https://devzone.nordicsemi.com/f/nordic-q-a/7195/gazell-libraries-detailsWe are looking at using the Gazell protocol for a project. There isn&#39;t much information out there except for the &quot;Gazell Link Layer User&#39;s Guide&quot; developer.nordicsemi.com/.../a00113.html Can someone explain what the differences are between the twoen-USTelligent Community 13Fri, 22 May 2015 12:21:38 GMThttps://devzone.nordicsemi.com/thread/25436?ContentTypeID=1Fri, 22 May 2015 12:21:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:47e43d43-20b0-496e-92fe-ffc46d887bc8ovrebekk<p>Hi</p> <p>If you want to combine Gazell and BLE in the same application, by using the Gazell library through the timeslot API in the SoftDevice, you should use the gzll_sd_resources_arm.lib. The reason for this is that this Gazell version uses a subset of the timers, PPI channels and software interrupts already used by the SoftDevice, which means there are more timers, PPI channels and software interrupts left over for the application.</p> <p>If you use the gzll_arm.lib with the SoftDevice you will only have one timer, 5 PPI channels and no software interrupts left.</p> <p>If you don&#39;t combine Gazell with BLE it doesn&#39;t really matter which version you use.</p> <p>Regards Torbjørn</p><div style="clear:both;"></div>