AnsweredAssumed Answered

STM32 module suddenly disconnected and not recognized

Question asked by sterevo on Nov 27, 2015
Latest reply on Nov 29, 2015 by sterevo
Please help,

I was programming my STM32F4-Discovery with an "ADCInterleaved" code (from template) using Keil and suddenly my board get disconnected from my PC. The program load was smooth though, but after i want to test it with "Start/Stop Debug Session", an error window popped up saying that my board has been disconnected, thus the debug session exit for itself.

And after that my board always get "USB Device not recognised" error from Windows. And everytime I triy to load a program or start a debug session, it ended up with "No ST-LINK detected" error.

Is there anything I can do? I've tried connecting to different PC but no help. All I know is the indicator lamp still on, and I can guarantee that there is no short circuit (also my program is only ADC, there won't be any problem), so I guess there's nothing wrong with the hardware itself.

Does anyone have a similar problem? Please, I'm stuck here. (and sorry for my english)