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AR# 52122

MIG 7 Series DDR3/DDR2 - DQS_AUTO_RECAL parameter causes error when using Synplify as synthesis tool

Description

Version Found: MIG 1.7

The MIG Series design sets a DQS_AUTO_RECAL parameter based on the configuration of the core.

This parameter is defined within the module user_design\rtl\phy\mig_7series_v1_7_ddr_byte_lane.v

This parameter is set correctly when using XST, but incorrectly with Synplify.

Solution

To work around this issue, modify the setting of the DQS_AUTO_RECAL parameter within the user_design\rtl\phy\mig_7series_v1_7_ddr_byte_lane.v module as follows:

Original Code:
 

localparam   DQS_AUTO_RECAL = (BANK_TYPE == "HR_IO" || BANK_TYPE == "HRL_IO" || (BANK_TYPE == "HPL_IO" && TCK > 2500)) ? 1 : 0;

Modified Code:
 

localparam   DQS_AUTO_RECAL = (BANK_TYPE == "HR_IO" || BANK_TYPE == "HRL_IO" || (BANK_TYPE == "HPL_IO" && TCK > 2500)) ? "1" :" 0";

AR# 52122
Date Created 10/24/2012
Last Updated 08/13/2014
Status Active
Type Known Issues
Devices
  • Artix-7
  • Virtex-7
  • Kintex-7
IP
  • MIG 7 Series