https://devzone.nordicsemi.com/f/nordic-q-a/81328/how-to-stop-i2s-transferHi! When reading the documentation of the I2S peripheral of the nRF52840, I don&#39;t see how to stop the transfer after the last data block. Figure 2 only shows how to start it. Do I have to temporarily connect EVENTS_TXPTRUPD to TASKS_STOP using PPI?en-USTelligent Community 13Wed, 03 Nov 2021 11:27:28 GMThttps://devzone.nordicsemi.com/thread/337245?ContentTypeID=1Wed, 03 Nov 2021 11:27:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ea191597-a6c8-42e3-8353-134036571284Jared<p>Hi,</p> [quote user=""]Do I have to temporarily connect&nbsp;EVENTS_TXPTRUPD to TASKS_STOP using PPI?[/quote] <p>If you want the transfer to stop after the buffer has been filled then this is correct. Note, that you don&#39;t have to stop the transfer to process the data as you can just ready the next buffer . See the <a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/i2s_example_loopback.html?cp=8_1_4_6_15">I2S example </a>in the SDK.</p> [quote user=""]Additional question: Is&nbsp;RXTXD.MAXCNT also double buffered and can be written together with TXD.PTR? This would make it possible to send data blocks of varying size.[/quote] <p>No, only the TX and RX are double buffered.&nbsp;</p> <p>regards</p> <p>Jared&nbsp;</p><div style="clear:both;"></div>