Previous thread:>>2862495Here we discuss microcontrollers (MCUs), single board computers (SBCs), and their accessories, such as Atmel mega and tiny AVRs (Arduinos), PICs, ARM boards such as blue/black pill STM32, ESP8266/32s, RP2040, Raspberry Pi, and others.For general electronics questions (power supplies, level shifting, motor driving, etc.) please ask /ohm/.>where can I find verified quality microcontrollers and other electronic sensors or partsdigikey.commouser.comarrow.comnewark.com>but that's too expensivealiexpress.com (many parts here are fake, particularly specific parts out of stock in the above sites)lcsc.com>I need a part that does X and Y, with Z specifications. How can I find it?use DigiKey's or Octopart's parametric part search. Then purchase from one of the sellers listed above.>how do I get started with microcontrollers, where should I start?There is no defined starting point, grab a book and start reading or buy an arduino off ebay/amazon and start messing around. There are a plethora of examples online to get started.>resources:https://github.com/kitspace/awesome-electronics>RISC-V microcontroller list:https://codeberg.org/20-100/Awesome_RISC-V/raw/branch/master/RISC-V_MCU_development_boards.pdf
>>2880131love how they trimmed the value of the current shunt by mauling it with sidecutters
>>2880249Wait, why doesn't the device on the left need a shunt?
>>2880266that's the newer one (uses AAAs instead of a 9V), it probably uses a pcb trace of approximately known resistance instead
>>2880249> mauled shuntMarketing can call that a laser-trimmed resistor.The beand of sidecutters is called “laser” like thise knifes from wallmart.Sometimes you see the opposite, the put blobs of solder on it to bring the value down rather than up.
>>2880266>>2880301pair of smt resistors from the 10A terminal to the COM terminal, no attempt at trimming, no fucks given
>>2880335I guess it was kinda obvious.Do these weird wheel-like traces on the right one act as last resort fuse?
>>2880335They may have chosen the first resistor, measured it, then put the second resistor in. Or done parts binning. Or just corrected for it in firmware. Screw tempco.>>2880340No I think those are thermal reliefs, but with more spokes for lower resistance.
>>2880359>No I think those are thermal reliefs, but with more spokes for lower resistanceno, niggerit says hfe - and what has hfe?transistors - and how do they connect?female transistor socketsguys will ''bone' but girls will ''socket''
>>2880402He said star-shaped traces, looks like the traces surrounding the current shunt solder joint to me. The hFE plug doesn’t have star-shaped traces, but star-shaped holes.
I was wondering, is it worth to put a reclamed LiIon battery and the circuit in one of these, or will it be even worse than with batteries?>>2880340Not last resort fuse.It's thermal bridging.That way you don't have to heat your whole copper ground plane when you want to solder the "resistor".
>>2880510Depends on the unit and what power it can take. 2.5-4.2V is too low for one designed to run at 9V, but too high for one designed to run at 3V. If the 3V one can handle 4.2V, then no problem, otherwise you could do so using an ultra-low-dropout regulator. The 9V one probably already has a linear regulator circuit, but I doubt it would run down to 3.2V or lower.It’s definitely not worth doing though, these meters are worth less than $5.
>>2880530Yeah I know I bought the 3.3V one for less than $5.But I have Li cells that I don't use a some pcb with cell protection, cell charging and step up/down all in one. So, I can just tune it to ~3.3V and never have to buy batteries again.Also, are these circuits known to have a serial output? I know some older ones had...
>>2880539>So, I can just tune it to ~3.3V and never have to buy batteries again.Why not. The only problem might be noise from the switching converter's output, not that you'd notice. And you'd likely want a seperate power switch.>serial outputDo you have an example? That sounds cool.
>>2880539batteries need more voltage than rated to charge
>>2880678The charge/boost/protection boards just use USB for charging. Probably a TP4056.
>>2880661>NoiseWep, I will think about that. but nothing a capacitor and a coil couldn't filter indeed.And you are correct too, with the speed of reading of those multimeters, it won't be a proble either I think.>Serial portI had one with an IrDa port outputing serial data. I used it once or twice thith the good software to graph temperature (it had direct temperature reading from probe).Some other have a direct connector (so no isolation):https://www.forward.com.au/pfod/pfodDataLogging/highAccuracyDataLogging.html>>2880678It's okay, the LiIon battery will be charging by USB. And I can tune the buck convertor to 3.3V or whatever I want to simulate new AA batteries.
