🌘 利用 iCE40 FPGA 實現有趣的 SPI 路由
➤ Fomu 開發板上的 SPI 路由與韌體重置技巧
https://danielmangum.com/posts/spi-routing-ice40-fpga/
本文深入探討如何在 Lattice iCE40 FPGA 上實現 SPI 路由,特別是以 Fomu 開發板為例。作者詳細解釋了 Fomu 如何在不包含實體 USB 硬體的情況下,透過 RTL 實作 USB 核心,並將其整合到 Foboot 載入程式中。文章也闡述了 iCE40 FPGA 的配置選項,包括直接寫入 SRAM、從外部 SPI Flash 讀取,或是一次性編程 NVCM。作者藉由分析 Fomu 的電路圖,揭示了即使只有一個 SPI Chip Select (CS) 訊號,也能夠同時處理 FPGA 作為主機(讀取 Flash)和從機(被外部程式設計),以及如何透過重設 FPGA 的 CRESET 訊號,在 FPGA 處於重設狀態時,得以安全地對外部 SPI Flash 進行程式設計,進而實現對
#FPGA #iCE40 #SPI #Fomu #韌體開發
Interesting SPI Routing with iCE40 FPGAs

A few weeks ago I posted about how much fun I was having with the Fomu FPGA development board while travelling. This project from Tim ‘mithro’ Ansell and Sean ‘xobs’ Cross is not new, but remains a favorite of mine because of how portable it is — the entire board can fit in your USB port! The Fomu includes a Lattice Semiconductor iCE40 UltraPlus 5K, which has been a popular FPGA option over the past few years due to the reverse engineered bitstream format and ability to program it with a fully open source toolchain (see updated repository here).

FOMU, fotomuseum Antwerpen
#voyage2510 #anvers #antwerpen #fotomuseum #FOMU

Mist. Das #FestivalOudeMuziekUtrecht hat ein viel zu tolles Programm. Und ich kann nicht hin. Dabei werde ich zu dem Zeitpunkt sogar in der Nähe sein. #FOMU

https://oudemuziek.nl/festival/festival-2025-museumkunst/

Festival 2025 - Museumkunst?

Ook de moeite in #FOMU de door #KatjaMater gecureerde selectie uit de collectie van het museum, getiteld 'No longer, not yet'. De scenografie is voorbeeldig.

Oa te zien, een diareeks die Belgisch #Cobra-kunstenaar #PierreAlechinsky aan het werk toont.

Fantastische tentoonstelling in #FOMU #antwerpen over #LeeMiller (VS 1907 - VK 1977): model, modefotografe, persfotografe, oorlogsfotografe.

1) Miller die zichzelf portretteert na de Bevrijding in het bad in Hitlers appartement in München.
2) 'Silent Remington', tijdens de blitzkrieg in London
3) en 4) haar werk 'Portrait of Space' (Egypte, 1937) staat model voor Magrittes 'Le baiser' (1938)

Fomu's just a lil bean

(took another look at my sketch and fixed the coloring)

#Fomu #Temtem

I have two fomu[0], zero ideas, enough ignorance about fpga and a dumb brain. So if someone can give any idea with regards to what I could make/build with this, I'm all ears and it'll be much appreciated.

[0] http://tomu.im/fomu.html

PS: I have already gone through the workshop content they have.

#fomu #fpga

Fomu - An FPGA which fits in your USB port.

tomu.im website

I’m Tomu - A tiny ARM microprocessor which fits in your USB port.
Mooi werk in Fotomuseum Antwerpen #fomu
Ich glaube, ich habe meine Urlaubstermine genial geplant. Eine Woche fällt perfekt ins Festival Oude Muziek #Utrecht. Jetzt muss ich nur noch meinen Freund davon überzeugen, dass wir zwei Monate nach dem Strandurlaub wieder nach Holland fahren wollen. 🙈 #FOMU

Thanks to @johndmcmaster for the evening of socializing. I was happy to meet some new peeps and catch up with previous acquaintances. I am now smoky flavored.

But also @mithro for tossing a #fomu for kicking off some weekend learning.