多个中断在一起怎么配置啊！

翱翔云端的鸟 · 发表于 2014-7-23 08:55:14

串口中断、外部中断1.外部中断2.还有定时器中断，一个有四个中断，我不知道是不是后面的配置把前面的配置给覆盖了，就是没有外部中断，但是我如拿出单个实现，外部中断又可行。

[mw_shl_code=c,true]void NVIC_Configuration(void) { NVIC_InitTypeDef NVIC_InitStructure; /* 配置中断使用组合1*/ NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); /* USART*/ NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority =3; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); /*TIM2*/ NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); NVIC_InitStructure.NVIC_IRQChannel = EXTI2_IRQn; //选择中断通道2 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; //抢占式中断优先级设置为0 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; //响应式中断优先级设置为0 NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE; //使能中断 NVIC_Init(&NVIC_InitStructure); NVIC_InitStructure.NVIC_IRQChannel = EXTI3_IRQn; //选择中断通道3 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2; //抢占式中断优先级设置为1 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2; //响应式中断优先级设置为1 NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE; //使能中断 NVIC_Init(&NVIC_InitStructure);[/mw_shl_code]

这是中断向量配置

翱翔云端的鸟 · 发表于 2014-7-23 08:55:15

把我的多个中断NVIC配置代码贴上来，绝对原创，自我感觉好不错，使用条件编译，且分到同一组中，简直NICE！

[mw_shl_code=c,true]void PA_NVIC_Configuration(NVIC_InitTypeDef NVIC_InitStructure1) { NVIC_InitStructure1.NVIC_IRQChannel = EXTI1_IRQn; NVIC_InitStructure1.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure1.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure1.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure1); } void TIM3_NVIC_Config(NVIC_InitTypeDef NVIC_InitStructure2) { NVIC_InitStructure2.NVIC_IRQChannel = TIM3_IRQn; NVIC_InitStructure2.NVIC_IRQChannelPreemptionPriority = 1; NVIC_InitStructure2.NVIC_IRQChannelSubPriority = 1; NVIC_InitStructure2.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure2); } void TIM2_NVIC_Config(NVIC_InitTypeDef NVIC_InitStructure3) { NVIC_InitStructure3.NVIC_IRQChannel = TIM2_IRQn; NVIC_InitStructure3.NVIC_IRQChannelPreemptionPriority = 2; NVIC_InitStructure3.NVIC_IRQChannelSubPriority = 2; NVIC_InitStructure3.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure3); } void USART1_NVIC_Config(NVIC_InitTypeDef NVIC_InitStructure4) { NVIC_InitStructure4.NVIC_IRQChannel = USART1_IRQn; NVIC_InitStructure4.NVIC_IRQChannelPreemptionPriority = 3; NVIC_InitStructure4.NVIC_IRQChannelSubPriority = 3; NVIC_InitStructure4.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure4); } void NVIC_Configuration(int Interrupt_flag) { NVIC_InitTypeDef NVIC_InitStructure; /* 配置中断使用组合2 抢占式2位，响应式2位*/ NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); if(Interrupt_flag == 1) { /*外部中断1，Z相归零----优先级最高 0 0*/ PA_NVIC_Configuration(NVIC_InitStructure); } if(Interrupt_flag == 2) { /*TIM3中断，编码器解码----优先级 1 1*/ TIM3_NVIC_Config(NVIC_InitStructure); } if(Interrupt_flag == 3) { /*TIM2中断，数据帧接收完毕判断----优先级 2 2*/ TIM2_NVIC_Config(NVIC_InitStructure); } if(Interrupt_flag == 4) { /* USART1中断，数据接收----优先级 3 3*/ USART1_NVIC_Config(NVIC_InitStructure); } }[/mw_shl_code]

这里一共用到了四个中断，外部中断1，TIM3,TIM2,以及串口中断，这是NVIC配置

翱翔云端的鸟 · 发表于 2014-7-23 08:57:34

[mw_shl_code=c,true]void EXTI_PB0_Config(void) { GPIO_InitTypeDef GPIO_InitStructure; EXTI_InitTypeDef EXTI_InitStructure; /* config the extiline(PB0) clock and AFIO clock */ RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO,ENABLE); /* config the NVIC(PB0) */ NVIC_Configuration(); /* EXTI line gpio config(PB0) */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; // 上拉输入 GPIO_Init(GPIOB, &GPIO_InitStructure); /* EXTI line(PB0) mode config */ GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource0|GPIO_PinSource1); EXTI_InitStructure.EXTI_Line = EXTI_Line0|EXTI_Line1; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; //下降沿中断 EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); }[/mw_shl_code]

这是我的外部中断线模式配置

翱翔云端的鸟 · 发表于 2014-7-23 08:58:06

外部中断0和外部中断1能不能像上面这样写啊！

天才少年 · 发表于 2014-7-27 10:21:19

中断函数名不能随便写，具体看startup_stm32f40xx.s

也可以把这里面改成你写的那个

翱翔云端的鸟 · 发表于 2014-7-28 08:23:18

回复【4楼】天才少年:
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你没有弄清我的问题啊！我是想问多个中断在一起怎么配置,你说的这个中断函数名我知道

天才少年 · 发表于 2014-7-28 09:08:53

把那个=变成|=

翱翔云端的鸟 · 发表于 2014-7-28 10:18:08

回复【6楼】天才少年:
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不知道你在说哪个地方，不过我已经自己解决了，

翱翔云端的鸟 · 发表于 2014-7-29 12:34:07

当你需要NVIC配置中断的时候，只需调用NVIC_Configuration（）函数即可，给他一个参数，他就会去调用你队友的NVIC配置函数，这样的好处是多个中断在一个组中，而且使用彼此独立，当我配置串口或者定时器需要使用NVIC时，调用NVIC_Configuration（对应参数）即可，这样相互之间不干扰，看得很清楚！小白的代码，刚学习STM32二十多天，还买了一本原子哥的玩转stm32库函数板版。