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USB vs PS/2 vs COM vs LPT
Marsupial:
--- Quote from: Driver-Man on September 26, 2010, 12:00:17 pm ---
=====
And, for the love of drugs, why has no one taken my "dramatic persona" as a joke? What in the world is so offensive about me fooling around with "Spider-Man" spoof? It's allegory, it's a joke, it's to make it more interesting for me, to add some drama and provoke response, to see if anyone will come up with some interesting come-backs.... But that was only 2%, and Saint saw that. He was smart enough to see through my "theatricality", and wise enough to allow it continue for the sake of information. I admire that. Thank you Saint.
--- End quote ---
So you were a troll indeed.
thanks for the proof.
RandyT:
--- Quote from: MonMotha on September 26, 2010, 09:00:06 am ---Note also that games (especially arcade games being emulated in MAME) only check the inputs at a certain rate, regardless of how often new input data may be available. For arcade games, this is typically once per frame. Since the framerate is usually ~60Hz, as long as new data is available at least that often (and 120Hz+ would guarantee it), there's little to be gained from higher polling rates or lower input lag.
--- End quote ---
If anyone is to take anything away from this sillyness, it should be the nugget quoted above. Anything above what would provide absolute accuracy for the intended application is absolutely of no use. Period.
RandyT
AndyWarne:
--- Quote from: Driver-Man on September 26, 2010, 12:00:17 pm ---
Ok, you can send as many as you like as often as you like. But, of what use is that if you need to plug each byte separately, one by one, to port 0x81, and possibly even wait until application (OS) clears the port before able to put another scan code in, just like with PS/2 and port 0x60.
--- End quote ---
This is total gibberish. Anything more at this point is going to simply be troll-food.
End of story.
SavannahLion:
--- Quote from: Driver-Man on September 26, 2010, 12:00:17 pm ---=====
And, for the love of drugs, why has no one taken my "dramatic persona" as a joke? What in the world is so offensive about me fooling around with "Spider-Man" spoof? It's allegory, it's a joke, it's to make it more interesting for me, to add some drama and provoke response, to see if anyone will come up with some interesting come-backs.... But that was only 2%, and Saint saw that. He was smart enough to see through my "theatricality", and wise enough to allow it continue for the sake of information. I admire that. Thank you Saint.
--- End quote ---
Because it's lame. It's stupid. It's immature. It's disrespectful to Saint and the community as a whole. It's clear that you do not respect those who know a hell of a lot more than you. Worse, you present patently incorrect information as absurdly correct then blame everyone else who is correct as wrong, wrong, wrong. Then you insist on being spoonfed the information condensed, itemized and fully referenced. Then when someone does point you to what you need to read, you just hop around asking, "where? where? where?"
What if the discussion had been about wiring up LED's and you told everyone to wire up Randy's LED lightbar directly to 120v? Or told everyone that they didn't need an isolation transformer?
This was just about application layers. Last time it was copyright. What's the next load of nonsense?
I say enough with the theatrical nonsense. It's not needed or required here.
If you have a question or want to present your work for peer review, then do so without all the "theatrical" ---That which is odiferous and causeth plants to grow---.
Driver-Man:
--- Quote from: Marsupial ---So you were a troll indeed.
--- End quote ---
I can not respond, nor improve, unless I know what are you actually complaining about. What are you accusing me of? What am I doing wrong and how does that hurt you or anyone?
--- Quote from: RandyT ---If anyone is to take anything away from this sillyness, it should be the nugget quoted above. Anything above what would provide absolute accuracy for the intended application is absolutely of no use. Period.
RandyT
--- End quote ---
Only Sith deals in absolutes.
Would you mind if we go on and measure it anyway?
Why do you not make USB keyboard encoders, but only PS/2?
--- Quote from: AndyWarne ---This is total gibberish. Anything more at this point is going to simply be troll-food. End of story.
--- End quote ---
Do you mind if we actually measure it, may I?
TEST: Press Q+W+E+R at the same time, hold for a while, and then release them in the same
* USBTrace 1.3.0
http://www.topshareware.com/USBTrace-transfer-42419.htm
* Passmark keyboard test
http://www.passmark.com/products/keytest.htm
It is clear in from both programs that regardless of USB keyboard packet size, there can only be retrieved a maximum of ONE KEY per 8ms, thus 4 simultaneous key presses, like in my example above, will still need to communicate four packets, with lag between each one that equals to Windows default USB polling rate, on this particular computer of mine. As I was saying all along.
Yes, SavannahLion, I do have a question.
Please let me know the numbers you get with these two programs. Press [Q+W+E+R] at the same time, hold for a while and release them in the same, then simply capture the screenshots and show us how many keys per second is your computer capable of. Can you do that, please?
- "Mutants. Since the discovery of their existence they have been regarded with fear, suspicion, often hatred. Across the planet, debate rages... Either way it is a historical fact: Sharing the world has never been humanity's defining attribute."
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