c - STM32L-Discovery EXTI中断失败

Question

在 IAR 编译器上开发 STM32L151xx。

我正在尝试获取 EXTI 中断但无处可去，这是我的代码，它基本上直接来自示例代码但无法正常工作，

  EXTI_InitTypeDef EXTI_InitStructure;
  NVIC_InitTypeDef NVIC_InitStructure;
  GPIO_InitTypeDef GPIO_InitStructure;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
  SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource10);
  EXTI_InitStructure.EXTI_Line = EXTI_Line1;
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;  
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);
  NVIC_InitStructure.NVIC_IRQChannel = EXTI1_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;//0x0F;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;//0x0F;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
  EXTI_GenerateSWInterrupt(EXTI_Line1);

当我将 PA10 引脚设置为高电平时，没有软件中断，代码没有进入 EXTI1_IRQHandler()，似乎缺少什么？编辑在 EXTI_GetFlagStatus 我得到 0和 EXTI_GETITStatus 我得到 0

Answer 1

PA9 连接到Line9，PA10 Line 10 中断服务通过EXTI9_5_IRQHandler ( EXTI9_5_IRQn) 和 EXTI15_10_IRQHandler (EXTI15_10_IRQn)