I am trying to understand how STM32Cube ide works. I guess by default UART2 has set as UART_TX – PA2, UART_RX – PA3. I have reconfigured PA1 and PA2 as GPIO_OutPut and set UART_TX – PA14 and UART_RX – PA15. There is a yellow warning sign beside UART2 that says, ‘UART2 Partly disa bled conflict with PA mapped with GPIO_Output’