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toshas

Xilinx Design Tools (Vivado, SDAccel, SDSoC) 2016.1 and 2016.2 write_bitstream issue

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Неприметный, но важный AR.

 

https://www.xilinx.com/support/answers/68006.html

 

Some designs created in the 2016.1 and 2016.2 versions of Xilinx Design Tools

have been found to have incorrect bitstreams. The root cause has been identified

as a multi-threading (default) issue in write_bitstream, which can cause some

configuration memory cells to be set to 0 instead of 1.

 

CRC will still pass for these bitstreams, as the bitstream CRC is calculated using

the incorrectly set values and will result in a valid check when the bitstream is loaded.

 

All devices (7 Series, Zynq-7000, UltraScale, UltraScale+, and Zynq UltraScale+)

and all OS's (Windows and Linux) are impacted by this issue.

 

Xilinx Design Tools including Vivado, SDAccel, and SDSoC (2016.1 and 2016.2 versions) are impacted.

 

Multi-threading is turned off for write_bitstream in Vivado 2016.3, SDAccel 2016.3

and SDSoC 2016.3, so this issue will not occur for those versions and later.

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