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请教大神如何去实现stm32f103vct6串口的程序代码呢

问答对人有帮助，内容完整，我也想知道答案 0 请教大神如何去实现STM32f103vct6串口的程序代码呢？ 0
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答案对人有帮助，有参考价值 0 void RCC_Configuration(void) { SystemInit();//72m RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC,ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD,ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1,ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2,ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3,ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART4,ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART5,ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE); } void USART1_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; NVIC_InitTypeDef NVIC_InitStructure; USART_InitTypeDef USART_InitStructure; GPIO_InitStructure.GPIO_Pin=GPIO_Pin_9;//TX GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP; GPIO_Init(GPIOA,&GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin=GPIO_Pin_10;//RX GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IN_FLOATING; GPIO_Init(GPIOA,&GPIO_InitStructure); NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); USART_InitStructure.USART_BaudRate=9600; USART_InitStructure.USART_WordLength=USART_WordLength_8b; USART_InitStructure.USART_StopBits=USART_StopBits_1; USART_InitStructure.USART_Parity=USART_Parity_No; USART_InitStructure.USART_HardwareFlowControl=USART_HardwareFlowControl_None; USART_InitStructure.USART_Mode=USART_Mode_Rx\|USART_Mode_Tx; USART_Init(USART1,&USART_InitStructure); USART_ITConfig(USART1,USART_IT_RXNE,ENABLE); USART_Cmd(USART1,ENABLE); USART_ClearFlag(USART1,USART_FLAG_TC); } void USART2_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; USART_InitTypeDef USART_InitStructure; GPIO_PinRemapConfig(GPIO_Remap_USART2,ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(GPIOD, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; GPIO_Init(GPIOD, &GPIO_InitStructure); USART_InitStructure.USART_BaudRate = 9600; USART_InitStructure.USART_WordLength = USART_WordLength_8b; USART_InitStructure.USART_StopBits = USART_StopBits_1; USART_InitStructure.USART_Parity = USART_Parity_No ; USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; USART_InitStructure.USART_Mode = USART_Mode_Rx \| USART_Mode_Tx; USART_Init(USART2, &USART_InitStructure); USART_Cmd(USART2, ENABLE); USART_ClearFlag(USART2,USART_FLAG_TC); void USART3_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; NVIC_InitTypeDef NVIC_InitStructure; USART_InitTypeDef USART_InitStructure; GPIO_InitStructure.GPIO_Pin=GPIO_Pin_10;//TX GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP; GPIO_Init(GPIOB,&GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin=GPIO_Pin_11;//RX GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IN_FLOATING; GPIO_Init(GPIOB,&GPIO_InitStructure); NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); USART_InitStructure.USART_BaudRate=9600; USART_InitStructure.USART_WordLength=USART_WordLength_8b; USART_InitStructure.USART_StopBits=USART_StopBits_1; USART_InitStructure.USART_Parity=USART_Parity_No; USART_InitStructure.USART_HardwareFlowControl=USART_HardwareFlowControl_None; USART_InitStructure.USART_Mode=USART_Mode_Rx\|USART_Mode_Tx; USART_Init(USART3,&USART_InitStructure); USART_ITConfig(USART3,USART_IT_RXNE,ENABLE); USART_Cmd(USART3,ENABLE); USART_ClearFlag(USART3,USART_FLAG_TC); } void USART4_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; USART_InitTypeDef USART_InitStructure; GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOC, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin=GPIO_Pin_11; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(GPIOC, &GPIO_InitStructure); USART_InitStructure.USART_BaudRate = 9600; USART_InitStructure.USART_WordLength = USART_WordLength_8b; USART_InitStructure.USART_StopBits = USART_StopBits_1; USART_InitStructure.USART_Parity = USART_Parity_No ; USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; USART_InitStructure.USART_Mode = USART_Mode_Rx \| USART_Mode_Tx; USART_Init(UART4, &USART_InitStructure); USART_Cmd(UART4, ENABLE); USART_ClearFlag(UART4,USART_FLAG_TC); } void USART5_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; USART_InitTypeDef USART_InitStructure; GPIO_InitStructure.GPIO_Pin=GPIO_Pin_12;//TX GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP; GPIO_Init(GPIOC,&GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin=GPIO_Pin_2;//RX GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IN_FLOATING; GPIO_Init(GPIOD,&GPIO_InitStructure); USART_InitStructure.USART_BaudRate = 9600; USART_InitStructure.USART_WordLength = USART_WordLength_8b; USART_InitStructure.USART_StopBits = USART_StopBits_1; USART_InitStructure.USART_Parity = USART_Parity_No ; USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; USART_InitStructure.USART_Mode = USART_Mode_Rx \| USART_Mode_Tx; USART_Init(UART5, &USART_InitStructure); USART_Cmd(UART5, ENABLE); USART_ClearFlag(UART5,USART_FLAG_TC); } void Usart_SendByte( USART_TypeDef * pUSARTx, uint8_t ch) { USART_SendData(pUSARTx,ch); while (USART_GetFlagStatus(pUSARTx, USART_FLAG_TXE) == RESET); } void Usart_SendString( USART_TypeDef * pUSARTx, char str) { unsigned int k=0; do { Usart_SendByte( pUSARTx, (str + k) ); k++; } while ((str + k)!=’’); while (USART_GetFlagStatus(pUSARTx,USART_FLAG_TC)==RESET) { } } int fputc(int ch,FILE f) { USART_SendData(USART1,(u8)ch); while(USART_GetFlagStatus(USART1,USART_FLAG_TXE)==RESET); return ch; }

2021-12-13 11:22:38 评论举报元办叙