58 lines
1.2 KiB
C++
58 lines
1.2 KiB
C++
/**
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Example of a Arduino interruption and RTOS Task Notification.
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https://www.freertos.org/RTOS_Task_Notification_As_Binary_Semaphore.html
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*/
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// Include Arduino FreeRTOS library
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#include <Arduino_FreeRTOS.h>
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/**
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Declaring a global TaskHandle for the led task.
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*/
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TaskHandle_t taskNotificationHandler;
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void setup() {
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// Create task for FreeRTOS notification
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xTaskCreate(TaskNotification, // Task function
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"Notification", // Task name
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128, // Stack size
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NULL,
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3, // Priority
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&taskNotificationHandler ); // TaskHandle
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}
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void loop() {
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}
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/*
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Notification task.
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*/
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void TaskNotification(void *pvParameters)
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{
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(void) pvParameters;
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int digitalPin = BTN_BUILTIN;
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Serial.begin(9600);
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attachInterrupt(digitalPinToInterrupt(digitalPin), digitalPinInterruptHandler, RISING);
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for (;;) {
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if (ulTaskNotifyTake(pdTRUE, portMAX_DELAY)) {
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Serial.println("Notification received");
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}
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}
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}
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void digitalPinInterruptHandler() {
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BaseType_t xHigherPriorityTaskWoken = pdFALSE;
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vTaskNotifyGiveFromISR(taskNotificationHandler, &xHigherPriorityTaskWoken);
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portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
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}
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