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66AK2H14: Problem with loading IBIS model

Madhu Sharma
Expert 2915 points
Part Number: 66AK2H14

Hi,

I am getting below mentioned error message while loading IBIS model of 66AK2H14 device in Hyperlynx tool: 

C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3L_48: Rising Waveform [1] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3L_48: Rising Waveform [2] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3L_48: Falling Waveform [1] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3L_48: Falling Waveform [2] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3L_40: Rising Waveform [1] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3L_40: Rising Waveform [2] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3L_40: Falling Waveform [1] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3L_40: Falling Waveform [2] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3L_34: Rising Waveform [1] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3L_34: Rising Waveform [2] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3L_34: Falling Waveform [1] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3L_34: Falling Waveform [2] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3_48: Rising Waveform [1] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3_48: Rising Waveform [2] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3_48: Falling Waveform [1] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3_48: Falling Waveform [2] and its Composite Current don't have identical time points
C:\MentorGraphics\9.5PADS\SDD_HOME\hyperlynx\Libs\66ak2h14_r1p4_madhu.ibs: Model PDIFF_D3FF3_40: Rising Waveform [1] and its Composite Current don't have identical time points

... and so on.

Please help me to resolve this issue.

Thanks & Regards,

Madhu

  • 0
    TI__Guru 65405 points
    Hi Madhu,

    I've forwarded your query to the software team. Their feedback should be posted here.

    BR
    Tsvetolin Shulev
  • 0
    TI__Mastermind 42545 points

    Hi Madhu,

    This was reported and an error in earlier versions of the IBIS checker for ver5 but later versions removed this check. It was reported as follows on the IBIS forums.

    "It is not critical for EDA tools to use these data if given enough points for interpolation. There are few simulators that support this feature now (currently they remove these errors in the parser messages).

    These error messages should be downgraded to NOTE."

    Subsequently, this was changed to a Note in the v5.0.7 of the IBISCHK and removed completely from the v5.1.4 of IBISCHK that we used to check the model. Is your version of hyperlynx using the latest version of the IBIS specification?  You should check with your hyperlynx representative to see why it is reporting this as an error.

    Regards,

    Bill