0#instantiation">Peripheral instantiation</a>).</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>