I have very poor verilog knowledge, but i need to convert Verilog project, containing some .v files and folders wth .v files to one large EDIF file for parcing.
Is there any easy way to do this?
I have found iverilog tool, but not sure how to convert all project with subfolders at once.
Thank you!
EDIF (Electronic Design Interchange Format) is a vendor-neutral format in which to store Electronic netlists and schematics. https://en.wikipedia.org/wiki/EDIF .
Verilog is a Hardware Description Language, which can describe hardware at a higher, behavioural level of abstraction.
So, in general at least, the two are not compatible. So, in general, you will need to convert your Verilog to gate-level in order for it to be suitable for EDIF. The tool that converts Verilog to gate-level is a logic synthesiser and most, if not all, logic synthesisers will be able to output your netlist as an EDIF file.
So,
if your Verilog is not already gate-level, you will need a logic synthesiser. If you're doing an FPGA design, that will be your FPGA tool: Quartus, Vivado etc.
if your Verilog is already gate-level, then there may be other, more basic, tools that convert from one to another; I don't know. But, if your Verilog is already gate-level, a logic synthesiser will also be able to do the conversion.
Related
I have only recently started with CUDD.
I have a circuit in BLIF format and I want to input it to CUDD with which I understand it's going to give me the BDD and I want the ZDD too.
I have read through the readme file, but for the life of me, I can't find how to work with this at all.
Can anyone please tell me how to input the blif to CUDD in detail? (what command and where to write the command)
Sorry if this is too basic.
While CUDD has a function to write a BDD as Blif file to disk (see here, function Cudd_DumpBlif), the library does not have a function for reading a Blif file from disk.
This means that you will need to implement it yourself if you need it or salvage a similar functionality from other code. Note that doing this well with BDDs is non-trivial, unless your circuit is really small. The ABC framework for working with circuits has a module with more than 1000 lines for reading Blif files.
Another possibility would be to use the ABC framework for converting the BLIF file into something that is easier to read. For instance, you could load the BLIF file and then write it in CNF form (see the write_cnf command here). This will only work for very small circuits, though. There is a reason why in the hardware domain, AIGs (and-inverter graphs) are more commonly used.
Is there any tool/application available online which helps me to check the synthesis output of the RTL written?
Example: I have written some RTL code(In verilog) and want to check
-> If it is synthesize-able or not?
-> Netlist RTL has generated.
Might this meet your needs?
http://www.plunify.com/
Some words from the website to make this answer long enough...
Plunify helps design teams manage and scale compute demands, providing
FPGA synthesis and place-and-route on a pay-as-you-use basis
Can anyone tell me how to write a verilog code for DWT of an image and download in to fpga.
Actually my project is to write a verilog code to perform discrete wavelet transform of a medical image, can anyone frame the logic or if have the code can you send me, please
I am using xilinx virtex 2 pro..
This one is in VHDL instead of Verilog, but might still provide at least some inspiration.
Generally FPGA's come with software for programming them. Depending on manufacturer those packages are different. But most of FPGA manufacturers(Xilinx, Altera, etc) ship tools to program their chips.
Besides that there are few 3rd party tools:
http://www.synopsys.com/Solutions/EndSolutions/FPGASolution/Pages/default.aspx
http://www.aldec.com/Products/default.aspx
Can anyone tell me how to write a verilog code for DWT of an image and download in to fpga.
Actually my project is to write a verilog code to perform discrete wavelet transform of a medical image, can anyone frame the logic or if have the code can you send me, please
I am using xilinx virtex 2 pro..
This one is in VHDL instead of Verilog, but might still provide at least some inspiration.
Generally FPGA's come with software for programming them. Depending on manufacturer those packages are different. But most of FPGA manufacturers(Xilinx, Altera, etc) ship tools to program their chips.
Besides that there are few 3rd party tools:
http://www.synopsys.com/Solutions/EndSolutions/FPGASolution/Pages/default.aspx
http://www.aldec.com/Products/default.aspx
I've searched the net but didn't found anything interesting. Maybe I'm doing something wrong.
I'm looking for sound synthesis API written on C, C++ or even Objective-C, which can synthesize different types of waves, effects are optional.
Here's a complete library/toolkit for FM (Frequency Modulation) synthesis:
link1
link2
If you have time to spare... creating simple sound synthesis from scratch is actually a fun endeavor. If you create a small buffer of 256 16 bit samples which represent either a sine. a sawtooth, block or pulse, you can copy these to a live audiobuffer (e.g. a small buffer (say 16kb)) which constantly loops. By staying ahead of the playposition, and constantly filling up the buffer with new values, you can create the soundoutput.
You can use the small buffers to combine these in interesting ways (simplest is just to add them together (additive synthesis)).
The frequency of the tone can be manipulated by using a bigger or smaller sampling step through the small buffers. Amplitude can be manipulated by scaling the samples before putting them into the output buffer.
Great fun experimenting with this!
If you have this step nailed, you can add more sophisticated effects like filters (low pass, high pass, etc) and effects (reverbs, echoes, etc)
R
Have you looked at the synthesis toolkit (STK)? It's in C++ (I don't think ObjC is the right language for audio synthesis, in fact audio units, Apple's own way of doing audio stuff, including generators/filters/effects... is in C++).
STK will run on Mac OS X, and iOS no problem (CoreAudio is supported), but will also run on Linux and Windows (Direct sound and ASIO), using RtAudio. It's really nicely done and lightweight, these guys have spent a lot of time thinking about it and it will definitely give you a big head start. It can handle loads of different audio file formats + midi (and hopefully OSC soon...).
There is also Create and CLAM which is huge, these include GUI components and many other things which you might or might not want. If you're only interested in doing sound synthesis I really recommend STK.
PortAudio is also a great C API that we used last semester in an audio programming course. It provides an audio callback...what more could you need!?
I haven't tried incorporating it with anything in Objective-C yet, but will report back when I do.
Writing audio synthesis algorithms in C/obj-C is quite difficult in my opinion. I would recommend writing your signal processing algorithms using PureData and then use ZenGarden or libpd to embed and interpret the pd patches in your app.
Another C++ library is nsound:
http://nsound.sourceforge.net
One can generate any kind of modulated signal using the Generator class or using the provided Sine class. Each time-step can have it's own instantaneous frequency and phase offset.
You can also experiment with the Python module to prototype your algorithm quickly, then implement in C++. It can produce pretty matplotlib plots from Python and even from C++!
Have you looked at CSound? It's an incredibly flexible audio generation platform, and can handle everything from simple waveform generation to FM synthesis and all kinds of filters. It also provides MIDI support, and you can extend it by writing custom opcodes. There's a full C API and several C++ APIs as well.