/*USART1初始化*/
void USART1_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_Init (USART1,&USART_InitStructure);
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE); /*Enables USART1 interrupts,USART_IT_RXNE: Receive Data register not empty interrupt */
USART_Cmd (USART1,ENABLE);
NVIC_USART1_Configuration();
}
/*******************************************************************************
* Function Name : usart_rxtx
* Description : Print "Welcome to CooCox!" on Hyperterminal via USART1.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void usart_init(void)
{
NVIC_USART1_Configuration();
NVIC_USART2_Configuration();
USART_Configuration();
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);
}
