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geda:add_a_ground_plane_to_your_layout [1970/01/19 10:16] russnelson created |
geda:add_a_ground_plane_to_your_layout [2016/07/05 13:30] (current) russnelson |
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* Lay out your circuit, yadda yadda. | * Lay out your circuit, yadda yadda. | ||
* Run ground traces on the ground layer and power traces on the power layer: | * Run ground traces on the ground layer and power traces on the power layer: | ||
- | * Do these steps for both top/power and bottom/ground: | + | * Turn off all layers but the ground (or power) layer. |
- | * Turn off all layers but the top layer. | + | * Use Ctrl-F on any ground (or power) connection. |
- | * Use Ctrl-F on any power connection. | + | |
* Use Select/Select all found. | * Use Select/Select all found. | ||
* Use Connects/Auto-route selected rats. | * Use Connects/Auto-route selected rats. | ||
* Auto-optimize and miter. | * Auto-optimize and miter. | ||
- | * Turn on the top and bottom layers. | + | * Turn on the top and bottom layers. |
* Route everything else using Connects/Auto-route all rats. | * Route everything else using Connects/Auto-route all rats. | ||
- | * Auto-optimize and miter. | ||
* The Message Log will report that your layout is complete. | * The Message Log will report that your layout is complete. | ||
- | * Select the top and draw a rectangle. | + | * Auto-optimize and miter. |
- | * Select the bottom and draw a rectangle. | + | * Select the power and draw a rectangle. |
+ | * Select the ground and draw a rectangle. | ||
* This fills-in the ground plane, but you're not done, because you still have the traces. | * This fills-in the ground plane, but you're not done, because you still have the traces. | ||
* Do these steps for both ground and power: | * Do these steps for both ground and power: | ||
* Use Ctrl-F on any ground connection (best where the power comes in). | * Use Ctrl-F on any ground connection (best where the power comes in). | ||
- | * While you're there, select the Via tool and drop a via on that connection. | + | * While you're there, select the Thermal (THRM) tool and drop a thermal on that connection. |
* Use Select/Select all found | * Use Select/Select all found | ||
* Use Select/Rip up selected auto-routed tracks. | * Use Select/Rip up selected auto-routed tracks. |