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Why disconnected USB cable blocks running code ?

Question asked by Peter Augustin on Dec 26, 2016
Latest reply on Dec 28, 2016 by jeremyzhou

Hello, I use LPC11U35 on my board and it is powered by battery. It is developed under mbed.org platform and I have a problem with USBSerial (USB CDC). The board works fine with connected USB cable or without USB cable. The problem is when I disconnect USB cable from running board because then running code is stoped. I do not know where is problem. Is it a problem with mbed library or is it a hardware problem ?

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