Online DRC - overview
This Knowledge item is an overview of the Online DRC function - one of the new features introduced in DesignSpark PCB Version 5 in response to the user community requests for this functionality
What is Online DRC?
Online DRC allows you to identify layout errors in real-time which is a huge time-saving advantage over the traditional Design Rule Check. As well as the full 'batch mode' DRC, you also have the option of using Online DRC to catch errors as you are editing.
How to find this function?
Online DRC is enabled by default in DesignSpark PCB (V5 and later) software. As soon as you start editing your PCB you will notice that the software is showing design rule verification results on completion of each action you take.
This option, that is enabled from the Tools menu (when in PCB view):
Note: if the Online DRC is not appearing in the menu as shown above, click here for fix.
How to use Online DRC?
Online DRC will check any items that have been added or moved as a result of interactive editing operations. This includes, for example, all tracks attached to a component you have moved, or all tracks and vias added when manually routing.
As you finish adding or editing each item, the checker examines the items you have been adding or editing, and checks those against all the surrounding items for any spacing violations or cross-overs. If errors are found, error markers are added to the design so you can see where the errors are, and a message box appears prompting you to choose whether to finish with errors or resume editing (in which case the error markers are removed).
The same design rules are followed by both online and batch checkers ('normal' DRC'), including all your spacings. To learn more about Design Rule Check, setting and adjusting design rules, see Help>Contents>Search>Design Rule Check
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