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https://designers-guide.org/forum/YaBB.pl Simulators >> Circuit Simulators >> Notice from spectre https://designers-guide.org/forum/YaBB.pl?num=1119915682 Message started by driveforce on Jun 27th, 2005, 4:41pm |
Title: Notice from spectre Post by driveforce on Jun 27th, 2005, 4:41pm dear all, during a 'tran' analysis, one message like the following is shown: ************* Notice from spectre at time = 6.01534 us during transient analysis 'tran'. Maxium value for quantity 'I' has increased to 1.06973 uA (detected at V0:p) Notice from spectre at time = 6.43504 us during transient analysis 'tran'. Maxium value for quantity 'I' has increased to 10.73333 uA (detected at V0:p) Notice from spectre at time = 48455 us during transient analysis 'tran'. Maxium value for quantity 'I' has increased to 110.903 uA (detected at V0:p) ************** ,where V0 is the power supply (DC). What does this kind of notice mean? what is the meaning of "Maxium value for quantity 'I' " ? Thanks, -driveforce |
Title: Re: Notice from spectre Post by Ken Kundert on Jun 28th, 2005, 12:59am The quantity "I" is current. What this message is saying is that the maximum current detected in the circuit is increasing in a suspicious way. If it is okay for the maximum I in your circuit to be > 110uA then then don't worry about the message. I believe this the trigger value for this message is set using a parameter on the quantity statement (see 'spectre -h quantity' for more information. -Ken |
Title: Re: Notice from spectre Post by driveforce on Jun 28th, 2005, 9:24am Ken, Thank you. Since the simulation includes a power on step, the high instantaneous current can be around 110 uA. Best, -driveforce |
Title: Re: Notice from spectre Post by Geoffrey_Coram on Jun 30th, 2005, 5:31am Does it really say "Maxium" (instead of Maximum)? :) Too bad there isn't an easy way to run the text of messages through a spell-checker -- if you run the whole source code, all the oddly-named variables show up. But a quick "grep" could find this typo so it can be corrected. |
Title: Re: Notice from spectre Post by John O Donovan on Jun 30th, 2005, 11:29am Hi, Since simple mistakes like this are somewhat annoying, I checked the message, and it says "Maximum" as far back as the history goes, so it should be fine. :) John |
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