* Posts by Electronics'R'Us

7 posts • joined 13 Jul 2018

Redis does a Python, crushes 'offensive' master, slave code terms

Electronics'R'Us

Re: MISO

To say nothing of the (probably) 10s of thousands of schematics already done with those names.

Let's not forget about the netlist too - will the manufacturers get offended at netlist test when they make sure that a MISO connects to another device MOSI?

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Electronics'R'Us

What next?

Are we going to get lots of requests to change the naming of pins on hardware SPI interfaces from the perfectly descriptive MISO/MOSI?

Or perhaps the Power architecture mnemonic EIEIO being offensive to farmers? (I remember seeing a comment in the source that said // Old Macdonald had a farm).

How about slaved power supplies for proper sequencing should be renamed? Dependent? (Can't have that, implies economic status)

Maybe the term 'bit twiddling' can be offensive (sexual incorrectness)

The list goes on; these terms are used because they perfectly describe the relationship in hardware.

Get a grip! (Oh, is that offensive too?)

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Microsoft: You don't want to use Edge? Are you sure? Really sure?

Electronics'R'Us
Devil

Re: Windows is not always optional

"Are the toolsets able to run on wine or a VM?"

That depends on the processing power and memory you have. Running natively on Win10 my tools use the best part of 8GB without doing 'special' stuff. This is a (logical) quad core machine and even so startup and entering a new mode can take quite a while. Most of the engineering tools I know of (be they CAD, heavy duty simulation (think hyperlynx) or whatever) recommend at least 16GB memory installed.

The graphics are also pretty intensive, as would be expected for a CAD tool.

I haven't tried to run these tools in a VM yet; perhaps I will try and see what happens, but I am not particularly hopeful as these tools typically get as close to the graphics hardware as possible.

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Electronics'R'Us
Devil

Windows is not always optional

Don't get me wrong; I really like Linux (and even write code for it sometimes), but my CAD tools (I design hardware too) are Windows only.

Yes, there are alternatives, but for the feature set I need I would need to fork out at least another £10k for the tools that can run on Linux (there is at least one professional toolset that does), and the feature sets of the free / open alternatives simply are not up there - yet.

That said, I do limit my time in Win10 to only when I need to use tools that are Windows only.

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Criminal justice software code could send you to jail and there’s nothing you can do about it

Electronics'R'Us

Previous issues with 'trade secret' software

In 2005, a judge ruled (upheld in US circuit court) that a DUI defendant had the right to have the breathalyzer source code revealed and reviewed.

Perhaps this software might be subject to the same analysis.

https://news.slashdot.org/story/09/01/15/195242/breathalyzer-source-code-ruling-upheld

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Insecure web still too prevalent: Boffins unveil HSTS wall of shame

Electronics'R'Us

https helps prevent this

Comcast (amongst others, apparently), likes to inject their own code to websites requested.

https://thenextweb.com/insights/2017/12/11/comcast-continues-to-inject-its-own-code-into-websites-you-visit/

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AR upstart Magic Leap reveals majorly late tech specs' tech specs

Electronics'R'Us

There is more to these than processing power

Having done quite a lot of work on helmet mounted and head mounted displays, it is clear that these people do not understand the system level latency problem.

There are helmet mounted displays in a number of applications for military aircraft (Typhoon and F-35 come to mind), and the architecture to achieve a smooth transition when the pilot moves their head around is anything but easy (but rater necessary as there is conformal data such as is displayed on a HUD like heading, aircraft attitude and altitude to name a few). This issue has to be solved at system level and virtually no amount of processing grunt will save them from this issue if the data paths have not been carefully constructed.

Another issue is pre-distortion of the imagery because displaying on a curved surface requires the image to be manipulated to appear to be flat and that adds latency as well quite apart from getting the video from sensors in the first place.

Seems like they need to go back to a drawing board and analyse their various path delays.

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