Mahesh Venkitachalam

Working on reviving the Humble iCE FPGA project...

Seven years ago, I designed a pair of FPGA based earrings for my wife. (Totally overkill for this application, I know.) She wore it out last night and it still works! Assembled by my pal @SivaPrakazh. You can read about the project here:

Before #AI acceleration became a priority, #FPGAs changed computing by making hardware reprogrammable after manufacturing. Now an @IEEEorg Milestone, they enabled faster innovation in #networking, modern AI systems, and beyond. Learn more at @IEEESpectrum: bit.ly/IEEESpectrum-F…

16 bajtů, opravdu šestnáct bajtů, má tohle zvukově obrazové demo s názvem Wake Up! prezentováno o víkendu na demopárty Outline 2026.

I love pretty much every pre-1990 computer ever made. But my favorite by a long shot is the Apollo AGC. This is my second time through this book.

@Benathon 5280

@mkvenkit How many LUTS?

Working on reviving the Humble iCE FPGA project...

@Elon_Orbit Plenty left, actually... Maybe enough for some basic filters.

@mkvenkit iCE40 pulling 6ch I2S into UAC1? Those LUTs must be screaming. I mean, any fabric left? Clean build.

Quite thrilled to get 6 channel I2S mic + audio on USB UAC1 working on iCE40 FPGA. Only possible because of work by Wang Xuan (link below) which Claude helped me modify. This mic array project is something I wanted to attempt for a long time...

@vrangan Thanks! Yes, HFOSC -> PLL -> 60 MHz

@mkvenkit Very cool project indeed! So you ran the ice40 at 60MHz?

Around 2021, I spent over a year trying to write an introductory book on FPGAs. Ultimately I had to abandon the project because of other commitments. I am now starting to publish projects that I worked on. Here's the first one:

Starting work on Papyr ESP32-C6 - a more compact design...

.@Raspberry_Pi Pico ePaper T/H display - works great, but sleep current is 4mA - it was < ~100 nA on breadboard, so something's off. Hardware is hard.🙂

"Urban Development" by Christophe Vorlet

I had to Frankenstein it, but it's a joy to see it working. 🙂 I needed a cap near VSYS - inrush current of pico was making the TPL5110 unstable, I think. Something I missed when testing with PPK2.

The day a blind man sees. The first thing he throws away is the stick that has helped him all his life

@hasanthesyrian Beautiful. What are the two uCs on top for?

Something came in today 🙂

The PCBs are here...