新手：EXTI9_5_IRQChannel undefined

貂绒鹿晗梅提问时间：2016-3-9 18:37 /

新手：EXTI9_5_IRQChannel undefined
http://bbs.elecfans.com/jishu_560431_1_1.html
(出处: 中国电子技术论坛)

如题：想做成按K1键灯亮 K1 = USERBUTTON = PA.8 灯 = PF.8

问题是：
配置NVIC,EXTI9_5_IRQChannel  一直undefined。。注释掉就没问题了
报错内容如下：

..\..\..\stm32library\STM32F10x_StdPeriph_Lib_V3.5.0\Project\STM32F10x_StdPeriph_Template\main.c(16): error:  #20: identifier "EXTI9_5_IRQChannel" is undefined
..\..\..\stm32library\STM32F10x_StdPeriph_Lib_V3.5.0\Project\STM32F10x_StdPeriph_Template\main.c:       NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQChannel;  //选择中断通道5
..\..\..\stm32library\STM32F10x_StdPeriph_Lib_V3.5.0\Project\STM32F10x_StdPeriph_Template\main.c:                                              ^
..\..\..\stm32library\STM32F10x_StdPeriph_Lib_V3.5.0\Project\STM32F10x_StdPeriph_Template\main.c: ..\..\..\stm32library\STM32F10x_StdPeriph_Lib_V3.5.0\Project\STM32F10x_StdPeriph_Template\main.c: 0 warnings, 1 error
..\..\..\stm32library\STM32F10x_StdPeriph_Lib_V3.5.0\Project\STM32F10x_StdPeriph_Template\main.c - 1 Error(s), 0 Warning(s).

程序如下
割线--------------------------------------------------------
程序如下
#include "stm32f10x.h"
//配置RCC
void rcc_cfg()
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOF,ENABLE);
}
//配置NVIC
void nvic_cfg()
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);

      NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQChannel;  //选择中断通道8
//注释掉上面这句就没问题

      NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2; //抢占式中断优先级设置为2
      NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;  //响应式中断优先级设置为2
      NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;                                  //使能中断
      NVIC_Init(&NVIC_InitStructure);             //根据指定的参数初始化nVIC寄存器
}
//这里一直报错

//配置GPIO
void io_cfg()
{
      GPIO_InitTypeDef GPIO_InitStructure;

      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
      GPIO_Init(GPIOA,&GPIO_InitStructure);

      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
      GPIO_Init(GPIOF,&GPIO_InitStructure);
}
//配置EXTI
void exti_cfg()
{
      EXTI_InitTypeDef EXTI_InitStructure;

      EXTI_ClearITPendingBit(EXTI_Line8);       //清楚中断标志位

      GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource8);       //选择中断管脚PA.8

   EXTI_InitStructure.EXTI_Line = EXTI_Line8 ;  //选择中断线8
   EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; //设置为中断请求，非事件请求
   EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling; //设置中断触发方式为上下降沿触发
   EXTI_InitStructure.EXTI_LineCmd = ENABLE;                                        //外部中断使能
   EXTI_Init(&EXTI_InitStructure);
}
void EXTI9_5_IRQHandler(void)
{
   //点亮LED灯
   GPIO_ResetBits(GPIOF,GPIO_Pin_8);
   //清空中断标志位，防止持续进入中断
   EXTI_ClearITPendingBit(EXTI_Line8);
}

int main()
{
      rcc_cfg();
      io_cfg();
      nvic_cfg();
      exti_cfg();

      GPIO_SetBits(GPIOF,GPIO_Pin_8);

      while(1);

}