( https://i.stack.imgur.com/Hv5IT.png )
( https://i.stack.imgur.com/KsADj.png )
没有代码做同样的事情
if
(OSIntNestingCtr == 1) { (5)
OSTCBCurPtr->StkPtr = Current task's CPU stack pointer register
value;
}
在 µC/OS-III ISR 中没有必要吗?