electronics - Page 1

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Michael Earls

Michael has been a computer nerd since he was ten years old and he begged his parents to buy him a computer for Christmas. In 1982, he was the proud owner of a TI-99/4A. He's been coding since.

Montgomery, AL, USA (map)

@cerkit
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Jeff Tyler

Jeff is a C# developer who has been developing software since 2007. In his free time, he enjoys playing around with new technologies or being out doors hunting, fishing or just hanging out.

Alabama, USA (map)

Michael's musical creations

Strange VGA Effects on an FPGA

Written by Michael Earls 15 July 2017

When I assembled my VGA implementation on my Mojo FPGA, I did so with only a single wire for each of the color signals (Red, Green, and Blue). This limited my color choices to 8 colors. I read about using Pulse width modulation to send other values to a wire,…

electronics FPGA

A Saturday morning puzzle on my FPGA

Written by Michael Earls 17 June 2017

I woke up this morning with a desire to solve a puzzle. I decided that I'd make a simple LED chaser on a 7-segment LED display using my Mojo FPGA (now that I have everything working in Windows 10 again thanks to the awesome customer support from Justin at Embedded…

FPGA electronics hobbies

Pong on the Mojo Revisited

Written by Michael Earls 27 May 2017

In my previous post, I briefly discussed the implementation of a pseudo-pong game on my Mojo FPGA developer board. I was able to implement the VHDL version that I linked to later in the post and it works much better. The biggest challenge I had with it was converting the…

FPGA electronics programming

Creating PONG on the Mojo FPGA

Written by Michael Earls 26 May 2017

I recently found an old VGA monitor on the side of the road and it inspired me to see if I could get my Mojo FPGA board to output a VGA signal. I took the monitor apart and wired its VGA cable directly to my Mojo. I read up on…

FPGA electronics programming

Custom Fritzing part for Mojo v3

Written by Michael Earls 09 April 2017

There is a great tool called Fritzing that allows you to create a breadboard view of circuits that you can use for documentation. I really wanted to use it to document the breadboard for my post on setting up a reversible counter, but no one had created a part for…

electronics FPGA Illustrator

Solving the Stable Marriage problem on an FPGA (Part 2)

Written by Michael Earls 08 April 2017

In part 1, I introduced the Stable Marriage problem and proposed implementing it on an FPGA. In this post, I will define the approach I am taking to define the preferences in binary form. Series entries: Part 1 Part 2 (this entry) Note: Blog title image used without permission (pending)…

Mathematics FPGA electronics programming

Using Notepad++ as the default editor for Xilinx ISE

Written by Michael Earls 04 April 2017

I was having difficulties working with the built in text editor for the ISE FPGA tool from Xilinx. I was missing some of the things I've come to depend on in the editors that I use every day (Visual Studio, VSCode, Notepad++, etc.) I noticed in the preferences that I…

FPGA electronics

Reversible Binary Counter on the Mojo FPGA

Written by Michael Earls 03 April 2017

After playing around with the Binary counter implementation from a previous post: Implementing a simple binary counter in the Mojo FPGA IDE, I wanted to make the LEDs display a count down in response to a switch position. I decided to make a reversible slow counter that lets you choose…

FPGA electronics binary