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When working on a (small board, lots of traces), layer confusion is your enemy. Sprint Layout uses a color-coded system:
Narrow and wide body SO-8, SO-14, and SO-16, plus high-density TSSOP-20.
To save time, don't place keys one by one. Create a row macro .
| Test Case ID | Scenario | Expected Result | | :--- | :--- | :--- | | | Record 4 pads on Top Layer. | Macro records 4 pads on Top Copper layer only. | | TC-002 | Attempt to record Bottom Layer trace during a Top Macro session. | System blocks action or displays "Layer Locked" notification. | | TC-003 | Generate 60-pin TQFP macro with 0.5mm pitch. | System places 60 pads correctly in a quad configuration with accurate spacing. | | TC-004 | Insert Macro into existing design. | Macro groups as a single unit; user can rotate 90°/180° before placing. |