Version Found: V1.4
Version Resolved: Xilinx Answer 45195
All of the MIG 7 Series designs have been tested with the default XST option.
When "Keep Hierarchy" is set to YES, the following errors will be seen in MAP :
ERROR:MapLib:1121 - ddr2_ctrl_tl_i/mig_ddr2_wrapper_i/mig_ddr2_core_i/u_memc_ui_top_std/mem_intfc0/ddr_phy_top0/u_ddr_mc_phy_wrapper/gen_dqs_iobuf[0].gen_dqs_diff.u_iobuf_dqs/OBUFTDS is driven by ddr2_ctrl_tl_i/mig_ddr2_wrapper_i/mig_ddr2_core_i/u_memc_ui_top_std/mem_intfc 0/ddr_phy_top0/u_ddr_mc_phy_wrapper/u_ddr_mc_phy/ddr_phy_4lanes_0.ddr_phy_4la nes/ddr_byte_lane_B.ddr_byte_lane_B/ddr_byte_group_io/dqs_gen.oddr_dqs (Q pin) and ddr2_ctrl_tl_i/mig_ddr2_wrapper_i/mig_ddr2_core_i/u_memc_ui_top_std/mem_intfc0/ddr_phy_top0/u_ddr_mc_phy_wrapper/u_ddr_mc_phy/ddr_phy_4lanes_0.ddr_phy_4lanes/ddr_byte_lane_B.ddr_byte_lane_B/ddr_byte_group_io/dqs_gen.oddr_dqsts (Q pin),but they are not all in the same level of hierarchy. Please ensure that any OBUF(T)DS with differential IOSTANDARD that is driven by a register or OSERDES exists in the same level of hierarchy as its drivers. This may be achieved by setting KEEP_HIERARCHY=FALSE on those levels of hierarchy separating the OBUF(T)DS from its drivers.
To work around this issue, set "Keep Hierarchy" to Soft or add keep_hierarchy constraints for all of the sub-modules of the MIG design.
This can be done in either the xcf or ucf file.
INST "u_mig_7series_v1_4*" keep_hierarchy= no; The syntax for UCF : INST "u_mig_7series_v1_4*" KEEP_HIERARCHY = FALSE;
AR# 46782 | |
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日期 | 08/07/2014 |
状态 | Active |
Type | 已知问题 |
器件 | |
Tools | |
IP |