stm32f103串口3的接收中断进不去
以下是我的串口3的初始化程序和中断程序,大神们请帮小弟看看,问题出在哪儿了,不胜感激void USART3_Init(void)
{
GPIO_InitTypeDefGPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDefNVIC_InitStructure;
/* config USART3 clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
/* USART3 GPIO config */
/* Configure USART3 Tx (PB.10) as alternate function push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* Configure USART3 Rx (PB.11) as input floating */
GPIO_InitStructure.GPIO_Pin= GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* USART3 mode config */
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(USART3, &USART_InitStructure);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
USART_ITConfig(USART3, USART_IT_RXNE, ENABLE);
USART_Cmd(USART3, ENABLE);
}
void USART3_IRQHandler(void)
{
if(USART_GetITStatus(USART3, USART_IT_RXNE) != RESET)
{
/* Read one byte from the receive data register */
RXBuffer = (USART_ReceiveData(USART3) & 0x7F);
/* Clear the USART1 Receive interrupt */
USART_ClearITPendingBit(USART3, USART_IT_RXNE);
if(RXCounter == 100)
{
/* Disable the USART Receive interrupt */
USART_ITConfig(USART3, USART_IT_RXNE, DISABLE);
}
}
}
标准库?上HAL,一键化配置!!!! 可以看看能不能输出,确定外设是好的 推荐CubeMX配置工程。方便快捷 anobodykey 发表于 2017-9-23 09:48
可以看看能不能输出,确定外设是好的
输出没有问题 大佬想问下怎么解决的呀?
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