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pcb:drc [2018/08/05 19:08]
cparker
pcb:drc [2018/09/02 16:23]
cparker
Line 1: Line 1:
-This page will serve to document the design rule checker.+This page will serve to document the design rule checker. This is presently documented "​as-is"​.
  
 ===DRC Violations=== ===DRC Violations===
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 Executing the DRC() action will wipe out the selected, found, and DRC flags on most objects, although, apparently not elements. Executing the DRC() action will wipe out the selected, found, and DRC flags on most objects, although, apparently not elements.
 +
 +  - Execute the DRC() action.
 +  - Generate the "DRC doesn'​t catch everything"​ warning.
 +  - Save layer state and turn on all layers.
 +  - Clear the FOUNDFLAG, DRCFLAG, and SELECTEDFLAG on all objects. DRC uses these flags to find errors.
 +  - InitConnectionLookup -- This resets all of the lists that are used for building the connectivity map.
 +  - For every element pin, pad, and via, execute DRCFind. DRCFind builds a connection list starting from the given     ​pin/​pad/​via four times. See below for a more detailed description of that process (if I get around to writing it).
 +    - Apply a global bloat of value "​Shrink",​ and build a connection list, with global drc set to false. This will set the DRCFLAG and SELECTEDFLAG on every object that is touching the given pin/​pad/​via.
 +    - Apply a global bloat of value 0, and build a connection list with global "​drc"​ set to true.
 +  ​
 +  ​
pcb/drc.txt ยท Last modified: 2020/06/28 12:37 by cparker