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2P2Z环的输出,即CNTL_2P2Z_Out1 = &Period;这句话,2P2Z会自动把运算结果放到Preiod地址中,PWMDRV_LLC_ComplPairDB_Period1 = &Period;, PWMDRV_LLC_1ch_UpCntDB 3在汇编中执行后,就把值更新到周期寄存器中了。