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Visitor gaurav_pc
Visitor
2,823 Views
Registered: ‎08-29-2012

Errors while running Translate

When running Translate in the ISE tools, I receive several of the following errors:

ERROR:NgdBuild:467 - output pad net 'fpga_0_ddr2_clk_0_OBUF' has an illegal buffer
ERROR:NgdBuild:467 - output pad net 'fpga_0_ddr2_clk_1_OBUF' has an illegal buffer...

ERROR:NgdBuild:947 - bidirect pad net 'fpga_0_ddr2_dq_0_OBUF' is driving non-input buffer(s): pin I on block fpga_0_ddr2_dq_0_OBUF with type OBUF
ERROR:NgdBuild:947 - bidirect pad net 'fpga_0_ddr2_dq_10_OBUF' is driving non-input buffer(s): pin I on block fpga_0_ddr2_dq_10_OBUF with type OBUF...

Why do I see these errors, and how can they be resolved?

 

I have tried http://www.xilinx.com/support/answers/32847.htm but it does not work.

 

Can I get some help on this?

 

Thanks,

Gaurav

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Visitor gaurav_pc
Visitor
2,816 Views
Registered: ‎08-29-2012

Re: Errors while running Translate

I am trying to run Implementation to generate the bit file and goinr through (ngdbuild, map, par, bitgen etc) I also tried disabling "Add I/O Buffers" according to http://www.xilinx.com/support/answers/34771.htm .

 

But then I get errors during MAP for :   "DDR2_SDRAM/DDR2_SDRAM/u_ddr2_top/u_mem_if_top/u_p

hy_top/u_phy_io/gen_dqs[0].u_iob_dqs/gen_dqs_iob_ddr2.u_iobuf_dqs" (output
   signal=DDR2_SDRAM/DDR2_SDRAM/u_ddr2_top/u_mem_if_top/u_phy_top/u_phy_io/gen_d
   qs[0].u_iob_dqs/dqs_ibuf) does not have IOSTANDARD specified. Map is unable
   to generate a default IOSTANDARD for IOBUFDS, one has to be explicitly
   provided.

 


How can I solve this problem?

 

Thanks,

Gaurav

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