https://devzone.nordicsemi.com/f/nordic-q-a/64901/how-do-i-use-the-audio-clock-in-nrf5340Are there any examples for the nRF5340-PDK showing how to use the audio clock (ACLK) with the PDM or I2S peripherals? What changes are needed to prj.conf or nrf5340_dk_nrf5340_cpuapp.overlay?en-USTelligent Community 13Tue, 18 Aug 2020 17:31:01 GMThttps://devzone.nordicsemi.com/thread/265189?ContentTypeID=1Tue, 18 Aug 2020 17:31:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:be0652e7-d45b-4fac-979d-730563d91385DBT<p>I was just trying to get a pin to oscillate at the ACLK frequency.</p> <p>I put a code snippet on this ticket that makes at least that much of it work:</p> <p><a href="https://devzone.nordicsemi.com/f/nordic-q-a/64903/can-i-make-one-of-the-nrf5340-pins-oscillate-at-12-288mhz-audio-pll-clock">https://devzone.nordicsemi.com/f/nordic-q-a/64903/can-i-make-one-of-the-nrf5340-pins-oscillate-at-12-288mhz-audio-pll-clock</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/265059?ContentTypeID=1Tue, 18 Aug 2020 10:46:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:59fcfce8-b639-40a3-a693-f1b7aa28dc80haakonsh[quote user=""]Are there any examples for the nRF5340-PDK showing how to use the audio clock (ACLK) with the PDM or I2S peripherals?[/quote] <p>&nbsp;No, not yet.&nbsp;<br /><br />The NRFX I2S driver has an API for it though. Just set the clock source in the config you pass to&nbsp;nrfx_i2s_init to&nbsp;NRF_I2S_CLKSRC_ACLK.&nbsp;<br /><br /><br /></p> <p><br /><br /></p><div style="clear:both;"></div>