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update 说明文档/CosyOS原理与应用.md.

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Signed-off-by: 零中断延迟的RTOS <cosyos@139.com>
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零中断延迟的RTOS
2024-01-06 15:58:27 +00:00
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commit 0df962addd
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说明文档/CosyOS原理与应用.md
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@@ -418,17 +418,17 @@ CosyOS的临界区可分为 **任务临界区**、**服务层临界区**、**全
下面，简单对比一下MCU、FreeRTOS、CosyOS，三者之间“定时服务”的区别：<br>
* **MCU** <br>
--------调用 <br>
-----------调用 <br>
中断响应 ——> 定时器中断服务程序 <br>
* **FreeRTOS** <br>
--------调用 <br>
-----------调用 <br>
守护任务 ——> 定时器回调函数 <br>
* **CosyOS** <br>
--------调用 <br>
-----------调用 <br>
系统滴答 ——> 定时中断/查询钩子 <br>
--------恢复 <br>
-----------恢复 <br>
系统滴答 ——> 定时中断/查询任务 <br>
FreeRTOS是在守护任务中统一调用所有的定时器回调函数，所有“定时服务”都具有相同的优先级，即守护任务的优先级。<br>