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AR# 67922

RLDRAM3 IP - Example Design - Advanced Traffic Generator (ATG) detects data compare errors when testing with the TG_MAX_NUM_OF_ITER_ADDR parameter is set to a large value

Description

Version Found: RLDRAM3 v1.2 (Rev. 1)

Version Resolved :See (Xilinx Answer 58435)

The Advanced Traffic Generator (ATG) will report data compare errors in the following situation:

The value of the parameter TG_MAX_NUM_OF_ITER_ADDR * (8 / Burst Length) > 2^[ (# of address bits) + (# of BA bits) ].

Failures are typically seen when the ATG is configured for linear addressing and PRBS data, and commonly occur in the first few addresses of the memory. When errors occur, the VIO_TG_STATUS_EXP_BIT and VIO_TG_STATUS_READ_BIT signals will indicate a complete mismatch.

Solution

To avoid these data errors when using the ATG, keep TG_MAX_NUM_OF_ITER_ADDR * (Number of instructions per burst) less than the max number of addresses.

Revision History:

10/06/2016 - Initial Release

AR# 67922
Date Created 09/23/2016
Last Updated 10/13/2016
Status Active
Type Known Issues
Devices
  • Kintex UltraScale
  • Virtex UltraScale
Tools
  • Vivado Design Suite - 2016.2
IP
  • RLDRAM3
  • MIG UltraScale
Boards & Kits
  • Kintex UltraScale Boards and Kits
  • Virtex UltraScale Boards and Kits