Subject:
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Re: Brainstorms
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 11 Aug 2002 20:41:01 GMT
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Original-From:
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Steve Baker <sjbaker1@airmail%NoSpam%.net>
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Reply-To:
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sjbaker1@airmail.!AvoidSpam!net
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Viewed:
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936 times
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Wayne Gramlich wrote:
> The RoboBricks project was started 2-1/2 years ago. At that time,
> there were no readily available and 8-pin microcontrollers with built
> in I2C support.
Are you sure? I thought Philips had teeny-tiny microprocessors with
I2C at least 10 years ago...before the I2C bus switched speeds from 100kbps
to 400kbps. I2C is about 20 years old.
> My biggest problem with I2C is addressing. Each device needs
> needs to have its address pins properly set.
Address pins? What address pins?
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Message has 2 Replies:
 | | Re: Brainstorms
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| (...) They may have had them, but they didn't show up in any of the catalogs I was looking at. Semiconductor companies are quite notorious for deciding to stop production on various chips. Lot's of people tried to standardize on the Motorola HC11 (...) (22 years ago, 12-Aug-02, to lugnet.robotics)
| | | Re: Brainstorms
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| (...) I did a project with the Philips chips several years ago. I2C worked very well, the smallest chip I used was a 87C751. A little bit bigger than an 8-pin chip, but available in surface mount packages. Also, a friend of mine used a 751 as an I2C (...) (22 years ago, 12-Aug-02, to lugnet.robotics)
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Message is in Reply To:
| | Re: Brainstorms
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| (...) The RoboBricks project was started 2-1/2 years ago. At that time, there were no readily available and 8-pin microcontrollers with built in I2C support. The Atmel tinyAVR series had some I2C support, but the chips were extremely difficult to (...) (22 years ago, 11-Aug-02, to lugnet.robotics)
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