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prjxray/minitests/clb-muxf8
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John McMaster 1cc5b72ca5 minitest: clean up folders 
Signed-off-by: John McMaster <johndmcmaster@gmail.com>
 		2019-01-07 23:31:44 +01:00
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README.md

CLB_MUXF8 Minitest

Purpose

This tests an issue related to Vivado 2017.2 vs 2017.3 changing MUXF8 behavior
The general issue is the LUT6_2 cannot be used with a MUXF8 (even if O5 is unused)

General notes:

  • 2017.2: LUT6_2 works with MUXF8
  • 2017.3: LUT6_2 does not work with MUXF8
  • All: LUT6 works with MUXF8
  • All: MUXF8 (even with MUXF7) can be instantiated unconnected
  • 2017.4 seems to behave like 2017.3