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8 years, 6 months ago.
STM32 nucleo EXTI interrupt, after signal nucleo stop
with this easy code i make signal to PA0 to enable EXTI interrupt and set count1 to 0
after interrupt nucleo stop loop cycle !
where is my error?
link https://developer.mbed.org/users/c128/code/interrupt_test_stm32_nucle/
https://developer.mbed.org/users/c128/code/interrupt_test_stm32_nucle/file/c5e2a50f0d5d/main.cpp
include the mbed library with this snippet
#include "mbed.h"
#include "stm32f4xx.h"
#include "stm32f4xx_hal_tim_ex.h"
#include "stm32f4xx_hal_conf.h"
int16_t count1 = 10;
void EXTI0_IRQHandler(void)
{
HAL_NVIC_ClearPendingIRQ(EXTI0_IRQn);
HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_0);
}
void HAL_GPIO_EXTI_Callback (uint16_t GPIO_Pin)
{
if (GPIO_Pin == GPIO_PIN_0) {
count1 = 0;
}
}
int main()
{
HAL_Init();
GPIO_InitTypeDef GPIO_InitStruct;
__GPIOA_CLK_ENABLE();
GPIO_InitStruct.Pin = GPIO_PIN_0; //PA0 as interrupt test
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
HAL_NVIC_SetPriority(EXTI0_IRQn, 0, 1);
HAL_NVIC_EnableIRQ(EXTI0_IRQn);
while (1) {
printf("loop%d\r\n", count1);
wait(1);
}
}
3 Answers
6 years, 7 months ago.
This is not mbed code, just pure STM32 HAL. Check mbed's interrupt in API here: https://docs.mbed.com/docs/mbed-os-api-reference/en/latest/APIs/io/InterruptIn/
6 years, 7 months ago.
Hi
If you want to use pure STM32 HAL in mbed, please see GPIO EXTI example available in STM32CubeF7 package.
BTW why don't you use mbed api for this ?