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[DPRG] Processor Communication via ADC
Subject: [DPRG] Processor Communication via ADC
From: DeltaGraph at aol.com
DeltaGraph at aol.com
Date: Wed Feb 13 20:54:43 CST 2008
Interesting Eric,
Sometimes analog signals simplify matters in my opinion.
One wire delivering a signal with no timing fussiness is a very alluring way
do to stuff.
Of course noise can be a pain -- but you can see it.
Setting timers up to generate and variable pulse widths and doing input
capture is not too tough if you have the resources available and aren't trying to
get the timer to do too many things at one time -- like I am in my current
project and it makes my head hurt.
Interesting when you think about the RC world. They use pulse widths to
convey information -- maybe for historical reasons, but then when you think about
a variable pulse width signal conveying information to an RC servo, it
starts to make good sense that it is conveyed in the pulse width and not in an
analog voltage.
So the digital POT speaks SPI or I2C, but you are figuring that would be a
mess to deliver that data to whatever processors need it?
Just me blabbering...
How often are you updating the POT?
Ron
**************The year's hottest artists on the red carpet at the Grammy
Awards. Go to AOL Music.
(http://music.aol.com/grammys?NCID=aolcmp00300000002565)
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