>>2880868Actually my Hioki DMM has an infrared socket on the back, it’s intended for use with their clamp meter addon but my meter doesn’t have that capability so it’s got to be used by something else. I should 3D print a fitting to slot into the receptacle with an IR LED and phototransistor held in place.Funny how this thread is most active when it’s not talking about microcontrollers. I’ll be sure to pick a less stimulating OP pic next time.
>>2880872> not talking about microcontrollersI like to think of the chips used in DMMs as special-purpose microcontrollers.
>>2880881That is why I posted it, but most of the discussion about the surrounding circuitry (current sense resistor, thermal vias, battery conversion) would be better suited to /ohm/.
If you had resources to create anything (that is an electronic device with a MCU), what would you create?
>>2880335Kek
How do i make a midi keyboard from a dinky toy with arduino/raspberry pi pico that isn't too complicated
>>2881230I'd check out oskitone@github, I know he has some synth with a mcu, perhaps the one called Scout
>>2881195Probably more of an FPGA thing, but a tacticool ball full of sensors. Mainly visible and thermal cameras, microphones, and a wide-band SDR. You throw a bunch about the place, and they'd communicate back to a base station via laser comms or some shit. With them you can build up a 3D model of the environment, and create a dynamic map of heat, sound, and RF sources via triangulation. This information is processed by a centralised computer and fed from the navigator's nearby station to an overlay on the operator's AR headset. For airsoft, of course.
>>2881195I'd do air quality, noise, traffic flow/speed at intersections. The signal timings in my city are deliberately wasteful, and if I had data to back it up it would be easier to change.
>got my ch32v003 blinkingwelp, guess i'm using vscopium and platformio now
>>2881360What's next?
>>2881396Getting comfortable with the hardware enough to ditch AVRs. Then I'll get to using them for all sorts of shit, like CAN comms and motor driving, maybe a digital CC/CV benchtop PSU. The chips are cheap and in supply at LCSC, so I can order boards from JLC with them pre-soldered. Maybe pre-programmed too, if I try hard enough.Oh and getting a RISC-V t-shirt.
Hi /mcg/,Any ideas on how I should drill accurate holes for a pi pico in my self etched pcb?
>>2881406wait shit now i gotta learn pointersand dmaand connect to the hive mind in order to know what bitmasks i need for each register
>>2880131What's the difference between GND and DGND? I'm fidgering replacing a damaged front panel from a audio car head unit, but the pines are not exactly the same.I'm guessing is ground and digital ground, but after all digital ground isn't just a reference that can be whatever (not 0,5 V, just a reference for your system)?Is this related to CMOS/TTL/FET logic?Thanks
When there's AGND and DGND, that's to keep the different grounds separate so that noise doesn't cross between them. They only meet near the power supply. Usually it's to keep the analog ground clean so you don't hear a bunch of digital trash in your speakers.
>>2882113As the other anon said, the GND and DGND are almost certainly connected together at something like a star grounding point. Though there’s a small possibility they have an isolated voltage converter, which helps you not fry your phone when you plug it in to charge and plug in the aux cable at the same time. They may also have a choke or other noise filtration circuit between the rails.Also the DGND might not be in contrast to AGND, but PWRGND.
This is driving me crazy. So I am trying to get Serial.Monitor working for an attiny85. Unfortunately, I only have an Arduino Uno right now and I am using this to flash the ATtiny. The baud rate is set to 9600 in both Serial.Begin and Platformio.ini but holy fucking shit, all I get is garbled text and this is driving me nuts and I've been troubleshooting for like four fucking hours
>>2881460You don't need to drill holes. Either solder the dev board on directly or use a smd socket.
A box of DIP sockets is probably cheaper, but it's more work to cut the rows apart and bend the wires 90°.
>>2882114>>2882136Thanks I have learned a lot today, I really appreciate it anons!
>>2882175The problem with SMD headers is you need to align them before soldering. I bought an RGBduino before (pic related) and I beilve they needed to use SMD components everywhere because the colour silkscreen looks to have been applied after soldering. Despite it being in the Uno form-factor, shields don't fit on it because the socket headers are misaligned.
I'd like to learn how to make an LED blink. How do I do this without involving an operating system on the chip or a chip that interprets a simplified programming language? I'd be willing to flash chips with a SOIC clip just to never have to look at an IDE.
>>2882216Which pcb makers let me print nice designs?
