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Visitor shahbazali
Visitor
6,125 Views
Registered: ‎08-05-2009

IOBUFDS IOSTANDARD error when implementing EDK project in ISE

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I intend to use my custom IPs alongwith the EDK Microblaze project. So I imported EDK project in the ISE. Then I Generated "HDL Instantiation Template" to instantiate EDK project in my IP Top Level module. Synthesis was ok. But I have following single error in the Implement phase. Can anybody have an idea? Same design gets compiled in EDK without any problem.

 

ERROR:LIT:411 - IOBUFDS symbol
   "instance_name/DDR2_SDRAM_16Mx32/DDR2_SDRAM_16Mx32/mpmc_core_0/gen_v5_ddr2_ph
   y.mpmc_phy_if_0/u_phy_io_0/gen_dqs[0].u_iob_dqs/gen_dqs_iob_ddr2.u_iobuf_dqs"
   (output
   signal=instance_name/DDR2_SDRAM_16Mx32/DDR2_SDRAM_16Mx32/mpmc_core_0/gen_v5_d
   dr2_phy.mpmc_phy_if_0/u_phy_io_0/gen_dqs[0].u_iob_dqs/dqs_ibuf) does not have
   IOSTANDARD specified.
Errors found during logical drc.

 

 

Thanks

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Xilinx Employee
Xilinx Employee
7,427 Views
Registered: ‎08-07-2007

Re: IOBUFDS IOSTANDARD error when implementing EDK project in ISE

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The ports name in the top module need to match those in UCF. If not, you need to modify either the UCF or the top module.

 

-XF

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Xilinx Employee
Xilinx Employee
6,124 Views
Registered: ‎08-07-2007

Re: IOBUFDS IOSTANDARD error when implementing EDK project in ISE

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Do you add the UCF into your ISE project?

 

-XF

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Visitor shahbazali
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6,116 Views
Registered: ‎08-05-2009

Re: IOBUFDS IOSTANDARD error when implementing EDK project in ISE

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If I add the UCF file from the EDK design in the ISE project, then I start getting following error on all the definitions in the UCF file.

 

ERROR:ConstraintSystem:59 - Constraint <Net sys_clk_pin LOC=H17 |>
   [C:/WorkArea/EDK/VegaEP/data/VegaEP.ucf(7)]: NET "sys_clk_pin" not found.
   Please verify that:
   1. The specified design element actually exists in the original design.
   2. The specified object is spelled correctly in the constraint source file.

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Xilinx Employee
Xilinx Employee
7,428 Views
Registered: ‎08-07-2007

Re: IOBUFDS IOSTANDARD error when implementing EDK project in ISE

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The ports name in the top module need to match those in UCF. If not, you need to modify either the UCF or the top module.

 

-XF

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Visitor shahbazali
Visitor
6,102 Views
Registered: ‎08-05-2009

Re: IOBUFDS IOSTANDARD error when implementing EDK project in ISE

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That fixes the problem. I needed to add the UCF from the EDK project in the ISE project and then also add the ports defined by the HDL instantiation template into my Top-level module.

 

Thanks  a lot :)

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4,268 Views
Registered: ‎02-24-2011

Re: IOBUFDS IOSTANDARD error when implementing EDK project in ISE

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This resolves my problem. Thanks a lot.

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