请教各位大神，HalfPerMax并未在PWM_INIT_MACRO出现，为何要标注出来？？？
pwm1.PeriodMax = SYSTEM_FREQUENCY*1000000*T/2; // Prescaler X1 (T1), ISR period = T x 1
pwm1.HalfPerMax=pwm1.PeriodMax/2;
pwm1.Deadband = 2.0*SYSTEM_FREQUENCY; // 120 counts -> 2.0 usec for TBCLK = SYSCLK/1
PWM_INIT_MACRO(1,2,3,pwm1)
