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EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
/* 使能SYSCFG时钟 */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
/* Enable GPIOH clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOH, ENABLE);
/* Configure PH10,11 pin as input floating */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10|GPIO_Pin_11;
GPIO_Init(GPIOH, &GPIO_InitStructure);
//GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
//GPIO_Init(GPIOH, &GPIO_InitStructure);
/* 连接 EXTI Line11 到 PH11 引脚 */
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOH, EXTI_PinSource11);
/* 连接 EXTI Line10 到 PH10 引脚 */
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOH, EXTI_PinSource10);
/* 配置 EXTI LineXXX */
EXTI_InitStructure.EXTI_Line = EXTI_Line10 | EXTI_Line11;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* 设置NVIC优先级分组为Group2:0-3抢占式优先级,0-3的响应式优先级 */
//NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x02;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x02;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void EXTI15_10_IRQHandler(void)
{
uint16_t MCjsq;
if(EXTI_GetITStatus(EXTI_Line10) != RESET)
{
//EXTI->IMR&=~(1<<10); /* 关闭中断 */
EXTI_ClearITPendingBit(EXTI_Line10); /* 清除中断标志位 */
wg_wucha.flag=1;
//g_ucKey1IRQ = 10;
}
if(EXTI_GetITStatus(EXTI_Line11) != RESET)
{
//EXTI->IMR&=~(1<<11); /* 关闭中断 */
EXTI_ClearITPendingBit(EXTI_Line11); /* 清除中断标志位 */
yg_wucha.flag=1;
//g_ucKey1IRQ = 11;
}
} |
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