#include <Arduino_FreeRTOS.h> //iniatilize the headerfile as freertos
#include "queue.h"//iniatilize the queue header file

QueueHandle_t xStringQueue;//initilize the string queue
int timer1_counter ;
void setup()
{
Serial.begin(9600);
//create Api for sting
  xTaskCreate(vStringPrinter," String Printer", 100, NULL, 1,NULL);
  //create Queue for string with size of the queue and stored in the handler variable here
  xStringQueue  = xQueueCreate(6,sizeof(char *));
  //iniatilize the interrupt here
  InterruptInit();
}
//main function stringprinter with void pointer
void vStringPrinter(void *pvParameters)
{
  char *pcString;//declaring the string return type
  //iniatilize the while with infinity loop
  while(1)
  {
    //here we receive the string queue in the arguments handler variable,string return type,delay.
    xQueueReceive(xStringQueue,&pcString,portMAX_DELAY);
    Serial.println(pcString);// print the string in output console of wokwi simulator
  }
}
//read and write the queue using interrupt service routine
ISR(TIMER1_OVF_vect)//enabling the timer 1 for interrupt hanndling with overflow flag
{
  TCNT1 = timer1_counter;//iniatilize timer1 counter and return the value to TCNT1
  uint32_t receivedNumber;
  //defining the array of the string.
  static const char *pcStrings[]=
  {
    "Hello\r\n",
    "Hi\r\n",
    "I\r\n",
    "am\r\n",
    "GIRI\r\n",
    "here\r\n",
     
  }; 
  //send the string from ISR with aruguments of handler variable,address of the index,pdfalse is not a null it send more string back
  xQueueSendToBackFromISR(xStringQueue,&pcStrings[4],pdFALSE);
  }
void loop(){}
void InterruptInit()
{
  //here interrupt is 0
  noInterrupts();
  //Timer counter control register 1 have 16bit register 
  TCCR1A =0;
  TCCR1B =0;
  timer1_counter =34286 ;
  TCNT1 = timer1_counter;//TCNT1=34286
  TCCR1B |=(1<<CS12);// here i declare the prescaler value
 //timer counter1 interrupt masking register
  TIMSK1 |= (1 << TOIE1); //enabling interrupt of TIFR
  interrupts(); 
}