44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
/**
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******************************************************************************
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* File Name : USART.c
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* Description : This file provides code for the configuration
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* of the USART instances.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2019 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "usart.h"
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/**
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* @brief 板级 usart 硬件初始化
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* @param void:
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* retval N/A.
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*/
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int board_usart_init(void)
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{
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rcu_periph_clock_enable(RCU_USART0);
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usart_deinit(RCU_USART0);
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usart_baudrate_set(USART0, 115200);
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usart_stop_bit_set(USART0, USART_STB_1BIT);
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usart_word_length_set(USART0, USART_WL_8BIT);
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usart_parity_config(USART0, USART_PM_NONE);
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usart_transmit_config(USART0, USART_TRANSMIT_ENABLE);
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usart_receive_config(USART0, USART_RECEIVE_ENABLE);
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usart_interrupt_enable(USART0, USART_INT_RBNE);
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usart_enable(USART0);
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nvic_irq_enable(USART0_IRQn, 0, 0);
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return 0;
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}
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