![]() With Multisim's tight integration to Ultiboard, a simple and easy-to-use procedure ensures that all updates to a schematic are automatically realized in PCB layouts. This is to indicate that the component has been replaced and must now be placed and routed into the design.įorward annotation is a critical step in the design cycle and is the main process to ammend PCB layouts with fixes to errors that were discovered through prototype testing. Notice that the change has pulled the resistor R1 out of the board outline (as shown in Figure 2 below). To bring forward annotations, do the following: Click View Annotations and Bring Forward Annotations. To add image, text, or sticky comment annotations: Open the Doc Info page and click View annotations in the viewer panel. The new resistor has been transferred to the original layout. Ultiboard informs you of the specific netlist changes (in this case the new resistor).In the Default Track Width and Clearance dialog box select the desired clearance and width settings.Ultiboard will warn you that you are replacing the existing Ultiboard netlist with this new version and that this change cannot be undone.In the Save-As dialog box, save the annotated netlist to the same name as the layout filename (SpeechFilter.ewnet).In Multisim select Transfer > Forward Annotate to Ultiboard.To forward annotate this change to Ultiboard: The resistor R1 now has the RES0.25 footprint rather than the default RED0.5 footprint. Click on the OK button to exit the component properties dialog box. Click on the OK button to save the changes.Ħ.From within the Select a Footprint dialog box, select the RES0.25 footprint (as pictured in Figure 1 below).Source code > Release 1.3. Click on the Select from Database button. Select the text of the webpage and click the end of the selection to highlight and add your own annotation or notes.Double-click on the component and click on the Edit Footprint button.From within Multisim select resistor R1 on the schematic.You will change the footprint associated with this resistor then forward annotate the change to Ultiboard. You may for example integrate a knowledge base of your choice create and modify custom knowledge bases create and modify custom layers and tagsets to annotate your individual task build custom so-called recommenders which automatically suggest annotations to you so you will work quicker and easier and much more. Assume that you have received an engineering change order (ECO) requiring that you change the footprint of R1 from RES0.5 to RES0.25. In this example assume that you have already transferred a completed schematic to a PCB for layout and are now in a review cycle, making changes to the original schematic that need to be reflected in the PCB layout. The example schematic used here is available in the samples directory found in your base Multisim installation path: (\Samples\SpeechFilter.ms9).
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