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How can I return from sleep mode on stm32f401

Question asked by d.urbano on Oct 3, 2014
Latest reply on Oct 3, 2014 by d.urbano
Hi,
I'm facing with a strange problem, in fact I'm working on Discovery platform to study the stm32f4 low power modes. I'd like to enter and exit from sleep mode and to do this I use an UART to send the command to enter in sleep mode, and the PA0 button to exit. My problem is that while I have not problem to enter in sleep mode, even pushing the button, the mcu does not exit from this mode, and I don't really know where is the problem...could anyone please help me ? The attached file is my main.c where I wrote all the necessary code.
Regards

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