发表于:2002-09-30 17:18:00
4楼
W_8454_Write_Counter(5, 3, 2);<--
W_8454_Write_Counter(1, 2, 65535);<---
W_8454_Write_Counter(6, 0, 65535);<--
Sleep(1000);
W_8454_Read_Counter( 1 , &mode , &newvalue )
period = (float) (65535 - newvalue ); frequency = period * 500000 / 65535 ;
<--- 能否解释一下?