https://devzone.nordicsemi.com/f/nordic-q-a/123120/using-twim-with-ncsI&#39;m using an nRF52840 and porting an old Firmware from nRF5 SDK to NCS. I am using TWIM to communicate with a Peripheral and I want to continue to do this so I can eventually use the PPI with this. I&#39;ve been following this example to get basic TWIMen-USTelligent Community 13Mon, 21 Jul 2025 12:10:16 GMThttps://devzone.nordicsemi.com/thread/543009?ContentTypeID=1Mon, 21 Jul 2025 12:10:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b22dc9b3-2250-4a47-8693-1aae3f4c5f32matthazley<p>Please ignore this, absolute human error, given this is non-blocking, I had an error where I did not wait until the TWIM was ready again before transmitting again.&nbsp;<br /><br />Verified with the following after my xfer:</p> <p><pre class="ui-code" data-mode="c_cpp">while (true == nrfx_twim_is_busy(&amp;twim_instance)) { }</pre></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/543000?ContentTypeID=1Mon, 21 Jul 2025 11:44:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6d48e14b-12e9-4925-956a-30905bca7f63matthazley<p>Sorry, should have included my versions:</p> <p><pre class="ui-code" data-mode="text">*** Booting nRF Connect SDK v3.0.2-89ba1294ac9b *** *** Using Zephyr OS v4.0.99-f791c49f492c ***</pre></p><div style="clear:both;"></div>