说明: μC/OS-II, The Real-Time Kernel Semaphores (OS_SEM.C) INT16U OSSemAccept (OS_EVENT *pevent); OS_EVENT *OSSemCreate (INT16U cnt); OS_EVENT *OSSemDel (OS_EVENT *pevent, INT8U opt, INT8U *perr); OS_DEL_NO_PENDOS_DEL_ALWAYS void OSSemPend (OS_EVENT *peve
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