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how to output 5V to GPOIC_Pin7 instead of 3.3V

Question asked by aymen.bellili on Jul 1, 2014
Latest reply on Jul 1, 2014 by sung.chen_chung
I'm using LCD with stm32f107 vct6, I need 5V for backlight.
I configure GPIOC_Pin7 as GPIO_Mode_Out_OD and I connect it with 4K7 resisator and 5V.
GPIOC_Pin7  -------->-------->OUT 

I measure at OUT it is 3V.