42 lines
878 B
C
42 lines
878 B
C
|
/*
|
||
|
|
* Copyright (c) 2006-2022, RT-Thread Development Team
|
||
|
|
* Copyright (c) 2022, Xiaohua Semiconductor Co., Ltd.
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*
|
||
|
|
* Change Logs:
|
||
|
|
* Date Author Notes
|
||
|
|
* 2022-04-28 CDT first version
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <rtdevice.h>
|
||
|
|
#include "board_config.h"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The below functions will initialize HC32 board.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if defined RT_USING_SERIAL
|
||
|
|
rt_err_t rt_hw_board_uart_init(CM_USART_TypeDef *USARTx)
|
||
|
|
{
|
||
|
|
rt_err_t result = RT_EOK;
|
||
|
|
|
||
|
|
switch ((rt_uint32_t)USARTx)
|
||
|
|
{
|
||
|
|
#if defined(BSP_USING_UART4)
|
||
|
|
case (rt_uint32_t)CM_USART4:
|
||
|
|
/* Configure USART RX/TX pin. */
|
||
|
|
GPIO_SetFunc(USART4_RX_PORT, USART4_RX_PIN, GPIO_FUNC_37);
|
||
|
|
GPIO_SetFunc(USART4_TX_PORT, USART4_TX_PIN, GPIO_FUNC_36);
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
default:
|
||
|
|
result = -RT_ERROR;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|