* * Change Logs: * Date Author Notes * 2009-01-05 Bernard the first version * 2015-08-01 xiaonong the first version for stm32f7xx * 2016-01-15 ArdaFu the first version for stm32f4xx with STM32 HAL */#ifndef __USART_H__#define __USART_H__externvoidUSART2_IRQHandler(void);#endif