DRC failing with multiple driver nets in cl_ocl_slv

0

Hi,
I am adapting the cl_dram_dma hdk example for my own project, and during the running of aws_build_dcp_from_cl.sh, I am encountering the DRC error below. I cannot find anywhere in the cl_ocl_slv module or instantiation that has the nets below, so I was hoping to get some insight into why the DRC is failing and how to go about fixing it.

Thank you in advance.

Command: opt_design
Attempting to get a license for feature 'Implementation' and/or device 'xcvu9p'
INFO: [Common 17-349] Got license for feature 'Implementation' and/or device 'xcvu9p'
Attempting to get a license: PartialReconfiguration
Feature available: PartialReconfiguration
Running DRC as a precondition to command opt_design

Starting DRC Task
INFO: [DRC 23-27] Running DRC with 8 threads
ERROR: [DRC MDRV-1] Multiple Driver Nets: Net WRAPPER_INST/CL/CL_OCL_SLV/I9[0] has multiple drivers: WRAPPER_INST/CL/CL_OCL_SLV/pipe[0][0]_i_2/O, and WRAPPER_INST/CL/CL_OCL_SLV/pipe[0][0]_i_1__3/O.
WARNING: [DRC RPBF-3] IO port buffering is incomplete: Device port I2C_FPGA_MEM_R_SCL expects both input and output buffering but the buffers are incomplete.
WARNING: [DRC RPBF-3] IO port buffering is incomplete: Device port I2C_FPGA_QSFP28_R_SCL expects both input and output buffering but the buffers are incomplete.
INFO: [Project 1-461] DRC finished with 1 Errors, 2 Warnings
INFO: [Project 1-462] Please refer to the DRC report (report_drc) for more information.
ERROR: [Vivado_Tcl 4-78] Error(s) found during DRC. Opt_design not run.
asked 5 years ago369 views
1 Answer
0

Hello,

You should be able to open the Synthesized design schematic and trace the nets in question to the source/destination flops. This should give you an idea on where the multi-driven net is.

Thanks,
-Asif

awsasif
answered 5 years ago

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