Is it possible to run Arduino Code developed for Adafruit nRF52 Bluefruit on nRF52840 DK?

[KKaushik]

I have been trying to run and flash code in nRF52840 DK. But from Arduino IDE it keeps failing.

Below attached some reference images. for Arduino IDE Settings:

Here is the code I'm trying to flash.

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/*

Blink

Turns on an LED on for one second, then off for one second, repeatedly.

Most Arduinos have an on-board LED you can control. On the UNO, MEGA and ZERO

it is attached to digital pin 13, on MKR1000 on pin 6. LED_BUILTIN takes care

of use the correct LED pin whatever is the board used.

If you want to know what pin the on-board LED is conn

ected to on your Arduino model, check

the Technical Specs of your board at https://www.arduino.cc/en/Main/Products

This example code is in the public domain.

modified 8 May 2014

by Scott Fitzgerald

modified 2 Sep 2016

by Arturo Guadalupi

*/

#include <Arduino.h>

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

/*
  Blink
  Turns on an LED on for one second, then off for one second, repeatedly.

  Most Arduinos have an on-board LED you can control. On the UNO, MEGA and ZERO 
  it is attached to digital pin 13, on MKR1000 on pin 6. LED_BUILTIN takes care 
  of use the correct LED pin whatever is the board used.
  If you want to know what pin the on-board LED is conn
  ected to on your Arduino model, check
  the Technical Specs of your board  at https://www.arduino.cc/en/Main/Products
  
  This example code is in the public domain.

  modified 8 May 2014
  by Scott Fitzgerald
  
  modified 2 Sep 2016
  by Arturo Guadalupi
*/

#include <Arduino.h>
#include <Adafruit_TinyUSB.h> // for Serial

#define LED_BUILTIN PIN_LED2
// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
}
     
// the loop function runs over and over again forever
void loop() {
  digitalToggle(LED_BUILTIN); // turn the LED on (HIGH is the voltage level)
  delay(1000);                // wait for a second
}

Is there a way that I can resolve this?