tails4e

17 ms·

1. 211.▲
   by tails4e 4y ago

   Yes, forcing the OS on people is a bit much. Rpis are not super reliable due to sdcard wear, so i personally prefer to run it on a X86 home server, so the os is not an option then as I use it for other thigs. Currently I'm using a VM t
2. 212.▲
   by tails4e 4y ago

   I really don't think the hardware specs is the issue. OSS EDA is miles behind commercial EDA. It's great that there are efforts to create an open ecosystem, and there are some chips that are usable in those flows, but the SW is or
3. 213.▲
   by tails4e 4y ago

   Compare iverilog to VCS or xcelium, while it's brilliant, it's not even close in features or performance, and there is nothing preventing the OSS community from making it better, so the question is why? is it just a lack of people
4. 214.▲
   by tails4e 4y ago

   If you run msoffice apps on a mac you'll be burning cpu like no ones business. I've a 2019 macbook pro 16, fans rev up regularly as excel (or power point, or word..) is using 100% cpu. The mac window manager process is a hog also.
5. 215.▲
   by tails4e 4y ago

   You can clock fpga ffs from non clock signals in xilinx/amd fpgas. Not sure how well it scales, but it's possible.
6. 216.▲
   by tails4e 4y ago

   Agreed, really easy to read, yet so we'll explained on the issues, nice light style with just the right amount of humour. Really liked it.
7. 217.▲
   by tails4e 4y ago

   Advent of Code. Its a yearly coding challenge in December. Increasingly difficult problems each day, and an overall very fun way to brush up on algorithms or learn a new language.
8. 218.▲
   by tails4e 4y ago

   Thanks, I missed the linear interp part. I might look into this more for DDS, would be interesting to see how small a lut could be for 90db performance.
9. 219.▲
   by tails4e 4y ago

   Thanks, didn't see that, but it makes sense.
10. 220.▲
    by tails4e 4y ago

    Some interesting tidbits on python code and compilation performance 1) During AoC I mostly used cpython and numpy. One day my code was running too slow so I fired up pypy. It ran even slower. Turns out numpy and pypy do not play well togeth
11. 221.▲
    by tails4e 4y ago

    I'm not near a computer to check, but a 256 entry look up table, would have 1.4 degrees resolution, so using this I believe the difference between sin of 0 and sin of 1.4 is about 2%, so the error would be +/- 1%. Using a quarter
12. 222.▲
    by tails4e 4y ago

    I completely agree, and I use IPI myself as I find it adds more than it costs, I was just pointing out its not mandatory as OP was not a fan
13. 223.▲
    by tails4e 4y ago

    That's right, I already do annotate my signals that way. It doesn't bother me as I know doing this will ensure connections can be validated at the block diagram level. Clock and reset domains will be correct, interfaces that are i
14. 224.▲
    by tails4e 4y ago

    The block diagram is optional, everything can be done in Verilog. That said, I use IPI and find it very productive. Module reference flow lets you wrap Verilog modules and expose IO as interfaces so composing a top level in the block diagra
15. 225.▲
    by tails4e 4y ago

    Thanks. Really nice writeup, as usual. 1 meter accuracy is also very impressive. I wonder what is achievable today?
16. 226.▲
    by tails4e 4y ago

    Ouch. I know my rogue from my rouge, but typing on a phone has a really high error rate for me.
17. 227.▲
    by tails4e 4y ago

    I wrote a utility like ts before, called it teetime, was thrilled with my pun. It was quiteand useful when piping stdout from a compute heavy tool (multi hour EDA tool run) as you could see by the delta time between logs what the most time
18. 228.▲
    by tails4e 4y ago

    I work in IC design. The foundry do not get involved in ecos. Ecos are all done at source, before tapeout to foundry. Inserting logic into an existing design would require intimate knowledge of the design, which the foundry does not have, w
19. 229.▲
    by tails4e 5y ago

    Isn't that worse. Bitcoin is a huge energy hog.
20. 230.▲
    by tails4e 5y ago

    Is it correct that 230 mg/dl is 5.6mmol/l? We've always been told that we must keep the number below 5 at all costs for health, but this seems to be as bad as being above 6.3. Am I reading this correctly? If so, current medic
21. 231.▲
    by tails4e 5y ago

    It's nice to see pride in a civil service tech job. For the most part it's absolutely crazy how poor tech is handled in most governments, and nothing is done about it. Source: my sister waited 4 weeks for her civil service work la
22. 232.▲
    by tails4e 5y ago

    You need more SNR (power), more BW (spectrum) , or more 'channels'. 5G solves this using the last dimension, channels. Beamforming allows the same spectrum to be reused by allowing for spacial separation, i.e. use the same spectru
23. 233.▲
    by tails4e 5y ago

    always( * ) is not the same as always, I was referring to the latter. always( * ) is gated by the sensitivity list, always is not.
24. 234.▲
    by tails4e 5y ago

    I think the loop term is OK, it's just gated by the event sensitivity list for each iteration. If you have an always without a sensitivity list then it is a while(1) equivalent.
25. 235.▲
    by tails4e 5y ago

    I'd be interested in trying one of these more modern languages, but everytime I see a basic example it looks clunky, as rather than write a new language for hardware, it's 'bolted on' to a language for SW and sometimes t
26. 236.▲
    by tails4e 5y ago

    Any idea when this was written? It seems a bit out dated, and I'm especially surprised at the mention of hardware companies not using linters, that seems insane to me. Lint, Logic Equalivance, CDC, etc are all absolutely required sanit
27. 237.▲
    by tails4e 5y ago

    Agreed. The journal.ie did a very good, easy to read a analysis on the stats in terms where the headline stat comes from, but then breaks it down fairly for similar job, similar experience, etc. https://www.thejournal.ie/ge
28. 238.▲
    by tails4e 5y ago

    Diet, and wisdom are hard to put in a sentence together with a straight face. It seems this area is fraught with misinformation and disinformation. We're told to eat small amounts regularly, were told to fast intermittently, we're
29. 239.▲
    by tails4e 5y ago

    They would still make that by employing in cheaper locations also, that's the main point I was making, enginneer capability is very high in Europe (and I've direct experience by having lived and worked in both US in SV and Europe)
30. 240.▲
    by tails4e 5y ago

    I have to say I am constantly amazed at how high silicon Valley renumeration is. 600k to 1M would get you a lot of engineers pretty much anywhere else. Even if we don't look at the higher end, 200k is very common it would seem, and tha