https://devzone.nordicsemi.com/f/nordic-q-a/75494/when-i2s-data-transmission-is-turned-on-all-data-in-cpu-will-be-occupiedAnother problem is that when I turn on I2S to read data, the while loop does nothing, and the broadcast can&#39;t be transmitted, just like I2S has occupied all the CPU, and other codes can&#39;t be executed,en-USTelligent Community 13Tue, 25 May 2021 11:21:37 GMThttps://devzone.nordicsemi.com/thread/311419?ContentTypeID=1Tue, 25 May 2021 11:21:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:92aedab1-2b86-47b0-b968-88667a16b239H&#229;kon Alseth<p>Hi,</p> <p></p> <p>Closing this as a duplicate of this thread:</p> <p><a href="https://devzone.nordicsemi.com/f/nordic-q-a/75520/nrf52840-i2s-when-nrf52840-i2s-is-opened-to-read-data-it-will-occupy-all-resources">https://devzone.nordicsemi.com/f/nordic-q-a/75520/nrf52840-i2s-when-nrf52840-i2s-is-opened-to-read-data-it-will-occupy-all-resources</a></p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>