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 Posted: May 16, 2012 - 01:36 AM |
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Joined: Jun 19, 2002
Posts: 950
Location: SF Bay area
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I don't think that the idea of multi-core microcontrollers makes much sense, outside of particular assymetric applications that amount to "smart peripherals" (some of the XMEGA stuff, Freescales "Time Processing Unit", etc.) Multicore is where you go after you hit the limits of process speed and power dissipation, and microcontrollers are almost by definition limited by other factors.
You can always stick two AVR on the same PCB.  |
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Posted: May 16, 2012 - 02:56 AM |
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Joined: Dec 06, 2007
Posts: 2512
Location: Redmond, WA USA
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Posted: May 16, 2012 - 04:23 AM |
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Joined: Jul 21, 2005
Posts: 1373
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Regarding multicore AVR, AVR fills a niche I think that niche is smooth and easy development it certainly is not computational horsepower and anything that makes the development cycle harder (I am guessing having another core would increase the complexity) would be detrimental to AVR.
OP if you can afford it, stick with the 48/88/168/xx8 series. It is the best value AVR on the market, you get alot more peripherals for the extra money.
If money is the primary factor then freescale has 8 bitters priced around 50 cents in 100pc quantity.
Sticking with PIC is not a horrible option, their plain vanilla 8 bit stuff is atleast cheapish though is quite slow when it comes to the core. The redeeming thing about PIC is that they have lots of peripheral options, and arguably they have a wider upgrade path than AVR. |
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Posted: May 16, 2012 - 04:28 AM |
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Joined: Sep 04, 2002
Posts: 21249
Location: Orlando Florida
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| I'm sort of in Awe of the consultant level dudes that can switch from one computer and language to another. I'm so old and stupid that I want to stick with What I Know to try and get stuff done. If the only tool you have is a hammer, every job looks like a nail. My tool is an AVR, and I'll try and use that unless it so glaringly obvious that it is about a factor of 10 too slow. However, I have duly taken notice of your out of hand Dissing of my dual core AVR idea. Wont you be embarassed if some Atmel guy thinks its a great idea? (I've already bought my Lotto tickets for Wednesday's drawing). |
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Imagecraft compiler user
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Posted: May 16, 2012 - 05:24 AM |
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Joined: Jul 21, 2005
Posts: 1373
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| I meant no disrespect bob, it is just my opinion. |
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Posted: May 16, 2012 - 05:25 AM |
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Joined: Dec 06, 2007
Posts: 2512
Location: Redmond, WA USA
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I was never "Dissing" your idea. I actually like trying new chips and a dual core AVR would be cool.
I really like the ATtiny1634 specs. Have to get out my electric frying pan for that one.
Funny, I bought lotto tickets too. |
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Larry
Those afraid to embrace the future will quickly fade into the past. - larryvc
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Posted: May 16, 2012 - 06:10 AM |
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Joined: Sep 04, 2002
Posts: 21249
Location: Orlando Florida
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| Well, I was kidding about being DisRespected. I'm glad you guys considered my idea. What if a couple of the several 1000s of AVRfreaks really came up with a good product suggestion/idea for Atmel? What if one of the Atmel Staff Engineers comes up with a New Product idea? How do the ideas get considered? So guy with a 6 figure salary just goes with his gut feel, or is an idea quantifiable somehow? (Darn marketing dudes outght to earn their money somehow). |
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Imagecraft compiler user
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Posted: May 16, 2012 - 07:49 AM |
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Joined: Dec 16, 2005
Posts: 3086
Location: Bratislava, Slovakia
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The road to the silicon hell is paved with chips which came out of the best ideas.
FPSLIC, anyone?
JW |
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Posted: May 16, 2012 - 08:22 AM |
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Joined: Dec 06, 2007
Posts: 2512
Location: Redmond, WA USA
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Posted: May 16, 2012 - 10:00 AM |
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Joined: Jul 18, 2005
Posts: 62227
Location: (using avr-gcc in) Finchingfield, Essex, England
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Quote:
and get double thruput is a win
Why wouldn't you just get a 50Mhz or 100MHz or 120MHz (or whatever) ARM? Multi-CPU are only needed at the very top end where you reach the limit of the silicon and still need to go faster. Or perhaps when you have a specific job that lends itself to parallelism - like pixel processing in a GPU.
Quote:
What's Changed.
Thank you Atmel!
Interesting page. I read that tiny43U model number and thought "interesting - small package USB chips now" but as far as I can see the U (unlike most other AVR model numbers) does not have any relation to USB. Nothing like keeping the numbers consistent! |
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Posted: May 16, 2012 - 10:07 AM |
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Joined: Dec 16, 2005
Posts: 3086
Location: Bratislava, Slovakia
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