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================================================================================
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样例使用说明
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Sample Description
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================================================================================
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功能描述：
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此样例演示了FreeRTOS队列集的相关API函数应用，实现队列的入队和出队，信号量释放和
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获取。通过打印log，观察出队/入队和释放/获取实现过程。
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Function descriptions:
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This sample demonstrates the application of FreeRTOS queue set related API
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functions to implement queue in and queue out, semaphore release and fetch.
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Observe the queue-out/queue-in and release/acquire implementations by printing
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a log.
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================================================================================
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测试环境：
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测试用板：PY32F403_STK
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MDK版本：5.28
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IAR版本：9.20
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GCC版本：GNU Arm Embedded Toolchain 10.3-2021.10
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Test environment:
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Test board: PY32F403_STK
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MDK Version: 5.28
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IAR Version: 9.20
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GCC Version: GNU Arm Embedded Toolchain 10.3-2021.10
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================================================================================
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使用步骤：
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1. 编译下载程序到MCU，并运行；
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2. 通过串口调试助手打印的log信息，观察任务执行过程。
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Task1: 任务执行1s后向队列发送一个值。任务执行2s后释放一个信号量，计时清零，并
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重复这两个步骤。
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Task2: 从队列集中获取任务句柄，任务句柄为队列句柄，打印队列中存放的数值。任务
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句柄是信号量句柄，打印“Take semaphore succuss!”信息。
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Example execution steps:
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1. Compile and download the program to the MCU and run it;
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2. You can use the log information printed by the serial debugging assistant to
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observe the task execution process.
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Task1: Sends a value to the queue after the task is executed for 1s. Release
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a semaphore after the task is executed for 2s, time clear, and repeat
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these two steps.
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Task2: Obtains the task handle from the queue set. The task handle is the queue
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handle and prints the value stored in the queue. The task handle is a
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semaphore handle that prints "Take semaphore succuss!" Message.
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================================================================================
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注意事项：
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STK板与USB转TTL模块的连线方式如下：
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STK板 USB转TTL模块
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PA02(TX) --> RX
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PA03(RX) --> TX
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GND --> GND
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波特率: 115200bps
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Notes:
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The STK board is wired to the USB to TTL module as follows:
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STK board USB to TTL module
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PA02(TX) --> RX
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PA03(RX) --> TX
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GND --> GND
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Baud rate: 115200bps
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================================================================================
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