https://devzone.nordicsemi.com/f/nordic-q-a/117608/i2s-master-receive-rx-driver-issuesHi there, I am working on an audio recording and transfer application using nRF5340 (microcontroller development kit) and SPH0465 (digital microphone with I2S support). I am using NCS and Zephyr 2.7.0. I have had success in implementing the I2S echoen-USTelligent Community 13Mon, 30 Dec 2024 12:13:25 GMThttps://devzone.nordicsemi.com/thread/516503?ContentTypeID=1Mon, 30 Dec 2024 12:13:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:33b3a88d-846d-4e0a-a790-229b36167baeumer<p>Thanks for the reply.</p> <p></p> <p>I was able to make it work by freeing block memory after every i2s_read.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/516501?ContentTypeID=1Mon, 30 Dec 2024 12:11:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:67267a65-905f-4f22-9925-67cfcd77306dCharlie<p>Hi Umer,</p> <p>Thank you for reaching out to us regarding this issue.</p> <p>Unfortunately, I don’t have an SPH0465 on hand to test directly, but I can offer some advice to assist you in debugging.</p> <p>Since the Zephyr I2S echo sample is already working for you, I recommend using a logic analyzer to verify the physical layer I2S communication. Then, compare the behavior with your application code to identify any differences.</p> <p>I hope this helps you pinpoint the issue and resolve it effectively. Let me know if you need further guidance.</p> <p><span>Best regards,</span></p> <p><span>Charlie</span></p><div style="clear:both;"></div>