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The SPI-4.2 v8.1 Core does not support back-anno timing simulation on the SPI-4.2 design targeting Virtex-5. The timing simulation file generated gives incorrect simulation results.
To work around this problem, re-run NGDBuild through back-anno with the following environment variable:
XIL_MAP_NO_RAMB_UNTIE set to "0".
This issue is fixed in ISE 8.2i Service Pack 2.
AR# 23680 | |
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Date | 05/20/2014 |
Status | Archive |
Type | General Article |