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STM32F429-iDisco is very easy crash, why?

Question asked by li.linda.001 on Dec 30, 2014
Latest reply on Dec 31, 2014 by Clive One
STM32F429-iDisco is very easy crash, why?
After installing it into our metal box, it crash very easily. At the beginning, we guess the electrostatic from other board cause that, then we add a think plastic to isolate them, problem is still the same. We guess STM32F429-iDisco is not insulated from the metal box, then we add some pads cushion, problem is the same. We guess the  STM32F429-iDisco in not proper power by +5V, then we add a capacitor of 1000uF/16V on the pin +5v and ground, but the problem is the same.
Please help.

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