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Old 11-23-2008, 01:39 AM #17
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Default Re: help with programmable logic chips?

Even running at 4Mhz clock speed... the PIC Micro Controllers run at
1 MIPS (1 Million Instructions per second)... 8-)


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Old 11-23-2008, 04:08 AM #18
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Default Re: help with programmable logic chips?

Quote:
Originally Posted by lasersbee
Even running at 4Mhz clock speed... the PIC Micro Controllers run at
1 MIPS (1 Million Instructions per second)... 8-)
yeah... what I could have done with one of those when I was in high school!

1966-1969... could probably have replaced all the computational power of the Strategic Air Command or something *:P
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Old 11-23-2008, 09:19 AM #19
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Default Re: help with programmable logic chips?

Quote:
Originally Posted by lasersbee
Even running at 4Mhz clock speed... the PIC Micro Controllers run at
1 MIPS (1 Million Instructions per second)... 8-)
Atmel have some good microcontrollers too. Have a look at www.avrfreaks.net there is lots of support in the forums there. You can program them in C with WinAVR which is free and open source based on AVRGCC. It can be used from within atmels AVR Studio where you get a simulator where you can single step through your code. If you have a parallel port, you can make a programmer with a few resistors

I sound like an advertisement


EDIT: Forgot to mention, more MIPS than PIC's. Nearly a mip / mhz. Most instructions take 1 clock cycle. Not that you necessarily need more MIPS.
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Old 11-23-2008, 01:45 PM #20
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Default Re: help with programmable logic chips?

Quote:
Originally Posted by lasersbee
Even running at 4Mhz clock speed... the PIC Micro Controllers run at
1 MIPS (1 Million Instructions per second)... 8-)
Indeed... but if you want to make a logic gate that takes perhaps 10 instructions or so, it would have a delay of 10 microseconds - which is unaccaptably bad for discrete logic gates.
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Old 11-23-2008, 03:14 PM #21
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Default Re: help with programmable logic chips?

Quote:
Originally Posted by Benm
[quote author=lasersbee link=1226648479/0#16 date=1227407989]Even running at 4Mhz clock speed... the PIC Micro Controllers run at
1 MIPS (1 Million Instructions per second)... 8-)
Indeed... but if you want to make a logic gate that takes perhaps 10 instructions or so, it would have a delay of 10 microseconds - which is unaccaptably bad for discrete logic gates. [/quote]


I agree with you that there are much faster components and micro controllers available...
We (the members here) are just trying to help "danq" *find what he is looking for.....
and answer his questions...

Quote:
But my app is really simple, limited in function and very few I/O bits - basically it just translates momentary pushbutton switch actions to control a laser driver.
I have a hard time seeing why even a Turttle Slow 1 MIP micro controller could not keep up
with the speed it takes to press a button and to turn ON a Laser Driver.... :-?

There is no sense in buying a 747 to cross the street... IMHO :
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Old 11-23-2008, 03:54 PM #22
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Default Re: help with programmable logic chips?

Quote:
There is no sense in buying a 747 to cross the street... IMHO
If its bad weather, park it across - you'll get the nice and dry
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Old 11-23-2008, 04:02 PM #23
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Default Re: help with programmable logic chips?

Quote:
Originally Posted by Benm
Quote:
There is no sense in buying a 747 to cross the street... IMHO
If its bad weather, park it across - you'll get the nice and dry
;D ;D ;D ;D and block the traffic... ;D ;D ;D
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