https://devzone.nordicsemi.com/f/nordic-q-a/48465/app-scheduler-max-event-size-4-byte-multipleWe use the app scheduler in our app and I recently needed to increase the EVENT_SIZE passed into APP_SCHED_INIT. I changed it to a value that is not an event 4-byte multiple. This seemed to cause undefined behavior, including hard faults. Is it requireden-USTelligent Community 13Wed, 12 Jun 2019 08:54:22 GMThttps://devzone.nordicsemi.com/thread/192271?ContentTypeID=1Wed, 12 Jun 2019 08:54:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3225b80e-57a9-4de5-a614-c6db45564447H&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> [quote user=""]Is it required that this value is a 4-byte multiple or is this behavior unexpected?[/quote] <p>Yes, I can confirm that it is a requirement that the input buffer is word-aligned. However; there&#39;s no mention of this in our documentation. I&#39;ll report this internally.</p> <p>The only thing that can hint towards that requirement in our docs is the macro for initializing, as it rounds in word size:&nbsp;<a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__app__scheduler.html#gaa9670ed0053a67304c3d2d0cb3eb1333">https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__app__scheduler.html#gaa9670ed0053a67304c3d2d0cb3eb1333</a></p> <p>&nbsp;</p> <p>Thanks for reporting this back to us!</p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>