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