2021-09-04 17:56:49 +08:00
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/*
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* Copyright (C) 2021, lizhengyang
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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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2021-09-06 19:18:27 +08:00
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* 2021-09-02 lizhengyang first version
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2021-09-04 17:56:49 +08:00
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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(M4_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_UART1)
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case (rt_uint32_t)M4_USART1:
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/* Configure USART1 RX/TX pin. */
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PORT_SetFunc(USART1_RX_PORT, USART1_RX_PIN, Func_Usart1_Rx, Disable);
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PORT_SetFunc(USART1_TX_PORT, USART1_TX_PIN, Func_Usart1_Tx, Disable);
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break;
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#endif
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#if defined(BSP_USING_UART2)
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case (rt_uint32_t)M4_USART2:
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/* Configure USART2 RX/TX pin. */
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PORT_SetFunc(USART2_RX_PORT, USART2_RX_PIN, Func_Usart2_Rx, Disable);
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PORT_SetFunc(USART2_TX_PORT, USART2_TX_PIN, Func_Usart2_Tx, Disable);
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break;
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#endif
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#if defined(BSP_USING_UART3)
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case (rt_uint32_t)M4_USART3:
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/* Configure USART3 RX/TX pin. */
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PORT_SetFunc(USART3_RX_PORT, USART3_RX_PIN, Func_Usart3_Rx, Disable);
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PORT_SetFunc(USART3_TX_PORT, USART3_TX_PIN, Func_Usart3_Tx, Disable);
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break;
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#endif
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#if defined(BSP_USING_UART4)
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case (rt_uint32_t)M4_USART4:
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/* Configure USART4 RX/TX pin. */
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PORT_SetFunc(USART4_RX_PORT, USART4_RX_PIN, Func_Usart4_Rx, Disable);
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PORT_SetFunc(USART4_TX_PORT, USART4_TX_PIN, Func_Usart4_Tx, Disable);
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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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