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*E,OBJACC: Object must have write access: <object name>

prkroon

I am new to the forum so I do not know if the subject I post in this forum is the correct place.

Anyway, During simulation in ncsim I want to force an internal digital signal in the mixed signal design to a certain binairy value.

The signal in question is generated in vhdl and in my opinion a normal digital signal output.

However when I force it during simulation I get the following message:

*E,OBJACC: Object must have write access: <object name>

The <object name> is the signal/pin I force.

I searched in the online ncsim/simvision manuals and cadence site but sofar I could not find the cause of the error message.

So the question is why I can't force this digital signal, other signals in the design I can but some I can not giving me the discussed error message.

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  • prkroon

    TAM1,

    Thanks for the quick response.

    I added -access+rwc to the ncelab cmd and after elaboration I could now force the node(s) in question.

    Sofar I had no problems with forcing digital signals but probably the design I am simulated is optimized by ncelab.

    Can I see in the log files that optimisation was executed or not (sofar did not noticed it)?

     

Reply
  • prkroon

    TAM1,

    Thanks for the quick response.

    I added -access+rwc to the ncelab cmd and after elaboration I could now force the node(s) in question.

    Sofar I had no problems with forcing digital signals but probably the design I am simulated is optimized by ncelab.

    Can I see in the log files that optimisation was executed or not (sofar did not noticed it)?

     

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