https://devzone.nordicsemi.com/f/nordic-q-a/69810/can-you-use-nrf-ppi-and-freertos-togetherHi, I&#39;m reading through the documentation on using the SAADC with the NRF52 kits. The examples are using PPI to manage the SAADC and allow it to sample locationally in a non blocking way. I am planning on using FreeRTOS however to manage the boardsen-USTelligent Community 13Wed, 23 Dec 2020 13:29:05 GMThttps://devzone.nordicsemi.com/thread/286470?ContentTypeID=1Wed, 23 Dec 2020 13:29:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fc812c53-1b89-44b7-b9a0-fdb1862b808dVidar Berg<p>Hi,</p> <p>It&#39;s completely optional to use PPI, and whether it makes sense to use it or not depends a bit on use case. For low frequency sampling it may be easier to trigger the sampling periodically from a freertos task or a timer event.</p> <p>PPI triggers peripheral tasks without involving the CPU, so it doesn&#39;t really make any difference if you run a bare metal application or an RTOS.</p> <p>Driver documentation for reference: <span><a title="SAADC" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/hardware_driver_saadc.html?cp=7_1_2_0_12">SAADC driver</a></span></p> <p><span>Best regards,</span></p> <p><span>Vidar</span></p><div style="clear:both;"></div>