>>2882746https://jlcpcb.com/resources/multicolor-silkscreen-pcb?from=ccm&spm=Jlcpcb.Homepage.1019
>>2882747Oh, neat. So does stuff like this sell better? Like a marketing gimmick?
>>2882756It's really new (<6months), so i don't know yet.Well, when I mean it's new, I mean for "click and order" services.You could add UV printing to white selkscreen PCB since ages (and that's what >>2882216 RGBDuino did with the duck version and the chick version).
>>2882802Wow, I can see how out of alignment those headers are. Normally it doesn't matter because without that Ardunio retardation you would only be hooking up to one of them at a time. Getting four of those aligned with simple pick-n-place has to be nearly impossible.Also, obligatory hate for the asshole who decided that there should be a +0.5" spacing between those headers so you can't breadboard it.
>>2882802You could probably de solder them all and stick them on some daughterboard you have then flip it back over and solder them back in place. The pads are probably within spec to make the lineup, they just moved while bumping down the line to be heated up
Can you guys help me pick out a MEGA2560 board from AliExpress? I have Java programming experience and want to get into hardware/low level stuff with C/C++, and eventually into ESP32 chips, but I want to get my start with a MEGA2560 and a sensor kits first. There's a bunch of MEGA2560 variants like the CH340, CH340G (just found out it's micro usb), ATmega16U2, ATmega8U2-AU. Can anyone tell me which type of board version I should be looking for because I read that some have restrictions or require some sort of different USB driver, is the one that requires a different driver better or worse? I'm not looking to do any wifi/bluetooth stuff, just mess around with sensors before moving up to ESP32. I've googled a lot, but the information seems to be scattered everywhere and it doesn't help that every time I google a variant, I find out that there's yet another variant of said variant on aliexpress. Can anyone help me make sense of all of these different variants, the MEGA2560 PRO, MEGA2560 CH340, etc?
>>2882802look at all that wasted spacedo people even use shields? i only ever see art school dropouts use an ugly mess dupont connectors to connect whatever 'single component on a pcb' sparkfun/adafruit modules they are told they need by the makezine article they are copying.
>>2882970Is this who I should market towards? Idiots?
>>2882729Chinese Uno clone, avr-gcc, and avrdude.>>2882946CH340 is usually cheapest and works fine on Linux and I imagine Windows too at this point. The pro variants are compact which you probably don't want if you're just experimenting.
>>2882970>art school dropoutsNot that Anon, but I'm an art school dropout, and I just solder every single component directly onto perfboards because I've had too many bad experiences with Arduino shields that either had burnt ICs or required the use of poorly documented libraries.
which 'duino has the hottest anime girl on it?
Does anyone know how to access gpio using C on pi3 running on debian? I'm not using gay shit like python or bloated distro like raspbian.
>>2880131I turn them into soulless hardware tokens:https://github.com/ran-sama/stm32-gnuk-usb-smartcardhttps://github.com/ran-sama?tab=repositories&q=esp&type=&language=&sort=name
>>2883259>Does anyone know how to access gpio using CFucking kids don't know how to google shit anymore?One way you can do it is using the fake files of the /sys directory to write 1s and 0s.https://www.ics.com/blog/gpio-programming-using-sysfs-interfaceThen I found this, which disturbs me, because I think the stuff at my work has been using the sysfs interface to do gpio. (not on a pi) But I just got our stuff running 6.12.4, so it's still not gone.It's not the fastest way to do gpio, you're not going to blink an LED real fast, but you can turn shit on and off. And you can symlink the gpio device to some temp directory during startup and not have to care where it goes in your code.https://www.thegoodpenguin.co.uk/blog/stop-using-sys-class-gpio-its-deprecated/
Arduino is so based
>>2883299You're a saint. Thanks.
>>2882160you've set the baud rate on the chip, but have you set the baud rate on your host COM port receiver?
>>2882114i thought split ground planes was an old wives tale? theres a guy on youtube called rick hartley saying that its all bullshit.https://www.youtube.com/watch?v=vALt6Sd9vlY
>>2883310ah nevermind he does make a case for split ground planes at 15:40
>>2883270>https://github.com/ran-sama/stm32-gnuk-usb-smartcardi don't understand the use case for this. is it just to prove what's possible?
>>2883312What's to get?It's a diy poor man's yubikey.
out of interest, has anyone gotten a fully assembled PCB from jlcpcb? how was it?
