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一、程序跳越的实现(一)原有的问题原 KD—5电路有八个程序,每一个程序的时间选择手柄虽都可以放在“0”周期,但如果真的放在“0”周期则不仅该程序的时间不为零,即不能跳越该程序而进入下一程序,反而使该程序的时间延长到计数器所能计数的最长时间:即100周期。不能实现程序跳越的原因可用实现程序转换有关电路的方框图来说明(图1)。当轮到的程序达到规定的时间,相应的时间选择手柄二个输出端同时出现负电位,于是相应的“负
First, the program to achieve the jump (A) of the original problem The original KD-5 circuit has eight programs, each program can choose the time to handle the “0” cycle, but if really on the “0” Period not only the program time is not zero, that is, can not skip the program and enter the next program, but to make the program extended to the counter can count the longest time: that is, 100 cycles. Can not achieve the reason that the procedure jumps can realize the program changes the circuit block diagram to explain (Fig. 1). When the turn of the program to achieve the specified time, the corresponding time to select the two outputs of the handle at the same time negative potential, so the corresponding "negative