微波EDA网,见证研发工程师的成长!
首页 > 研发问答 > PCB设计问答 > Cadence Allegro > 这个层次原理图为啥总报错呢?

这个层次原理图为啥总报错呢?

时间:10-02 整理:3721RD 点击:
尝试画个层次原理图,很简单,就几个电阻一连,可是画完了DRC的时候总是报错:
Checking Misleading Tap connection
ERROR [DRC0039]   Tap may not be connected with the bus Check Entire net. DD1:  SCHEMATIC1, top  (3.55, 2.30)
ERROR [DRC0039]   Tap may not be connected with the bus Check Entire net. DD2:  SCHEMATIC1, top  (3.55, 2.30)
ERROR [DRC0039]   Tap may not be connected with the bus Check Entire net. DD3:  SCHEMATIC1, top  (3.55, 2.30)
ERROR [DRC0039]   Tap may not be connected with the bus Check Entire net. DD4:  SCHEMATIC1, top  (3.55, 2.30)
hierarchical pin name D[1..4],
bus name DD[1..4],
net alias 分别为DD1,DD2,DD3,DD4。
问题出在哪呢?如果把根图上的bus name 去掉,就又报警了,
Check Bus width mismatch
N06946 has not connected with proper width
WARNING [DRC0030]   Bus width is not matching with the port Width block1,DD[1..4]:  SCHEMATIC1, top  (2.45, 2.30)
N06946 has not connected with proper width
WARNING [DRC0030]   Bus width is not matching with the port Width block2,DD[1..4]:  SCHEMATIC1, top  (3.55, 2.30)


Copyright © 2017-2020 微波EDA网 版权所有

网站地图

Top