/*
  The original code:
  https://microcontrollerslab.com/use-freertos-arduino/
  Modified by Barbu Vulc!
  January 4th, 2023
*/
//RTOS = Real-time operating system
//FreeRTOS site: https://www.freertos.org/

//FreeRTOS library:
#include <Arduino_FreeRTOS.h>


// Use only core 1 for demo purposes
#if CONFIG_FREERTOS_UNICORE
static const BaseType_t app_cpu = 0;
#else
static const BaseType_t app_cpu = 1;
#endif

// Pins
static const int led_pin = LED_BUILTIN;

// Our task: blink an LED
void toggleLED(void *parameter) {
  while(1) {
    digitalWrite(led_pin, HIGH);
    vTaskDelay(500 / portTICK_PERIOD_MS);
    digitalWrite(led_pin, LOW);
    vTaskDelay(500 / portTICK_PERIOD_MS);
  }
}

void setup() {

  // Configure pin
  pinMode(led_pin, OUTPUT);

  // Task to run forever
  xTaskCreate(  // Use xTaskCreate() in vanilla FreeRTOS
              toggleLED,    // Function to be called
              "Toggle LED", // Name of task
              1024,         // Stack size (bytes in ESP32, words in FreeRTOS)
              NULL,         // Parameter to pass to function
              1,            // Task priority (0 to configMAX_PRIORITIES - 1)
              NULL);         // Task handle
//              app_cpu);     // Run on one core for demo purposes (ESP32 only)

  // If this was vanilla FreeRTOS, you'd want to call vTaskStartScheduler() in
  // main after setting up your tasks.
}

void loop() {
  // Do nothing
  
  // setup() and loop() run in their own task with priority 1 in core 1
  // on ESP32
}