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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IWDG看门狗功能，配置看门狗重载计数值，计数800ms后复位，然后通过调整
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每次喂狗的时间（main函数while循环中代码），可以观察到，如果每次喂狗时间750ms，程
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序能一直正常运行（LED灯闪烁），如果喂狗时间850ms，程序会一直复位（LED灯熄灭）。
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Function descriptions:
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This example demonstrates the function of IWDG (Independent Watchdog).Set IWDG
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to count 800ms and then reset.By adjusting the time of refresh the dog
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each time (code in the main function while loop), it can be observed that if the
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time is 750ms, the program can always run normally (LED blink), if the time is
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850ms, the program will always reset (LED off).
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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. 可观察到LED能正常闪烁；
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3. 修改程序（main函数while循环中注释代码），配置喂狗时间为850ms；
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4. 重新编译下载程序到MCU，并运行；
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5. 可观察到LED不能正常亮起。
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Example execution steps:
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1. Compile and download the program to the MCU, and then run it.
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2. Observe the LED blinking
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3. Modify the program (at the commented code in the main loop) to set the
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feeding time to 850 milliseconds.
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4. Re-compile and download the program to the MCU, and then run it.
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5. Observe the LED off.
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================================================================================
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注意事项：
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Notes:
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================================================================================ |