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Open Hardware Leftovers

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Hardware
  • Open Source Processors for Next-Generation Storage Controllers

    So, the agenda for the presentation is introduction to storage controller SoC devices, explanation of the typical flash control implementations requirements for the embedded CPU cores. And then our RISC-V SweRV Cores roadmap. And we'll go through use cases, such as acceleration of legacy code, software and firmware toolchain support; multithreading; and IPC improvements. Ultra-low interrupt latency, and our small EL2 cores targeting hardware accelerators. So, typical storage controller SoC device, what it needs to do is to provide a familiar SATA, SAS or NVM Express interface to the host and actually manage the persistent media present in a device. But it could also be a magnetic media or some of the new media, such as phase-change memory or NVRAM. The requirements on a controller are, in any particular order, reliability because, obviously, storage customer expects the no loss of data and expects high reliability of storing the files; security, such as boot from our security features that guarantee that firmware is not compromised; and data rest protection, which encrypts data in real time; performance, in case of SSDs, consumers expect high IOPS, high data rates; and, finally, power because shift to mobile devices require saving or shaving every watt. And same as in the data center, there's no difference.

  • Zamir SUN: Notes for beginning with STM32 - English

    Two years ago, when I was working on my first Home Automation, I start to think that I should learn some embedded development. However I have been too busy (well, I know this is an execuse) and haven’t really do anything meanful till recently.

    So when one of my friends asking if I can provide some information about embedded development recently, I start to think about this seriously. At this point, although I don’t have any experience with embedded development, I am not really a total newbie in this area. Inspired by The Best and Worst MCU SDKs, I decide to find the answer by first define some criteria from a newbie perspective, just to make it useful for my friends. Warning, this article is VERY SUBJECTIVE!

  • Arduino Blog » This digital clock uses 24 Arduino-controlled analog faces

    After being inspired by a beautiful, if rather expensive timepiece, Ira Hart decided to make a 3D-printed clock with 24 analog faces that combine to form a single digital display. The overall device is controlled by a single Arduino Nano, which keeps track of the time using a RTC module. This unit coordinates 24 other Nanos on custom carrier boards, which in turn drive their own little clock face via a pair of steppers and a gear system.

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today's leftovers

     
  • What is Raspberry Pi 4 “Model B”? [Ed: I'm still waiting for them to formally apologise for going behind customers' backs, making secret deals with Microsoft to put Microsoft malware on all those devices]

    Raspberry Pi has conquered the world of SoC (System on a Chip). It has already garnered millions of followers since its release in 2012. Not only is it inexpensive, but it’s also versatile, modular, and multi-purpose. It has become popular not only as a credit-sized computer board but also as a controller in electronic, robotics, and IoT projects. The size, features, and price drive the popularity of the Pi, especially in the DIY community. To keep up with the current technological trends, the tiny board has undergone plenty of upgrades over the years, and there have been many varieties so it can cater to the needs and demands of its users. In 2019, the Raspberry Pi Foundation released the fourth generation of the multi-purpose board, the Raspberry Pi 4 B. It is the most powerful Pi to date, sporting huge upgrades from its predecessors. The compact board is touted to deliver a PC-level performance, and it didn’t disappoint.

  • Kentaro Hayashi: Grow your ideas for Debian Project

    There may be some "If it could be ..." ideas for Debian Project. If idea is concreate and worth to make things forward, it should make a proposal for Project Funding. [...] I'm not confident whether mechanism works, but Debian needs change.

  • Sam Thursfield: Calliope, slowly building steam

    There are some interesting complexities to this, and in 12 hours of hacking I didn’t solve them all. Firstly, Bandcamp artist and album names are not normalized. Some artist names have spurious “The”, some album names have “(EP)” or “(single)” appended, so they don’t match your tags. These details are of interest only to librarians, but how can software tell the difference? The simplest approach is use Musicbrainz, specifically cpe musicbrainz resolve-ids. By comparing ids where possible we get mostly good results. There are many albums not on Musicbrainz, though, which for now turn up as false positives. Resolving Musicbrainz IDs is a tricky process, too — how do we distinguish Multi-Love (album) from Multi-Love (single) if we only have an album name? If you want to try it out, great! It’s still aimed at hackers — you’ll have to install from source with Meson and probably fix some bugs along the way. Please share the fixes!

  • Neovide Is A Graphical Neovim Client Written In Rust

    Neovide is a really cool GUI client for Neovim. Although it essentially functions like Neovim in the terminal, Neovide does add some nice graphical improvements such as cursor animations and smooth scrolling. It even has me thinking about making it my new "vim" alias.

Linux 5.11.13, 5.10.29, 5.4.111, 4.19.186, 4.14.230, 4.9.266, and 4.4.266

Get involved with Mageia, become a Packager

With Mageia 8 just released and development for Mageia 9 getting underway in Cauldron, the unstable branch of Mageia, now is a great time to get involved with packaging. We are starting to look at the features that we want to include for Mageia 9, and as it is so early in the development cycle, now is the time for major developments, or big updates to key pieces of software. This is a great time to join the project as you can propose features you would like to see, help to implement large changes or see how a distribution evolves through development, stabilisation and then is released. If there is an application that you are interested in, if you want to help maintain part of the distribution, or if you want to learn something new, there are many opportunities to do so with the packaging team. Read more

Google does not want you to tell your players about your donation page

I recently updated Pixel Wheels banner image on Google Play. That triggered a review of the game: shortly after the update I received a message telling me Pixel Wheels was "not compliant with Google Play Policies". What nefarious activity does the game engage in? Sneak on users? Mine bitcoins? [...] Meanwhile you can still get the game from F-Droid or itch.io, since they do not have a problem with a link to a donation page. Read more