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iron2disulfide

HN member
Joined
Thu, Jul 23, 2020, 5:36 PM UTC
HN karma
90
Public activity
23 items

About iron2disulfide

Hardware hacker. Work in ASIC/FPGA design for DSP/AI/video.

Recent public activity

  1. comment
    Comment #39636057

    I find your company fascinating, having also worked on chips (and chip dev tooling) for much of my career. > But they want to work on chips, not devtools! I have long had a gut fee…

  2. comment
    Comment #36574686

    I started my career off in the chip design world, where 100% line, branch, FSM transition, functional group, and toggle (i.e. individual bits in a bus switching 0 -> 1 _and_ 1 -> 0…

  3. comment
    Comment #34213216

    The functionality of the F-91W is simple enough that I don't think a CPU would even be needed. Probably the digital parts of this chip are just state machines. That being said, the…

  4. comment
    Comment #34175712

    The "Silicon" part of Silicon Valley is still very much relevant. Intel, AMD, nVidia, etc. all have major presences down there. There's also a multi-billion dollar industry support…

  5. comment
    Comment #33793290

    Gate-level simulation (even zero-delay, let's not mention delay-aware or even power-aware) for a modern-sized CPU takes weeks just to run through some basic liveliness checks. See …

  6. comment
    Comment #33567087

    > Most don't Is this true? I'm pretty sure that most of the regex engines I've used (grep, ripgrep, re2, hyperscan) use Thompson's construction or at least some NFA-based algorithm…

  7. comment
    Comment #33265279

    Based purely on the name and a super quick scroll through the github page, it's probably the Lattice ice-series of chips, even more probably the ice40. There are a couple boards wi…

  8. comment
    Comment #32867945

    (Digital) chip designer here: this is super cool. What tech node are you targeting? Have you checked out any of the free open-source tools and PDK from Skywater, Google, eFabless a…

  9. comment
    Comment #32830409

    The $1k figure quoted by OP is not indicative of the average price of licenses in my experience. There are plenty of tools that are $15k+ in the EDA world, and various engineers in…

  10. comment
    Comment #32455013

    I almost got kicked out because I "looked like" someone who had vandalized something or other the day before. They pulled me out of class, called me names, made me sit in their lit…

  11. comment
    Comment #32311345

    There are still SWEs that use the Linux laptops. There are dozens of us!

  12. comment
    Comment #31870391

    Related to this, are there any open source audio interfaces, something that can replace a Focusrite 2i2?

  13. comment
    Comment #31761896

    That makes sense. It kind of seems like the new program will be sort of a mish-mash of ChE, systems eng, and ECE (i.e. what it takes to actually run a fab). In fairness, I think ov…

  14. comment
    Comment #31761886

    In chronological order: a fabless IP company, FPGA company, FAANG company. I've since taken a hiatus from chip design.

  15. comment
    Comment #31758681

    Skimmed the article; what's the difference between this program and what's already taught in electrical and computer engineering classes? I studied ECE for my BS and MS and there w…

  16. comment
    Comment #31065152

    I've worked with Samsung Semiconductor as a partner/customer and it did seem to me from the outside that there was a culture of not admitting mistakes/failings, and poor communicat…

  17. comment
    Comment #26639689

    TIL about JDK's vector API. That's awesome; I mostly work in the C and C++ space and have learned to embrace the gigantic ifdef's for various arch-specific vectorized instructions.…

  18. comment
    Comment #25062320

    Verilog, VHDL, and SystemVerilog are supported by Vivado. A small subset of C++ is supported through Vivado's high level synthesis compiler, which transforms some C++ code into Ver…

  19. comment
    Comment #25040965

    Of course "the same HDL" is a reductive statement, since components like high-speed IO, or even clock gates are not easily portable between FPGA vendors or foundries. But the user-…

  20. comment
    Comment #24830597

    I'd like to know more about the PCIe Gen2. From your comment it sounds like the root port is capable of Gen2x2, or is it 2x Gen2x1 ports? If I wanted to attach a PCIe accelerator c…

  21. comment
    Comment #23931767

    Haha, I am kind of the opposite: I work on electronics, and am not much of a sys admin. One of the problems I've run into is that I haven't found a single switch solution with enou…

  22. comment
    Comment #23931135

    This is cool. Any chance this would scale for many machines? I have a ~15 machine lab with no KVM setup right now, and could really use something like this if it works for a large …

  23. comment
    Comment #23929909

    There are a lot of companies who create multi-FPGA boards. The market for FPGAs-for-ASIC-prototyping is substantial.