↓ 7 callersFunctionUSART_GetFlagStatus* @brief Checks whether the specified USART flag is set or not.
* @param USARTx: where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or
sample/platform/STM32/OnBoardSDK_STM32/Lib/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_usart.c:1295