4-2. Trace Output/Node Waveform

1. Select the outputs in the schematic. Here we select Sum & Cout in this example.

2. Click 'TRACE' in the 'command window'. (Now, all the ports are listed)

4-3. Run It!

1. Select 'RUN' in the right hand side palette. Select 'For Time' in the pop up menu and then specify a time interval for running. Then click 'OK'. The output waveform will be traced as shown in Fig 4-7.

   

   Fig 4-7. Run the design simulation 'A'

2. To simulate another input waveform, you have to first reset the simulator to time zero by clicking on 'RESET...' in the simulation palette. Select only 'State' and disable the 'Save results Waveform DB' in the dialog box shown in Fig 4-8, then click 'OK'.

   

   Fig 4-8. Restart the simulation from time '0'

3. Click 'LIST' in the simulation palette to get output data in text form after the simulation is done.

4-4. Run simulation with assigned gate delay

Sometimes you may want to simulate your design with the gate delays you assigned in 'Design Architect'. (Please refer to Mentor Graphics Design Architect for assigning gate delay to each gate.)

1. From the main pull down menu bar, select:

   Setup -> Kernal

   A 'Setup Analysis' dialog box will appear as shown in Fig 4-9. Click on 'Delay' for timing mode. Then click 'OK'

   

   Fig 4-9. Select timing analysis with gate delay

2. Run simulation as explained in section 4-3. Run it!

4-5. Keep simulation setup

To save simulation setup means to save the whole environment settings, inputs, trace lists ...etc. so that it can be used whenever required . This is quite convenient when you repeatedly go back and forth between Design_Architect and QuickSim for minor design changes.

1. To save setup, select from the main menu bar:

   File -> Save -> Setup

   A 'Save Setup' dialog box will appear. Give a unique name for this environment setup or click on 'Navigator' to place to another subdirectory. Click the 'Replace' button, then Click on 'OK'

2. Next time, when you get into QuickSim, just restore the setup file you have saved. To restore setup, select from the main menu bar:

   File -> Restore -> Setup

   A 'Restore Setup' dialog box will appear. Enter the setup file name with complete path name, or click on 'Navigator' to locate your setup file. Select 'Restore setup without confirmation', then click on 'OK'.

1. Make sure the window you want to print is the 'active' one. (Simply click on that window in any place to make that window 'active'.)

2. From the main pull down menu bar, select:

   File -> Print

   A dialog box will pop up as shown in Fig 5-1. Enter 'laser' for 'Printer name' box then click 'OK'

   Note: if you are not using the tutorial at SCU Design Center, then find from your system manager the effective printer name.

   

   Fig 5-1. Print dialog box

1. Double click the '-' button in the upper left corner on the window frame. An 'Exit Quicksim' dialog box will appear. Click on 'OK'. Another dialog box 'Save Setup' will pop up. Accept all default settings by clicking 'OK'.

2. Another dialog box 'Save Waveform DB' will appear, enter the filename you want the output waveforms to be saved under. Enable the 'Replace' button. Then click 'OK'

   

   Fig 6-1.'Save Waveform DB' dialog box

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