build: automatically add keep attribute to signals with timing constraints.
authorFlorent Kermarrec <florent@enjoy-digital.fr>
Fri, 6 Dec 2019 14:41:15 +0000 (15:41 +0100)
committerFlorent Kermarrec <florent@enjoy-digital.fr>
Fri, 6 Dec 2019 14:41:15 +0000 (15:41 +0100)
commit23c33cfa99943cfbd7eaa979f658381f57b40919
tree6d9e0ba64978b445d412f2fd0e8ae21761d45ef3
parent4c9af635d21ff24e2bc7433e3b7ae510d5198b21
build: automatically add keep attribute to signals with timing constraints.

Avoid having to specify it manually or eventually forget to do it and have a constraints that is not applied correctly.
litex/build/altera/quartus.py
litex/build/lattice/diamond.py
litex/build/lattice/icestorm.py
litex/build/microsemi/platform.py
litex/build/xilinx/ise.py
litex/build/xilinx/vivado.py