Flattened uImage Tree (FIT) Images
Flattened uImage Tree (FIT) images are commonly used on embedded linux systems. This article covers the steps required to examine, extract, and regenerate a FIT image.
Building a Busybox based OS for the DE10 Nano
Instructions for building an compact Linux root file system for the Intel DE10 Nano FPGA SoC development board using Buildroot.
Building Embedded Debian for the DE10 Nano
Instructions for building an a Debian Linux based operating system for the Intel DE10 nano FPGA SoC development board. A mainline version of both u-boot and the Linux kernel are used.
Docker Cheatsheet
A short summary of the most common docker commands.
Git Cheatsheet
Dear future self, if you are reading this it looks like you have forgotten how to do something in Git again... Don't worry, it happens; this page has been created just for you!
Cascaded integrator–comb (CIC) filters
CIC filters are computationally efficient implementations of narrowband lowpass filters. They are particularly suited for use as an anti-aliasing filter when decimating or an anti-image filter when interpolating. CIC filters are well suited for implementation in FPGAs and ASICs as they only require addition and subtraction operations and not multiplication.
Using Git offline
Some companies use an isolated network or even the complete lack of a network as a security measure to protect from unauthorized access. Working on these systems can be a struggle but it is still possible, and perhaps even more important, to use a proper version control tool like Git.
Cheap LED Torch Repair
Attempting to fix a broken torch... Yes really!
Bluetooth controlled LED flashing Frisbee
A few friends and I decided it would be a good idea to make a light-up Frisbee so we could continue playing with it after it became dark. I decided to take it a step further and add control of the lights by via Bluetooth!
Using an HD44780 alphanumeric LCD screen
The Hitachi HD44780 is an LCD screen controller used to control small alphanumeric LCD displays. This post details how to control these displays.