com.xilinx.rapidwright.rwroute

Class GlobalSignalRouting

Object

com.xilinx.rapidwright.rwroute.GlobalSignalRouting

public class GlobalSignalRouting
extends Object

A collection of methods for routing global signals, i.e. GLOBAL_CLOCK, VCC and GND. Adapted from RapidWright APIs.

Constructor Summary

Constructors

Constructor and Description
GlobalSignalRouting()

Method Summary

Modifier and Type	Method and Description
static Map<RouteNode,List<SitePinInst>>	getLCBPinMappings(List<SitePinInst> clkPins, Function<Node,NodeStatus> getNodeStatus) Maps each sink SitePinInsts of a clock net to a leaf clock buffer node.
static void	routeClkWithPartialRoutes(Net clk, Map<String,List<String>> routesToSinkINTTiles, Device device, Function<Node,NodeStatus> getNodeStatus) Routes a clk enable net with input data.
static void	routeStaticNet(List<SitePinInst> pins, Function<Node,NodeStatus> getNodeState, Design design, RouteThruHelper routeThruHelper) Routes pins from a static net (GND or VCC).
static void	symmetricClkRouting(Net clk, Device device, Function<Node,NodeStatus> getNodeStatus, Map<Integer,Set<ClockRegion>> usedRoutingTracks) Routes a clock net by dividing the target clock regions into two groups and routes to the two groups with different centroid nodes.

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GlobalSignalRouting

public GlobalSignalRouting()

Method Detail

routeClkWithPartialRoutes

public static void routeClkWithPartialRoutes(Net clk,
                                             Map<String,List<String>> routesToSinkINTTiles,
                                             Device device,
                                             Function<Node,NodeStatus> getNodeStatus)

Routes a clk enable net with input data.

Parameters:

clk - The net to be routed.

routesToSinkINTTiles - A map storing routes from CLK_OUT to different INT tiles that connect to sink pins of a global clock net.

device - The target device needed to get routing path representation with nodes from names.

getNodeStatus - Lambda for indicating the status of a Node: available, in-use (preserved for same net as we're routing), or unavailable (preserved for other net).

symmetricClkRouting

public static void symmetricClkRouting(Net clk,
                                       Device device,
                                       Function<Node,NodeStatus> getNodeStatus,
                                       Map<Integer,Set<ClockRegion>> usedRoutingTracks)

Routes a clock net by dividing the target clock regions into two groups and routes to the two groups with different centroid nodes.

Parameters:

clk - The clock to be routed.

device - The design device.

getNodeStatus - Lambda for indicating the status of a Node: available, in-use (preserved for same net as we're routing), or unavailable (preserved for other net).

A - map to keep track of which routing tracks have already been used for each clock region.

getLCBPinMappings

public static Map<RouteNode,List<SitePinInst>> getLCBPinMappings(List<SitePinInst> clkPins,
                                                                 Function<Node,NodeStatus> getNodeStatus)

Maps each sink SitePinInsts of a clock net to a leaf clock buffer node.

Parameters:

clkPins - List of clock pins in question.

Returns:

A map between leaf clock buffer nodes and sink SitePinInsts.

routeStaticNet

public static void routeStaticNet(List<SitePinInst> pins,
                                  Function<Node,NodeStatus> getNodeState,
                                  Design design,
                                  RouteThruHelper routeThruHelper)

Routes pins from a static net (GND or VCC).

Parameters:

pins - A list of static pins to be routed (must all be on the same net).

getNodeState - Lambda to get a node's status (available, unavailable, already in-use).

design - The Design instance to use.

routeThruHelper - The RouteThruHelper instance to use.