Last night I embarked on documenting the GPIO subsystem of the EcoNet EN751221. > How complicated can it be? 3 different kinds of GPIO subsystems: * Normal GPIOs (64) * 16 of which can trigger an interrupt * Serial GPIOs * GPIO that are actually on the wifi chip 2 hardware blinkers systems * First is simple and only supports GPIOs 0-15 * Second allows up to 8 custom blink patterns * For GPIOs 0-15 * And Serial GPIOS * And GPIOS 16-31 and 37-51, BUT no custom patterns So yes, apparently a GPIO system can be quite complicated...

EcoNet Linux

GPIO

My embedded research lab is basically done. I have space and switched 12v lines for 16 modems (I currently have 4 set up). Everything is on 3 amp fuses, but the power system is designed for about 40 amps which is the maximum the PSU can supply. I have 11 general purpose un-switched lines for permanent installations on the top shelf. Of those, only 4 are in active use: Freebox, PKT Mini (left of Freebox), PCEngines (top), and exhaust fan (not visible). The device immediately above the Freebox takes 19v and and two devices below take 230 AC. I'll be adding another PCEngines unit later but I need a 5.5x2.1->5.5x2.5 adapter for it. As you can see, I also have some unterminated wires at the top, I'm out of 5.5x2.1 barrel connectors. Each modem on the lower shelf is connected to an FTDI USB serial adapter, currently I have 1x 7-port hub but I will need 2 more before I am able to host 16 modems. USB is controlled by mommy.cjdns.pkt.gg (MoM = Master of Modems), the 19v device immediately above the Freebox. That one has numerous USB ports on the back (actually front) so it is a good fit for the purpose. The modems under test are based on the EcoNet SoC. I'm currently leading an initiative to add EcoNet support to Linux mainline:

Making sure you're not a bot!

so these modems are for R&D and will later be for automated testing of new kernel versions.

Welp, second try with GPIO and it's also a fail. This time I'm blaming the vendor because they claimed 3.3v was enough to switch their relay block and it is NOT. Even 5v doesn't do it, it takes 12v to switch the relays. I'm officially done playing EE, the point of this project was to be *easy*, so I just ordered a relay module that I can talk to via USB. https://www.aliexpress.com/item/1005001666938084.html

Lets start a company.

Somebody needs to make a GPIO relay board that has a socket for a glass fuse for each relay. You can't just run a 400 watt PSU to a bunch of 2 watt devices without fusing them.

Guys I gotta question: Is there ANYTHING out there that is a row of screws like this on one side, and on the other side is a row of plugs, for example 5.5mm barrel connectors, or 2-wire Phoenix Contact plugs, or anything, just that makes it possible to easily plug in a bunch of things.

Well, my first pull request to OpenWRT.

GitHub

Add new platform EN75xx and device SmartFiber XP8421-B by cjdelisle · Pull Request #17928 · openwrt/openwrt

EcoNet EN75xx is a big endian MIPS platform used in XPON (fiber), DSL, and SIM (3g/4g) applications. Complete GPL vender SDKs exist for this platfo...

If anybody's got connections with OpenWRT, please put in a good word for me.

The only thing that uses more processor than a clean openwrt compile is two clean openwrt compiles. Also don't say gentoo, gentoo isn't real.

Couldn't we do shoddy-multiprocessing where you just take a bunch of computers, connect them all to a common filesystem, and then just treat them all like NUMA nodes ?

This USAID thing is kind of like the "opening of the archives" post fall of the USSR.

How's it going ?

Linux Desktop Question: I currently use a Mac, but I'm thinking my next machine might be a desktop. There's no way I'm gonna use Windows so that means Linux. I'd like Distro recommendations. My applications: 1. Brave 2. Thunderbird 3. VSCode 4. Libreoffice 5. Terminal 6. CPU & Memory meters in the top bar My requirements: NO BUGS, absolutely not one single bug. I will move heaven and earth to get the thing setup right, but I will not tolerate one single screw-up, no apt-get dependency conflict fuckery, nothing. I'm open to minimalistic UIs like XFCE or LXDE if they can deliver no bugs. I need control+tab and control+tilda for switching windows. Any recommendations?

Sam Hyde is dragging on Elon

X (formerly Twitter)

Sam Hyde 🇺🇸 (@wigger) on X

Dear Elon:

Please post a bit more positive, beautiful or informative content on this platform

Apparently President Elon is actually a thing.

White and Native American men are the most liked. Asian, Indian, Mexican, and Middle Eastern women don't like their own kind.