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Floating node using spectre option (Read 249 times)
Gp
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Floating node using spectre option
Jul 30th, 2018, 5:31am
 
Hello All,

How can I found floating node in design using spectre option?

Another question is, any difference between the floating and dangling node?


Thanks.
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Geoffrey_Coram
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Re: Floating node using spectre option
Reply #1 - Aug 1st, 2018, 7:14am
 
A dangling node usually means there's only one connection (but it's a resistive path). If you had

r1 dangle 0 50

then "dangle" is dangling, but not floating.

If you had

c1 dangle 0 1p

or if you have

c1 float 0 1p
c2 float 0 2p

then these nodes are both floating -- no dc path to ground. But "float" has two connections, so it's not considered dangling.
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