Critical Path | A personal blog that contains stuff of interest to Hrvoje Butina. Deep dives into ASIC design & verification. And some shallow dives into the embedded and low-level development.

Jan 31, 2026

Building a custom RISC-V based SoC on FPGA - Part 1

5371 words • 22 min read • #PicoRV32 #System-on-Chip #FPGA #RISC-V

I built a custom RISC-V based SoC on FPGA as a base for the purpose of validating new IP designs in a real system. This is part one of two, covering architectural choices, digital design, and verification.
Dec 6, 2025

Using Notion to set things in motion

3549 words • 15 min read • #notion #goals #productivity

In this post I describe how I manage my projects - both hobby and commercial and the motivation behind it. I give a quick tour of my Scrum-like project management setup in a tool called Notion, and I also give step-by-step instructions on how to create a similar Notion layout.