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发表于 2016-1-23 22:50:07
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- void NVIC_USART1_Config(void)
- {
- NVIC_InitTypeDef NVIC_InitStructure;
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
-
- NVIC_InitStructure.NVIC_IRQChannel=USART1_IRQn;
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=1;
- NVIC_InitStructure.NVIC_IRQChannelSubPriority=1;
- NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
- NVIC_Init(&NVIC_InitStructure);
- }
- void USART1_Config(void)
- {
- GPIO_InitTypeDef GPIO_InitStructure;
- USART_InitTypeDef USART_InitStructure;
-
-
- RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA , ENABLE);
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
- //′®¿ú1¶Ôó|òy½Å¸′óÃó3éä
- GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_USART1);
- GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_USART1);
-
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
- GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
- GPIO_Init(GPIOA, &GPIO_InitStructure);
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
- GPIO_Init(GPIOA, &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(USART1,&USART_InitStructure);
- NVIC_USART1_Config();
- USART_ITConfig(USART1,USART_IT_RXNE,ENABLE);
-
- USART_Cmd(USART1,ENABLE);
- }
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