https://devzone.nordicsemi.com/f/nordic-q-a/60231/iot-library-with-power-driver-and-fdsHi, I&#39;m facing some problems trying to implement IoT library. I&#39;m working in a code that uses FDS, SAADC, USBD-CDC-ACM among other things. I was able successfully to implement a BLE application with a simple custom service. My next step is to implementen-USTelligent Community 13Wed, 15 Jul 2020 07:58:59 GMThttps://devzone.nordicsemi.com/thread/260051?ContentTypeID=1Wed, 15 Jul 2020 07:58:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:81ca1909-45b5-4cfd-b0e5-228c459c6666tesc<p>Hi,</p> <p>1.- They may not be out of the box compatible, but looking at the error code on line 357 in nrf_drv_power.c you may want to look into calling nrf_drv_power_init(NULL) first to avoid the assert.</p> <p>2.- Might be an issue with interrupt priority levels (e.g. code running/hanging in higher priority level than FDS code or FDS handler.) Might be related to the CPU being blocked during flash write or erase operations. Have you debugged the situation and figured out if code execution gets stuck / what is the state of the application at that point?</p> <p>Regards,<br />Terje</p><div style="clear:both;"></div>