USART能不能唤醒STM32的Stop mode？

只看该作者 · 2014-7-11 15:20

if(EXTI_GetITStatus(EXTI_Line10) != RESET)
{
   LED1 = 0;
   SystemInit();
   delay_init(72);
   printf(" USART WAKEUP stop mode testing ");
}
EXTI_ClearITPendingBit(EXTI_Line10);

//
GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource10);
EXTI_InitStructure.EXTI_Line=EXTI_Line10;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
捣鼓了一天了，一直没有捣鼓通USART唤醒Stop mode.但是手册上说Any interrupt都能唤醒MCU。然后又试过单独一个RXD作为外部事件来唤醒，但是还是没成！之前通过按键成功控制了，但是到了USART就行不同了。当我单独将RXD作为唤醒引脚时，USART输入又错误！！！

只看该作者 · 2014-7-11 15:21

补充内容：
GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource10)EXTI_InitStructure.EXTI_Line=EXTI_Line10; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling; EXTI_Trigger_Falling;EXTI_Trigger_Rising EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); // if(EXTI_GetITStatus(EXTI_Line10) != RESET) { LED1 = 0; SystemInit(); delay_init(72); printf(" USART WAKEUP stop mode testing "); } EXTI_ClearITPendingBit(EXTI_Line10); //Çå³ýEXTI0ÏßÂ·¹ÒÆðÎ»