This repository contains VHDL codes with their tests. It also includes a simple Makefile to compile and run the test bench. make I=test/counter.vhdl T=test/counter.test.vhdl E=counter_tb This will ...

These examples use Yosys + NextPnR with ghdl-yosys-plugin to synthesize VHDL into a bitstream. This can be loaded onto the OrangeCrab using its DFU bootloader. vhdl.blinky - Basic "hello world" type ...

Learn how to write, simulate, synthesize, debug, and learn VHDL code for your hardware circuits. Find out the basics and advanced topics of VHDL with examples and resources.

This same approach can be also done in VHDL as shown in the example below. My circuit board. In this example, I used a very basic design of just a few components on a signal level. However, it’s easy, ...

Now, let us take a simple Boolean Expression/logic that your application-specific IC has to implement as given below. All these three types of modellings are pretty much the same, but there are some ...

The VHDL structures we will look at now will all be inside a VHDL structure called a ‘process.’ The best way to think of these is to think of them as small blocks of logic. They allow VHDL to break up ...

If you’ve been thinking about playing around with FPGAs and/or are interested in CPU design, [Domipheus] has started a blog post series that you should check out. Normally we’d wait unt… ...

This paper presents a novel tool flow combining rewriting logic with hardware synthesis. It enables the automated generation of synthesizable VHDL code from mathematical equations and the quick ...

Low complexity turbo-like codes based on simple two-state trellis or simple graph structure results in decoder with low complexity. Two-state multiple turbo code is one such example. In this paper, we ...