https://devzone.nordicsemi.com/f/nordic-q-a/84075/the-qspi-csn-can-t-be-hight-when-it-read-data-with-xipuint32_t address = XIP_ADDRESS + addr ; uint8_t * p_data = ( uint8_t * ) address ; for ( int i = 0 ; i &lt; len ; i ++ ) { data [ i ] = p_data [ i ] ; } The Pin of QSPI/CSN is low after it read the data with XIP.en-USTelligent Community 13Wed, 26 Jan 2022 10:03:04 GMThttps://devzone.nordicsemi.com/thread/349712?ContentTypeID=1Wed, 26 Jan 2022 10:03:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dbd61fa6-11f1-4dd7-9e1d-96332dc1b85cTurbo J<p>Normal behavior of the QSPI in XIP mode - it expects the next read.</p> <p>Workaround: Issue a dummy read via task (and not via XIP). CSn will be set to high after this read.</p> <p>This will also improve current consumtion, since most QSPI flash chips consume more if CS is pulled low.</p><div style="clear:both;"></div>