itacool
Newbie
Hello,
I'm trying to run dc and ac simulation for my layout,using Cadence and TSMC65. The output performance are poor, and i'm not sure it's
because a bad design, or simulating problem.
while running the simulation, the following warnings pops on the spectre.out file:
Notice from spectre during topology check.
Only one connection to the following 12 nodes:
I0.42\:I4|net09
I0.net14
I0.net13
I0.net12
I0.net011
Further occurrences of this notice will be suppressed.
No DC path from node `I0.#7cI0|B' to ground, Gmin installed to provide path.
No DC path from node `I0.42\:I4|net09' to ground, Gmin installed to provide path.
The LVS check passing with no errors.
The ac and dc simulation working just fine, and I don't know where to check for further information.
The net "0.42\:I4|net09'" is connected as needed and not floating, so I don't understand the meaning of this warning.
Any suggestions ?
Thanks
I'm trying to run dc and ac simulation for my layout,using Cadence and TSMC65. The output performance are poor, and i'm not sure it's
because a bad design, or simulating problem.
while running the simulation, the following warnings pops on the spectre.out file:
Notice from spectre during topology check.
Only one connection to the following 12 nodes:
I0.42\:I4|net09
I0.net14
I0.net13
I0.net12
I0.net011
Further occurrences of this notice will be suppressed.
No DC path from node `I0.#7cI0|B' to ground, Gmin installed to provide path.
No DC path from node `I0.42\:I4|net09' to ground, Gmin installed to provide path.
The LVS check passing with no errors.
The ac and dc simulation working just fine, and I don't know where to check for further information.
The net "0.42\:I4|net09'" is connected as needed and not floating, so I don't understand the meaning of this warning.
Any suggestions ?
Thanks