3.4. Constellation
Constellation is a Chisel NoC RTL generator framework designed from the ground up to support integration in a heterogeneous SoC and evaluation of highly irregular NoC architectures.
Constellation generates packet-switched wormhole-routed networks with virtual networks and credit-based flow control
Constellation supports arbitrary directed graph network topologies, including irregular and hierarchical network topologies
Constellation includes a routing algorithm verifier and routing-table compiler, which can verify and generate deadlock-free routing tables for arbitrary topologies
Constellation is a protocol-independent transport layer, yet is capable of compliant deadlock-free transport of protocols like AXI-4 and TileLink
Constellation supports drop-in integration in Chipyard/Rocketchip SoCs
Constellation is rigorously tested, with almost 100 different tests across as many network configurations
Constellation is fully integrated into Chipyard, and can be used to generate almost any interconnect in a Chipyard/Rocketchip-based SoC.
For documentation on Constellation, see its documentation pages.