AnsweredAssumed Answered

Application doesn't run, unless connected by STLINK or in Debug Mode

Question asked by Carl on May 28, 2015
Latest reply on May 28, 2015 by Clive One

I just got my new STM32F4 discovery board, i wrote a LED test program with CoIDE and flashed it, but LED didn't toggle, even i try to press RESET button. Then i go to debug mode and click run, it starts to toggle. I plug out the power and plug in again, it doesn't toggle, after i open the STLINK Utility and click connect, it starts to run. 

Could anyone tell me what is the problem? Is it something to do with Bootloader?