1746-OBP16/1746-OBP16 ab：李
               
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1746-OBP16/1746-OBP16 ab

堆栈的初始化与任务的创建

　　堆栈的初始化实际是初始化0STaskStackBotton数组，并将当前任务为空闲任务，下一个运行任务为zui高优先级任务，即优先级为零的任务。初始化时，将SP的值存人OSTaslkStackBotton［O］，SP+2的值存入OSTaskStacKBotton［1］，依此类推。而任务是调用0STa-skCreate函数建立的。实际上只是将任务（假设为n号任务）的地址填人到对应OSTaskStackBotton［n］所指向的位置，并将SP向后移动2个字节，如图2所示。

　　为什么要以这样一种规律而不是其他的方式呢？这是由于在任务建立后，还未进行任务调度之前，各任务的堆栈实际上是它们自身的地址，因而其堆栈深度为2，为了程序的简便而直接填入。

1746-OBP16/1746-OBP16 ab

VACIII OKUMA SPINDLE DRIVE UNIT D11 Reparatur Service

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MODICON AS-584A-032 PLC MODULE 584A032 _

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SIEMENS 6DS3421-1BA21-2?BA2 DATENSICHTSTATI?ON DS 075G

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SIEMENS 6RA 2625-6D V51-1A or 6RA2625-6DV51-1?A SIMOREG

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