USART3源码

久爱霸气 · 发表于 2015-10-24 17:06:30

求 USART3源码（库函数版）

正点原子 · 发表于 2015-10-24 17:06:31

论坛搜索，自己找参考。

龙之谷 · 发表于 2015-10-24 17:38:32

你这手伸的很直接

久爱霸气 · 发表于 2015-10-24 17:50:46

[mw_shl_code=c,true]void GPIO_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; //?ù?÷?????á????±??? //USART1_TX -> PC10 , USART1_RX -> PC11 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; //????PC.10(TXD) ?? PC.11 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //??????????50MHZ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //?????????????????ì???? GPIO_Init(GPIOC,&GPIO_InitStructure); //??????GPIOC?????÷ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11; //????PC.10(TXD) ?? PC.11?¨RXD?© GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //??????????50MHZ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //?????????????????? GPIO_Init(GPIOC,&GPIO_InitStructure); //??????GPIOA?????÷ RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART3,ENABLE); RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART3,DISABLE); //??USART3??TXD??RXD????????PC10??pc11 GPIO_PinRemapConfig(GPIO_PartialRemap_USART3,ENABLE); } void USART3_Configuration(void) { USART_InitTypeDef USART_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_Mode = USART_Mode_Rx|USART_Mode_Tx; USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; USART_Init(USART3, &USART_InitStructure); USART_ITConfig(USART3, USART_IT_RXNE, ENABLE); USART_Cmd(USART3,ENABLE); }[/mw_shl_code]

[mw_shl_code=c,true]void USART3_IRQHandler(void) { if(USART_GetFlagStatus(USART3, USART_FLAG_RXNE) == SET) { USART_ClearFlag(USART3,USART_IT_TC); ch=USART_ReceiveData(USART3); USART_SendData(USART3, ch); // TIM_Cmd(TIM2, ENABLE); } }[/mw_shl_code]

我想看看我的问题出在哪里