Looking for free synthesis tools

[beowulf]

Free synthesis tools

Are any free synthesis tools available. I am not referring to synthesis within Xilinx and Altera tools (for specific FPGAs) but something like Synopsys or Leonardo Spectrum. I know there was a free verison of leo. available some time back but they stopped it

Is there anyway I can get some hands-on training with a tool similar to DC. I have the book ASIC synthesis by himanshu bhatnagar, I lack tools.

Any all pointers will be really appreicated.

Thanks,
Beowulf

 

[eda_wiz]

Free synthesis tools

Just have a look at this... I thought this free tool supports simulation only. But it says synthesis also is supported..

http://www.icarus.com/eda/verilog/index.html

What is Icarus Verilog?
Icarus Verilog is a Verilog simulation and synthesis tool. It operates as a compiler, compiling source code writen in Verilog (IEEE-1364) into some target format. For batch simulation, the compiler can generate an intermediate form called vvp assembly. This intermediate form is executed by the ``vvp'' command. For synthesis, the compiler generates netlists in the desired format.
The compiler proper is intended to parse and elaborate design descriptions written to the IEEE standard IEEE Std 1364-2001. The standard proper was released towards the middle of the year 2001, though in a rather pricey electronic form. This is a fairly large and complex standard, so it will take some time for it to get there, but that's the goal.

Icarus Verilog is a work in progress, and since the language standard is not standing still either, it probably always will be. That is as it should be. However, I will make stable releases from time to time, and will endeavor to not retract any features that appear in these stable releases. The quick links above will show the current stable release.

The main porting target is Linux, although it works well on many similar operating systems. Various people have contributed precompiled binaries of stable releases for a variety of targets. These releases are ported by volunteers, so what binaries are available depends on who takes the time to do the packaging. Icarus Verilog has been ported to That Other Operating System, as a command line tool, and there are installers for users without compilers. You can compile it entirely with free tools, too, although there are precompiled binaries of stable releases. Incidentally, I know for certain that it is 64bit clean, because it is developed on Linux/alpha.

 

[gknerd]

Re: Free synthesis tools

Here is another
Alliance VLSI CAD System
http://www-asim.lip6.fr/recherche/alliance
but it only support limited subset of VHDL.

 

[semiconductorman]

Re: Free synthesis tools

If ur intent is to only learn and not for any serious app have a look at this

https://www.staticfreesoft.com/

 

[beowulf]

Re: Free synthesis tools

Thanks all for the replies.
I have tried Icarus and it does give the netlist as mentioned in the description. But I am looking for a tool which will allow me to do timing analysis (somthing like STA). I know its asking for too much, but hey u never know there must be something that everybody can benefit from

On a different note, Leonardo Spectrum was free once, I still have the software (will chk the version, it was just some time before it was taken off freeware).
CAN somebody provide the license file for the free version. I can upload the software if required.

Thanks,
Beowulf

 

[gogogo]

Free synthesis tools

ise is widely used in the field of fpga,
and u can get free version from internet.

 

[the_penetrator]

Re: Free synthesis tools

webpack is the free Xilinx synthesis tool.

However, I must say that it is not that good in optimizing. Just to get the job done.

the_penetrator©