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在 void USB_Interrupts_Config(void) 里面为什么要加外部中断的配置 /* Configure the EXTI line 18 connected internally to the USB IP */ EXTI_ClearITPendingBit(EXTI_Line18); EXTI_InitStructure.EXTI_Line = EXTI_Line18; // USB resume from suspend mode EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising; EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); 对USB唤醒有什么作用? |
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正点原子的回答如下:
USB的唤醒中断,就是EXTI_Line18
咱也是新手,慢慢理解吧