LTspice question: What happened to the ammerter?

Discussion in 'Electronics Resources' started by DickCappels, Aug 22, 2016.

  1. DickCappels

    Thread Starter Moderator

    Aug 21, 2008
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    After running a simulation in LTspcie I tried to measure the current thought some resistors, but the ammeter did not appear as the cursor hovered over the parts. "Ok, no problem" I thought, and reinstalled LTspice. Voilà! The ammeter was back. I shut down the computer.

    Upon restarting the computer and running a simulation the ammeter failed to appear. Is there a secret setting that I have been missing all these years?
     
  2. ericgibbs

    Senior Member

    Jan 29, 2010
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    hi Dick,
    I have never observed that problem.
    Could you post your 'asc' file and I will see if I can duplicate the problem.
    E
    EDIT:
    Try holding down the ALT key, while clicking on the component or wire.
     
  3. DickCappels

    Thread Starter Moderator

    Aug 21, 2008
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    There is the file. The ammeter appears when I run it on the Mac OS but not on XP.

    Holding down the ALT key did not help.
     
  4. Hypatia's Protege

    Distinguished Member

    Mar 1, 2015
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    FWIW I've occasionally experienced the described difficulty while running LtSpice under XP Pro but not on Win7 Ultimate -- On a possibly related note, I have been unable to stipulate ammeter 'polarity' following installation of LtSpice upates Ca. 1 year ago:confused:...

    Best regards
    HP
     
  5. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,773
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    Cursor becomes ammeter/thermometer icon ok here with your .asc file. Win10, latest LTS.
     
  6. ericgibbs

    Senior Member

    Jan 29, 2010
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    Same here, works OK.
    Using Win XP Pro.
    Latest LTS.
     
  7. DickCappels

    Thread Starter Moderator

    Aug 21, 2008
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    This is embarrassing as well as dumb. I introduced the problem when trying to get the program to stop leaving all of the intermediate files. I had unchecked "Save Device Currents" in the Save Options tab of the Control Panel. I was sure there was some switch, but didn't recognize it until all of you reported no problem.

    Yes, I found the correct place to delete the intermediate files too.

    Thank you for your feedback and help.
     
  8. Hypatia's Protege

    Distinguished Member

    Mar 1, 2015
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    I dunno - It has been my experience that the described difficulty (along with several other 'simulation time' annoyances) occur randomly under XP (as of installation of an LtSpice update last autumn) Note that I have never encountered said difficulty under Win7 --- FWIW I put it down to the commonplace (if indolent) practice by developers of ignoring 'orphaned' OSes despite continued widespread use of same:rolleyes:

    Well hey! Pleased it's working for you!:cool:

    Best regards
    HP:)
     
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