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  3. Characterization of Full adder that use transmission gates...

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Characterization of Full adder that use transmission gates using liberate

TM20240913386
TM20240913386 9 months ago

Hello,
I'm trying to characterize a full adder that use transmission gate.
Unfortunately, the power calculation are wrong for the cell are always negative.
Is there any method or commands that can can help in power calculation or add the power consumption by the input pins to the power calculation ?
Another question, Is liberate support the characterization or transmission gate cells as standard cells or I should use liberate AMS for these type of cells ?
Thanks in advance,
Tareq 

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  • TM20240913386
    TM20240913386 9 months ago

    When I tried to use -harness option, I faced this error for all of the inputs and outputs for Full adder.
    *Error* Hash name "A" is already in use indicating internal inconsistencies; some entries for altered circuit will be ignored...
    It caused also other errors.
    ERROR (LIB-206): Thread number '9' reported simulation errors for arc: 'cell:'HFA', r_pin:'A', r_pin dir:'r', pin:'Cout', pin dir:'r', type:'combinational rise_transition' when: B&!Cin, vector:'RxxRx', svec: 01010101' during 'simulation'.
    ERROR (LIB-6119): (char_library): Nov  7 11:51:13 Thread 9: cell:'HFA', r_pin:'A', r_pin dir:'r', pin:'Cout', pin dir:'r', type:'combinational rise_transition' when: B&!Cin, vector:'RxxRx' simulation FAILED (completion 1%) with error message: ERROR (CMI-2194): VA: Waveform type must be specified if any waveform parameters are given.

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