>>2883449I’be done it before, it’s good. Unlike other providers, JLC take directly from the LCSC warehouse. Any part on there you can get assembled, but I’d strongly recommend SMD parts only. THT soldering is expensive. You just find the LCSC/JLCPCB part number and put that in its own column on your BOM. There’s “Basic” and “Preferred Extended” parts that don’t have an additional handling fee, so use those where you can (passives, diodes, signal transistors) but the handling fee isn’t much.I use the JLC Assembly addon for KiCAD, it does all the work for you besides making that column, though it’s technically easier with EasyEDA. Also the SOT-223 footprint from KiCAD is offset, so make sure to correct that in the JLC placement overview.If you’ve got a project that needs chips in awful LGA packages or similar, definitely consider getting the chinks to do it for you. While stencils seem cheap, they’re big and push your shipping costs up significantly, so it’s likely cheaper getting boards assembled for you instead of going for a stencil unless you’re doing large numbers or already have the expensive ICs.
I need advice. I was trying to get an TFT display talking with an arduino nano. I can flash the nano with no errors, I spent hours and couldn't figure out why nothing was displaying on the display. I then decided to use a backup nano with the same code and the display displays the content just fine. I have no idea wtf was wrong with the first one, but the Power LED is red compared to the second one which is green and at this point I'm not entirely sure if it is a sign of some sort of component damage or what. Does anyone have any idea wtf is wrong with the first arduino nano and if it is worth trying to salvage it by soldering in another component (I'm also starting to run low on these nanos as I've blown like two last week)
>>2883833Could be a fake nano with a different chip, I think I’ve also heard of them getting some pins flipped around (probably 10 and 11 because they’re retarded).Write some idiot-check programs, like one that turns all pins high so you can be sure they’re all working. You can also try using AVRdude with an Arduino as ISP to read back their ID and fuses to ensure they’re all good. There might be programs out there to determine whether it’s fake or not, like that STM32 blinky program.
I need to make a custom PCB, this is also my first board.>needs to be ON for 10ms and OFF for 10ms>needs to be a clean wave>needs to be adjustable 1V-5V DC, (Amp adjustment is made analoge for more clean wave).I just made a circuit in a simulator and it looks like this will work?Is this this right way forward or is there a better way?Any tips are greatly appreciated, thanks.
>>2884262What's the deal with tying out to trigger like that?
>>2884291I don't know I saw it like that on a picture on google and recreated it.Is it not correct? or is this sub-optimal and there's a better way?
>>2884262This is an /ohm/ questionIt looks like your duty cycle isn't really 50%, I think you should be able to get rid of that 2M resistor.Keep in mind that 555 timers in real life don't output 5V from a 5V supply, it's closer to 3V, so that will shift your timing somewhat. Best to test it on a breadboard.
>>2884329> this is an /ohm/ questionmaking a clock for a 8051
>>2884329Thanks, the voltage isn't really a problem since I will measure the output and raise the input until I get 5v.>shift your timing somewhatDoesn't matter as long it's 10ms ON and OFF.>>2884412not really but close
>>2884613>Doesn't matter as long it's 10ms ON and OFF.The point is your frequency will change as the output voltage changes with respect to the input voltage. This is why conventional 555 circuits use the discharge pin instead of the output pin, it ensures the output frequency is independant of supply voltage. So any resistor values you determine via simulation likely won't be correct when you actually put them on a breadboard. Might also change the duty-cycle but probably not by much. What are your duty-cycle and frequency tolerances? 1%?
UARTing for the first time on a piece of hardware. slammming my head against my desk because the device keeps rebooting.realized i had tx connected to tx and rx on rx=(
Am i using the wrong UART interface?I'm trying to UART into a banana pi r3 using minicom and the serial interface below.i am getting good communication with the board but it reboots after ~50 seconds of uptime whenever the UART is connected. if i boot it without the UART connection it stays on.https://www.pcm-cable.com/serial-cable/usb-to-rs232-cable/usb-to-rs232-485-422-4-in-1-serial-cable-with.htmlserial log in this post, but can't make much sense of it. >>>/g/103704127
>>2884752nm, rolled it back to an older release and working fine.
