AR# 63261

描述

Version Found: DDR3 v6.1, DDR4 v6.1, QDRII+ v6.1

Version Resolved: See (Xilinx Answer 69036) for DDR3, (Xilinx Answer 69035) for DDR4, and (Xilinx Answer 69038) for QDRII+.

W415 multi-driver errors can occur when running the SpyGlass Lint Check on MIG UltraScale DDR3, DDR4, or QDRII+ design.

For example:

解决方案

These multi-driver errors can occur during the Lint check for:

• signal 'example_top.c0_ddr4_app_rd_data[63:0]' located inside example_top.sv for DDR3 and DDR4 designs
  and
• signal 'example_top.u_mig_0.inst.u_mig_qdriip_phy.inst.phycal.cal.caladdrdecode.pat_ab_matched_r' located inside mig_qdriip_phy_v1_1_qdriip_cal_addr_decode.sv for QDRII+ designs.

These multi-driver error messages occur only during the Lint check and are safe to ignore as the Vivado synthesis tool handles these signals properly.

Revision History:

01/08/2015 - Initial Release

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