大家好 这是我配置的PWR 停止低功耗模式 现在问题是进了停止模式 但是中断（EXTI PB.9) 退不出来 请帮我看看那里有问题 ？
#include "stm32f10x_lib.h"
#include "GLCD.h"
ErrorStatus HSEStartUpStatus;
u8 ascii[13];
u8 flag=0x00,ka=0x00,hao=0x00;
void RCC_Configuration(void);
void NVIC_Configuration(void);
void Timer_Configuration(void);
void EXTI_Configuration(void);
void GPIO_Configuration(void);
void SysTick_Configuration(void);
void SYSCLKConfig_STOP(void);
void delay(u8 time);
int main(void)
{
#ifdef debug
debug();
#endif
RCC_Configuration();
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
Timer_Configuration();
EXTI_Configuration();
NVIC_Configuration();
GPIO_Configuration();
SysTick_Configuration();
/* Turn on led connected to PC.06 */
GPIO_SetBits(GPIOD, GPIO_Pin_8);
/* Turn off led connected to PC.09 */
GPIO_ResetBits(GPIOD, GPIO_Pin_11);
GLCD_init(); //初始化
GLCD_clear(White);
GLCD_setTextColor(Red);
GLCD_displayStringLn(Line1," ***************");
GLCD_displayStringLn(Line8," ***************");
while(1)
{
delay(200);
if(flag==0x01)
{
flag=0x00;
ka++;
ascii[0]=' ';
ascii[1]=' ';
ascii[2]=' ';
ascii[3]=' ';
ascii[4]=' ';
ascii[5]='T';
ascii[6]='I';
ascii[7]='M';
ascii[8]='E';
ascii[9]=' ';
ascii[10]=ka/100+0x30;
ascii[11]=ka%100/10+0x30;
ascii[12]=ka%100%10+0x30;
GLCD_displayStringLn(Line3,(u8*)ascii);
}
delay(200);
if(GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_7)==0)
{
GPIO_SetBits(GPIOD, GPIO_Pin_11);
/* Turn off led connected to PC.06 */
GPIO_ResetBits(GPIOD, GPIO_Pin_8);
/* Request to enter STOP mode with regulator ON */
// __WFI();
// PWR_WakeUpPinCmd(ENABLE);
/* At this stage the system has resumed from STOP mode -------------------*/
PWR_EnterSTOPMode(PWR_Regulator_ON, PWR_STOPEntry_WFI);
/* Turn on led connected to PC.06 */
GPIO_SetBits(GPIOD, GPIO_Pin_9);
/* Configures system clock after wake-up from STOP: enable HSE, PLL and select PLL
as system clock source (HSE and PLL are disabled in STOP mode) */
SYSCLKConfig_STOP();
/* Turn off led connected to PC.09 */
GPIO_ResetBits(GPIOD, GPIO_Pin_9);
}
}
}
void RCC_Configuration(void)
{
/*恢复时钟寄存器为默认值 */
RCC_DeInit();
/*外部时钟使能*/
RCC_HSEConfig(RCC_HSE_ON);
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
/* Enable Prefetch Buffer */
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
/* Flash 2 wait state */
FLASH_SetLatency(FLASH_Latency_2);
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK/2 */
RCC_PCLK1Config(RCC_HCLK_Div2);
/* PLLCLK = 8MHz * 9 = 72 MHz */
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); //8X2MHz
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{
}
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while(RCC_GetSYSCLKSource() != 0x08)
{
}
}
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE); //使能GPIOD TIM2
}
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
#ifdef VECT_TAB_RAM
/* Set the Vector Table base location at 0x20000000 */
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else /* VECT_TAB_FLASH */
/* Set the Vector Table base location at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQChannel; //TIM2全局中断 通道
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_Init(&NVIC_InitStructure);
}
void EXTI_Configuration(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
/* Connect EXTI Line9 to PB.09 */
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9);
/* Configure EXTI Line9 to generate an interrupt on falling edge */
EXTI_ClearITPendingBit(EXTI_Line9);
EXTI_InitStructure.EXTI_Line = EXTI_Line9;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Configure EXTI Line17(RTC Alarm) to generate an interrupt on rising edge
EXTI_ClearITPendingBit(EXTI_Line17);
EXTI_InitStructure.EXTI_Line = EXTI_Line17;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_Init(&EXTI_InitStructure); */
}
void Timer_Configuration(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_TimeBaseStructure.TIM_Period=2000; //自动重装载寄存器的值 1s
TIM_TimeBaseStructure.TIM_Prescaler= (36000 - 1); //时钟预分频数
TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1; //时钟分割0x00
TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up; //向上计数模式
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
TIM_ClearFlag(TIM2, TIM_FLAG_Update); //清除溢出中断标志
TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE);//标志位 当TIM_IT_Update,ENABLE 定时时间到
TIM_Cmd(TIM2, ENABLE);
}
void SYSCLKConfig_STOP(void)
{
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{
}
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while(RCC_GetSYSCLKSource() != 0x08)
{
}
}
}
void SysTick_Configuration(void)
{
/* Select AHB clock(HCLK) as SysTick clock source */
SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);
/* Set SysTick Priority to 3 */
NVIC_SystemHandlerPriorityConfig(SystemHandler_SysTick, 3, 0);
/* SysTick interrupt each 1ms with HCLK equal to 72MHz */
SysTick_SetReload(72000);
/* Enable the SysTick Interrupt */
SysTick_ITConfig(ENABLE);
}
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOD
|RCC_APB2Periph_AFIO, ENABLE);
/* Configure PC.06, PC.07, PC.08 and PC.09 as Output push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11; //LED
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/* Configure PB9 as input floating (EXTI Line9) */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; //EXTI
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* Configure PA7 as input floating */ //GPIO
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
void delay(u8 time)
{
u8 a;
u16 b;
for(a=time;a>0;a--)
for(b=1000;b>0;b--);
}
void TIM2_IRQHandler(void)
{
if(TIM_GetITStatus(TIM2,TIM_IT_Update)!=RESET)
{
TIM_ClearITPendingBit(TIM2 , TIM_FLAG_Update);
flag=0x01;
}
}
void EXTI9_5_IRQHandler(void)
{
if(EXTI_GetITStatus(EXTI_Line9) != RESET)
{
/* Toggle Led connected to PC.07 */
GPIO_WriteBit(GPIOD, GPIO_Pin_8, (BitAction)(1-GPIO_ReadOutputDataBit(GPIOD, GPIO_Pin_8)));
/* Clear EXTI line9 pending bit */
EXTI_ClearITPendingBit(EXTI_Line9);
}
} |
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