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Viewing profile — bisrig

bisrig

HN member
Joined
Thu, Oct 27, 2011, 4:33 PM UTC
HN karma
99
Public activity
43 items

About bisrig

My main professional expertise is in FPGA design & embedded systems, but my interests run the gamut, hence why I like to (mostly) lurk here.

Recent public activity

  1. comment
    Comment #43171139

    For some reason, my first thought when I saw this was to think back to this other recent post: https://www.scottsmitelli.com/articles/ideal-candidate/ I feel like these are linked …

  2. comment
    Comment #42743622

    I'm not sure what the current state of the art is, but for the longest time it was pretty common for USB peripheral ICs to have small flash devices attached to them in order to be …

  3. comment
    Comment #24306891

    Back in the bad old days of version control (thinking of VSS here), I was overall pretty satisfied with how the check-in/check-out mechanics worked for Word docs and the like. In t…

  4. comment
    Comment #24191458

    Agree completely. I think Vanguard's UI is trying to send the message "if you're logging in you're doing it wrong".

  5. story
    Ask HN: Yearly developer tooling spend studies?

    Hi all, I'm curious as to whether anyone is aware of any trade studies or articles published regarding industry trends for how much money companies spend on a yearly basis for deve…

  6. comment
    Comment #22439865

    The StateMover concept sounds pretty interesting and is almost like the reverse of the integrated-logic-analyzer approach that the major vendors have adopted in their tooling. I as…

  7. comment
    Comment #22439850

    I don't think that long lines scaled particularly well with increasing number of LUTs and clock rates. All the black magic voodoo that goes into matching prop delay for resources l…

  8. comment
    Comment #22341611

    Something that I think is missing in the discussion here with regard to payment methods is: know your market segmentation. If you are targeting b2B (i.e. large business), there are…

  9. comment
    Comment #21887337

    Am I reading this right that the standard remote ID broadcast is specified as "something in an unlicensed band, everything else about it you figure it out"? Isn't the point of this…

  10. comment
    Comment #21677083

    I know that this doesn't directly address the question you're asking, but to give an idea of the order of magnitude of the effect: the Doppler shift in frequency rounds to f_carrie…

  11. comment
    Comment #21612026

    As an aside: it looks like the timing diagrams in this article were created with a tool called WaveDrom. I've used this tool in the past and been impressed with what it's able to d…

  12. comment
    Comment #21569643

    I have been through a similar process myself a couple years back, and just wanted to say that this is a really good effort in trying to tame a beast that doesn't really want to be …

  13. comment
    Comment #20259903

    I think the heart of what the article is getting at is represented well by the following quote: "To let GPUs blossom into the data-parallel accelerators they are today, people had …

  14. comment
    Comment #19656106

    And when Haversine isn't accurate enough: Vincenty's method. https://en.wikipedia.org/wiki/Vincenty%27s_formulae Also, another reference for both methods with calculators! Vicenty:…

  15. comment
    Comment #14715204

    Day trading has a specific definition in this context (can't remember if it's SEC, FINRA, or some other acronym), and refers to the buying and selling of the same security with a s…

  16. comment
    Comment #14153202

    I spent a few minutes poking around their project scripts, and it looks like that the design file you upload back to EC2 is a post-routed design checkpoint, which is an interesting…

  17. comment
    Comment #14153183

    I think the parent comment to yours (or at least the edited version) is right, they are almost surely XCVU9Ps based on the logic element and DSP counts. The ram numbers listed in t…

  18. comment
    Comment #12832873

    To add to this - a lot (maybe all?) of the functionality that is described by the concept of "overlays" maps to the design and implementation of the programmable logic in a coproce…

  19. comment
    Comment #12830247

    I would be careful of trivializing the last point that you made. Things like extremely long design cycles, environmental requirements, expectations of value-add engineering service…

  20. comment
    Comment #10610212

    In addition to the procedural issues already addressed, let me point out that airspace systems are extremely complicated from types of users, given the mix of commercial, GA and mi…

  21. comment
    Comment #10608870

    I think the author got a bit confused, as the next paragraph (quoting the VATSIM ATC) clarifies this statement... in the example given the ATC instruction requires readback. "Roger…

  22. comment
    Comment #9985440

    A couple of general ideas to help you scope the solution space: - If you can do something with the part still in-circuit (i.e. the PCB assembly itself is still functioning), that's…

  23. comment
    Comment #9742716

    I will never forgive the Verilog powers that be for allowing the 'reg' keyword to describe "things that are not registers". But joking aside, the differences between VHDL and Veril…

  24. comment
    Comment #9742703

    My best advice: synthesize early and often, and spend the time to poke around in the synthesis schematic viewer - Webpack still includes this I believe. It's a great way to compare…

  25. comment
    Comment #6772158

    Having been through SYR recently - the doors are pretty annoying. When I was there, they had a bunch of signs telling people to go through in groups, which was hilarious as 1) the …