pcb:drc
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pcb:drc [2018/08/05 19:04] cparker |
pcb:drc [2018/09/02 16:23] cparker |
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| - | 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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| ===Process=== | ===Process=== | ||
| - | Presently, the violations are identified in find.c, and then appended to a list in either the lesstif or gtkhid. | + | Presently, the violations are identified in find.c, and then appended to a list in the gtk hid. In the lesstif and batch hids, you get a pop-up window or a text prompt that describes the error. |
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| + | 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. | ||
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pcb/drc.txt · Last modified: 2020/06/28 12:37 by cparker
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