The BlockDiagramEditoris a tool for graphical entry of VHDL, Verilog and EDIF designs. If your HDL design is in large part structural, it may be easier for you to enter its description graphically as a blockdiagram, rather than writing the source code. Graphical/Text Design Entry - FPGA Design - Solutions - Aldec Is this answer helpful?Thanks!Give more feedbackThanks!How can it be improved?How can the answer be improved?Tell us how Free Online Diagram Editor Free editor to create online diagrams. Use our diagram editor to make Flowcharts, UML diagrams, ER diagrams, Network Diagrams, Mockups, floorplans and many more. Open and save your projects and export to Image or PDF. Block Diagram Maker | Free Online App & Download Top reasons SmartDraw is the ideal block diagram software: Quick-Start Templates Dozens of electrical design examples make you instantly productive. Choose a block diagram template that is most similar to your project and customize it to suit your needs. Exhaustive Symbol Library You get hundreds of ready-made visuals..