# RT-thread-nano Hello World

## Overview

The example shows RT-thread kernel task scheduling function.This case creates 8 threads and a timer which executes the print status task every cycle. Thread 1 sends messages to the event queue, and thread 0 receives messages from the event queue. Threads 2 and 3 use mailbox for communication. Threads 4 and 5 obtain the same semaphore for synchronization, and the difference in corresponding counts is within 1. Thread 6 continuously applies for memory from memory pool, while thread 7 releases the requested memory.

This case uses MSH as the console, where you can type "help" in the terminal to obtain registered commands for testing and control.

## Board Setting

No special settings are required

## Running the example

When the example runs successfully, following message is displayed in the terminal:
```console
       rtthread basic function demo
----------------------------------------
    thread0 event receive:        499
    thread1 event send:           499
    thread2 mbox receive:         8
    thread3 mbox send:            8
    thread4 semphore task 1:      88
    thread5 semphore task 2:      88
    thread6 malloc:               2016
    thread7 free:                 2016
----------------------------------------

       rtthread basic function demo
----------------------------------------
    thread0 event receive:        1499
    thread1 event send:           1499
    thread2 mbox receive:         58
    thread3 mbox send:            58
    thread4 semphore task 1:      472
    thread5 semphore task 2:      472
    thread6 malloc:               26016
    thread7 free:                 26016
----------------------------------------
```