I'm using STM32F429I Discovery Board. I need to use the PA5 pin as gpio. But I did not get any output from the PA5 pin.
The PA5 pin appears as an unused pin.
/* Configure PA5 Buzzer as output push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
These init codes are not working. What is the problem? Is there another feature of this pin?