https://devzone.nordicsemi.com/f/nordic-q-a/33689/enter-critical-section-from-radio-dispatcherHello, I am developing ble scanner in which I want to print data of adv reports over uart. Printing is executed in main and in on_ble_evt function I add items to circular buffer. But as I have many beacons I get too many interrupts and processor cannoten-USTelligent Community 13Tue, 24 Apr 2018 14:15:38 GMThttps://devzone.nordicsemi.com/thread/129607?ContentTypeID=1Tue, 24 Apr 2018 14:15:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:63e6cf8f-9e88-4215-9511-3c565d7cb8a2ovrebekk<p>Hi Michal</p> <p>It seems to me the bottle neck here is the speed of the UART,&nbsp;so rather than blocking the SoftDevice I would recommend limiting the printing to a rate that the UART can handle.&nbsp;</p> <p>In other words you should skip printing some of the adv reports when you&nbsp;reach a certain number of adv reports pr second.&nbsp;</p> <p>If you want to be clever about it you could write a system to detect repeated adv reports from the same advertiser, and avoid printing the same report over and over. Then you should be able to report a larger numbers of unique beacons before having to limit the print out.&nbsp;</p> <p>Blocking the SoftDevice itself will cause it to crash, so this I would not recommend.</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>