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util_wfifo constraints

Question asked by Muhammet on Dec 17, 2015
Latest reply on Dec 22, 2015 by Muhammet



I use FMCOMMS1 NO-OS. Vivado 2014.4. I get the following warnings for util_wfifo constraints. (Timing is not met)


[Vivado 12-508] No pins matched 'get_pins -hier */PRE -filter {NAME =~ *i_*fifo_rst*}'. ["c:/work/mozgur/XilinxProjects/SelectIO_Test/PicoZed/SelectIO_Test.srcs/sources_1/ipshared/":8]


[Vivado 12-508] No pins matched 'get_pins -hier */CLR -filter {NAME =~ *i_*fifo_rstn_reg*}'. ["c:/work/mozgur/XilinxProjects/SelectIO_Test/PicoZed/SelectIO_Test.srcs/sources_1/ipshared/":11]


I checked the util_wfifo hdl code for these signal names but I did not find the signals. There are fifo_rst and fifo_rst_n signals but they have no prefix like "i_".


How can I fix this constraint file(util_wfifo_constr.xdc)? Should I just remove "i_" ?