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STM32 Does not boot or work if debugger is not attached to it

Question asked by yazdani.saeid on May 29, 2015
Latest reply on Jun 1, 2015 by yazdani.saeid
Hi all,

I am facing a strange problem. I have made a usb application on STM32F103RBT6 and it all works good....but if I remove the debugger (J-Link) from the board, the application does not work. I mean nothing works. My board is connected to USB and I am sure there is no power issues.

There might be some settings in the startup.s file or something else that I am not aware of. 

What can be wrong?