https://devzone.nordicsemi.com/f/nordic-q-a/73339/i2c-and-low-powerHi, all I&#39;m trying to i2c(twi) in low power.. In this case, I want to generate an interrupt through the i2c read function &quot; read_touch_data &quot; (under code). Where should I define the &quot;read_touch_data&quot; function to generate an interrupt in lowen-USTelligent Community 13Tue, 06 Apr 2021 09:51:59 GMThttps://devzone.nordicsemi.com/thread/303072?ContentTypeID=1Tue, 06 Apr 2021 09:51:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b80cf240-5615-4daf-a110-182f2d8ea842Heidi<p>Hi again!</p> <p></p> <p>The TWI driver in the nRF5 SDK will enable interrupts for the necessary events if it is configured in <a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/hardware_driver_twi.html?cp=7_1_2_0_17_1#hardware_driver_twi_basic">non-blocking mode</a>.&nbsp;</p> <p></p> <p>The delay (<span>nrf_delay_ms(1000)) will prevent the CPU&nbsp;from entering sleep for 1000 ms, which means that the TWI transfer will be done long before sleep is entered. The peripheral will still generate the interrupt in non-blocking mode though.</span></p> <p><span></span></p> <p><span></span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/302747?ContentTypeID=1Wed, 31 Mar 2021 13:07:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:27a97a7e-9bbf-4533-9a6b-94f217299fc3Heidi<p>Hi!</p> <p></p> <p>You want an interrupt that will trigger when the device goes into a low power state, is that correct? I&#39;m not sure that&#39;s possible but I will find out and get back to you.</p> <p></p> <p>Due to the Easter holidays here in Norway, you can expect an answer on Tuesday 6. april, at the earliest.&nbsp;</p> <p></p> <p>Best regards,</p> <p>Heidi</p><div style="clear:both;"></div>