ker.htm

来自「ST20 Embedded Toolset R2.0.5用于开发基于ST20芯片」· HTM 代码 · 共 78 行

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<title>3 Kernel</title>

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<h1>
  <a name="1204411"> </a><font color="#003366"  face="Verdana, Arial, Helvetica, sans-serif">3	 Kernel</font>
</h1><hr>


<p>
  <a name="1204415"> </a><font size=2  face="Verdana, Arial, Helvetica, sans-serif">To implement multi-priority scheduling, OS20 uses a small scheduling kernel. This is a piece of code which makes scheduling decisions based on the priority of the tasks in the system. It is the kernel's responsibility to ensure that it is always the task which has the highest scheduling priority that is the one which is currently running.</font>
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<p>
  <a name="1204419"> </a><font size=2  face="Verdana, Arial, Helvetica, sans-serif">The toolset is supplied with two prebuilt OS20 kernel libraries: the deployment kernel and debug kernel. The debug kernel is provided to support debugging. Currently the only difference between the two kernels is that the debug kernel has an additional time logging facility. Apart from specific references to the "debug kernel", the term "kernel" when used in this chapter applies to either kernel.</font>
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