Segregate ground planes

Problem environment

Ground segregation of digital, analog, and radio circuits improves quality.

Steps to reproduce

1. Observe ground connections at the controller and switch
2. Compare with schematic and layout reference designs

Expected result

The ground connections should be segregated accordingly.

Actual result

The ground connections tie to a single plane.

Severity level

This is low priority because project requirements lack ground segregation.

Design review indicated that ground planes can be tied together.