CC1310- TI RTOS 相关困惑，请理解TI RTOS工作的朋友帮解惑？？！！

// Initialize client state & variablesmemset(&pObj->state, 0, sizeof(pObj->state));// Initialize client semaphore and clock objectunion {Semaphore_Params sp;Clock_Params cp;} paramsUnion;Semaphore_Params_init(&paramsUnion.sp);paramsUnion.sp.mode = Semaphore_Mode_BINARY;Semaphore_construct(&pObj->state.semSync, 0, &paramsUnion.sp);Clock_Params_init(&paramsUnion.cp);paramsUnion.cp.arg = (UArg)pObj;Clock_construct(&pObj->state.clkInactivity, (Clock_FuncPtr)clkInactivityFxn, 0, &paramsUnion.cp);

WH HUANG：

CC1310 例程中 RF_open() 里有这段，有几个里方让我困惑：1. pObj->state 被清成0，，Clock_construct(&pObj->state.clkInactivity, (Clock_FuncPtr)clkInactivityFxn, 0, &paramsUnion.cp);？ 这里的 &pObj->state.clkInactivity, == NULL ??2. // Initialize client semaphore and clock object union { Semaphore_Params sp; Clock_Params cp; } paramsUnion;联合？ 两类变量；还有 变量在函数里定义了，并初始化了，但是退出去不是又变不可见了。。。。