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
Hi,

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? 

Thanks.

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