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STM32 strange flashing process

Question asked by Tim Baures on May 19, 2017
Latest reply on May 22, 2017 by Tim Baures

Hi!

When I flash a .hex or .bin file with a ST-LINK V2 device on my STM32F4 microcontroller (with ST-LINK utility), the program only works if both the ST-LINK V2 and my MCU board stay connected to the computer (through a USB cable). Whenever I unplug one of them the program just flashed on the board does not run anymore.

Does anyone have any idea of what is happening ?

Thanks for your help!

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