外部中断一直进不去，我用的是 keil 4,无论是仿真还是硬件都不行。
使用例子是能够运行的，所以排除了硬件的原因。。
EXTI_GenerateSWInterrupt(EXTI_Line0); //使用这条是能够进入到中断的，但是硬件、仿真就是不行！！
现在代码贴上，，求解答！！
[mw_shl_code=c,true]#include "stm32f10x.h"
//#include "stm32f10x_exti.h"
//#include "stm32f10x_gpio.h"
extern int time;
void EXTI_configuration(void);
void GPIO_configuration(void);
void RCC_configuration(void);
int main()
{
RCC_configuration();
GPIO_configuration();
EXTI_configuration();
while(1)
{
if(time)
{
GPIO_SetBits(GPIOE, GPIO_Pin_5);
}
else
{
GPIO_ResetBits(GPIOE, GPIO_Pin_5);
}
}
}
void GPIO_configuration(void)
{ GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE|RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE);
/* Configure all the GPIOA in Input Floating mode */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5|GPIO_Pin_6;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOE, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOC, &GPIO_InitStructure);
}
void EXTI_configuration(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
GPIO_EXTILineConfig(GPIO_PortSourceGPIOC,GPIO_PinSource0);
EXTI_ClearITPendingBit(EXTI_Line0);
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_Line = EXTI_Line0 ;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn; //通道
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;//
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2; //
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void RCC_configuration(void)
{
ErrorStatus HSEStartUpStatus;
RCC_DeInit();
RCC_HSEConfig(RCC_HSE_ON);
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if (HSEStartUpStatus == SUCCESS)
{
RCC_HCLKConfig(RCC_SYSCLK_Div1);
RCC_PCLK2Config(RCC_HCLK_Div1);
RCC_PCLK1Config(RCC_HCLK_Div2);
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
RCC_PLLCmd(ENABLE);
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) {}
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
while(RCC_GetSYSCLKSource() != 0x08) ;
}
}[/mw_shl_code]
现在把工程附上，真心求解决！问题卡在这里已经2天了。。 | 
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发表于 2014-7-13 17:03:48
楼主
发表于 2014-7-13 23:18:34
