AN 521: Cyclone III Active Parallel Remote System Upgrade Reference Design

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AN 521: Cyclone III Active Parallel Remote System Upgrade Reference Design [复制链接]

Introduction
Among the difficult challenges that system designers face are shortened design cycles, evolving standards, and system deployments in remote locations. Cyclone® III devices help overcome these challenges with their inherent reprogrammability and dedicated circuitry to perform remote system upgrade. CycloneIII devices support the remote system upgrade feature in active parallel (AP) and active serial (AS) mode.
The objective of this reference design is to educate you on the CycloneIII remote system upgrade feature. With remote system upgrade, CycloneIII devices are able to receive a new configuration data from a remote source, update the flash memory content and reconfigure themselves with the new configuration data. In this reference design example, the ALTREMOTE_UPDATE megafunction is instantiated along with a user logic to initiate the reconfiguration cycle. This reference design is targeted for the CycloneIII Starter Kit Board and is useful for system designers to get started with the remote system upgrade feature. You may modify this reference design to suit your system usage.