Does anyone know of a table that compares microcontrollers from a whole bunch of different families? I can find them for PICs and AVRs, but not many manufacturers make these, and nobody seems to have made a table comparing multiple brands. Unless there's some github repo I'm missing somewhere.
i've spent the last several days trying to get this stupid fucking nucleo board enumerated as a stupid fucking usb HID and it hasn't worked once. all of the demo projects dont do shit. fuck usb
>>2885388oh the onboard usb connector goes to the stlink processor and not the main MCU's usb d+/-, that's probably why this isnt working
>>2885397yeah you have to use the right port lelno confusion with a blue pill, you have to provide your own stlink
Why does pi os have so many ways to run a python script after startup and yet most don't actually work
Are SK6812 RGBW LEDs suitable for a bedside reading light, light-quality wise? Am I in the wrong thread? What is the simplest arduino clone these days (ESP32)?
>>2885649The white might be, I don’t think CRI matters much for paper, maybe you can find CRI in the datasheet. But it’s a bit pointless to go for RGB and addressability in the first place.If you’re programming via the arduino IDE anyhow, there’s not much difference between using an old AVR-based board compared to anything else sufficiently supported, like ESP32 is.
>>2885560Running python on a rasberry pi basically turns it into an arduino-class compute node.
Is there a reasonably small micro controller I can use to process analog video? I've seen people do good stuff with esp32, but they alway use the ESP32Cam and the dedicated digital camera. I'd need it to process b&w analog video , and to control servos based on that. Really just a contrast tracker. I can already sort of do that on my pc with a bunch of stolen and GPT'D code, so the next step is making the setup portable.
Here's a question. Has anyone ever used an attiny85 to drive addressable LEDs like the WS2812B or the SK6812 without an external clock before? I tried this, but even with the internal fuses set to 8MHz I just can't get the attiny to drive the LEDs. I see something in the o-scope that kinda looks like a pulse train, but it is so distorted that it almost looks like noise if it weren't for the fact that the signal is high at 5V. The code should work (as I've tested it out with the nano and the LED does light up...and about the only thing I can think of is the library I am using (Adafruit Neopixel). Is there another library I should be using (because there seems to be quite a few for these addressable LEDs) or is there something else I am missing?
>>2886544Ok. I kinda figured it out. But I still don't get it. Everything works fine if I upload and flash the chip with the Arduino IDE, but the LEDs don't light up if I flash the Tiny with platformio. This is a build issue which is fucking stupid
Thought on tinygo for the Arduino Uno?https://tinygo.org
>>2886537If I recall, CNLohr did a video on analog video timing via the ESP32's audio PLL. Keep in mind that he's a bit of a firmware wizard, so adapting his code to suit your project may be impossible without indepth knowledge (i.e. not being a gpt babby).Is this a /rcg/ related question? I wonder if there might be existing solutions that read data out of the analog video stream to an fpv headset. Be it for datalogging of the standard voltage and other visible readouts, or some sort of compressed data.>>2887166I'm not a /g/tard so I'm not familiar with all these meme programming languages. I was of the impression that C compiled pretty efficiently down to assembly language, which is important for embedded applications where efficiency matters.Also it's HAL based so ew. Writing registers via bitmasks is the way to go, according to my /mcg/tard meme practices.
Any anons know of a book or series that would get me from basic electronics to fairly complicated robotics? Shit like being able to build my own Roomba or do other home automation would be really fun.
>>2887216You're correct, but Go is like C on easy mode, maybe explicitly intended as such. One of its creators was Ken Thompson. It would be easier to write something complex in it, at least for me, if it actually works in embedded applications to begin with
>>2887242Go has a heavy run-time with garbage collection, so it's much worse for embedded than C.
>>2887242> K.T.Ken had more to do with it before the Plan 9 C compiler was hacked into the ‘go’ compiler it is today, and acknowledged because they didn’t want to be accused of intellectual theft, and, later on, benefited from the name dropping.Go (now called golang because… well, go was an unfathomably stupid name, even 2000 years ago, especially in china) and other similar languages are best used with microcontrollers by extracting the compiled assembly and pasting it into your microcontroller assembly source code, avoiding any heap or garbage collection nonsense.java, and python remain completely unsuitable for any purpose whatsoever.
>>2887280Java embedded edition literally runs on small devices like smart cards. Micropython is popular, though I don't know what anyone is using it for.
>>2887592> literally runs on small devices32 MB of ram, or even 8MB isn’t really small.I’d consider 128 bytes ‘small’ and 4K ‘midrange’ for a MCU, but I’m guessing we’re living in ‘all the world is a gaming PC’ times
>>2887677I suppose they're really bloated now. I don't know what the first java embedded versions needed.
so i got a sensor hooked up to the spi pins on a pico 2 whow do i uhhh, read from it?
