gertjanassies.dev

2026-04-16 By Gertjan Assies

Random Numbers on a Homebrew FPGA CPU

code fpga assembly cpu prng

Using a Galois LFSR hardware PRNG on a custom 8-bit CPU in an FPGA, wired up with IN and OUT instructions

2026-03-10 By Gertjan Assies

Experimenting with AI in FPGA Development

code fpga llm development

implementing an SPI controller in an FPGA and testing if it works with a logic analyzer before adding an actual Device

2026-02-13 By Gertjan Assies

Another approach to checked exceptions with the Result type

code java functional-programming exceptions

Replacing checked exceptions with a Result type for cleaner, more composable error handling in Java

2025-10-03 By Gertjan Assies

Rust on ESP32 part 2.5 - Switching software to Rust no_std and Embassy

code make rust embedded esp32 embassy

Rewriting the source code to better fit the ESP32 using no_std Rust and Embassy framework

2022-11-02 By Gertjan Assies

How to use AWS services from EKS with fine-grained access control

code aws eks oidc python boto3

bind service accounts to IAM roles to allow fine grained access control from k8s resources.

2022-09-18 By Gertjan Assies

All those online meetings - Part 3

make pico kicad fusion360 3dprint

In the previous two blogs, I explained the idea and execution of a small device that would allow me to mute/unmute audio/video and raise a hand in video calls with hangouts, zoom or teams.

2022-05-28 By Gertjan Assies

An Optional type in Go - an experiment

code go functional option experiment

This blog post is an thought experiment in how a functional programming concept could be implemented in the Go language.