Fomu

by Sutajio Kosagi

An FPGA board that fits inside your USB port

View all updates Jan 21, 2019

Fomu at Linux.conf.au 2019 This Week

Hi backers! As mentioned in the last update, Sean and Tim are at Linux.conf.au 2019 this week in Christchurch, NZ. Both uf us are giving talks, and we’ll post links to recordings and slides afterwards. Sean is giving a talk on the Tomu plastic case, including how it will be adapted for Fomu. Tim is giving a talk on Symbiflow and the open source FPGA toolchain that powers Fomu development. Read on to find out more!

Linux.conf.au 2019 is an open source conference centered around Linux, but includes open source hardware and generally cool things you can do with Linux. This year’s theme is Linux of Things, which meshes nicely with the embedded and open source nature of Fomu.

Plastic is Forever: Designing Tomu’s Injection-Molded Case

Sean’s talk will focus on designing open source plastic cases with open source tools. The original Tomu campaign had a stretch goal of including an injection molded case, which we met. This case turned out really nicely, and provided a good first experience for customers when their Tomus arrived in the mail. The Tomu case had some nice features such as snap hooks and finger grips. The talk at Linux.conf.au will go over the manufacturing process as well as the design process for the case.

With Fomu, the campaign mentions that “we will reuse most of the mold” from Tomu, but what does that mean exactly? What’s in an injection mold, and how exactly do you “reuse” most of it? The talk will have lots of pictures from the plastics factory, and take you through the process of injection molding. I’ll also point out bits that will be changed, to make the new case fit well with the new circuit board.

SymbiFlow - The next generation FOSS FPGA toolchain

Tim’s talk covers the new open source toolchain for FPGAs. He’ll go over SymbiFlow and the process of documenting the innards of various FPGA projects, and how the project aims to be the GCC of FPGAs. FPGAs can turn hardware problems into software problems, and the SymbiFlow toolchain lets you do this in an entirely open source way. This talk will cover the current status of the SymbiFlow project, and ways you can help improve it.

If you’re not able to make it to Linux.conf.au, fret not! All talks are recorded, and we’ll post an update with links to the talk recordings as soon as they go live. We’ll also include links to the slide decks themselves.

As a reminder, the Fomu campaign ends at the end of next week, at which point prices will go up! Keep spreading the word so we


$35,737 raised

of $10,000 goal

357% Funded! Order Below

Product Choices

$5

Buy us a Beer!

Thanks for helping make Fomu a reality! You will be rewarded with good karma and regular backer updates.


$45

Fomu for One

An FPGA for your USB port! Includes one pre-flashed Fomu and a plastic case. The price will increase once the campaign is over, so back us today!


$69

For Me, For You, Fomu

Projects are better with a friend. Or maybe you want to have a spare. Either way, you will receive two pre-flashed Fomu boards with plastic cases. This low price will increase after the campaign finishes!


$249

Fomu Ten-pack

Ten of our pre-flashed Fomu boards with plastic cases, each designed to fit into a single USB Type-A port. Bring FPGA development with you wherever you go, and share your RISC-V projects with up to nine other people.


$1,999

Fomu 100-pack

This is a lot of USB FPGAs. Perfect for a hackfest, conference, large classroom, or for someone with many, many friends. You will receive 100 pre-flashed Fomu boards with plastic cases.


$99

Fomu EVT Board ( + Fomu for One)

An EVT board revision is used to validate the schematic is correct, and to help develop the software. This EVT board is what we'll use to develop the USB stack and to make sure we've got the power and other hardware parts wired up right. An EVT board revision is used to validate the schematic is correct, and to help develop the software. This EVT board is what we'll use to develop the USB stack and to make sure we've got the power and other hardware parts wired up right. Designed to mount onto a Raspberry Pi to upload a bitstream and debug the CPU. This is a limited-time production board, and won't be produced after the campaign ends! Backers who select "Fomu EVT Board" will also receive one Fomu production board when they ship by 2019-06-30.

Credits

Sutajio Kosagi

Sutajio Ko-usagi supports and produces open hardware products designed by bunnie and xobs.


Sean Cross

Tim Ansell

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