23.4.1. RT-thread-nano Hello World
23.4.1.1. 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.
23.4.1.2. Board Setting
No special settings are required
23.4.1.3. Running the example
When the example runs successfully, following message is displayed in the terminal:
rtthread basic function demo
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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
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rtthread basic function demo
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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
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