AN 798: Partial Reconfiguration with the Arria 10 HPS

ID 683034
Date 1/25/2017
Public
Document Table of Contents

Qsys Partial Reconfiguration Freeze Logic

The freeze logic used by this example consists of two modules:

  • A freeze bridge that contains isolation, reset, and handshake logic for the reconfigurable region. Each freeze bridge controls a single interface to the PR region. A PR region can require more than one freeze bridge.
  • A freeze controller that provides a defined register interface for software to control one or more freeze bridges.

The example design uses both of these modules to provide isolation and freeze logic to the reconfigurable portions of the design. The device tree overlay describes these modules so that Linux can automatically control the logic during PR.