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!

cancel
Showing results for 
Search instead for 
Did you mean: 
Newbie snchao
Newbie
1,060 Views
Registered: ‎09-06-2017

how to fixed [Vivado 12-2285] Cannot set LOC property of instance ?

 

Dear Sir,

I am using Vivado v2017.1 for MIG IP DDR3.

My device part is  xcvu440-flga2892-1-c.

Here is critical warning log, how to fixed it ?

 

 

CRITICAL WARNING: [Vivado 12-2285] Cannot set LOC property of instance 'u_pd_main/u_core_top/u_ddr_top/u_mig/inst/u_ddr3_mem_intfc/u_mig_ddr3_phy/inst/u_ddr_iob/genByte[1].u_ddr_iob_byte/genBuf[0].genblk1.OBUF', Instance u_pd_main/u_core_top/u_ddr_top/u_mig/inst/u_ddr3_mem_intfc/u_mig_ddr3_phy/inst/u_ddr_iob/genByte[1].u_ddr_iob_byte/genBuf[0].genblk1.OBUF can not be placed in OUTBUF of site IOB_X0Y68 because the bel is occupied by u_pd_main/u_core_top/u_ddr_top/u_mig/inst/u_ddr3_mem_intfc/u_mig_ddr3_phy/inst/u_ddr_iob/genByte[5].u_ddr_iob_byte/genBuf[3].genblk1.OBUF(port:c0_ddr3_addr[8]). This could be caused by bel constraint conflict [/projusers/t0337af8/ZIV/UT0337A/UT0337A/0808_ASUS/ASUS_with_NEW_diff_DDR/FPGA/arc_ddr_no_pisp/db_arc_ddr_no_pisp_vivado_run/pad_top_edif.xdc:2616]
Resolution: When using BEL constraints, ensure the BEL constraints are defined before the LOC constraints to avoid conflicts at a given site.

 

thanks

~SN

0 Kudos
1 Reply
Xilinx Employee
Xilinx Employee
1,027 Views
Registered: ‎09-20-2012

Re: how to fixed [Vivado 12-2285] Cannot set LOC property of instance ?

Hi @snchao

 

Are you using Vivado GUI or scripts to run synthesis and implementation?

 

Did you assign the locations to MIG pins on elaborated or synthesized design and run report_drc to ensure pinout is valid?

 

You will need to rerun implementation from opt_design stage when you change the MIG pinout.

Thanks,
Deepika.
--------------------------------------------------------------------------------------------
Google your question before posting. If someone's post answers your question, mark the post as answer with "Accept as solution". If you see a particularly good and informative post, consider giving it Kudos (the star on the left)
0 Kudos