EXTI使程序卡死

2019-07-21 03:47发布

[mw_shl_code=c,true]#include "standby.h" #include "stm32f10x_exti.h" #include "stm32f10x_gpio.h" #include "stm32f10x_rcc.h" #include "misc.h" #include "key.h" #include "delay.h" #include "led.h" #include "stm32f10x_pwr.h" void StanByMode_Init(void) { GPIO_InitTypeDef GPIO_InitStruct; NVIC_InitTypeDef NVIC_InitStruct; EXTI_InitTypeDef EXTI_InitStruct; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_AFIO,ENABLE); NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); GPIO_InitStruct.GPIO_Pin = GPIO_Pin_0; GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPD; GPIO_Init(GPIOA,&GPIO_InitStruct); GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource0); EXTI_InitStruct.EXTI_Line = EXTI_Line0; EXTI_InitStruct.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStruct.EXTI_Trigger = EXTI_Trigger_Rising; EXTI_InitStruct.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStruct); NVIC_InitStruct.NVIC_IRQChannel = EXTI0_IRQn; NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0; NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStruct); } void Sys_Standby(void) { RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE); PWR_WakeUpPinCmd(ENABLE); PWR_EnterSTANDBYMode(); } void EXTI0_IRQHandeler(void) { EXTI_ClearITPendingBit(EXTI_Line0); if(KEY) //#define KEY GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_0) { delay_ms(10); if(KEY) { Sys_Standby(); } } }[/mw_shl_code] 问题是这样的:我现在在做原子老大的待机实验,以上为我自己编写的代码,主函数就是红灯闪烁,按理说当我按下wk_up按键时应该进入休眠状态,再按一下复位,但是现在当我按下按键时,程序直接卡死在那,也就是说直接定格在灯闪烁的某个状态,只能复位,我想问问各位这种情况如何解决,已快崩溃!!!
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