Test point placement in PCB Design - Dashboard Guide

Dashboard Mode - Test point placement

Goal

Understand how test points are placed on a PCB to ensure easy access for testing and debugging.

Sample Data: PCB Test Points

Test Point ID	Net Name	X Position (mm)	Y Position (mm)	Accessible (Yes/No)	Signal Type
TP1	VCC	10	5	Yes	Power
TP2	GND	12	5	Yes	Ground
TP3	DATA1	15	8	No	Signal
TP4	CLK	18	7	Yes	Signal
TP5	RESET	20	6	No	Signal
TP6	VCC	22	5	Yes	Power

Dashboard Components

• KPI Card: Total Test Points - Formula: Count of Test Point IDs = 6
• KPI Card: Accessible Test Points - Formula: Count where Accessible = 'Yes' = 4
• Bar Chart: Test Points by Signal Type - Counts grouped by Power, Ground, Signal
• Table: List of Test Points with positions and accessibility
• Scatter Plot: Test Point Positions (X vs Y) - Points colored by Accessibility (Yes=green, No=red)

Dashboard Layout

+----------------------+----------------------+
| Total Test Points (6) | Accessible Points (4) |
+----------------------+----------------------+
|                      Bar Chart: Test Points by Signal Type           |
+---------------------------------------------------------------------+
| Table: Test Points List               | Scatter Plot: Positions     |
| (with accessibility and positions)  | (X vs Y colored by access)  |
+---------------------------------------------------------------------+

Interactivity

Filter by Signal Type (Power, Ground, Signal) updates the Bar Chart, Table, and Scatter Plot to show only selected types. Selecting a Test Point in the Table highlights it on the Scatter Plot.

Self Check

If you add a filter to show only Accessible = 'Yes', which components update and what changes occur?

• Bar Chart updates to count only accessible test points by signal type.
• Table shows only accessible test points.
• Scatter Plot shows only accessible points (green dots).
• KPI cards update: Total Test Points remains 6, Accessible Test Points remains 4.

Key Result

Dashboard shows PCB test points count, accessibility, signal type distribution, and spatial positions for test point placement analysis.