349: Open Down to the Transistor
Embedded23 Loka 2020

349: Open Down to the Transistor

Drew Fustini (@pdp7) spoke with us about building Linux, RISC-V cores, and many other things. Links, so many links!

Drew is a board member of the BeagleBoard.org Foundation and of the Open Source Hardware Association (OSHWA.org). He is an open source hardware designer at OSHPark (he recommends their blog!). He writes a monthly column for Hackspace Magazine, for example The Rise of the FPGA in Issue 26 and Intro to RISC-V.

Yocto is a tool to help build a Linux distribution specific to your board and application! Bootlin offers free training material for Yocto and OpenEmbedded (as well as many other things such as Embedded Linux and Linux kernel development). Or there is a video: Buildroot vs Yocto: Differences for Your Daily Job - Luca Ceresoli at Embedded Linux Conference. Or look at Embedded Apprentice Linux Engineer (e-ale.org). Or maybe another video: "Yocto Project Dev Day Virtual 2020 #3: Yocto Project Kernel Lab, Hands-On, Part 1" by Trevor Woerner.

RISC-V is an open source processor core. Well, cores. But you can try them out in hardware even if you don't want to play with an FPGA. The SiSpeed Longan Nano has a GigaDevices microcontroller dev board (with an OLED on board!, more info).

Did you know you can run Linux on RISC-V? The cheapest method is emulation and Renode is brilliant for that. Here is Drew using it on the train (twitter). Sipeed boards with Kendryte K210 start at only $13 and can even run Linux (tutorial). There are also affordable open hardware FPGA with free software toolchain support like the ICE40 based Icebreaker and Fomu. For a bit more money, the bigger ECP5 can run Linux. Or look at Greg Davill's wonderful Orange Crab. For a lot more money but on silicon, the Icicle with Microchip PolarFire SoC is aimed at corporate use.

Or you can produce your own physical chips. For free (for a limited time). See the talk from Tim Ansell - Skywater PDK: Fully open source manufacturable PDK for a 130nm process

Drew attends a lot of conferences, here are highlights from the past:

Here are some future conferences he's planning to attend:

Jaksot(569)

474: It's All Chaos and Horror

474: It's All Chaos and Horror

Logic gates and origami? Professor Inna Zakharevich joined us to talk about Turing complete origami crease patterns. We started talking about Turing completeness which led to a Conway's Game of Life-...

5 Huhti 20241h 11min

473: Math Is Not the Answer

473: Math Is Not the Answer

Philip Koopman joined us to talk about how modulo 255 vs 256 makes a huge difference in checksum error detection, how to get the most out of your checksum or CRC, and why understanding how they work i...

21 Maalis 20241h 10min

472: Field of Boxes

472: Field of Boxes

Making Embedded Systems, 2nd Edition came out today! Chris and Elecia talk about the changes, the writing, but not the eldritch horror. Then we talk about pianos and origami. The electronic version i...

7 Maalis 20241h 2min

471: Bicycle Built For Two

471: Bicycle Built For Two

Where electronics meets music, there is a board called Daisy. Created by ElectroSmith, Andrew Ikenberry, the goal of the board is to teach computers to sing. Andrew joined us to talk about music, audi...

22 Helmi 202458min

470: Upping the Chaos Level

470: Upping the Chaos Level

Helen Leigh joined us to talk about putting together conferences (including Teardown 2024), indie hardware producers (including via Crowd Supply), and building communities. Teardown will be June 21-23...

9 Helmi 20241h 16min

469: Saving the World Is Not a Hobby

469: Saving the World Is Not a Hobby

Chris and Elecia chat with each other about motor encoder reading methods, conferences coming up, soldering irons, schematic reviews, looking for a new job, and general life. Some conferences coming ...

28 Tammi 20241h 4min

468: Designed to Kill All Humans

468: Designed to Kill All Humans

Anders Nielsen joined us to talk about why the 6502 is the best processor. Anders also sells 65uino kits on his store: imania.dk. For more explanation of what they are, how they work, attaching perip...

12 Tammi 202456min

467: Temporary Axolotl

467: Temporary Axolotl

Chris and Elecia talk about cars, fleeting moments of fame, their year, and the sorry state of tools in the embedded space. Chris became internet famous for asking a car dealership's chatbot (powered ...

29 Joulu 202352min

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