STM32F030K6T6无法进入中断,在线等大神
void Usart_Init(void)
{
//GPIO¶Ë¿ÚÉèÖÃ
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDefUSART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
//DMA_InitTypeDef DMA_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_AHBPeriph_GPIOA, ENABLE); //ʹÄÜUSART1£¬GPIOAʱÖÓ
USART_DeInit(USART1);
GPIO_PinAFConfig(GPIOA,GPIO_PinSource9,GPIO_AF_1);
GPIO_PinAFConfig(GPIOA,GPIO_PinSource10,GPIO_AF_1);
//USART1_TX PA.9
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_10; //PA.9
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; //¸´ÓÃÍÆÍìÊä³ö
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOA, &GPIO_InitStructure); //³õʼ»¯PA9
//USART ³õʼ»¯ÉèÖÃ
USART_InitStructure.USART_BaudRate = 9600;//Ò»°ãÉèÖÃΪ9600;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;//×Ö³¤Îª8λÊý¾Ý¸ñʽ
USART_InitStructure.USART_StopBits = USART_StopBits_1;//Ò»¸öֹͣλ
USART_InitStructure.USART_Parity = USART_Parity_No;//ÎÞÆæżУÑéλ
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//ÎÞÓ²¼þÊý¾ÝÁ÷¿ØÖÆ
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //ÊÕ·¢Ä£Ê½
USART_Init(USART1, &USART_InitStructure); //³õʼ»¯´®¿Ú
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//¿ªÆôÖжÏ
USART_ITConfig(USART1, USART_IT_IDLE, ENABLE);//
//USART_DMACmd(USART1,USART_DMAReq_Rx,ENABLE); //DMA enable
USART_Cmd(USART1, ENABLE); //
//Usart1 NVIC ÅäÖÃ
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 1;//×ÓÓÅÏȼ¶3
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQͨµÀʹÄÜ
NVIC_Init(&NVIC_InitStructure); //¸ù¾ÝÖ¸¶¨µÄ²ÎÊý³õʼ»¯VIC¼Ä´æÆ÷
}
void USART1_IRQHandler(void) //´®¿Ú1ÖжϷþÎñ³ÌÐò
{
uint8_t Res;
GPIO_ResetBits(GPIOA,GPIO_Pin_8);
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)//½ÓÊÕÖжÏ(½ÓÊÕµ½µÄÊý¾Ý±ØÐëÊÇ0x0d 0x0a½áβ)
{
Res =USART_ReceiveData(USART1);//(USART1->DR); //¶ÁÈ¡½ÓÊÕµ½µÄÊý¾Ý
USART1_RX_BUF=Res;
len_usart1++;
//LedShinning();
//GPIO_ResetBits(GPIOA,GPIO_Pin_8);
//Receive_Done = 1;
}
if(USART_GetITStatus(USART1, USART_IT_IDLE) != RESET)//½ÓÊÕÖжÏ(½ÓÊÕµ½µÄÊý¾Ý±ØÐëÊÇ0x0d 0x0a½áβ)
{
USART_ClearITPendingBit(USART1,USART_IT_IDLE);
Receive_Done = 1;
//LedShinning();
//GPIO_ResetBits(GPIOA,GPIO_Pin_8);
}
没有打开引脚复用功能的时钟
使用串口的时候引脚属于复用功能需要打开复用功能时钟就是AFIO的时钟
并且注意一下A口线的时钟是AHB的时钟线怎么用APB2的函数配置我没看这个编程手册不知道A口线是哪个时钟总线的留意一下 mylovemcu 发表于 2020-7-14 19:42
没有打开引脚复用功能的时钟
使用串口的时候引脚属于复用功能需要打开复用功能时钟就是AFIO的时钟
并 ...
现在STM32忘上位机发送没有问题 不是我泼凉水 看到你发个帖子都这么的随意 不用心, 我也没有看的欲望了 , 至少排版的整齐点,把乱码要不删除要不就该人人类能看懂的符号这样不好吗? 你TX和RX都初始化为输出模式?还都上拉?试试把RX初始化为浮空输入 干嘛不用HAL呢,用CUBEMX配置,省得自己搞还出错。 初始化顺序调换一下。。。先把引脚初始化 ,再设置复用功能。。。 HAL库调试,LL库最后优化代码速度。 孩子们都用库函数,看着爱莫能助!
乱码是因为没选用简体中文(在edit ->config 设置)
用PA9、PA10使用串口1不必复用,将PA9设为推挽输出,PA10设为上拉输入,分二次进行初始化,不可以放在一起一步完成,另外,将涉及复用的部分全注释掉,试试看,应该没问题! 斯文人 发表于 2020-7-15 09:15
不是我泼凉水 看到你发个帖子都这么的随意 不用心, 我也没有看的欲望了 , 至少排版的整齐点,把乱码要不 ...
void Usart_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDefUSART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_AHBPeriph_GPIOA, ENABLE);
USART_DeInit(USART1);
GPIO_PinAFConfig(GPIOA,GPIO_PinSource9,GPIO_AF_1);
GPIO_PinAFConfig(GPIOA,GPIO_PinSource10,GPIO_AF_1);
//USART1_TX PA.9
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_10; //PA.9
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; //¸´ÓÃÍÆÍìÊä³ö
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
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);
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
USART_ITConfig(USART1, USART_IT_IDLE, ENABLE);
USART_Cmd(USART1, ENABLE);
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void USART1_IRQHandler(void)
{
uint8_t Res;
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
Res =USART_ReceiveData(USART1);//(USART1->DR);
USART1_RX_BUF=Res;
len_usart1++;
}
if(USART_GetITStatus(USART1, USART_IT_IDLE) != RESET)
{
USART_ClearITPendingBit(USART1,USART_IT_IDLE);
}
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