NanDigits Design Automation

Create Waveform Restore File.

• GOF can save Waveform Restore File for waveform viewer tool to restore some signals on waveform display window.
• Current tools supported are Verdi(nWave) and GTKWave.
• Setup method: GofViewer->Options->'Dump Waveform Restore File'

• A window pops up for Waveform resstore setup.
• You can choose to dump Veridi Restore File or GTKWave Traces File.
• In the 'Path Prefix' entry, fill in prefix needed to be added at the beginning of singal.
• The signal path in GOF can be different from the signal path in waveform file by this prefix.
• For example, the signal "strbltcmd" in GOF has name as "top.testop.strbltcmd" in the waveform file.
• Fill in file name in 'Waveform Restgore File' entry.

• Mouse click on the wire you want to save. The wire is highlited which means it is selected.
• Press 'Ctrl' key, and mouse click on other nets to select more.
• Mouse-right-click to pop up menu. Select 'Write selected to the Waveform Restore File'.

• Restore File is created, the following is GTKWave Traces File format.

<?XML version "1.0"?>
<!-- GTKWAVE saved traces, create by GOF
<!-- at Mon Sep 11 17:47:57 2006

<config>

  <traces>
  <trace name=" WRAP.u_TM_qcifff_xneg" mode="bin" rjustified="yes" selected="yes">
   <signal name=" WRAP.u_TM_qcifff_xneg"/>
  </trace>
  <trace name=" WRAP.u_TM_qcifff_qcifpack" mode="bin" rjustified="yes" selected="yes">
   <signal name=" WRAP.u_TM_qcifff_qcifpack"/>
  </trace>
  <trace name=" WRAP.u_TM_qcifqcif_rd_from_qcifshf" mode="bin" rjustified="yes" selected="yes">
   <signal name=" WRAP.u_TM_qcifqcif_rd_from_qcifshf"/>
  </trace>
  <trace name=" WRAP.u_TM_qcifgglt_mode" mode="bin" rjustified="yes" selected="yes">
   <signal name=" WRAP.u_TM_qcifgglt_mode"/>
  </trace>
 </traces>
</config>
 

The following is Verdi Restore File format.

addSignal -h 15 WRAP/u_TM_qcifff_xneg
addSignal -h 15 WRAP/u_TM_qcifff_qcifpack
addSignal -h 15 WRAP/u_TM_qcifqcif_rd_from_qcifshf
addSignal -h 15 WRAP/u_TM_qcifgglt_mode

• In the corresponding waveform display tool, select Restore Waveform option, and pick the file you just generated.
• The signals you have interest will be displayed on waveform window.