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	积分108金钱108 注册时间2014-10-29在线时间2 小时 | 
 
 
 楼主|
发表于 2014-11-28 23:09:10
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| 回复【2楼】正点原子: ---------------------------------
 原子哥  我现在正在搞UART4,5串口  也看到你的寄存器版本的程序  可以写个库函数版本的吗  搞不定下面是我写串口4你看看有什么问题:
 void uart4_init(u32 bound)
 {
 GPIO_InitTypeDef GPIO_InitStructure;
 USART_InitTypeDef USART_InitStructure;
 NVIC_InitTypeDef NVIC_InitStructure;
 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC,ENABLE);
 RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART4, ENABLE);
 
 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
 GPIO_Init(GPIOC, &GPIO_InitStructure);
 
 
 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
 GPIO_Init(GPIOC, &GPIO_InitStructure);
 
 
 USART_InitStructure.USART_BaudRate = bound;
 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_ITConfig(UART4, USART_IT_RXNE, ENABLE);
 
 USART_Cmd(UART4, ENABLE);
 
 NVIC_InitStructure.NVIC_IRQChannel = UART4_IRQn;//NVIC_InitStructure.NVIC_IRQChannel = UART4_IRQChannel;
 //NVIC_InitStructure.NVIC_IRQChannel = UART4_IRQHandler;
 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=3 ;//?????3
 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;		//????3
 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;			//IRQ????
 NVIC_Init(&NVIC_InitStructure);	//??????????VIC???
 }
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