void UART5_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_GPIOD, ENABLE );
RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART5, ENABLE );
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; //UART5 TX;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure); //端口C;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; //UART5 RX;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //浮空输入;
GPIO_Init(GPIOD, &GPIO_InitStructure); //端口D;
USART_InitStructure.USART_BaudRate = 9600; //波特率;
USART_InitStructure.USART_WordLength = USART_WordLength_8b; //数据位8位;
USART_InitStructure.USART_StopBits = USART_StopBits_1; //停止位1位;
USART_InitStructure.USART_Parity = USART_Parity_No ; //无校验位;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
//无硬件流控;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
//收发模式;
USART_Init(UART5, &USART_InitStructure);//配置串口参数;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置中断组,4位抢占优先级,4位响应优先级;
NVIC_InitStructure.NVIC_IRQChannel = UART5_IRQn; //中断号;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //抢占优先级;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //响应优先级;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
USART_ITConfig(UART5, USART_IT_RXNE, ENABLE);
USART_Cmd(UART5, ENABLE); //使能串口;
}
void UART5_Send_Byte(u8 Data) //发送一个字节;
{
USART_SendData(UART5,Data);
while( USART_GetFlagStatus(UART5, USART_FLAG_TC) == RESET );
}
void UART5_Send_String(u8 *Data) //发送字符串;
{
while(*Data)
UART5_Send_Byte(*Data++);
}