At last, in the section of software design, startup code programming, operating system choosing and transplanting, task design, drivers design and interrupt service routine design had been discussed.

最后，在软件设计部分探讨了启动代码编写、操作系统的选择和移植、任务规划和设计、驱动程序设计以及中断服务程序设计。

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At last, in the section of software design, startup code programming, operating system choosing and transplanting, task design, drivers design and interrupt service routine design had been discussed.

最后，在软件设计部分探讨了启动代码编写、操作系统的选择和移植、任务规划和设计、驱动程序设计以及中断服务程序设计。

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