EXTI_InitTypeDef and NVIC_InitTypeDef not recognized.
- January 17, 2020
- 2 replies
- 1766 views
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);
}
}