https://devzone.nordicsemi.com/f/nordic-q-a/77934/spis-hangs-while-transmitting-over-bleHi Nordic Team, In my application, I&#39;m trying to read 512 bytes of data continuously from the STM32 master device. nrf52840 acts as a slave device. Every time I receive data I transmit it over BLE by appending the data in the hvx_param. The issue isen-USTelligent Community 13Tue, 27 Jul 2021 11:44:02 GMThttps://devzone.nordicsemi.com/thread/322026?ContentTypeID=1Tue, 27 Jul 2021 11:44:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fdd34004-0df5-47dc-839d-087ebe6f5c15Jared<p>Hi,</p> <p><a href="https://www.youtube.com/watch?v=uP8RYgYGRvI">You need to debug your application</a>. Where is the program when the &quot;system hangs&quot;? Is it inside an error handler? If so, how does the call stack look like, what called the error handler?</p> <p>regards</p> <p>Jared</p><div style="clear:both;"></div>