1 /* 2 * Copyright (c) 2006-2023, RT-Thread Development Team 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 * 6 * Change Logs: 7 * Date Author Notes 8 * 2020-08-20 Abbcc first version 9 */ 10 11 #ifndef __DRV_USART_H__ 12 #define __DRV_USART_H__ 13 14 #include <rtthread.h> 15 #include "rtdevice.h" 16 #include <rthw.h> 17 #include <drv_common.h> 18 #include <board.h> 19 20 int rt_hw_usart_init(void); 21 22 #endif /* __DRV_USART_H__ */ 23