https://devzone.nordicsemi.com/f/nordic-q-a/13201/disable-output-to-arm-semihosting-consoleHi, I run the code of the radio_test example in a VisualGDB project. When I start it with a debugger connected, VisualGDB informs me that a ARM semihosting system call was detected and that it emulates a basic console. There are no actual outputs onen-USTelligent Community 13Thu, 21 Apr 2016 08:08:14 GMThttps://devzone.nordicsemi.com/thread/50342?ContentTypeID=1Thu, 21 Apr 2016 08:08:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f66d0683-f682-4d83-9c22-27169a265322braucadr<p>Meanwhile I found a solution. I just had to overwrite the function where the system call happens. I added these lines to main.c</p> <pre><code>extern int _isatty(int fd) { return 1; } </code></pre> <p>just in case someone else faces the same problem...</p><div style="clear:both;"></div>