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NewsgroupThe VHDL newsgroup is at news:comp.lang.vhdl. It is archived at http://groups.google.com. An FAQ (Frequently Asked Questions) is published at http://www.eda.org/comp.lang.vhdl/. General Informationhttp://www.eda.org has information about various working groups for VHDL and related standards. http://www.accellera.org has information about formal standardization activities. StandardsThe IEEE publishes all the VHDL standards. See http://standards.ieee.org. Free ModelsThe Free Model Foundation http://www.eda.org/fmf publishes free models of IP cores, as does Opencores – http://www.opencores.org. Note that both these sites include Verilog as well as VHDL models. Free ToolsSee the comp.lang.vhdl FAQ for a full list. Many of the commercial tools listed below are available in a free, limited form for evaluation or student use. Alliance http://asim.lip6.fr/alliance/ has both a simulator and synthesis tool. The FreeHDL project http://www.freehdl.seul.org/ aims to develop a VHDL simulator for Linux. There is a VHDL mode for the Emacs editor, which includes templates for common constructs – http://www.emacs.org Commercial ToolsThis is not supposed to be an exhaustive list. Inclusion of a tool in this list does not imply endorsement of that tool. Omission of a tool does not imply any criticism of that tool. Toolsets (Simulator + Synthesis)Cadence – http://www.cadence.com Synopsys – http://www.synopsys.com SimulatorsModel Technology – http://www.model.com Aldec – http://www.aldec.com Dolphin – http://www.dolphin.fr FTL – http://www.ftlsystems.com Several Verilog simulators are also available, e.g. Simucad – http://www.silos.com Synapticad – http://www.syncad.com SynthesisSynplicity – http://www.synplicity.com Exemplar – http://www.exemplar.com FPGAsThe final step in the design process is automatic place and route (APR) for an FPGA or ASIC. FPGA vendors generally supply their own APR tools. FPGA and CPLD vendors include: Altera – http://www.altera.com Xilinx – http://www.xilinx.com Lattice – http://www.latticesemi.com Actel – http://www.actel.com Atmel – http://www.atmel.com Cypress – http://www.cypress.com Quicklogic – http://www.quicklogic.com |