What is the major difference betweet 3 different ways of creating a DCFIFO?1). by MegaWizard plug-in manager 2). by a Symbol in BDF editor 3). by a Qsys In which case which one should be used? Which one is less buggy?
1) Generates a DCFIFO component with a "basic" interface, to be used directly in VHDL/HDL code.2) Does the the same as 1 and generates a component to be used in BDF. 3) Generated a DCFIFO component with an Avalon-ST interface, to be used as part of a Qsys system. So, you use 3) when you need a DCFIFO in a Qsys system 2) when you need a DCFIFO for a piece of logic you're creating using BDF. And you should avoid BDF at all if possible. 1) when you need a DCFIFO for a piece of logic you're creating using VHDL/Verilog.