>>2887812>Option A:Include a library designed for that sensor on that MCU and just call its functions.>Option B:Include a simple SPI function library (e.g. wire.h or whatever), then read the sensor IC's datasheet to figure out how to talk to it and what addresses to request data from.>Option C:Read the datasheet of the MCU to figure out what registers to set to what values in order to configure and use the built-in SPI hardware, then read the sensor IC's datasheet like you would for option B. This may not be an option for python.This is assuming you have power and ground hooked up to the sensor too, and satisfy any other conditions for the sensor board, and know how to write code to the MCU.
>>2887812Find an example for the sensor, port it to your environment, once it works rewrite the without doubt extremely awful sample code so it's a 10th of the size and 3 times faster.
>>2880131What's the easiest way to have a Jetson Nano talk to an Arduino. It has to be fast. Like <20Hz.It can be wired.
>>2887920Easiest way is UART. Just make sure your voltage levels are compatible, and that you’ve tied RX to TX and TX to RX. Should be able to do 2Mbaud. Faster than that and you’ll need to use SPI (not sure if an AVR arduino board can do SPI slave), for faster still you could try bit-banging 8 parallel GPIOs via full port-reads and port-writes.What do you mean by <20Hz? 20Hz is really slow, and the < sign means something slower than 20Hz.
>>2888023> <20HzTrain a hamster to listen to kazoo blown by the jetson’s fan when it ramps up, and it pushes a button with its nose attached to the arduino which also gives it a food pellet. Use morse code.And ECC.Bonus: it’s wireless and eco-friendly.
Just saw this, apparently the RP2350 security has been defeated.https://www.youtube.com/watch?v=I98QutkJPgAhttps://github.com/aedancullen/hacking-the-rp2350The part of the die that reads the initial fuses is partially susceptible to glitching, which through multiple levels of sheer dumb luck, unfortunately lets it start in a configuration that has debugging active.
>>2888134I don't think this is impactful, since I doubt anyone uses these chips for anything serious, and storing valuable credentials in hardware is a stupid idea even if you assume the hardware isn't hackable. It's only a vulnerability for hardware hackers, i.e. people who have possession of the thing they're hacking, i.e. people not committing a crime. If you could remotely backdoor someone's wifi network via an RP2350 it would be worth caring about.
>>2888134Rp2350 is a pretty good chip despite the profoundly stupid risc-v architecture. Maybe the’re loosing money on it like the ESP32.Anyone that stores unencrypted stuff in secure enclaves/otp areas is just asking for trouble.I’m not a conspiracy theorist that is going to postulate government mandated back-doors, but just note that it’s almost impossible to buy a retail lock that the “lock picking lawyer” can’t get into in 30 seconds.
>>2888450>profoundly stupid risc-v architectureI'll prefer it over the mind numbingly retarded ARM architecture or whatever shit ESP32 is based on.
>>2888450>Rp2350 is a pretty good chip despite the profoundly stupid risc-v architecture.Good thing that it's actually got an ARM architecture then.
is it possible to move secure handshakes of nfc stuff or secure keys like iLoq further away from the reader with another radio layer in between? what are the likely issues I will encounter trying to encapsulate some sort of cryptographic handshake through another layer? in a nutshell I'm wondering if I can make a dumb radio layer that'll just forward the messages between the nfc tag/key and the reader.
Need 4k 30FPS in, through OpenCV motion detection, out to a big screen. Preferrably on Pi, what do?Looked into Coral USB "accelerator", don't really understand. Looks like GPUs dont work with Pi. Looked at things like PixyCam which run some pre-built models. Looks like they can just work in their default image detection mode, without the ability to draw on the output.
>>2888450name a better FOS instruction set CPU>inb4 just used a closed nonfree proprietary botnet isa
>>2889931I might be misremembering, but I think Hitachi’s Super-H is open now? Not that there’s more than one company making chips for them though.
>>2889962Yes, most super-h patents expired.But, ARM stole the thumb instruction set from SH, because the original ARM instruction set was this wasteful sparse dogishit.A couple of people have toyed with SH, I think to the point of throwing it on a lattice, but not going anywhere fast like RISC-V.RISC-V had better have a code density grater than SH, or its adoption will suffer.
