关于VIVADO MIG IP核仿真报错的问题

问题遇到的现象和发生背景

本人最近仿照其他帖子做利用VIVADO MIG IP核实现DDR3数据读写的程序，仿真过程中出现以下错误,
init_calib_complete 也一直没有置1：
tb_ddr3.gen_mem[1].u_comp_ddr3.main: at time 315909565.0 ps ERROR: tCK(avg) maximum violation by 1700.000000 ps.
tb_ddr3.gen_mem[0].u_comp_ddr3.data_task: at time 315912070.0 ps INFO: READ @ DQS= bank = 0 row = 0000 col = 00000000 data = xxxx
tb_ddr3.gen_mem[1].u_comp_ddr3.data_task: at time 315912070.0 ps INFO: READ @ DQS= bank = 0 row = 0000 col = 00000000 data = xxxx
tb_ddr3.gen_mem[0].u_comp_ddr3.data_task: at time 315914569.0 ps INFO: READ @ DQS= bank = 0 row = 0000 col = 00000001 data = xxxx
tb_ddr3.gen_mem[0].u_comp_ddr3.main: at time 315914569.0 ps ERROR: tCK(avg) maximum violation by 1700.000000 ps.
tb_ddr3.gen_mem[1].u_comp_ddr3.data_task: at time 315914569.0 ps INFO: READ @ DQS= bank = 0 row = 0000 col = 00000001 data = xxxx

主要是不知道ERROR中的tCK(avg)是哪个时钟，求求路过的大佬们帮我看看