UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 11138

3.1i COREGEN - When I generate a core with an existing .xco, "# ERROR: Unrecognized core parameter <parameter_name>" and similar errors are reported

Description

Keywords: CORE Generator, COREGen, unrecognized, parameter, customization, distributed memory, pipeline_stages

Urgency: Standard

General Description
When I generate a core using an .xco parameter file from a previous version of the core, a message similar to the following is reported:

# ERROR: Unrecognized core parameter pipeline_stages.
# ERROR: Customization parameter rule checks failed. Terminating core elaboration:
# ERROR: SimGenerator: Failure to set Sim customization parameters for core Distributed_Memory.
# ERROR: Elaboration failure for core Distributed_Memory.
# ERROR: Errors occurred at line 30. GENERATE.
# ERROR: Errors found during execution of command file /project/coregen/dist_mem_v3.xco.
# ERROR: EXECUTE command failed for file </project/coregen/dist_mem_v3.xco>.

or

ERROR: Customization parameter rule checks failed. Terminating core elaboration: Invalid value for parameter Clock Cycles Per Sample. This parameter must be set in the xco file.
ERROR: SimGenerator: Failure to set Sim customization parameters for core Distributed_Arithmetic_FIR_Filter.
ERROR: Elaboration failure for core Distributed_Arithmetic_FIR_Filter.

Solution

This error occurs because the core parameters in the .xco are not compatible between versions of the core.

For example, the .xco file from Distributed Memory v3_0 is not compatible with Distributed Memory v4_0 (as the parameter "pipeline_stages" has been changed to "latency").

Therefore, simply changing the version number manually in the .xco file will not work; you must run CORE Generator through the customization GUI.
AR# 11138
Date Created 03/05/2001
Last Updated 08/23/2002
Status Archive
Type General Article