The code I wrote for the B-L072Z-LRWAN1 is supposed to count pulses on a falling-edge external interrupt pin. The pulse source is an Arduino which toggles its GPIO on and off every 5ms, for a 10ms pulse period.
编译并下载代码到你的STM32开发板,然后断开PA0引脚以触发中断。你应该会看到LED2和LED3轮流闪烁三次。 这样,我们就实现了使用EXTI中断和HAL库控制LED2和LED3在PA0断开时轮流闪烁三次的功能。
NVIC_InitStructure.NVIC_IRQChannel =EXTI2_IRQn;仔细看，是EXTI2_IRQn，你的少个n。
NVIC_InitTypeDef NVIC_InitStructure; NVIC_InitStructure.NVIC_IRQChannel=EXTI15_10_IRQn; NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=1; NVIC_InitStructure.NVIC_IRQChannelSubPriority=1; NVIC_Init(&NVIC_InitStructure); } uint16_t CountSensor_Get(void) {...
道(如EXTI0_IRQn等)、抢占式优先级、响应优先级、使能或失能中断等。通过该函数可对每个中 断源进行详细的优先级和使能等设置。 • 代码示例: #include "stm32f10x.h" int main(void) { NVIC_InitTypeDef NVIC_InitStructure; // 配置中断优先级分组 NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2...
HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);uart[_COM3].active = false;} void setUca3RxToRx(void){ GP...
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) *//* USER CODE END 6 */}#endif/* USE_FULL_ASSERT *///stm32wlxx_it.c:voidEXTI9_5_IRQHandler(void){/* USER CODE BEGIN EXTI9_5_IRQn 0 *//* USER CODE END EXTI9_5_IRQn 0 */if(LL_EXTI_IsActiveFl...
NVIC_InitStructure.NVIC_IRQChannel = EXTI3_IRQn; //配置为外部中断3中断 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; //先占优先级为1 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2; //从优先级为2 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //使能中断通道 ...
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);// 进入STOP2模式 HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR...
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) *//* USER CODE END 6 */}#endif/* USE_FULL_ASSERT *///stm32wlxx_it.c:voidEXTI9_5_IRQHandler(void){/* USER CODE BEGIN EXTI9_5_IRQn 0 *//* USER CODE END EXTI9_5_IRQn 0 */if(LL_EXTI_IsActiveFl...