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EXTI_InitTypeDef and NVIC_InitTypeDef not recognized.

MAkke
Associate III

I set up several pins as EXTI in the CubeMX configurator, but STM32CubeIDE doesn't recognize the EXTI_InitTypeDef and NVIC_InitTypeDef datatypes. Based on the configuration I would expect the correct libraries to be included, but when compiling I get the error "unknown type name".

I get the error when I use the following code, which was originally written for some STM32F4, then adjusted for application on the STM32F303CC.

void Configure_PA3(void) {

   /* Set variables used */

   GPIO_InitTypeDef GPIO_InitStruct;

   EXTI_InitTypeDef EXTI_InitStruct; // <-

   NVIC_InitTypeDef NVIC_InitStruct; // <-

   /* Enable clock for GPIOA */

   RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);

   /* Enable clock for SYSCFG */

   RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);

   /* Set pin as input */

   GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN;

   GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;

   GPIO_InitStruct.GPIO_Pin = GPIO_Pin_3;

   GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;

   GPIO_InitStruct.GPIO_Speed = GPIO_Speed_72MHz;

   GPIO_Init(GPIOB, &GPIO_InitStruct);

   /* Tell system that you will use PB12 for EXTI_Line12 */

   SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource3);

   /* PA3 is connected to EXTI_Line3 */

   EXTI_InitStruct.EXTI_Line = EXTI_Line3;

   /* Enable interrupt */

   EXTI_InitStruct.EXTI_LineCmd = ENABLE;

   /* Interrupt mode */

   EXTI_InitStruct.EXTI_Mode = EXTI_Mode_Interrupt;

   /* Triggers on rising and falling edge */

   EXTI_InitStruct.EXTI_Trigger = EXTI_Trigger_Rising_Falling;

   /* Add to EXTI */

   EXTI_Init(&EXTI_InitStruct);

   /* Add IRQ vector to NVIC */

   /* PA3 is connected to EXTI_Line3, which has EXTI3_IRQn vector */

   NVIC_InitStruct.NVIC_IRQChannel = EXTI3_IRQn;

   /* Set priority */

   NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0x00;

   /* Set sub priority */

   NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0x01;

   /* Enable interrupt */

   NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;

   /* Add to NVIC */

   NVIC_Init(&NVIC_InitStruct);

}

void EXTI3_IRQHandler(void) {

   /* Make sure that interrupt flag is set */

   if (EXTI_GetITStatus(EXTI_Line3) != RESET) {

       /* Do your stuff when PA3 is changed */

      HAL_GPIO_TogglePin(GPIOB,GPIO_PIN_11);

       /* Clear interrupt flag */

       EXTI_ClearITPendingBit(EXTI_Line3);

   }

}

2 REPLIES 2
dbgarasiya
Senior II

you are missng inerrupt related file and not set path

MAkke
Associate III

It must be something like that all right. But how can it be missing? I did the setup through the GUI, so you'd think it would include all the necessary libraries. I do have an stm32f3xx_it.h and stm32f3xx_it.c, so which file are you referring to? How do I set the path?