本帖最后由 李富贵 于 2011-11-6 15:10 编辑
这个移植有问题，os_core.c里面OSIntExit ()和OSSched()两个函数中：
-
- if (OSRunning == OS_TRUE) {
- OS_ENTER_CRITICAL();
- if (OSIntNesting > 0) { /* Prevent OSIntNesting from wrapping */
- OSIntNesting--;
- }
- if (OSIntNesting == 0) { /* Reschedule only if all ISRs complete ... */
- if (OSLockNesting == 0) { /* ... and not locked. */
- OS_SchedNew();
- if (OSPrioHighRdy != OSPrioCur) { /* No Ctx Sw if current task is highest rdy */
- OSTCBHighRdy = OSTCBPrioTbl[OSPrioHighRdy];
- #if OS_TASK_PROFILE_EN > 0
- OSTCBHighRdy->OSTCBCtxSwCtr++; /* Inc. # of context switches to this task */
- #endif
- OSCtxSwCtr++; /* Keep track of the number of ctx switches */
- OSIntCtxSw(); /* Perform interrupt level ctx switch */
- }
- }
- }
- OS_EXIT_CRITICAL();
- }
应该改为：
-
- OS_ENTER_CRITICAL();
- if (OSIntNesting == 0u) { /* Schedule only if all ISRs done and ... */
- if (OSLockNesting == 0u) { /* ... scheduler is not locked */
- OS_SchedNew();
- OSTCBHighRdy = OSTCBPrioTbl[OSPrioHighRdy];
- if (OSPrioHighRdy != OSPrioCur) { /* No Ctx Sw if current task is highest rdy */
- #if OS_TASK_PROFILE_EN > 0u
- OSTCBHighRdy->OSTCBCtxSwCtr++; /* Inc. # of context switches to this task */
- #endif
- OSCtxSwCtr++; /* Increment context switch counter */
- OS_TASK_SW(); /* Perform a context switch */
- }
- }
- }
- OS_EXIT_CRITICAL();
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