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Claude Codeを使って64ビットRISC-VのCPUコアを設計し1か月でFPGAボード上でのLinux起動に成功しました。アーキテクチャはRV64GCで、L1/L2キャッシュ、MMU、BTB、FPU、JTAG/cJTAGデバッガなどを備えています。詳しくは github.com/munetomo-maruyama…
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5 years ago, everyone and his grandmother did a RISC-V core for a FPGA.
Today I have the impression it is fashionable that everyone and his grandmother design a Vulcan compatible GPU for FPGA.
I am very fine with that. It might push forward openXC7, the open source Xilinx tools
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You can now book our humanoid cleaners on a recurring subscription, for up to 3 hours per cleaning at tau-robotics.com.
Video is first take, uncut, shown at 4× speed. See the reply for detailed footage at 1× speed.
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I made my own RAM! And it almost works!
If you think regular RAM is expensive, try PDP-11 memory. It's like $1000 per megabyte if you can find it.
So, I set out to make my own. With ChatGPT in hand, we got busy in the EasyEDA designer. I've done PCBs before, but nothing this complicated.
We got the schematic done, the PCB laid out, routed, and the Bill of Materials ready for production. With the FPGA code saved away, I ordered 5 of the boards to test.
I’ve never flashed an FPGA before, so I bought an FT232H and wired it up. I installed openFPGALoader and after a few false starts over compressed bitstreams, I managed to get it flashed. All new territory for me!
After a bunch of bench testing, I ultimately put it in a backplane with an M8190. And the good news is it shows up as both 4M of RAM and reserved space for the ROM. The bad news is that access to any ODD memory location fails. So I’ve got something that amazingly almost works end to end, but has a really fundamental problem.
So at this point, my RAM works, but only half as well as it should. I'll keep you up to date!
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It’s alive, the smallest ever arduino compatible board works. 10x10mm
Flashes over usb and everything.
Only had time to test flashing and leds for now.
More info at teapawt.org/pkuhar/status/21112660…
firefly.inteliwear.xyz
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8回路 緑色LEDアレイ モジュールキット
#秋月電子 akizukidenshi.com/catalog/g/…
部品点数や基板面積を抑えつつ、用途や信号種別に応じた色分けを実現できる、コンパクトなステータス表示用LEDアレイです。8個のRG
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You have a flexible sensor and need to reliably connect it to a PCB. Where do you start to choose the best connection method for your project?
Video Credit: Voltera.io
#engineering #technology #printedelectronics
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[新商品] SPI接続型ストレージエミュレータ KagigataDisk ¥2,500 ssci.to/11497 #ssci_new
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Learn ESP-IDF with ESP32: the beginner’s guide (eBook)
blog.adafruit.com/2026/10/28…
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FPGA development boards from the Kavrous Technologies shop
blog.adafruit.com/2026/10/28…
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There is something cool about building your FPGA for your iCE40, using @CircuitPython to program it via IcePython, and then watching your design just work. 😎
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Maxwell–Boltzmann distribution.
The air around you is full of tiny molecules, and at room temperature most of them move faster than the speed of sound.
They do not all move at the same speed. A few are slow, most cluster around a typical speed, and a rare few are extremely fast.
In 1860, James Clerk Maxwell worked out how these speeds are distributed. Ludwig Boltzmann later extended the idea.
Here 1,200 beads play the molecules. The faster a bead flies out, the farther it lands, so each slot collects beads of similar speed. Together, the piles trace the Maxwell–Boltzmann curve.
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One of the nice things about the FORGIX is that it is small and very portable, which means it can be used anywhere.
This project uses the web cam on a laptop and the FPGA to implement a Sobel filter on the image. It is a great example to show how we can create image processing filters.
hackster.io/adam-taylor/fpga…
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Battery-Free RoboBee Flies Using Only Sunlight in Historic First
by @sutoroveli_news
#Robotics #SolarPower #Innovation #Engineering #FutureTech