create_pr_configuration - 2021.2 English

Vivado Design Suite Tcl Command Reference Guide (UG835)

Document ID

UG835

Release Date

2021-10-22

Version

2021.2 English

Create new Configuration

Syntax

create_pr_configuration ‑name <arg> [‑partitions <args>]
    [‑greyboxes <args>] [‑use_netlist] [‑quiet] [‑verbose]

Usage

Name	Description
`-name`	Name of the Configuration
`[-partitions]`	List of partition instances and reconfig modules pairs
`[-greyboxes]`	List of instances to which buffers need to be inserted for all ports
`[-use_netlist]`	Use netlist for getting instances of partition_defs to creating configurations
`[-quiet]`	Ignore command errors
`[-verbose]`	Suspend message limits during command execution

Description

Important: You must first define the project as a Partial Reconfiguration (PR) project by setting the PR_FLOW property on the project to TRUE, or by using the Tools > Enable Partial Reconfiguration command.

The Partial Reconfiguration flow lets you create Partition Definitions (partitionDefs) from hierarchical cells in a design, and to specify reconfigurable modules (RMs) to be assigned to these partitionDefs to create unique configurations of the design based on the combination of the core design and one or more RMs. The PR design flow requires the implementation of each PR configuration, resulting in partial bitstreams for the RMs, but complete bitstreams for each integrated configuration. Refer to the Vivado Design Suite User Guide: Dynamic Function eXchange (UG909) for more information.

The create_pr_configuration command defines the combination of the static logic and the RM to create a unique configuration of the design. The PR configuration is the design that is implemented and the bitstream is generated for.

You will also need to create implementation runs for the PR configuration using the create_run -pr_config command.

This command returns the name of the newly created PR configuration, or returns an error if the command fails.

Arguments

-name <arg> - (Required) The name to give to the new PR configuration.

-partitions <arg> - (Optional) Specify the partition instance and reconfigurable module to apply to that instance in the PR configuration. The argument must be specified as <partitionInstance>:<RM>, and should be specified as a list when multiple name/value pairs are defined. This format lets you assign different RMs to multiple instances of a single partitionDef in the design.

-greyboxes <arg> - (Optional) Indicates that the specified partition instances will be defined as greyboxes, which are populated with LUT1s and signal buffers. Refer to the Vivado Design Suite User Guide: Dynamic Function eXchange (UG909) for more information.

-quiet - (Optional) Execute the command quietly, returning no messages from the command. The command also returns TCL_OK regardless of any errors encountered during execution.

Note: Any errors encountered on the command-line, while launching the command, will be returned. Only errors occurring inside the command will be trapped.

-verbose - (Optional) Temporarily override any message limits and return all messages from this command.

Note: Message limits can be defined with the set_msg_config command.

Example

The following example defines a new PR configuration and assigns the partitions:

create_pr_configuration -name prConfig1 -partitions fftEngine:fftTop

The following example defines three PR configurations, with two partitionDefs and different RMs assigned to each partition, as well an empty configuration with greyboxes:

create_pr_configuration -name cfg1 -partitions \
[list fftEngine:fftTop mgtEngine:mgtTop]
create_pr_configuration -name cfg2 -partitions \
[list fftEngine:fftTop mgtEngine:mgtBottom]
create_pr_configuration -name cfg3 -partitions { } \
-greyboxes [list fftEngine mgtEngine]