STM32f407 一个串口收传给另一个串口再发送出去串口收发设置.docx

/* Includes -*/ #include stm32f4xx_conf.h #include void Delay(_IO uint32_t nCount);/*/函数功能：延时ms/入口参数：延时长度/出口参数：无/备 注：/*void Delay_ms(u16 ms)u32 j;for(;ms0;ms-)for(j=0;j9700;j+); /*/函数功能：IO配置/入口参数：无/出口参数：无/备 注：/*void GPIO_Configuration(void)GPIO_InitTypeDef GPIO_InitStructure; /* GPIOD Periph clock enable */RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);/* Configure PD12, PD13, PD14 and PD15 in output pushpull mode */GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;GPIO_Init(GPIOC, &GPIO_InitStructure); /* Configure PA0 pin as input floating */GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;/GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;/GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;/GPIO_Init(GPIOA, &GPIO_InitStructure); /*/函数功能：UART配置/入口参数：无/出口参数：无/备 注：/*void USART_Configuration(void)USART_InitTypeDef USART_InitStructure;USART_InitStructure.USART_BaudRate =9600; /波特率 USART_InitStructure.USART_WordLength = USART_WordLength_8b; /8 位数据 USART_InitStructure.USART_StopBits = USART_StopBits_1; /停止位USART_InitStructure.USART_Parity = USART_Parity_No;/ 校验方式：无USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; /硬件流控制失能USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; / 发送/接收使能/* Enable GPIO clock */RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);/* Enable UART clock */RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);/* Connect PXx to USARTx_Tx*/GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_USART3); /* Connect PXx to USARTx_Rx*/GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_USART3);GPIO_StructInit(&GPIO_InitStructure);/* Configure USART Tx as alternate function */GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOC, &GPIO_InitStructure);/* Configure USART Rx as alternate function */GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;GPIO_Init(GPIOC, &GPIO_InitStructure);/* USART configuration */USART_Init(USART3,&USART_InitStructure);USART_ITConfig(USART3,USART_IT_RXNE,ENABLE);USART_ITConfig(USART3,USART_IT_TXE,ENABLE);/* Enable USART */USART_Cmd(USART3, ENABLE);/* Enable UART clock */RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART6, ENABLE);/* Connect PXx to USARTx_Tx*/GPIO_PinAFConfig(GPIOC, GPIO_PinSource6, GPIO_AF_USART6); /* Connect PXx to USARTx_Rx*/GPIO_PinAFConfig(GPIOC, GPIO_PinSource7, GPIO_AF_USART6);GPIO_StructInit(&GPIO_InitStructure);/* Configure USART Tx as alternate function */GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOC, &GPIO_InitStructure);/* Configure USART Rx as alternate function */GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;GPIO_Init(GPIOC, &GPIO_InitStructure);/* USART configuration */USART_Init(USART6,&USART_InitStructure);USART_ITConfig(USART6,USART_IT_RXNE,ENABLE);/USART_ITConfig(USART6,USART_IT_TXE,ENABLE);/* Enable USART */USART_Cmd(USART6, ENABLE);void NVIC_Config(void) NVIC_InitTypeDef NVIC_InitStructure;NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);/嵌套优先级分组为1NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn; /嵌套通道为USART3_IRQnNVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; /抢占优先级为 0NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; /响应优先级为 0NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; /通道中断使能NVIC_Init(&NVIC_InitStructure);NVIC_InitStructure.NVIC_IRQChannel = USART6_IRQn; /嵌套通道为USART6_IRQnNVIC_InitStructure.NVIC_IRQChannelPreemptionPriority =0; /抢占优先级为 0NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; /响应优先级为 0NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; /通道中断使能NVIC_Init(&NVIC_InitStructure);/* * brief Main program * param None * retval None* * brief Delay Function. * param nCount:specifies the Delay time length. * retval None */void Delay(_IO uint32_t nCount) while(nCount-) /*int fputc(int ch, FILE *f) /* Place your implementation of fputc here */ /* e.g. write a character to the USART */ USART_SendData(USART6, (uint8_t) ch); /* Loop until the end of transmission */ while (USART_GetFlagStatus(USART6, USART_FLAG_TC) = RESET) return ch;#ifdef USE_FULL_ASSERT/* * brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * param file: pointer to the source file name * param line: assert_param error line source number * retval None */void assert_failed(uint8_t* file, uint32_t line) /* User can add his own implementation to report the file name and line number, ex: printf(Wrong parameters value: file %s on line %drn, file, line) */ /* Infinite loop */ while (1) #endif/* * */ /* * */ /*中断*/uint8_t Uart3_Buffer255;uint8_t temp;uint8_t Flag=0;int RxCounter=0;int i=0;void USART3_IRQHandler(void) if(USART_GetITStatus(USART3,USART_IT_RXNE)!= RESET) /中断产生 USART_ClearITPendingBit(USART3,USART_IT_RXNE); /清除中断标志if(RxCounter=0) temp=USART_ReceiveData(USART3); if(temp=FRAMEHEAD) /*FRAMEHEAD*/ Uart3_BufferRxCounter+=temp; else Uart3_BufferRxCounter+=USART_ReceiveData(USART3); if(RxCounter=FRAMELEN) /*FRAMELEN*/ Flag=1; RxCounter=0; if(USART_GetFlagStatus(USART3,USART_FLAG_ORE) = SET) USART_ClearFlag(USART3,USART_FLAG_ORE); USART_ReceiveData(USART3); if(USART_GetITStatus(USART3,USART_IT_TXE)!= RESET) USART_ClearITPendingBit(USART3,USART_IT_TXE); if(Flag) for(i=0;iFRAMELEN;i+) USART_SendData(USART3,Uart3_Bufferi); /发送数据 while(USART_GetFlagStatus(USART3,USART_FLAG_TC)=RESET); Flag=0; u