https://devzone.nordicsemi.com/f/nordic-q-a/34068/power-draw-higher-than-expected-using-freertosI am working on a product based on the nRF52832 (using the Rigado BMD-300 module) which is basically a data logger with a BLE connection for offload. I am running FreeRTOS and using SDK 14.2. Currently I measure the power draw at about 1.2mA and I haveen-USTelligent Community 13Sun, 06 May 2018 23:24:29 GMThttps://devzone.nordicsemi.com/thread/131107?ContentTypeID=1Sun, 06 May 2018 23:24:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2fcb1a11-0bc2-449f-b632-295c12a64aaaAustin<p>Have you see&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/24733/nrf52840-sdk-14-0-0-and-tickless-idle-freertos---some-suggestions/97396#97396">this</a>&nbsp;post?&nbsp; I also had issues with FreeRTOS power draw, but I was using tickless.&nbsp; The source code changes for tickless idle made in that post significantly reduced idle current for me by staying in a tight inner WFE loop until the RTOS needed to wake due to timer expiry or task in runnable state.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/131054?ContentTypeID=1Fri, 04 May 2018 10:41:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:97ff7884-08da-415a-b008-e60a03ec77e0Susheel Nuguru<p>Hi Mark,</p> <p>As you expected, it is hard to say what is keeping the system not go to low power mode. I took this case because you mentioned FreeRTOS. But it does not look like this is because of FreeRTOS.&nbsp; You should try to look into NVIC_ISER registers</p> <p><img src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-4656f2de06134d5db5b0d846f98d4525/Capture.JPG" alt=" " /></p> <p>Based on this, you can see which modules are pending the ISR to keep the CPU not go to sleep.</p> <p>&nbsp;</p><div style="clear:both;"></div>