https://devzone.nordicsemi.com/f/nordic-q-a/73805/hardfault-on-nrf52832-when-passing-floating-point-value-to-c-ostream-and-can-t-get-backtraceHello, I&#39;m trying to run C++ code on the nrf52832 but I&#39;m getting an Hard Fault when sending a floating point to an ostream, like in &quot;std::cout &lt;&lt; 13.5f;&quot;. The FPU is enabled. Printing the backtrace from the handler I get the following: (gdb) bt #0en-USTelligent Community 13Sun, 11 Apr 2021 00:50:19 GMThttps://devzone.nordicsemi.com/thread/304129?ContentTypeID=1Sun, 11 Apr 2021 00:50:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fe30b5ab-1718-4968-ac4f-ffc2e735db61Nguyen Hoan Hoang<p>Looks like you have a stack overflow. &nbsp;I don&#39;t recommend using any iostream in embedded system especially mcu. &nbsp;use the regular redirected printf instead such as printf via uart. &nbsp;mcu does not have a console iostreams are not going anywhere and takes a lot memory. &nbsp;&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/304096?ContentTypeID=1Fri, 09 Apr 2021 19:36:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9dd3f167-bec5-45cf-8972-e98f45f61c28Patrick<p>You will probably want to look into using NRF_LOG_INFO to print information to the console. Take a look at <a href="https://devzone.nordicsemi.com/f/nordic-q-a/24030/how-to-print-floats-with-nrf_log-macros">this case</a> for how to output a float.</p><div style="clear:both;"></div>