第一次用orcad来仿真，就是用的LM555当作多谐振的振荡器发出脉冲信号，问题是提示说LM555没定义
代码：****INCLUDINGSCHEMATIC1.net*****sourceLMR_R1N003895V3.9kR_R2N00389N002233k****RESU...
代码：**** INCLUDING SCHEMATIC1.net ****
* source LM
R_R1 N00389 5V 3.9k
R_R2 N00389 N00223 3k
**** RESUMING lm555.cir ****
.END
ERROR -- Less than 2 connections at node 5V
ERROR -- Less than 2 connections at node N00223
ERROR -- Node N00389 is floating
ERROR -- Node 5V is floating
ERROR -- Node N00223 is floating 展开
* source LM
R_R1 N00389 5V 3.9k
R_R2 N00389 N00223 3k
**** RESUMING lm555.cir ****
.END
ERROR -- Less than 2 connections at node 5V
ERROR -- Less than 2 connections at node N00223
ERROR -- Node N00389 is floating
ERROR -- Node 5V is floating
ERROR -- Node N00223 is floating 展开
展开全部
什么东西。。。。
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