PSpice User Guide

PSpice User Guide

Issue link: https://resources.pcb.cadence.com/i/1180526

Contents of this Issue

Navigation

Page 612 of 884

PSpice User Guide Digital simulation October 2019 613 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. To introduce transitions (method two) 1. From the Plot menu, choose Axis Settings. 2. Enter values in the Displayed Range for Time text boxes and the Timing Resolution text box as required for adding transitions. For example, if you wish to add transitions every 1 ms, set the Timing Resolution to 1ms. 3. From the Stimulus Editor's Edit menu, choose Add. 4. Place the tip of the pencil-shaped pointer on the waveform, and click to create transitions as shown here: Here are some other things that you can do: ❑ Move a transition left or right by clicking and dragging. ❑ Delete a transition by selecting it and then, from the Edit menu, choosing Delete (or by pressing Del). ❑ Select more than one transition by holding down Shift while clicking. 5. When you finish creating transitions, right-click. 6. Click the transition at the start (far left) of the interval. A small diamond appears over the transition. 7. From the Edit menu, choose Attributes to display the Edit Digital Transition dialog box. 8. In the Transition Type frame, choose Set Value, Increment, or Decrement. 9. Do one of the following to specify the bus value: ❑ In the Value text box, type a value. ❑ Select one of these defaults from the list: 0, All bits 1, X (Unknown), or Z (High impedance). 10. Click OK. 11. Repeat steps 6 through 10 for each transition.

Articles in this issue

view archives of PSpice User Guide - PSpice User Guide