https://devzone.nordicsemi.com/f/nordic-q-a/61175/qspi-with-psramIs the process of communication between QSPI and Ext. flash same for QSPI and PSRAM? If not, what could be the procedure? And how can I communicate with 2 PSRAM using single CS ?en-USTelligent Community 13Fri, 08 May 2020 12:01:13 GMThttps://devzone.nordicsemi.com/thread/248919?ContentTypeID=1Fri, 08 May 2020 12:01:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:85488437-36f1-4916-8f5c-6d0076937daaSimonr<p>Hi</p> <p>QSPI is not very well suited for connecting RAM modules, as you can&#39;t write through the XIP area, only read.</p> <p>I&#39;d suggest using a bigger microcontroller such as the <a href="https://www.nordicsemi.com/Products/Low-power-short-range-wireless/nRF5340">nRF5340</a> instead, as external RAM generally is rather slow.&nbsp;</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>