The constraint where added to remove timing problems on the reset path.
The constraint paths do not match anymore. The resets are used in a synchronous
way so we don't need the timing exceptions anyway.
Projects affected by this change:
- daq3
- adrv9739
- ad6676evb
- fmcadc5
- daq2/kcu105
- fmcadc2
- adrv9371x
- fmcomms11/zc706
- fmcjesdadc1
Xilinx recommends that all synchronizer flip-flops have
their ASYNC_REG property set to true in order to preserve the
synchronizer cells through any logic optimization during synthesis
and implementation.
Istvan Csomortani
AndreiGrozav
Rejeesh Kutty