Test point placement in PCB Design - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to place a test point at the specified net.

PCB Design

AddTestPoint(net=[1])

Drag options to blanks, or click blank then click option'

AGND

BVCC

CNC

DSIGNAL

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing GND instead of VCC

Using NC (no connection) as net

The test point should be placed on the power net VCC to monitor voltage.

2fill in blank

medium

Complete the code to set the test point size to 1.0 mm.

PCB Design

SetTestPointSize(size=[1])

Drag options to blanks, or click blank then click option'

A1.0

B0.5

C1.5

D2.0

Attempts:

3 left

💡 Hint

Common Mistakes

Selecting 0.5 mm which is too small

Choosing 2.0 mm which may be too large

The standard test point size is set to 1.0 mm for easy probe access.

3fill in blank

hard

Fix the error in the test point placement code by completing the missing layer.

PCB Design

PlaceTestPoint(net="SIGNAL", layer=[1])

Drag options to blanks, or click blank then click option'

ASilkscreen

BBottom

CInner1

DTop

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing Silkscreen layer

Selecting Inner1 which is buried inside PCB

Test points are usually placed on the Top copper layer for easy access.

4fill in blank

hard

Fill both blanks to define a test point with a circular shape and 1.2 mm diameter.

PCB Design

DefineTestPoint(shape=[1], diameter=[2])

Drag options to blanks, or click blank then click option'

Acircular

Bsquare

C1.2

D0.8

Attempts:

3 left

💡 Hint

Common Mistakes

Using square shape

Choosing diameter smaller than 1 mm

The test point should be circular with a diameter of 1.2 mm for standard probe compatibility.

5fill in blank

hard

Fill all three blanks to create a test point with net 'GND', on the bottom layer, and with a square shape.

PCB Design

CreateTestPoint(net=[1], layer=[2], shape=[3])

Drag options to blanks, or click blank then click option'

AGND

BBottom

Csquare

DTop

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up top and bottom layers

Using circular shape instead of square

The test point is placed on the GND net, on the Bottom layer, and has a square shape for specific probing needs.