Is creating a project possible only with the EDIF files (as done in
xapp290) ?
Is it possible to create a project not from EDIF-files?
Than better to recode VHDL->EDIF?
I'm not sure what you mean here. EDIF is a netlist format: you'll use it
if you synthesize using Synplify. If you use XST to synthesize the netlist
format is different. Shouldn't make a difference.
In xapp290 alike used "Synplify" (version "6.2.0, Build 083R").
Synplify, Synplify Pro, and Synplify Premier 8.5 Production Software for
Windows (165830300 bytes)
Are there the programs a little less?
I've used XST with no problem.
How to do something alike, but from VHDL-files?
Do you mean making a macro from VHDL files? It may be possible, but I
don't really know.